Topcon Marine Instruments Gpt 2000 Users Manual 2000EngFW

GPT-2003 to the manual fa1cbc4e-4122-4812-a703-90da286330a4

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INSTRUCTION MANUAL

PULSE TOTAL STATION

GPT-2000 SERIES

GPT-2003
GPT-2005
GPT-2006
GPT-2009

FOREWORD
Thank you for purchasing the TOPCON Pulse Total Station, GPT-2000 series. For
the best performance of the instruments, please carefully read these instructions
and keep them in a convenient location for future reference.

1

General Handling Precautions
Before starting work or operation, be sure to check that the instrument is
functioning correctly with normal performance.
Do not submerge the instrument into water.
The instrument can not be submerged underwater.
The instrument is designed based on the International Standard IP66, therefore it is
protected from the normal rainfall.

Setting the instrument on a tripod
When mounting the instrument on a tripod, use a wooden tripod when possible. The
vibrations that may occur when using a metallic tripod can effect the measuring precision.

Installing the tribrach
If the tribrach is installed incorrectly , the measuring precision could be effected.
Occasionally check the adjusting screws on the tribrach. Make sure the base fixing lever is
locked and the base fixing screws are tightened.

Guarding the instrument against shocks
When transporting the instrument, provide some protection to minimize risk of shocks.
Heavy shocks may cause the measurement to be faulty.

Carrying the instrument
Always carry the instrument by its handgrip.

Exposing the instrument to extreme heat.
Do not leave the instrument in extreme heat for longer than necessary. It could adversely
affect its performance.

Sudden changes of temperature
Any sudden change of temperature to the instrument or prism may result in a reduction of
measuring distance range, i.e when taking the instrument out from a heated vehicle. Let
instrument acclimate itself to ambient temperature.

Battery level check
Confirm battery level remaining before operating.

Taking the battery out
It is recommended not to take the battery out during the power is on. All the data stored is
possible gone at that time. So please do your assembling or taking the battery out after the
power is off.

Noise from the inside of instrument
When EDM turns on, the sound of motors from inside the instrument body may be
heard. This is normal and does not effect operation of the instrument.

2

Display for Safe Use
In order to encourage the safe use of products and prevent any danger to the operator and
others or damage to properties, important warnings are put on the products and inserted in the
instruction manuals.
We suggest that everyone understand the meaning of the following displays and icons before
reading the “Safety Cautions” and text.

Meaning

Display
WARNING

Ignoring or disregard of this display may lead to the danger of death or
serious injury.

CAUTION

Ignoring or disregard of this display may lead to personal injury or physical damage.

•Injury refers to hurt, burn, electric shock, etc.
•Physical damage refers to extensive damage to buildings or equipment and furniture.

Safety Cautions
WARNING
•There is a risk of fire, electric shock or physical harm if you attempt to disassemble or
repair the instrument yourself.
This is only to be carried out by TOPCON or an authorized dealer, only!
•Cause eye injury or blindness.
Do not look at the sun through a telescope.
•Laser beams can be dangerous, and can cause eye injury's if used incorrectly.
Never attempt to repair the instrument yourself. (Only for Laser plummet type)
•Cause eye injury or blindness.
Do not stare into beam. (Only for Laser plummet type)
•High temperature may cause fire.
Do not cover the charger while it is charging.
•Risk of fire or electric shock.
Do not use damaged power cable, plug and socket.
•Risk of fire or electric shock.
Do not use a wet battery or charger.
•May ignite explosively.
Never use an instrument near flammable gas, liquid matter, and do not use in a coal mine.
•Battery can cause explosion or injury.
Do not dispose in fire or heat.
•Risk of fire or electric shock.
Do not use any power voltage except the one given on manufacturers instructions.
•Battery can cause outbreak of fire.
Do not use any other type of charger other than the one specified.
•Risk of fire.
Do not use any other power cable other than the one specified.
•The short circuit of a battery can cause a fire.
Do not short circuit battery when storing it.

3

CAUTION
•Use of controls or adjustment or performance of procedures other than those specified herein
may result in hazardous radiation exposure.
•Do not connect or disconnect equipment with wet hands, you are at risk of electric shocks if you
do!
•Risk of injury by overturn the carrying case.
Do not stand or sit on the carrying cases.
•Please note that the tips of tripod can be hazardous, be aware of this when setting up or carrying the tripod.
•Risk of injury by falling down the instrument or case.
Do not use a carrying case with a damaged which belts, grips or latches .
•Do not allow skin or clothing to come into contact with acid from the batteries, if this does occur
then wash off with copious amounts of water and seek medical advice.
•A plumb bob can cause an injury to a person if used incorrectly.
•It could be dangerous if the instrument falls over, please ensure you attach a handle battery to
the instrument securely.
•Ensure that you mount the Tribrach correctly, failing to do so may result in injury if the tribrach
were to fall over.
•It could be dangerous if the instrument falls over, please check that you fix the instrument to
the tripod correctly.
•Risk of injury by falling down a tripod and an instrument.
Always check that the screws of tripod are tightened.

User
1)This product is for professional use only!
The user is required to be a qualified surveyor or have a good knowledge of surveying, in order to
understand the user and safety instructions, before operating, inspecting or adjusting.
2)Wear the required protectors (safety shoes, helmet, etc.) when operating.

Exceptions from Responsibility
1)The user of this product is expected to follow all operating instructions and make periodic checks of the
product’s performance.
2)The manufacturer, or its representatives, assumes no responsibility for results of a faulty or intentional
usage or misuse including any direct, indirect, consequential damage, and loss of profits.
3)The manufacturer, or its representatives, assumes no responsibility for consequential damage, and
loss of profits by any disaster, (an earthquake, storms, floods etc.).
A fire, accident, or an act of a third party and/or a usage any other usual conditions.
4)The manufacturer, or its representatives, assumes no responsibility for any damage, and loss of profits
due to a change of data, loss of data, an interruption of business etc., caused by using the product or
an unusable product.
5)The manufacturer, or its representatives, assumes no responsibility for any damage, and loss of profits
caused by usage except for explained in the user manual.
6)The manufacturer, or its representatives, assumes no responsibility for damage caused by wrong
movement, or action due to connecting with other products.

4

Safety Standard for Laser Beam
GPT-2000 series uses the invisible laser beam. The GPT-2000 series are manufactured and sold in
accordance with "Performance Standards for Light-Emitting Products" (FDA/BRH 21 CFR 1040) or
"Radiation Safety of Laser Products, Equipment Classification, Requirements and User`s Guide" (IEC
Publication 825) provided on the safety standard for laser beam.
As per the said standard, the GPT-2000 series plumb laser type is classified as "Class 1 (l) Laser
Products".
In case of any failure, do not disassemble the instrument. Contact TOPCON or your TOPCON dealer.

Safety Standard for Laser Beam
(Only for GPT-2000 series Plumb Laser Type)
GPT-2000 series plumb laser type uses the visible laser beam. The GPT-2000 series plumb laser type
are manufactured and sold in accordance with "Performance Standards for Light-Emitting Products"
(FDA/BRH 21 CFR 1040) or "Radiation Safety of Laser Products, Equipment Classification,
Requirements and User`s Guide" (IEC Publication 825) provided on the safety standard for laser beam.
As per the said standard, the GPT-2000 series plumb laser type is classified as "Class 2 ( II) Laser
Products".
In case of any failure, do not disassemble the instrument. Contact TOPCON or your TOPCON dealer.

Labels
Find the labels which describes the caution and safety about the laser beam as follows in GPT-2000
series.
We request you to replace it one anytime the caution labels are damaged or lost and paste a new one
at the same place. You can get the labels from Topcon or your dealer.
GPT-2000 series
Laser Plummet type

Warning Label
Explanatory Label

CAUTION
LASER RADIATION-DO NOT
STARE INTO BEAM
WAVE LENGTH 633nm
1mW MAXIMUM OUTPUT
CLASS II LASER PRODUCT

Aperture Label

LASER RADIATION
DO NOT STARE INTO BEAM
Maximum output 1ｍW  Wave length 633nm

AVOID EXPOSURE

CLASS 2 LASER PRODUCT

LASER LIGHT IS EMITTED
FROM THIS APERTURE

Beam aperture
Depending on the country where the instrument is sold, either of these labels may be
found on the GPT-2000 series laser plummet type.

Symbol mark while the laser is emitting.
The following symbol mark will appear at the
right side of the second line.

TILT SENSOR:[XY-ON]
X:-0°00'25"
Y: 0°00'20"
X-ON XY-ON OFF L.PL

5

Symbol mark

Contents
FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General Handling Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Display for Safe Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Safety Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
User . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Exceptions from Responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Safety Standard for Laser Beam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Safety Standard for Laser Beam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Symbol mark while the laser is emitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Standard Set Composition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

1 NOMENCLATURE AND FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1
1.2
1.3
1.4
1.5

Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Operating Key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Function Key (Soft Key) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Serial signal RS-232C connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

2 PREPARATION FOR MEASUREMENT . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8

Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Setting Instrument Up For Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Power Switch Key ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Battery Power Remaining Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Vertical and Horizontal Angle Tilt Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
How to Enter Alphanumeric characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Point Guide (Only for Point Guide type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Laser Plummet ON/OFF (Only for Laser Plummet type) . . . . . . . . . . . . . . . . . . . . . . . 2-9

3 ANGLE MEASUREMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 Measuring Horizontal Angle Right and Vertical Angle . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2 Switching Horizontal Angle Right/Left. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.3 Measuring from the Required Horizontal Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.3.1 Setting by Holding the Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.3.2 Setting a Horizontal Angle from the Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.4 Vertical Angle Percent Grade(%) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.5 Repetition Angle Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.6 Buzzer Sounding for Horizontal Angle 90° Increments . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3.7 Compasses ( vertical angle) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

4 DISTANCE MEASUREMENT . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1
4.2
4.3
4.4
4.5
4.6
4.7

Setting of the Atmospheric Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Setting of the Correction for Prism Constant / Non-prism Constant . . . . . . . . . . . . . . . 4-1
Distance Measurement (Continuous Measurement) . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Distance Measurement (N-time Measurement/Single Measurement) . . . . . . . . . . . . . . . . . . . 4-3
Fine Mode/Tracking Mode/Coarse Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Stake Out (S.O) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Offset Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4.7.1 Angle Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.7.2 Distance Offset Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
4.7.3 Plane Offset Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
4.7.4 Column Offset Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

5 COORDINATE MEASUREMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1
5.2
5.3
5.4

Setting Coordinate Values of Occupied Point. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Setting Height of the Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Setting Height of Target (Prism Height) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Execution of Coordinate Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

6 SPECIAL MODE (Menu Mode). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6

6.1 Application Measurement (PROGRAMS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.1.1 Remote Elevation measurement (REM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.1.2 Missing Line Measurement (MLM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
6.1.3 Setting Z Coordinate of Occupied Point. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
6.1.4 Area Calculation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
6.1.5 Point to Line Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
6.2 Setting the GRID FACTOR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
6.3 Setting Illumination of Display and Cross Hairs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
6.4 Setting Mode 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
6.4.1 Setting Minimum Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
6.4.2 Auto Power Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
6.4.3 Vertical and Horizontal Angle Tilt correction ( Tilt ON/OFF) . . . . . . . . . . . . . . . 6-20
6.4.4 Systematic Error of Instrument Correction (only for GPT-2003/2005/2006) . . . 6-20
6.4.5 Selecting Battery Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
6.5 Setting Contrast of Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

7 DATA COLLECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.1 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.1.1 Selecting a File for Data Collection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.1.2 Selecting a Coordinate File for Data Collection . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
7.1.3 Occupied Point and Backsight Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
7.2 Operational Procedure of “DATA COLLECT” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
7.2.1 Searching the recorded data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
7.2.2 Entering PCODE / ID using PCODE Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
7.2.3 Entering PCODE / ID from the list of PCODE . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
7.3 Data Collect Offset Measurement mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
7.3.1 Angle Offset Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
7.3.2 Distance Offset Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
7.3.3 Plane Offset Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
7.3.4 Column Offset Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16
7.4 NEZ Auto Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
7.5 Editing PCODE Library [PCODE INPUT] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
7.6 Setting Parameter of Data Collect [CONFIG.] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

8 LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.1 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
8.1.1 Setting the GRID FACTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
8.1.2 Selecting Coordinate Data File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
8.1.3 Setting Occupied Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
8.1.4 Setting Backsight Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
8.2 Executing a Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
8.3 Setting a New Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
8.3.1 Side Shot Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
8.3.2 Resection Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13

9 MEMORY MANAGER MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
9.1 Display Internal Memory Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
9.2 Searching Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
9.2.1 Measured Data Searching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
9.2.2 Coordinate Data Searching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
9.2.3 PCODE LIBRARY Searching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
9.3 FILE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
9.3.1 Rename a File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
9.3.2 Searching Data in a File. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
9.3.3 Deleting a File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
9.4 Coordinate Data Direct Key Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10
9.5 Delete a Coordinate Data from a File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
9.6 Editing PCODE Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12
9.7 Data Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
9.7.1 Sending Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13

7

9.7.2 Loading Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14
9.7.3 Setting Parameter of Data Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-15
9.8 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-16

10 SET AUDIO MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
11 SETTING THE PRISM / NON-PRISM CONSTANT VALUE . . . . . . . 11-1
12 SETTING ATMOSPHERIC CORRECTION . . . . . . . . . . . . . . . . . . . . 12-1
12.1 Calculation of Atmospheric Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
12.2 Setting of Atmospheric Correction Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

13 CORRECTION FOR REFRACTION AND EARTH CURVATURE . . . 13-1
13.1 Distance Calculation Formula. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

14 POWER SOURCE AND CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . 14-1
14.1 On-board Battery BT-52QA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

15 DETACH/ATTACH OF TRIBRACH. . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1
16 SELECTING MODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1
16.1 Items of the Selecting Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1
16.2 How to Set Selecting Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-3

17 CHECK AND ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-1
17.1 Checking and adjusting of instrument constant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-1
17.1.1 Checking of the accuracy of the non-prism mode . . . . . . . . . . . . . . . . . . . . . . 17-1
17.2 Checking the Optical Axis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-2
17.3 Checking/Adjusting the Theodolite Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-4
17.3.1 Checking /Adjusting the Plate Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-5
17.3.2 Checking /Adjusting the Circular Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-5
17.3.3 Adjustment of the Vertical Cross-hair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-6
17.3.4 Collimation of the Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-7
17.3.5 Checking / Adjusting the Optical Plummet Telescope . . . . . . . . . . . . . . . . . . . 17-8
17.3.6 Checking / Adjusting the Laser Plummet (For Laser Plummet type) . . . . . . . . 17-9
17.3.7 Adjustment of Vertical Angle 0 Datum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-10
17.4 How to Set the Instrument Constant Value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-11
17.5 Adjustment of Compensation Systematic Error of Instrument . . . . . . . . . . . . . . . . 17-12

18 PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-1
19 SPECIAL ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-1
20 BATTERY SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
21 PRISM SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-1
22 ERROR DISPLAYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1
23 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1
APPENDIX ..................................................................................... Appendix-1
Dual Axis Compensation ....................................................................................... Appendix-1
Precaution when Charging or Storing Batteries..................................................... Appendix-3

8

Standard Set Composition
1)
2)
3)
4)
5)
6)
7)
8)

GPT-2000 series (with lens cap) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 each
On-board Battery BT-52QA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 each
Battery charger BC-27BR or BC-27CR . . . . . . . . . . . . . . . . . . . . . . . . . 1 each
Tool kit with case [2 rod pins, screwdriver , hexagonal wrench
cleaning brush, silicon cloth] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 set
Plastic carrying case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 each
Sun shade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 each
Plastic rain cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 each
Instruction manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 each

(Make sure that all of the above items are with the instrument when purchased.)
Remarks:
1) Battery charger BC-27CR is for AC 230V use and BC-27BR is for AC 120V use.
2) Plumb bob set and plumb bob hook are supplied for certain markets.
3) Additional On-board Battery BT-52QA may be included in some markets.

9

1 NOMENCLATURE AND FUNCTIONS

1

NOMENCLATURE AND FUNCTIONS
1.1 Nomenclature
Handgrip locking screw

Handgrip

Point guide
(Point guide type only)

Objective lens

Instrument
center mark

Display unit

Optical plummet
telescope
(Optical plummet
telescope type only)

(Only for GPT-2003/
2005)

Circular level

Adjustment screw
for circular level

Leveling screw

Base

Tribrach fixing lever

1-1

1 NOMENCLATURE AND FUNCTIONS

Sighting collimator

Battery locking lever

Telescope focusing knob

Telescope grip
On-board battery
BT-52QA
Telescope eyepiece
Instrument
center mark
*Vertical motion clamp
*Vertical tangent screw
Horizontal
tangent screw
Plate level

Horizontal
motion clamp

Display unit

Power supply
connector
Serial Signal
connector

*The position of vertical motion clamp and Vertical tangent screw will differ depending on the market.

1-2

1 NOMENCLATURE AND FUNCTIONS

1.2 Display
● Display
The display uses a dot matrix LCD which has 4 lines and 20 characters per line. In general, the
upper three lines display measured data, and the bottom line displays the soft key function which
changes with the measuring mode.
● Contrast and Illumination
The contrast and illumination of display window are adjusted. See Chapter 6 “SPECIAL MODE
(Menu Mode)”.
● Example

V : 90°10'20"
HR: 120°30'40"

HR: 120°30'40"
HD*
65.432 m
VD:
12.345 m
MEAS MODE NP/P P1↓

0SET HOLD HSET P1↓
Angle measurement mode

Distance measurement mode

V-angle
H-angle

Horizontal-angle
: 120°30’40”
Horizontal distance : 65.432m
Relative elevation : 12.345m

: 90°10’20”
: 120°30’40”

Feet and inch unit

Feet unit

HR: 120°30'40"
HD* 123.45 f
VD:
12.34 f
MEAS MODE NP/P P1↓

HR: 120°30'40"
HD*
123.04.6f
VD:
12.03.4f
MEAS MODE NP/P P1↓
Horizontal-angle
: 120°30’40”
Horizontal distance : 123ft4in6/8in
Relative elevation : 12ft3in4/8in

Horizontal-angle
: 120°30’40”
Horizontal distance : 123.45ft
Relative elevation : 12.34ft

● Display marks
Display

Contents

Display

Content

V

V-angle

✻

EDM working

HR

H-angle right

m

Meter unit

HL

H-angle left

f

Feet unit / Feet and inch unit

HD

Horizontal distance

VD

Relative elevation

SD

Slope distance

N

N coordinate

E

E coordinate

Z

Z coordinate

N

1-3

P

Switches non-prism mode or prism mode

1 NOMENCLATURE AND FUNCTIONS

1.3 Operating Key

Keys

Name of Key

Function

Coordinate
meas.key

Coordinate measurement mode

Distance meas.key

Distance measurement mode.

ANG

Angle meas.key

Angle measurement mode

MENU

Menu key

Switches menu mode and normal mode. To set application measurements
and adjust in the menu mode.

ESC

Escape key

● Returning to the measurement mode or previous layer mode from the
mode set.
● To be DATA COLLECTION mode or LAYOUT mode directly from the
normal measurement mode.
● It is also possible to use as Record key in normal measurement mode.
To select function of Escape key, see Chapter 16 “SELECTING MODE”
.

POWER

Power source key

F1–F4

Soft key
( Function key)

ON/OFF of power source
Responds to the message displayed.

1.4 Function Key (Soft Key)
The Soft Key message is displayed at the bottom line of display. The functions are according to the
displayed message.
Angle measurement mode

Distance measurement mode

V: 90°10'20"
HR:120°30'40"

HR:120°30'40"
HD*[r]
<
Other displays disappear.

Note: 1

2
3

Measurement is impossible.
Need to recharge or replace
the battery.

The battery operating time will vary depending on the environmental conditions such as
ambient temperature, charging time, the number of times of charging and discharging etc.
It is recommended for safety to charge the battery beforehand or to prepare spare full
charged batteries.
For general usage of the battery, see Chapter 14 “POWER SOURCE AND CHARGING” .
The battery power remaining display shows the power level regarding to the
measurement mode now operating.
The safety condition indicated by the battery power remaining display in the angle
measurement mode does not necessarily assure the battery’s ability to be used in the
distance measurement mode.
It may happen that the mode change from the angle mode to the distance mode will stop
the operation because of insufficient battery power for the distance mode which
consumes more power than angle mode.

2-4

2 PREPARATION FOR MEASUREMENT

2.5 Vertical and Horizontal Angle Tilt Correction
(GPT-2009 has vertical angle tilt correction only.)
When the tilt sensors are activated, automatic correction of vertical and horizontal angle for
mislevelment is displayed.
To ensure a precise angle measurement, tilt sensors must be turned on. The display can also be used
to fine level the instrument. If the (TILT OVER) display appears the instrument is out of automatic
compensation range and must be leveled manually.
Zenith
Zenith
Standing axis
Standing axis

Inclination of the standing
axis in the Y direction

Inclination of the standing
axis in the X direction

Trunnion axis

Horizontal

● GPT-2000 compensates both the vertical angle and the horizontal angle readings due to inclination
of the standing axis in the X and Y directions .
● For more information about dual axis compensation, refer to APPENDIX 1 “Dual Axis
Compensation”.
When the instrument is out of compensation. (TILT OVER)

V :
HR:

°
°

'
'

"
"


Standing Axis in the X direction
out of range

V :
HR:

°
°

'
'

"
"


Standing Axis in the Y direction
out of range

V :
HR:

°
°

'
'

"
"


Standing Axis in the X and Y
directions out of range

● The display of Vertical or Horizontal angle is unstable when instrument is on an unstable stage or a
windy day. You can turn off the auto tilt correction function of V/H angle in this case.
● To set auto tilt correction from the moment that power is on, see Section 6.4.3“Vertical and
Horizontal Angle Tilt correction ( Tilt ON/OFF)” .

2-5

2 PREPARATION FOR MEASUREMENT
● Setting Tilt Correction by Soft Key
To enable you to select tilt ON/OFF function. setting is not memorized after power is OFF.
[Example] Setting X,Y Tilt OFF
Operating procedure

Option

1 Press [F4] key to get the function page 2.

[F4]

Display

V :
HR:

90°10'20"
120°30'40"

0SET

HOLD HSET

TILT
2 Press [F1](TILT) key.
In case ON is already selected, the display shows
tilt correction value.

3 Press [F3](OFF) key.

REP

V%

P1↓
P2↓

[F1]

TILT SENSOR:[XY-ON]
X:-0°00'25"
Y: 0°00'20"
X-ON XY-ON OFF ---

[F3]

TILT SENSOR:

[OFF]

X-ON XY-ON OFF --4 Press [ESC] key.

[ESC]

V :
HR:
TILT

90°10'20"
120°30'40"
REP

V%

P2↓

● The setting mode performed here will not be memorized after powering OFF. To set TILT correction in
the initialized setting ( it is memorized after powering OFF), see Section 6.4.3“Vertical and Horizontal
Angle Tilt correction ( Tilt ON/OFF)” .

2-6

2 PREPARATION FOR MEASUREMENT

2.6 How to Enter Alphanumeric characters
This enables you to enter alphanumeric characters such as the instrument height, prism height,
occupied point, backsight point etc..
● How to select a item
[Example setting] Occupied point in the data collection mode.

The arrow indicates a item to enter.

PT#
→ST-01
ID
:
INS.HT:
0.000 m
INPUT SRCH REC OCNEZ

The arrow line moves up or down when the
[ ] key or [ ] key is pressed.

PT#
:ST-01
ID
→
INS.HT: 0.000 m
INPUT SRCH REC OCNEZ

[ ]
or
[ ]

PT#
:ST-01
ID
:
INS.HT→ 0.000 m
INPUT SRCH REC OCNEZ

● How to enter characters

1 Move the arrow to enter a item using the [
or [

]

PT#
→
ID
:
INS.HT: 0.000 m
INPUT SRCH REC OCNEZ

] key.

2 Press the [F1] (INPUT) key.
The arrow changes to the equal (=) .

3

The characters are displayed on the bottom
line.
Press the [ ] or [ ] key to select a page.

PT#
=
ID
:
INS.HT: 0.000 m
1234 5678 90.- [ENT]
ABCD EFGH IJKL [ENT]
MNOP QRST UVWX [ENT]
YZ+#[SPC][CLR][ENT]
[F1]

[F2]

[F3]

[F4]

4 Press the soft key to select a group of
PT#
=
ID
:
INS.HT: 0.000 m
(Q) (R) (S) (T)

characters.
Example: [F2](QRST) key is pressed.

[F1]

2-7

[F2]

[F3]

[F4]

2 PREPARATION FOR MEASUREMENT

5 Press soft key to select a character.

PT#
=T
ID
:
INS.HT:
0.000 m
MNOP QRST UVWX [ENT]

Example: [F4](T) key is pressed.

Select next character in the same manner.

6 Press [F4](ENT) key.
The arrow moves to next item.
Select next character in the same manner.

PT#
=TOPCON-1
ID
:
INS.HT :
0.000 m
MNOP QRST UVWX [ENT]
PT#
:TOPCON-1
ID
→
INS.HT :
0.000 m
INPUT SRCH REC OCNEZ

● To correct a character, move the cursor to correct character by pressing [
again.

] or [

] key and enter

2.7 Point Guide (Only for Point Guide type)
Fast and simple to use, the Point Guide feature is useful when doing stake out work. The LED’s for the
Point Guide System on the instrument telescope assist the rod person to get on-line. When using the
Point Guide System, the battery life will be approximately 8 hours at +20 °C (+68 °F).

Turning the Point Guide ON and Operation:
Press the [MENU] key to get the menu screen and press the
[MENU] key again. Point Guide LED’s will be turned ON.
Looking at the objective lens of the telescope, the right LED
will blink and the left LED will stay lit.

Instrument

The Point Guide should be used within a distance of 100
meters (328 feet). The quality of its results will depend on the
weather conditions and the user’s eyesight.
The goal of the rod person is to look at both LED’s on the
instrument and move the prism on-line until both LED’s are
equally bright.

Illuminate

● If the solid LED is brighter, move right.
● If the blinking LED is brighter, move left.

Blink

Prism

Once you have determined that both of the LED's are equally bright, you are on-line with the
instrument.

Turning the Point Guide OFF:
To turn OFF the Point Guide System, press the [MENU] key again in menu screen.
The point guide function can be available while executing Layout mode. See 8.2 “Executing a Layout”.

2-8

2 PREPARATION FOR MEASUREMENT

2.8 Laser Plummet ON/OFF (Only for Laser Plummet type)
Laser plummet option will help you to center the instrument easily onto the measurement point.
There are two ways to turn on/off of laser plummet option as follows.
● On/Off of laser plummet option by Soft Key in Tilt Correction
Operating procedure

Option

1 Press the [F4] key to get the function page 2.

[F4]

Display

V :
HR:

90°10'20"
120°30'40"

0SET

HOLD HSET

TILT
2 Press the [F1](TILT) key.
In case ON is already selected, the display shows
tilt correction value.

3 Press the [F4](L.PL) key.
By pressing the [F4](L.PL) key, the laser plummet
will be turned On / Off alternately.

REP

V%

P1↓
P2↓

[F1]

TILT SENSOR:[XY-ON]
X:-0°00'25"
Y: 0°00'20"
X-ON XY-ON OFF L.PL

[F4]

TILT SENSOR:[XY-ON]
X:-0°00'25"
Y: 0°00'20"
X-ON XY-ON OFF L.PL

● Symbol mark while the laser is emitting.
The following symbol mark will appear at the right side of the second line.

TILT SENSOR:[XY-ON]
X:-0°00'25"
Y: 0°00'20"
X-ON XY-ON OFF L.PL

Symbol mark

● On/Off of laser plummet option from MENU mode
Operating procedure

Operation

1 Press the [MENU] key.

Display

[MENU]

MENU
1/3
F1:DATA COLLECT
F2:LAYOUT
F3:MEMORY MGR. P↓

2 Press the [F4](P↓) key to get the menu on page 2.

[F4]

MENU
2/3
F1:PROGRAMS
F2:GRID FACTOR
F3:LASER PLUMMET P↓

3 Press the [F3] key.

[F3]

LASER PLUMMET
F1:ON
F2:OFF

[OFF]

[F1] or [F2]

LASER PLUMMET
F1:ON
F2:OFF

[ON]

4 Press the [F1] or [F2] key to turn on or off the laser
plummet option.

Laser Plummet auto-cut off function
The laser plummet will be turned off automatically after 1 to 99 minutes (Default :3 minutes). It is also
possible to stop the auto-cut off function.
Refer to Chapter 16 “SELECTING MODE” to change the time or to invalidate the function.

2-9

3 ANGLE MEASUREMENT

3

ANGLE MEASUREMENT
3.1 Measuring Horizontal Angle Right and Vertical Angle
Make sure the mode is in Angle measurement.
Operating procedure

Operation

1 Collimate the 1st target (A).

Collimate A

Display

V : 90°10'20"
HR: 120°30'40"
0SET HOLD HSET P1↓

2 Set horizontal angle of target A at 0° 00' 00".

H ANGLE 0 SET
> OK?

[F1]

Press the [F1](0 set) key and press the [F3](YES)
key.

--- --- [YES][NO]
[F3]

V :
HR:

90°10'20"
0°00'00"

0SET HOLD HSET P1↓
3 Collimate the 2nd target (B).

Collimate B

The required V/H angle to target B will be
displayed.

V : 98°36'20"
HR: 160°40'20"
0SET HOLD HSET P1↓

Reference : How to Collimate
1

2
3

Point the telescope toward the light. Turn the diopter ring and adjust the diopter so that the cross
hairs are clearly observed.
(Turn the diopter ring toward you first and then backward to focus.)
Aim the target at the peak of the triangle mark of the sighting collimator. Allow a certain space
between the sighting collimator and yourself for collimating.
Focus the target with the focusing knob.
*If parallax is created between the cross
hairs and the target when viewing
vertically or horizontally while looking
into the telescope, focusing is incorrect
ordiopter adjustment is poor. This
adversely affects precision in
measurement or survey Eliminate the
parallax by carefully focusing
and using diopter adjustment.

3-1

Focusing knob
Telescope eyepiece (Diopter ring)

∞
∞

∞
∞

3 ANGLE MEASUREMENT

3.2 Switching Horizontal Angle Right/Left
Make sure the mode is Angle measurement.
Operating procedure

Operation

1 Press the [F4](↓) key twice to get the function

[F4]
twice

on page 3.

Display

V : 90°10'20"
HR: 120°30'40"
0SET

2 Press the [F2](R/L) key.

[F2]

The mode Horizontal angle Right (HR)
switches to (HL) mode.

HOLD HSET

P1↓

TILT

REP

V%

P2↓

H-BZ

R/L CMPS

P3↓

V : 90°10'20"
HL: 239°29'20"
H-BZ

R/L CMPS

P3↓

3 Measure as HL mode.

● Every time pressing the [F2](R/L) key, HR/HL mode switches.

3.3 Measuring from the Required Horizontal Angle
3.3.1 Setting by Holding the Angle
Make sure the mode is angle measurement.
Operating procedure

Operation

1 Set the required horizontal angle, using

Display angle

Horizontal tangent screw

Display

V : 90°10'20"
HR: 130°40'20"
0SET HOLD HSET P1↓

2 Press the [F2](HOLD) key.

[F2]

3 Collimate the target.

H ANGLE HOLD
HR= 130°40'20"
> SET ?
--- --- [YES][NO]

Collimate

4 Press the [F3](YES) key to finish holding the

[F3]

horizontal angle.*1)
The display turns back to normal angle
measurement mode.

V : 90°10'20"
HR: 130°40'20"
0SET HOLD HSET P1↓

*1) To return to the previous mode, press the [F4](NO) key.

3-2

3 ANGLE MEASUREMENT

3.3.2 Setting a Horizontal Angle from the Keys
Make sure the mode is Angle measurement.
Operating procedure

Operation

1 Collimate the target.

Collimate

Display

V : 90°10'20"
HR: 170°30'20"
0SET HOLD HSET P1↓

2 Press the [F3](HSET) key.

[F3]

H ANGLE SET
HR:
INPUT --- --- ENTER
1234 5678 90.-[ENT]

3 Input the required horizontal angle by

[F1]
70.4020
[F4]

using keys. *1)
For example :70°40'20"

V :
HR:

90°10'20"
70°40'20"

0SET HOLD HSET P1↓

When completed, normal measuring from the
required Horizontal angle is possible.
*1) To enter Alphanumeric characters, see Section 2.6 “How to Enter Alphanumeric characters” .

3.4 Vertical Angle Percent Grade(%) Mode
Make sure the mode is Angle measurement.
Operating procedure

Operation

1 Press the [F4](↓) key to get the function on page 2.

[F4]

Display

V : 90°10'20"
HR: 170°30'20"
0SET HOLD HSET P1↓
TILT

2 Press the [F3](V%) key. *1)

[F3]

REP

V%

P2↓

V : -0.30
%
HR: 170°30'20"
TILT

REP

V%

P2↓

*1) Every time pressing the [F3](V%) key, the display mode switches.
● When the measurement is carried out over ±45° (±100%) from the horizontal, the display shows
.

3-3

3 ANGLE MEASUREMENT

3.5 Repetition Angle Measurement
● Repetition angle measurement can be done by horizontal angle right measurement mode.
Make sure the mode is Horizontal Angle Right measurement.
Operating procedure

Operation

1 Press the [F4](↓) key to get the function on page 2.

[F4]

Display

V : 90°10'20"
HR: 170°30'20"
0SET HOLD HSET P1↓
TILT

2 Press the [F2](REP)key.

[F2]

[F3]

4 Collimate the target A and press the [F1] (0SET)
key.

5 Press the [F3] (YES) key.

6 Collimate the target B using the horizontal clamp
and tangent screw.
Press the [F4](HOLD) key.

7 Recollimate target A using the horizontal clamp
and tangent screw, and press the [F3](REL)key.

8 Recollimate target B using the horizontal clamp
and tangent screw, and press the [F4](HOLD) key.

9 Repeat 7 to 8 to measure the desired number of
repetitions.

Collimate A
[F1]

V%

P2↓

REPETITION ANGLE
> OK?
---

3 Press the [F3](YES) key.

REP

---

[YES][NO]

REP-ANGLE COUNT[ 0]
Ht:
0°00'00"
Hm:
0SET V/H REL HOLD
REPETITION ANGLE
INITIALIZE
> OK?
--- --- [YES][NO]

[F3]

REP-ANGLE COUNT[ 0]
Ht:
0°00'00"
Hm:
0SET V/H REL HOLD

Collimate B
[F4]

REP-ANGLE COUNT[ 1]
Ht:
45°10'00"
Hm:
45°10'00"
0SET V/H REL HOLD

Collimate A
[F3]

REP-ANGLE COUNT[ 1]
Ht:
45°10'00"
Hm:
45°10'00"
0SET V/H REL HOLD

Collimate B
[F4]

REP-ANGLE COUNT[ 2]
Ht:
90°20'00"
Hm:
45°10'00"
0SET V/H REL HOLD
REP-ANGLE COUNT[ 4]
Ht: 180°40'00"
Hm:
45°10'00"
0SET V/H REL HOLD
[Example] 4 measurement

3-4

3 ANGLE MEASUREMENT

10 To return to the normal angle mode, press the

[ESC]
or
[F2]

[F2](V/H) key or [ESC] key.

11 Press the [F3](YES) key.

[F3]

REPETITION ANGLE
Exit
> OK?
--- --- [YES][NO]
V : 90°10'20"
HR: 170°30'20"
0SET HOLD HSET P1↓

● Horizontal angle can be accumulated up to
(3600°00'00" – minimum reading) (horizontal angle right).
In case of 5 second reading, horizontal angle can be accumulated up to +3599°59'55".
● Error will be displayed when the results differ from first measurement by more than ±30".

3.6 Buzzer Sounding for Horizontal Angle 90° Increments
When the horizontal angle falls in the range of less than ± 1° of 0°, 90°, 180° or 270°, the buzzer
sounds. Buzzer stops only when the horizontal angle is adjusted to 0°00’00”, 90°00’00” , 180°00’00” or
270°00’00”.
This setting is not memorized after powering off. Refer to 16 “SELECTING MODE” to set the initial
setting (memorized after powering off).
Make sure the mode is Angle measurement.
Operating procedure

Operation

1 Press the [F4](↓) key twice to get the function

[F4]
twice

on page 3.

2 Press the [F1](H-BZ) key.

[F1]

The data previously set is shown.

Display

V : 90°10'20"
HR: 170°30'20"
0SET

HOLD

H-BZ

R/L

HSET P1↓
CMPS

P3↓

H-ANGLE BUZZER [OFF]

[ON] [OFF] --- ENTER
3 Press the [F1](ON) key or [F2](OFF) key to select
the buzzer ON/OFF.

[F1] or [F2]

H-ANGLE BUZZER [ON]

[ON] [OFF] --- ENTER
4 Press the [F4](ENTER) key.

[F4]

V : 90°10'20"
HR: 170°30'20"
0SET HOLD HSET P1↓

3-5

3 ANGLE MEASUREMENT

3.7 Compasses ( vertical angle)
Vertical angle is displayed as shown below.
+90°

0°

0°

-90°

Operating procedure

Operation

1 Press the [F4](↓) key twice to get the function

[F4]
twice

on page 3.

Display

V : 98°10'20"
HR: 170°30'20"
0SET HOLD HSET P1↓
H-BZ R/L

2 Press the [F3](CMPS) key. *1)

[F3]

V : - 8°10'20"
HR: 170°30'20"
H-BZ R/L

*1) Every time pressing the [F3](CMPS) key, the display mode switches.

3-6

CMPS P3↓

CMPS P3↓

4 DISTANCE MEASUREMENT

4

DISTANCE MEASUREMENT
Note: Those distance shorter than 2.5m will not be displayed in Non-prism mode.

● Prism mode and Non-prism mode
In GPT-2000 series, the distance measurement will be done using invisible pulse laser beam emitted
from pulse laser diode. You can select measurement mode between Prism mode which collimating a
prism and Non-prism mode that is collimating a target object except prism.
● Non-prism mode enables all distance measurements such Distance measurement, Coordinate
measurement, Offset measurement and Layout.
● To switch over Prism mode to Non-prism mode or contrary, press the [NP/P] soft key in each
measurement display. [NP] of Non-prism mode indicator will be shown at the right corner of the
display in Non-prism mode measurement.
Changing mode shall be done before measurement.
Example

Distance measurement mode

HR: 120°30'40"
N
HD*
65.432 m
P
VD:
12.345 m
MEAS MODE NP/P P1↓

Coordinate measurement mode

Non-prism
mode
indicator

N: 120.456 m
E:
34.567 m
Z:
12.345 m
MEAS MODE NP/P

N
P

P1↓

To change the mode, press the [NP/P] soft key in each measurement.
● It is possible to set Non-prism mode for distance measurement during the power on time. Refer to
16.SELECTING MODE to set the option.
● If happened collimating the near distance prism in Non-prism mode, measurement will not be done
because of too much light.

4.1 Setting of the Atmospheric Correction
When setting the atmospheric correction, obtain the correction value by measuring the temperature
and pressure. Refer to Section 12.2 “Setting of Atmospheric Correction Value”.

4.2 Setting of the Correction for Prism Constant / Non-prism Constant
Topcon’s prism constant value is 0. Set correction for prism at 0. If the prism is of another manufacture,
the appropriate constant shall be set beforehand. Refer to Chapter 11 “SETTING THE PRISM / NONPRISM CONSTANT VALUE”. The setting value is kept in the memory even after power is off.
Note: Confirm that Non-prism correction value is set at zero before measurement target such
as a wall in Non-prism mode.

4-1

4 DISTANCE MEASUREMENT

4.3 Distance Measurement (Continuous Measurement)
Make sure the mode displays angle measurement.
Operating procedure

Operation

1 Collimate the center of prism.

Collimate P

Display

V : 90°10'20"
HR: 120°30'40"
0SET HOLD HSET P1↓

2 Press the [

] key.
Distance measurement starts. *1),2)

[

]

The measured distances are shown. *3)~*5)

HR: 120°30'40"
HD*[r]
<< m
VD:
m
MEAS MODE NP/P P1↓
HR: 120°30'40"
HD*
123.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓

● Pressing the [
] key again, the display
changes to horizontal (HR) and vertical (V)angle
and slope distance(SD). *6)

[

]

V : 90°10'20"
HR: 120°30'40"
SD*
131.678 m
MEAS MODE NP/P P1↓

*1) When EDM is working, the "✻ " mark appears in the display.
*2) To change mode from Fine to Coarse or Tracking, refer to section 4.5 “Fine Mode/Tracking Mode/
Coarse Mode”.
To set the distance measurement on when the instrument is powered on, refer to Chapter 16
“SELECTING MODE”.
*3) The distance unit indicator "m" (for meter) , "f" (for feet or feet inch) appears and disappears alternatively
with buzzer sounds at every renewal of distance data.
*4) Measurement may repeat automatically in the instrument if the result is affected by shimmer etc..
*5) To return to the normal measuring angle mode from a distance measuring mode, press the [ANG] key.
*6) It is possible to choose the display order (HR, HD, VD) or (V, HR, SD) for initial measuring distance
mode. Refer to Chapter 16 “SELECTING MODE”.

4-2

4 DISTANCE MEASUREMENT

4.4 Distance Measurement (N-time Measurement/Single Measurement)
When the number of times measurement is preset, the GPT-2000 series measures the distance the set
number of times. The average distance will be displayed.
When presetting the number of times as 1, it does not display the average distance, because of single
measurement. Single measurement is set at the factory.
Make sure the mode displays angle measurement.
Operating procedure

Operation

1 Collimate the center of prism.

Display

V :
HR:

90°10'20"
120°30'40"

0SET HOLD HSET
2 Press the [

] key.
Continuous measuring starts.*1)

[

3 Press [F1](MEAS) key while continuous

]

[F1]

measuring is exceeding. *2)
The average value is displayed and "*" mark
disappears.
● While EDM is working, press [F1](MEAS) key
again, the mode will be changed to continuous
measuring mode.

P1↓

HR: 120°30'40"
HD*[r]
<< m
VD:
m
MEAS MODE NP/P P1↓
HR: 120°30'40"
HD*[n]
<< m
VD:
m
MEAS MODE NP/P P1↓
HR: 120°30'40"
HD:
123.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓

*1) It is possible to set the measurement mode for N-times measurement mode or continuous
measurement mode when the power is turned on. Refer to Chapter 16 “SELECTING MODE”.
*2) For setting the number of times (N-times) in the measurement, refer to Chapter 16 “SELECTING
MODE”.

4-3

4 DISTANCE MEASUREMENT
● Choose meter /feet / feet+inch unit by soft key
It is possible to change the unit for distance measurement mode by soft key.
This setting is not memorized after power off. Refer to 16 “SELECTING MODE” to set at the initial
setting (memorized after power off).
Operating procedure

Operation

1 Press the [F4](P1↓) key twice to get the function
on page 3.

2 Every time pressing the [F2](m/f/i) key, the display
unit will be changed.
● Every time pressing the [F2](m/f/i) key, the unit
mode switches.

[F4]

[F2]

Display

HR: 120°30'40"
HD*
2.000 m
VD:
3.000 m
MEAS MODE NP/P

P1↓

OFSET S.O

S/A

P2↓

--- m/f/i ---

P3↓

HR: 120°30'40"
HD*
6.560 f
VD:
9.845 f
--- m/f/i ---

P3↓

4.5 Fine Mode/Tracking Mode/Coarse Mode
This setting is not memorized after power is off. Refer to Chapter 16”SELECTING MODE” to set at the
initial setting (memorized after power is off).
•Fine Mode
: This is a normal distance measuring mode.
The unit to be displayed: 0.2mm or 1mm. (0.001ft or 0.005ft)
Measurement time
0.2mm mode: approx. 3.0 sec.
1mm mode: approx. 1.2 sec.
•Tracking Mode : This mode measures in shorter time than in fine mode.
It is very useful when tailing the moving object or carrying out stake-out work.
The unit to be displayed: 10mm
Measuring time: approx. 0.3 sec.
•Coarse Mode : This mode measures in shorter time than in fine mode.
The unit to be displayed: 10mm or 1mm
Measuring time: approx. 0.5 sec.
Operating procedure

Operation

Display

HR: 120°30'40"
HD*
123.456m
VD:
5.678m
MEAS MODE NP/P
1 Press the [F2](MODE) key from the distance

[F2]

measuring mode.*1)
The initial character (F/T/C) of set mode is
displayed . (F:Fine, T:Tracking, C:Coarse)

2 Press the [F1](FINE) key, [F2](TRACK) key, or

[F1]~[F3]

[F3](COARSE) key.

*1) To cancel the setting, press the [ESC] key.

4-4

P1↓

HR: 120°30'40"
HD*
123.456m
VD:
5.678m
FINE TRACK COARSE F
HR: 120°30'40"
HD*
123.456m
VD:
5.678m
MEAS MODE NP/P

P1↓

4 DISTANCE MEASUREMENT

4.6 Stake Out (S.O)
The difference between the measured distance and the input stake out distance is displayed.
Measured distance — Stake out distance = Displayed value
● In stake out operation, you can select either horizontal distance (HD), relative elevation (VD) and
slope distance (SD)
Operating procedure

1 Press the [F4](↓) key in the distance measuring
mode to get the function on page 2.

Operation

Display

[F4]

HR: 120°30'40"
HD*
123.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓
OFSET S.O

2 Press the [F2](S.O) key.

[F2]

The data previously set is shown.

[F3] key.

[F1]

Example : Horizontal distance

P2↓

STAKE OUT
HD :
0.000 m
HD

3 Select the measuring mode by pressing the [F1] to

S/A

VD

SD

---

STAKE OUT
HD :
0.000 m
INPUT --- --- ENTER
1234 5678 90.-[ENT]

4 Enter the distance for stake out. *1)

[F1]
Enter data
[F4]

STAKE OUT
HD :
100.000 m
INPUT --- --- ENTER

5 Collimate the target (Prism).

Collimate P

Measuring starts.

The difference between the measured distance
and the stake out distance is displayed.

6 Move the target until the difference becomes 0m.

HR: 120°30'40"
dHD*[r]
<< m
VD:
m
MEAS MODE NP/P P1↓

HR: 120°30'40"
dHD*
23.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓

*1) Refer to section 2.6 “How to Enter Alphanumeric characters”.
● To return to normal distance measurement mode, stake out distance to "0" or turn the power off.

4-5

4 DISTANCE MEASUREMENT

4.7 Offset Measurement
There are four offset measurement modes in the Offset Measurement.
● Angle offset
● Distance offset
● Plane offset
● Column offset
To show the offset measurement menu, press the [OFSET] soft key from distance or coordinate
measurement mode.
Example:

Coordinate measurement

Distance measurement

N:
E:
Z:
MEAS

HR: 120°30'40"
HD:
123.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓
OFSET S.O

S/A

123.456
34.567
78.912
MODE NP/P

R.HT INSHT

P2↓

m
m
m
P1↓

OCC

OFSET m/f/i S/A

P2↓
P3↓

Press the [F1](OFSET) key.
Press the [F1](OFSET) key.
Offset Measurement Menu

OFFSET
1/2
F1:ANG.OFFSET
F2:DIST.OFFSET
F3:PLANE OFFSET P↓
[F4]

OFFSET
2/2
F1:COLUMN OFFSET
P↓
● Outputting the Measurement Data
The results of offset measurement can be output to external device.
Setting the function of the [ESC] key to (REC), the [F3] soft key which assigned (REC) will appear in
measured result display.
Refer to Chapter 16 “SELECTING MODE” to set this option.

OFFSET-MEASUREMENT
HR: 120°30'40"
SD:
123.456 m
NEXT --- REC ---

[F3]

● Distance measurement mode of the offset measurement
Offset measurement will be done by N-time fine measurement mode.
For setting measuring times refer to Chapter 16 “SELECTING MODE”.

4-6

4 DISTANCE MEASUREMENT

4.7.1 Angle Offset
This mode is useful when it is difficult to set up the prism directly, for example at the center of a tree.
Place the prism at the same horizontal distance from the instrument as that of point A0 to measure.
To measure the coordinates of the center position, operate the offset measurement after setting the
instrument height/prism height.
When measuring coordinates of ground point A1
:Set the instrument height/prism height.
When measuring coordinates of point A0 : Set
the instrument height only. (Set the prism height
to 0 ).

Prism P

Prism height
When sighting to A0, you can select one of two
ways. One is to fix vertical angle to the prism
position even updown the telescope position, and
the other is to gear vertical angle to the updown of
telescope movement. In case following the
vertical angle to the movement of telescope,
SD(Slope Distance) and VD(Vertical Distance)
will be changed according to the movement of
telescope.
To set this option, refer to Chapter 16
“SELECTING MODE”.

Instrument height

Occ. Point
● Set the instrument height/prism height before proceeding to the offset measurement mode.
● When setting the coordinate value for the occupied station, refer to Section 5.1 “Setting Coordinate
Values of Occupied Point”.
Operating procedure

Operation

Display

1 Press the [F4](P1↓) key from distance measuring

[F4]

HR: 120°30'40"
HD:
123.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓
OFSET S.O S/A P2↓

2 Press the [F1](OFSET) key.

[F1]

OFFSET
1/2
F1:ANG.OFFSET
F2:DIST.OFFSET
F3:PLANE OFFSET P1↓

3 Press the [F1](ANG. OFFSET) key.

[F1]

OFFSET-MEASUREMENT
HR: 120°30'40"
HD:
m
MEAS --- NP/P ---

mode to get the function on page 2.

4 Collimate prism P, and press the [F1](MEAS) key.

4-7

Collimate P
[F1]

OFFSET-MEASUREMENT
HR: 110°20'30"
HD* [n]
<< m
>Measuring...

4 DISTANCE MEASUREMENT
The horizontal distance from the instrument to the
prism will be measured.

5 Collimate point A0 using the horizontal motion

OFFSET-MEASUREMENT
HR:
110°20'30"
HD:
56.789 m
NEXT --- --- --Collimate
A0

clamp and horizontal tangent screw.

6 Show the relative elevation of point A0.

7 Show the slope distance of point A0.

[

]

[

]

[

]

● Each time pressing the [
] key, horizontal
distance, relative elevation and slope distance are
shown in sequence.

8 Show N coordinate of point A0 or A1.
● Each time pressing [
] key, N,E and Z
coordinate are shown in sequence.

OFFSET-MEASUREMENT
HR:
113°30'50"
HD:
56.789 m
NEXT --- --- --OFFSET-MEASUREMENT
HR:
113°20'30"
VD:
3.456 m
NEXT --- --- --OFFSET-MEASUREMENT
HR:
113°20'30"
SD:
56.894 m
NEXT --- --- --OFFSET-MEASUREMENT
HR:
113°20'30"
N :
-12.345 m
NEXT --- --- ---

● To return to procedure 4, press the [F1](NEXT) key.
● To return to the previous mode, press the [ESC] key.
● To select the Non-prism or Prism mode, press the [F3](NP/P) key after the step 4.

4-8

4 DISTANCE MEASUREMENT

4.7.2 Distance Offset Measurement
Measuring distance and coordinate of the center of a pond or a tree of which the radius is known.
Measuring the distance or coordinate till P0 point, input oHD value as an offset value and measure P1
point showing as following draw in distance offset measurement. The display shows distance or
coordinate value until P0 point.
P1

P0

P1

oHD < 0

oHD >0

In case the measuring point of (P1) is front side than that of requiring
point of (P0), the offset value shall be plus, and if it is rear side, the
offset value shall be minus.

Occ. Point
● When setting the coordinate value for the occupied station, refer to Section 5.1 “Setting Coordinate
Values of Occupied Point”.
Operating procedure

Operation

Display

1 Press the [F4](P1↓) key from distance measuring

[F4]

HR: 120°30'40"
HD:
123.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓
OFSET S.O
S/A P2↓

2 Press the [F1](OFSET) key.

[F1]

OFFSET
1/2
F1:ANG.OFFSET
F2:DIST.OFFSET
F3:PLANE OFFSET P↓

3 Press the [F2](DIST. OFFSET) key.

[F2]

DISTANCE OFFSET
INPUT FORWARD HD
oHD:
m
INPUT --- --- ENTER

mode to get the function on page 2.

4 Press the [F1](INPUT) key and enter a offset

[F1]
Offset
value
[F4]

value, and press the [F4](ENTER) key.

5 Collimate prism P1, and press the [F1](MEAS)

Collimate
P1
[F1]

key.
Measuring will start.

4-9

DISTANCE OFFSET
HR: 80°30'40"
HD:
m
MEAS --- NP/P --DISTANCE OFFSET
HR: 80°30'40"
HD* [n]
<< m
>Measuring...

4 DISTANCE MEASUREMENT
After measuring, the result added offset value will
be shown.

6 Show the relative elevation of point P0.
● Each time pressing the [
] key, horizontal
distance, relative elevation and slope distance are
shown in sequence.

DISTANCE OFFSET
HR:
80°30'40"
HD*
10.000 m
NEXT --- --- --[

]

DISTANCE OFFSET
HR:
80°30'40"
VD:
11.789 m
NEXT --- --- --DISTANCE OFFSET
HR:
80°30'40"
SD:
11.789 m
NEXT --- --- ---

● Show coordinate of point P0.
[

]

N :
E :
Z :
NEXT

12.345
23.345
1.345
--- ---

● To return to procedure 4, press [F1](NEXT) key.
● To return to the previous mode, press [ESC] key.
● To select the Non-prism or Prism mode, press the [F3](NP/P) key after the step 4.

4-10

m
m
m
---

4 DISTANCE MEASUREMENT

4.7.3 Plane Offset Measurement
Measuring will be taken for the place where direct measuring can not be done, for example distance or
coordinate measuring for a edge of a plane.
Three random prism points (P1, P2, P3) on a plane will be measured at first in the plane offset
measurement to determine the measured plane. Collimate the measuring target point (P0) then the
instrument calculates and displays coordinate and distance value of cross point between collimation
axis and of the plane.

P

Edge
P

P2

P3

Target heights of P1 to P3 is set to zero automatically.

● When setting the coordinate value for the occupied station, refer to Section 5.1 “Setting Coordinate
Values of Occupied Point”.
Example: Non-prism measurement
Operating procedure

Operation

Display

1 Press the [F4](P1↓) key from distance measuring

[F4]

HR: 120°30'40"
HD:
123.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓
OFSET S.O
S/A P2↓

2 Press the [F1](OFSET) key.

[F1]

OFFSET
1/2
F1:ANG.OFFSET
F2:DIST.OFFSET
F3:PLANE OFFSET P↓

3 Press the [F3](PLANE OFFSET) key.

[F3]

PLANE
N001#:
SD:
MEAS ---

mode to get the function on page 2.

4 Press the [F3](NP/P) key to change to the non-

[F3]

prism mode.

5 Collimate first point P1, and press the [F1](MEAS)
key.
N-time measuring will start.
After measuring, the display will show the second
point measurement.

4-11

Collimate
P1
[F1]

PLANE
N001#:
SD:
MEAS ---

m
NP/P --N
P

m
NP/P ---

PLANE
N001#:
SD* [n]
<< m
>Measuring...

N
P

4 DISTANCE MEASUREMENT

6 Measure the second and third points in the same
way.

Collimate
P2
[F1]

PLANE
N002#:
SD:
MEAS ---

m
NP/P ---

Collimate
P3
[F1]

PLANE
N003#:
SD:
MEAS ---

m
NP/P ---

The instrument calculates and displays coordinate
and distance value of cross point between
collimation axis and of the plane. *1),2)

7 Collimate the edge (P0) of the plane. *3) ,4)

Collimate
P0

8 To show the slope distance (SD), press the [

]

key.
● Each time pressing the [
] key, horizontal
distance, relative elevation and slope distance are
shown in sequence.

N
P

N
P

HR:
HD:
VD:
EXIT

80°30'40"
54.321 m
10.000 m

N

HR:
HD:
VD:
EXIT

75°30'40"
54.600 m
-0.487 m

N

V :
HR:
SD:
EXIT

90°30'40"
75°30'40"
56.602 m

N

P

P

P

● To show coordinate of point P0, press the [
]
key.
9 To escape the measuring, press the [F1](EXIT)
key. The display returns to the previous mode.
*1) In case the calculation of plane was not successful by the measured three points, error displays. Start
measuring over again from the first point.
*2) Data display is the mode beforehand of offset measurement mode.
*3) Error will be displayed when collimated to the direction which does not cross with the determined plane.
*4) The point height of the target point P0 is set to zero automatically

4-12

4 DISTANCE MEASUREMENT

4.7.4 Column Offset Measurement
If it is possible to measure circumscription point (P1) of column directly, the distance to the center of the
column (P0), coordinate and direction angle can be calculated by measured circumscription points (P2)
and (P3).
The direction angle of the center of the column is 1/2 of total direction angle of circumscription points
(P2) and (P3).

P

P2

P3

P

● When setting the coordinate value for the occupied station, refer to Section 5.1 “Setting Coordinate
Values of Occupied Point”.
Example: Non-prism measurement
Operating procedure

Operation

Display

1 Press the [F4](P1↓) key from distance measuring

[F4]

HR: 120°30'40"
HD:
123.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓
OFSET S.O
S/A P2↓

2 Press the [F1](OFSET) key.

[F1]

OFFSET
1/2
F1:ANG.OFFSET
F2:DIST.OFFSET
F3:PLANE OFFSET P↓

3 Press the [F4](P↓) key.

[F4]

OFFSET
2/2
F1:COLUMN OFFSET

mode to get the function on page 2.

P↓
4 Press the [F1](COLUMN OFFSET) key.

[F1]

COLUMN OFFSET
Center
HD:
m
MEAS --- NP/P ---

5 Press the [F3](NP/P) key to change to the non-

[F3]

COLUMN OFFSET
N
Center
P
HD:
m
MEAS --- NP/P ---

prism mode.

4-13

4 DISTANCE MEASUREMENT

6 Collimate the center of the column (P1) and press
the [F1](MEAS) key.
N-time measuring will start.
After the measurement, angle measuring display
of the left side (P2) will be shown.

7 Collimate the left side of the column (P2) and
press the [F4](SET) key.
After the measurement, angle measuring display
of the right side (P3) will be shown.

8 Collimate the right side of the column (P3) and
press the [F4](SET) key.

Collimate
P1
[F1]

COLUMN OFFSET
Center
HD* [n]
<< m
>Measuring...

Collimate
P2
[F4]

COLUMN OFFSET
N
Left
P
HR: 120°30'40"
--- --- --- SET

Collimate
P3
[F4]

COLUMN OFFSET
N
Right
P
HR: 180°30'40"
--- --- --- SET

The distance between the instrument and center
of the column (P0) will be calculated.

[

] key.

Each time pressing the [
] key, horizontal
distance, relative elevation and slope distance are
shown in sequence.
● To show coordinate of point P0, press the [
]
key.
10 To escape the measuring, press the [ESC] key.
The display returns to the previous mode.

4-14

P

COLUMN OFFSET
HR: 150°30'40" NP
HD:
43.321 m
NEXT --- --- ---

9 To show the relative elevation (VD), press the
[

N

]

COLUMN OFFSET
HR: 150°30'40" NP
VD:
2.321 m
NEXT --- --- ---

5 COORDINATE MEASUREMENT

5

COORDINATE MEASUREMENT
5.1 Setting Coordinate Values of Occupied Point
Set the coordinates of the instrument (occupied point) according to coordinate origin, and the
instrument automatically converts and displays the unknown point (prism point) coordinates following
the origin.
It is possible to retain the coordinates of the occupied point after turning the power off.
Refer to Chapter 16 “SELECTING MODE”.
Prism (n,e,z)

N

z
n

Inst.PointC
Origin(0,0,0)

E

e
Operating procedure

Operation

1 Press the [F4](↓) key from the coordinate
measurement mode to get the function on page 2.

2 Press the [F3](OCC) key.

3 Enter N coordinate value. *1)

Display

[F4]

N:
123.456
E:
34.567
Z:
78.912
MEAS MODE NP/P
R.HT INSHT OCC

[F3]

N→
E:
Z:
INPUT --1234 5678

[F1]
Enter data
[F4]

4 Enter E and Z coordinate values in the same

m
m
m
P1↓
P2↓

0.000 m
0.000 m
0.000 m
--- ENTER
90. –[ENT]

N:
-72.000 m
E→
0.000 m
Z:
0.000 m
INPUT --- --- ENTER
N:
51.456 m
E:
34.567 m
Z:
78.912 m
MEAS MODE NP/P P1↓

manner.
After entering the values, the display returns
coordinate measuring display.
*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
● Input range –99999999.9990 < N,E,Z < +99999999.9990 m
–99999999.999 < N,E,Z < +99999999.999 ft.
–99999999.11.7 < N,E,Z < +99999999.11.7 ft.+inch

5-1

5 COORDINATE MEASUREMENT

5.2 Setting Height of the Instrument
It is possible to retain the height of instrument after turning the power off. Refer to Chapter 16
“SELECTING MODE”.
Operating procedure

Operation

1 Press the [F4](↓) key from the coordinate
measurement mode to get the function on page 2.

2 Press the [F2](INSHT) key.
The current value is displayed.

3 Enter the instrument height. *1)

Display

[F4]

N:
123.456
E:
34.567
Z:
78.912
MEAS MODE NP/P
R.HT INSHT OCC

[F2]

INSTRUMENT HEIGHT
INPUT
INS.HT: 0.000 m
INPUT ––– ––– ENTER
1234 5678 90. –[ENT]

[F1]
Enter Inst.HT
[F4]

N:
E:
Z:
MEAS

123.456
34.567
78.912
MODE NP/P

m
m
m
P1↓
P2↓

m
m
m
P1↓

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
● Input range –999.9999 < Instrument height < +999.9999 m
–999.999 < Instrument height < +999.999 ft.
–999.11.7 < Instrument height < +999.11.7 ft.+inch

5.3 Setting Height of Target (Prism Height)
This mode can be used to obtain Z coordinate values . It is possible to retain the height of target after
turning the power off. Refer to Chapter 16 “SELECTING MODE”.
Operating procedure

Operation

1 Press the [F4](↓) key from the coordinate
measurement mode to get the function on page 2.

2 Press the [F1](R.HT) key.
The current value is displayed.

3 Enter the prism height. *1)

[F4]

N:
123.456
E:
34.567
Z:
78.912
MEAS MODE NP/P
R.HT INSHT OCC

[F1]

REFLECTOR HEIGHT
INPUT
R.HT: 0.000 m
INPUT ––– ––– ENTER
1234 5678 90. –[ENT]

[F1]
Enter R. HT
[F4]

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
● Input range –999.9999 < Prism height < +999.9999 m
–999.999 < Prism height < +999.999 ft.
–999.11.7 < Prism height < +999.11.7 ft.+inch

5-2

Display

N:
E:
Z:
MEAS

123.456
34.567
78.912
MODE NP/P

m
m
m
P1↓
P2↓

m
m
m
P1↓

5 COORDINATE MEASUREMENT

5.4 Execution of Coordinate Measuring
Measure the coordinates by entering the instrument height and prism height, coordinates of unknown
point will be measured directly.
● When setting coordinate values of occupied point, see Section 5.1 “Setting Coordinate Values of
Occupied Point”
● When setting the instrument height and prism height, see Section 5.2 “Setting Height of the
Instrument” and 5.3 “Setting Height of Target (Prism Height)”.
● The coordinates of the unknown point are calculated as shown below and displayed:
Coordinates of occupied point
: (N0, E0,Z0)
Instrument height : INS.HT
Prism height
: R.HT
Vertical distance (Relative elevation) : z (VD)
Coordinates of the center of the prism,
originated from the center point of the instrument : (n,e,z)
Coordinates of unknown point : (N1,E1,Z1)
N1=N0+n
E1=E0+e
Z1=Z0+INS.HT+z - R.HT
Coordinates of the center of the prism, originated from the
center point of the instrument (n, e, z)
Center point of the instrument
(No, Eo, Zo+INS.HT)

R.HT
SD
z(VD)

Unknown point
(N1, E1, Z1)

INS.HT

Occupied point (No, Eo, Zo)
Origin (o, o, o)

HD

Operating procedure

Operation

Display

1 Set the direction angle of known point A. *1)

Set direction
angle

V : 90°10'20"
HR: 120°30'40"

2 Collimate target prism.

Collimate P

0SET

3 Press the [

] key.
Measuring starts.

[

]

HOLD

HSET P1↓

N*[r]
E:
Z:
MEAS MODE

<< m
m
m
NP/P P1↓

N*
E:
Z:
MEAS

The result will be shown.

123.456
34.567
78.912
MODE NP/P

m
m
m
P1↓

*1) Refer to Section 3.3 “Measuring from the Required Horizontal Angle”.
● In case the coordinate of instrument point is not entered, (0,0,0) will be used as the default for the
instrument point.
The instrument height will be calculated as 0 when the instrument height is not entered.
● The prism height will be calculated as 0 when the prism height is not set.

5-3

6 SPECIAL MODE (Menu Mode)

6

SPECIAL MODE (Menu Mode)
By pressing the [MENU] key, the instrument will be in MENU mode.
In this mode, special measuring , setting and adjustment are possible.
Normal measurement mode
[ESC]

[MENU]

MENU
1/3
F1:DATA COLLECT
[ESC]
F2:LAYOUT
F3:MEMORY MGR. P↓

[ESC] [F1]

"DATA COLLECTION MODE"
See Chapter 7 “DATA COLLECTION”.

[F2]
"LAYOUT MODE"

[F4]

See Chapter 8 “LAYOUT”.
[F3]

"MEMORY MANAGER MODE"
See Chapter 9 “MEMORY MANAGER
MODE”.
Programs

MENU
2/3
[ESC] F1:PROGRAMS
F2:GRID FACTOR
F3:ILLUMINATION P↓

[ESC]

[F1]

PROGRAMS
F1:REM
F2:MLM
F3:Z COORD.

1/2

P↓

Grid factor

[F4]

GRID FACTOR
=1.000000
[F2]

>MODIFY? [YES][NO]
Reticle illumination
[F3]

ILLUMINATION[ON:1]
F1:ON
F2:OFF
F3:LEVEL

Setting mode 1
[ESC]

MENU
3/3
F1:PARAMETERS 1
F2:CONTRAST ADJ.
P↓

[ESC]

[F1]

[F4]

PARAMETERS 1
1/2
F1:MINIMUM READING
F2:AUTO POWER OFF
F3:TILT
P↓
Display contrast adjustment

[F2]

CONTRAST ADJUSTMENT
LEVEL:4
↓

6-1

↑

--- ENTER

6 SPECIAL MODE (Menu Mode)

6.1 Application Measurement (PROGRAMS)
6.1.1 Remote Elevation measurement (REM)
To obtain elevation of the point at which setting the target prism is not possible, place the prism at any
point on the vertical line from the target then carry out REM procedure as follows.

Target K

Prism

Prism height

Instrument
1) With prism height (h) input (Example :h=1.5m)
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)
key to get the menu on page 2.

2 Press the [F1] key.

[MENU]
[F4]

[F1]

Display

MENU
2/3
F1:PROGRAMS
F2:GRID FACTOR
F3:ILLUMINATION P↓
PROGRAMS
F1:REM
F2:MLM
F3:Z COORD.

1/2

P↓

3 Press the [F1](REM) key.

[F1]

REM
F1:INPUT R.HT
F2:NO R.HT

4 Press the [F1] key.

[F1]

REM-1

R.HT :
0.000 m
INPUT ––– ––– ENTER
1234 5678 90. –[ENT]

5 Enter prism height. *1)

[F1]
Enter R.HT
[F4]

6 Collimate prism.

Collimate P

7 Press the [F1](MEAS) key.

[F1]

Measuring starts.

6-2

REM-1

HD:
MEAS –––

NP/P

m
–––

REM-1

HD*[n]
<< m
>Measuring...

6 SPECIAL MODE (Menu Mode)
Horizontal distance (HD) between the instrument
and prism will be shown.

REM-1

HD* 123.456 m
>Measuring...

REM-1
VD: 1.500 m
–––
8 Collimate target K.

Collimate K

Vertical distance (VD) will be shown. *2),3)

R.HT HD

–––

REM-1
VD: 10.456 m
–––

R.HT HD

–––

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
*2) To return to procedure 5, press the [F2](R.HT) key.
To return to procedure 6, press the [F3](HD) key.
*3) To return to PROGRAMS Menu, press the [ESC] key.
2) Without prism height input
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)
key to get the menu on page 2.

2 Press the [F1] key.

[MENU]
[F4]

[F1]

Display

MENU
2/3
F1:PROGRAMS
F2:GRID FACTOR
F3:ILLUMINATION P↓
PROGRAMS
F1:REM
F2:MLM
F3:Z COORD.

3 Press the [F1](REM) key.

[F1]

REM
F1:INPUT R.HT
F2:NO R.HT

4 Press the [F2] key.

[F2]

REM-2

HD:
MEAS –––

5 Collimate prism.

1/2

m
NP/P –––

Collimate P

6 Press the [F1](MEAS) key.

[F1]

Measuring starts.

Horizontal distance (HD) between the instrument
and prism will be shown.

6-3

P↓

REM-2

HD* [n]
<< m
>Measuring...
REM-2

HD* 123.456 m
>Measuring...

6 SPECIAL MODE (Menu Mode)
The prism position will be decided.

REM-2

V : 60°45'50"
––– ––– –––

7 Collimate ground point G.

Collimate G

8 Press the [F4](SET) key.

[F4]

The position of point G will be decided. *1)

REM-2

V : 123°45'50"
––– ––– –––
SET
REM-2
VD:
0.000 m
–––

9 Collimate target K.

Collimate K

Vertical distance (VD) will be shown. *2)

6-4

V

HD

–––

REM-2
VD: 10.456 m
–––

*1) To return to procedure 5, press the [F3](HD) key.
To return to procedure 7, press the [F2](V) key.
*2) To return to PROGRAMS Menu, press the [ESC] key.

SET

V

HD

–––

6 SPECIAL MODE (Menu Mode)

6.1.2 Missing Line Measurement (MLM)
Measurement for horizontal distance (dHD), slope distance (dSD), elevation (dVD) and horizontal
bearing (HR) between two target prisms.
It is possible to enter the coordinate value directly or calculate from coordinate data file.
MLM mode has two modes.
1: MLM-1 (A-B, A-C) :Measurement is A-B, A-C, A-D,......
2: MLM-2 (A-B, B-C) :Measurement is A-B, B-C, C-D,......
Prism A

Prism B
Instrument

Prism C

Instrument
Prism A
Prism B
● It is necessary to set the direction angle of the instrument.
[Example] MLM-1 (A-B, A-C)
● Procedure of MLM-2 (A-B, B-C) mode is completely same as MLM-1 mode
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)
key to get the menu on page 2.

2 Press the [F1] key.

[MENU]
[F4]

[F1]

Display

MENU
2/3
F1:PROGRAMS
F2:GRID FACTOR
F3:ILLUMINATION P↓
PROGRAMS
F1:REM
F2:MLM
F3:Z COORD.

3 Press the [F2](MLM) key.

[F2]

MLM
F1:USE FILE
F2:DON’T USE

4 Press the [F1] or [F2] key to select using

[F2]

GRID FACTOR
F1:USE G.F.
F2:DON’T USE

coordinate file.
[Example:F2 : DON’T USE]

6-5

1/2

P↓

6 SPECIAL MODE (Menu Mode)

5 Press the [F1] or [F2] key to select using

[F2]

MLM
F1:MLM-1(A-B, A-C)
F2:MLM-2(A-B, B-C)

[F1]

MLM-1(A-B, A-C)

HD:
m
MEAS R.HT NEZ NP/P

Collimate A
[F1]

MLM-1(A-B, A-C)

HD*[n]
<< m
MEAS R.HT NEZ NP/P

GRID FACTOR.
[Example:F2 : DON’T USE]

6 Press the [F1] key.

7 Collimate prism A, and press the [F1](MEAS) key.
Horizontal distance (HD) between the instrument
and prism A will be shown.

MLM-1(A-B, A-C)

HD* 123.456 m
MEAS R.HT NEZ NP/P
The prism position will be decided.

MLM-1(A-B, A-C)

HD:
m
MEAS R.HT NEZ NP/P

8 Collimate prism B and press the [F1](MEAS) key.
Horizontal distance (HD) between the instrument
and prism B will be shown.

Collimate B
[F1]

MLM-1(A-B, A-C)

HD*[n]
<< m
MEAS R.HT NEZ NP/P
MLM-1(A-B, A-C)

HD* 345.678 m
MEAS R.HT NEZ NP/P

The horizontal distance (dHD) and relative
elevation (dVD) between prism A and B.

9 To show slope distance (dSD) , press [

MLM-1(A-B, A-C)
dHD : 123.456 m
dVD : 12.345 m
––– –––
HD
–––
] key.

10 To measure the distance between points A and C,
press the [F3](HD). *1)

11 Collimate point C (Prism C) and press the
[F1](MEAS) key.
Horizontal distance (HD) between the instrument
and prism C will be shown.

6-6

[

]

[F3]

Collimate
prism C
[F1]

MLM-1(A-B, A-C)
dSD : 234.567 m
HR : 12°34'40"
––– –––
HD
–––
MLM-1(A-B, A-C)

HD:
m
MEAS R.HT NEZ NP/P

6 SPECIAL MODE (Menu Mode)
The horizontal distance (dHD) and relative
elevation (dVD) between prism A and C.

MLM-1(A-B, A-C)
dHD : 234.567 m
dVD :
23.456 m
––– –––
HD
–––

12 To measure the distance between points A and D,
repeat procedure 12 to14. *1)
*1) To return to previous mode, press the [ESC] key.

● How to use coordinate data
It is possible to input coordinate value directly or calculate from coordinate data file
Operating procedure

Operation

Display

To use coordinate data file, select “USE FILE”
in step 4.
After procedure 6.

MLM-1(A-B, A-C)

HD:
m
MEAS R.HT NEZ NP/P

1 Press the [F3](NEZ) key.

[F3]

Direct key input display will be shown.

2 Press the [F3](PT#) key to use coordinate data
file.
Point number input display will be shown.
Pressing the [F3](HD) key, the display will return
to procedure 6.
After selecting coordinate input mode by pressing
the [F3](NEZ or PT# or HD) key, press the
[F1](INPUT) key and enter the data.

6-7

[F3]

N>
0.000
E:
0.000
Z:
0.000
INPUT ––– PT#

m
m
m
ENTER

MLM-1(A-B,A-C)
PT#:__________
INPUT LIST

HD ENTER

6 SPECIAL MODE (Menu Mode)

6.1.3 Setting Z Coordinate of Occupied Point
Occupied point coordinate data and known point actual measuring data are utilized, z coordinate of
occupied point is calculated and reset again.
Known point data and coordinate data can use the coordinate data file.

1) Setting occupied coordinate
[Example setting] Using coordinate data file.
Operating procedure

Operation

1 After pressing [MENU] key, press [F4](P↓) key to
get the menu on page 2.

2 Press the [F1] key.

[MENU]
[F4]

[F1]

Display

MENU
2/3
F1:PROGRAMS
F2:GRID FACTOR
F3:ILLUMINATION P↓
PROGRAMS
F1:REM
F2:MLM
F3:Z COORD.

3 Press the [F3](Z COORD.) key.

[F3]

Z COORD.SETTING
F1:USE FILE
F2:DON’T USE

4 Press the [F1](USE FILE) key.

[F1]

SELECT A FILE
FN:_________

1/2

P↓

INPUT LIST ––– ENTER
5 Press the [F1](INPUT) key and enter the File

[F1]
Enter FN
[F4]

Name.

6 Press the [F1] key.

[F1]

Z COORD.SETTING
F1:OCC.PT INPUT
F2:REF.MEAS
OCC.PT
PT#:_________
INPUT LIST NEZ ENTER

7 Press the [F1](INPUT) key and enter the Point
number. Instrument height setting display will be
shown.

8 Press the [F1](INPUT) key and enter the height.
The display returns to Z coordinate menu.

[F1]
Enter PT#
[F4]

INSTRUMENT HEIGHT
INPUT
INS.HT: 0.000 m
INPUT ––– ––– ENTER

[F1]
Enter HT
[F4]

Z COORD.SETTING
F1:OCC.PT INPUT
F2:REF.MEAS

● For more information about data file, see Chapter 9 “MEMORY MANAGER MODE” .

6-8

6 SPECIAL MODE (Menu Mode)

2) Z Coordinate Calculation from Known Point Measuring Data
[Example setting] Using coordinate data file
Operating procedure

Operation

1 After pressing [MENU] key, press [F4](P↓) key to
get the menu on page 2.

2 Press the [F1] key.

[MENU]
[F4]

[F1]

Display

MENU
2/3
F1:PROGRAMS
F2:GRID FACTOR
F3:ILLUMINATION P↓
PROGRAMS
F1:REM
F2:MLM
F3:Z COORD.

3 Press the [F3](Z COORD.) key.

[F3]

Z COORD.SETTING
F1:USE FILE
F2:DON’T USE

4 Press the [F1](USE FILE) key.

[F1]

SELECT A FILE
FN:_________

1/2

P↓

INPUT LIST ––– ENTER
5 Press the [F1](INPUT) key and enter the File

[F1]
Enter FN
[F4]

Name.

6 Press the [F2] key.

[F2]

Z COORD.SETTING
F1:OCC.PT INPUT
F2:REF.MEAS
NOO1#
PT#:_________
INPUT LIST NEZ ENTER

7 Press the [F1](INPUT) key and enter the Point

[F1]
Enter PT#
[F4]

Number in coordinate data file.

8 Press the [F3](YES) key and enter the Point

N:
E:
Z:
>OK ?

4.356 m
16.283 m
1.553 m
[YES][NO]

[F3]

REFLECTOR HEIGHT
INPUT
R.HT:
0.000 m
INPUT ––– ––– ENTER

9 Press the [F1](INPUT) key and enter the height.

[F1]
Enter R. HT
[F4]

REFLECTOR HEIGHT
INPUT
R.HT:
0.000 m
MEAS ––– NP/P –––

10 Collimate a prism on the point and press the

Collimate P
[F1]

HR: 120°30'40"
HD*[n]
<< m
VD:
m
>Measuring...

Number in coordinate data file.

[F1](MEAS) key.
Measuring starts. *1)

6-9

6 SPECIAL MODE (Menu Mode)

HR: 120°30'40"
HD:
12.345 m
VD:
23.456 m
NEXT ––– ––– CALC
11 Press the [F4](CALC) key.*2)
Z : Z coordinate
dZ: Standard deviation

12 Press the [F4](SET) key. *3)
Z coordinate of the occupied point will be set.

[F4]

Z COORD. SETTING
Z :
1.234 m
dZ :
0.002 m
––– –––
BS SET

[F4]

BACKSIGHT
HR: 23°20'40"

Bascksight point measuring screen will be shown.

13 Press the [F3](YES) key.

>OK?
[F3]

Horizontal angle will be set.
The display returns to Programs 1/2 menu.

*1) Measurement is Fine N-times measurement mode.
*2) To measure other points, press the [F1](NEXT) key.
*3) Pressing the [F3] key, the display will be changed alternately.

6-10

[YES][NO]

PROGRAMS
F1:REM
F2:MLM
F3:Z COORD.

1/2

P↓

6 SPECIAL MODE (Menu Mode)

6.1.4 Area Calculation
This mode calculate the area of a closed figure.
There are two area calculation methods as follows.
1) Area Calculation from Coordinate data file
2) Area Calculation from Measured data
● Area is not calculated correctly if enclosed lines cross each other.
● It is impossible to calculate what a mix of coordinate file data and measured data.
● If the coordinate data file does not exist, the area calculation from measured data is done
automatically.
● The numbers of points used to calculate are not limited.

1) Area Calculation from Coordinate Data File
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)
key to get the menu on page 2/3.

2 Press the [F1] key.

[MENU]
[F4]

[F1]

3 Press the [F4](P↓) key to get the PROGRAMS

Display

MENU
2/3
F1:PROGRAMS
F2:GRID FACTOR
F3:ILLUMINATION P↓
PROGRAMS
F1:REM
F2:MLM
F3:Z COORD.

1/2

P↓

[F4]

PROGRAMS
2/2
F1:AREA
F2:POINT TO LINE
P↓

4 Press the [F1](AREA) key.

[F1]

AREA
F1:FILE DATA
F2:MEASUREMENT

5 Press the [F1](FILE DATA) key.

[F1]

SELECT A FILE
FN:_________

menu on page 2/2.

INPUT LIST ––– ENTER
6 Press the [F1](INPUT) key and enter the File
Name.
Initial display will be shown.

[F1]
Enter FN
[F4]

AREA

7 Press the [F4](NEXT) key. *1),2)

[F4]

AREA

The top of the file data (DATA-01) will be set and
the second point number will be shown.

8 Repeat pressing the [F4](NEXT) key to set

[F4]

required number of points.

6-11

0000
m.sq
NEXT# :DATA-01
PT# LIST UNIT NEXT
0001
m.sq
NEXT# :DATA-02
PT# LIST UNIT NEXT

6 SPECIAL MODE (Menu Mode)
When 3 or more points are set, the area
surrounded by the points is calculated and the
result will be shown.

AREA

0021
123.456 m.sq
NEXT# :DATA-22
PT# LIST UNIT NEXT

*1) To set specify point, press the [F1](PT#) key.
*2) To show the list of the coordinate data in the file, press the [F2](LIST) key.

2) Area Calculation from Measured Data
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)
key to get the menu on page 2/3.

2 Press the [F1] key.

[MENU]
[F4]

[F1]

3 Press the [F4](P↓) key to get the PROGRAMS

Display

MENU
2/3
F1:PROGRAMS
F2:GRID FACTOR
F3:ILLUMINATION P↓
PROGRAMS
F1:REM
F2:MLM
F3:Z COORD.

1/2

P↓

[F4]

PROGRAMS
2/2
F1:AREA
F2:POINT TO LINE
P↓

4 Press the [F1](AREA) key.

[F1]

AREA
F1:FILE DATA
F2:MEASUREMENT

5 Press the [F2](MEASUREMENT) key.

[F2]

AREA
F1:USE G.F.
F2:DON’T USE

6 Press the [F1] or [F2] key to select using GRID

[F2]

AREA

menu on page 2/2.

FACTOR.
[Example:F2 : DON’T USE]

MEAS
7 Collimate a prism and press the [F1](MEAS) key.
Measuring starts. *1)

Collimate P
[F1]

0000
m.sq
–––

N*[n]
<<< m
E:
m
Z:
m
>Measuring...
AREA

MEAS
8 Collimate next point and press the [F1](MEAS)

Collimate
[F1]

key.

6-12

UNIT NP/P

0001
m.sq
–––

UNIT NP/P

6 SPECIAL MODE (Menu Mode)
When 3 or more points are measured, the area
surrounded by the points is calculated and the
result will be shown.

AREA

MEAS

0003
234.567 m.sq
–––

UNIT NP/P

*1) Measurement is Fine N-times measurement mode.

● To change the display unit
It is possible to change the displayed area unit.
Operating procedure

Operation

Display

AREA

0003
100.000 m.sq

MEAS –––
1 Press the [F3](UNIT) key.

[F3]

AREA

UNIT

NP/P

0003
100.000 m.sq

m.sq ha ft.sq acre
2 Select a unit by pressing the [F1] to [F4] key.

[F2]

Example: [F2](ha) key.

AREA

0003
0.010 ha

MEAS –––
● m.sq : square meter

ha : hectare

ft.sq : square feet

6-13

acre : acre.

UNIT

NP/P

6 SPECIAL MODE (Menu Mode)

6.1.5 Point to Line Measurement
This mode is used to obtain the coordinate data with the origin point A(0,0,0) and the line AB as N
axis.
Place the 2 prisms at the points A and B on the line, and place the instrument at unknown point C. After
measuring the 2 prisms , the coordinate data and the direction angle of the instrument will be calculated
and restored.

P(n, e, z)

Prism P2

Prism P1
R.HT

Line

INS.HT

Instrument Point (Unknown point)

Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)
key to get the menu on page 2/3.

2 Press the [F1] key.

[MENU]
[F4]

[F1]

3 Press the [F4](P↓) key to get the PROGRAMS
menu on page 2/2.

4 Press the [F2] key.

5 Press the [F1](INPUT) key and enter instrument
height.

6 Press the [F1](INPUT) key and enter reflector

6-14

MENU
2/3
F1:PROGRAMS
F2:GRID FACTOR
F3:ILLUMINATION P↓
PROGRAMS
F1:REM
F2:MLM
F3:Z COORD.

1/2

P↓

[F4]

PROGRAMS
2/2
F1:AREA
F2:POINT TO LINE
P↓

[F2]

INSTRUMENT HEIGHT
INPUT
INS.HT:
0.000 m
INPUT ––– ––– ENTER

[F1]
Enter
INS.HT
[F4]

REFLECTOR HEIGHT
INPUT
R.HT:
0.000 m
INPUT ––– ––– ENTER

[F1]
Enter R.HT
[F4]

A(P1) height.

Display

POINT TO LINE
MEAS.P1
HD:
m
MEAS ––– NP/P –––

6 SPECIAL MODE (Menu Mode)

7 Collimate prism P1 (Origin) and press [F1](MEAS)

Collimate
P1
[F1]

key.
Measuring starts. *1)

Input display of reflector B(P2) height will be
shown.

<< m

REFLECTOR HEIGHT
INPUT
R.HT:
0.000 m
INPUT ––– ––– ENTER

8 Press [F1](INPUT) key and enter reflector B(P2)
height.

[F1]
Enter R. HT
[F4]

9 Collimate prism B (P2)(Origin) and press the

Collimate
P2
[F1]

[F1](MEAS) key.
Measuring starts. *1)

The coordinate data and the direction angle of the
instrument are calculated and restored.
The result (The distance between A and B) will be
displayed.
dHD: Horizontal distance
dVD:Vertical distance
dSD:Slope distance *2) ,3)
[F1]

11 Collimate a prism and press [F1](MEAS) key.

Collimate P
[F1]

Coordinate measurement starts. *4)
The result will be shown. *5)

POINT TO LINE
MEAS.P2
HD:
m
MEAS ––– NP/P –––
POINT TO LINE
MEAS.P2
HD*[n]
>Measuring...

N:
0.000 m
E:
0.000 m
Z:
0.000 m
MEAS R.HT NP/P –––
>Measuring...
N:
E:
Z:
MEAS R.HT

Measurement is Fine N-times measurement mode.
To show dSD, press [F4](P↓) key.
To show the new occupied data, press [F2](S.CO) key.
Measurement is Fine N-times measurement mode.
To return to previous mode, press the [ESC] key.

6-15

<< m

DIST. (P1-P2)
1/2
dHD:
10.000 m
dVD:
0.000 m
NEZ S.CO ––– P↓

10 Press [F1](NEZ) key to measure other points.

*1)
*2)
*3)
*4)
*5)

POINT TO LINE
MEAS.P1
HD*[n]
>Measuring...

3.456 m
5.432 m
0.000 m
NP/P –––

6 SPECIAL MODE (Menu Mode)

6.2 Setting the GRID FACTOR
GRID FACTOR can reset in this menu mode.
For more information, refer to Section 8.1.1”Setting the GRID FACTOR”
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)
key to get the menu on page 2.

[MENU]
[F4]

2 Press the [F2](GRID FACTOR) key.

[F2]

Display

MENU
2/3
F1:PROGRAMS
F2:GRID FACTOR
F3:ILLUMINATION P↓
GRID FACTOR
=0.998843
>MODIFY?

3 Press the [F3](YES) key.

[F3]

4 Press the [F1] (INPUT) key and enter Elevation.
*1)

Press the [F4](ENT) key.

5 Enter Scale Factor in the same way.

[F1]
Enter ELEV.
[F4]
[F1]
Enter Scale
[F4]

Grid Factor is displayed for 1 to 2 second and
display returns to menu.

[YES][NO]

GRID FACTOR
ELEV.→1000 m
SCALE:0.999000
INPUT ––– ––– ENTER
1234 5678 90. –[ENT]

GRID FACTOR
ELEV.:2000 m
SCALE→1.001000
INPUT ––– ––– ENTER
GRID FACTOR
=1.000686

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
● Input Range :Elevation : –9,999 to +9,999 meter (–32,805 to +3,2805 ft, ft+in)
Scale Factor: 0.990000 to 1.010000

6-16

6 SPECIAL MODE (Menu Mode)

6.3 Setting Illumination of Display and Cross Hairs
Setting ON/OFF/LEVEL (1 to 9) for illumination of display (LCD) and reticle.
Setting LEVEL (1 to 9) is only for reticle.
[Example setting] LEVEL:2 and turn on the illumination.
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)
key to get the menu on page 2.

2 Press the [F3] key.
The data previously set is shown.

3 Press the [F3](LEVEL) key.

[MENU]
[F4]

Display

MENU
2/3
F1:PROGRAMS
F2:GRID FACTOR
F3:ILLUMINATION P↓

[F3]

ILLUMINATION [OFF:1]
F1:ON
F2:OFF
F3:LEVEL

[F3]

ILLUMINATION [OFF:1]
[LEVEL MODE]
↓

4 Press the [F2](↑) key, and then press the

[F2]
[F4]

[F4](ENTER) key.

5 Press the [F1](ON) key.

[F1]

● To return to previous mode, press the [ESC] key.

6-17

↑

–––

ENTER

ILLUMINATION [OFF:2]
F1:ON
F2:OFF
F3:LEVEL
ILLUMINATION [ON:2]
F1:ON
F2:OFF
F3:LEVEL

6 SPECIAL MODE (Menu Mode)

6.4 Setting Mode 1
In this mode, the following settings are possible.
1. Setting Minimum Reading
2. Auto Power off
3. Vertical and Horizontal Angle Tilt Correction (Tilt ON/OFF)
(GPT-2009 has vertical angle tilt correction only.).
4. Systematic Error of Instrument Correction (GPT-2003/2005/2006)
5. Selecting battery type
● This setting is memorized after power off.

6.4.1 Setting Minimum Reading
Select minimum display unit for angle measurement, coarse distance measurement mode.
● To select minimum display for fine measurement mode, see Chapter 16 “SELECTING MODE” .
Degree

Angle Unit
GON

MIL

GPT-2003
GPT-2005
GPT-2006

5" / 1"

1mgon / 0.2mgon

0.1mil / 0.01mil

GPT-2009

10" / 5"

Models

Coarse mode
Distance unit
10mm (0.02ft)/
1mm(0.005ft)

2mgon / 1mgon

0.1mil / 0.01mil

[Example] Minimum angle : 5”, Coarse : 1mm
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)

Display

[MENU]
[F4]
[F4]

MENU
3/3
F1:PARAMETERS 1
F2:CONTRAST ADJ.
P↓

2 Press the [F1] key.

[F1]

PARAMETERS 1
F1:MINIMUM READING
F2:AUTO POWER OFF
F3:TILT
P↓

3 Press the [F1] key.

[F1]

MINIMUM READING
F1:ANGLE
F2:COARSE

4 Press the [F1] key.

[F1]

MINIMUM ANGLE
[F1: 1"
F2: 5"

key twice to get the menu on page 3.

]
ENTER

5 Press the [F2](5") key and press the [F4](ENTER)
key.

6 Press the [F2] key.

6-18

[F2]
[F4]

MINIMUM READING
F1:ANGLE
F2:COARSE

[F2]

COARSE READING
F1: 1mm
[F2:10mm]
ENTER

6 SPECIAL MODE (Menu Mode)

7 Press the [F1] key and press the [F4](ENTER) key.

[F1]
[F4]

MINIMUM READING
F1:ANGLE
F2:COARSE

● To return to previous mode, press the [ESC] key.

6.4.2 Auto Power Off
If no key operation is given or no process of measurement is performed for more than 30 minutes ( No
change exceeding 30” has occurred during horizontal angle or vertical angle measurement.), the power
turns off automatically. If the instrument is set at distance measurement mode ( No change in distance
exceeding 10cm has occurred during distance measurement), the mode changes to angle
measurement automatically in case that the instrument does not operate for approximately 10 minutes,
and the power turns off after 20 minutes.
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)

Display

[MENU]
[F4]
[F4]

MENU
3/3
F1:PARAMETERS 1
F2:CONTRAST ADJ.
P↓

2 Press the [F1] key.

[F1]

PARAMETERS 1
1/2
F1:MINIMUM READING
F2:AUTO POWER OFF
F3:TILT
P↓

3 Press the [F2] key.

[F2]

AUTO POWER OFF [OFF]
F1:ON
F2:OFF
ENTER

key twice to get the menu on page 3.

The data previously set is shown.

4 Press the [F1](ON) key or [F2](OFF) key, and

[F1] or [F2]
[F4]

press the [F4](ENTER) key.

6-19

6 SPECIAL MODE (Menu Mode)

6.4.3 Vertical and Horizontal Angle Tilt correction ( Tilt ON/OFF)
(GPT-2009 has vertical angle tilt correction only.)
In case the instrument is used in an unstable situation, constant indexing of vertical and horizontal
angle may be impossible. In this case, the function of tilt correction can be stopped by selecting TILT
OFF. It has been set to X,Y (V/H) TILT ON at the factory.
● This setting is memorized after powering off.
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)
key twice to get the menu on page 3.

[MENU]
[F4]
[F4]

Display

MENU
3/3
F1:PARAMETERS 1
F2:CONTRAST ADJ.
P↓

2 Press the [F1] key.

[F1]

PARAMETERS 1
1/2
F1:MINIMUM READING
F2:AUTO POWER OFF
F3:TILT
P↓

3 Press the [F3] key.

[F3]

TILT SENSOR:[XY-ON]
X:
0°02'10"
Y:
0°03'00"
X-ON XY-ON OFF ENTER

The data previously set is shown.
If already ON, the display shows tilt correction
value.

4 Press the [F1](X-ON) key or [F2](XY-ON) or
[F3](OFF) key, and press the [F4](ENTER) key.

[F1]~[F3]
[F4]

6.4.4 Systematic Error of Instrument Correction (only for GPT-2003/2005/2006)
Setting ON/OFF for error correction of collimation and horizontal axis for angle measurement.
Note: Perform this item after complete Section 17.5 “Adjustment of Compensation Systematic Error of
Instrument”. .
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)
key twice to get the menu on page 2.

[MENU]
[F4]
[F4]

Display

MENU
3/3
F1:PARAMETERS 1
F2:CONTRAST ADJ.
P↓

2 Press the [F1] key.

[F1]

PARAMETERS 1
1/2
F1:MINIMUM READING
F2:AUTO POWER OFF
F3:TILT
P↓

3 Press the [F4] key.

[F4]

PARAMETERS 1
2/2
F1:ERROR CORRECTION
F2:BATTERY TYPE
P↓

4 Press the [F1] key.

[F1]

ERROR CORR.
F1:ON
F2:OFF

The data previously set is shown.

[OFF]

ENTER
5 Press the [F1](ON) key or [F2](OFF) key, and

[F1] or [F2]
[F4]

press the [F4](ENTER) key.

6-20

6 SPECIAL MODE (Menu Mode)

6.4.5 Selecting Battery Type
On-board battery BT-32Q can be also available for GPT-2000 series. When you use BT-32Q (Ni-Cd)
battery, select [Ni-Cd] type of battery in this parameters 1 menu.
If you select wrong type of battery, the battery remaining display may work incorrectly.
BT-52QA : Ni-MH battery type, BT-32Q : Ni-Cd battery type.
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)
key twice to get the menu on page 3/3.

2 Press the [F1] key and press the [F4](P↓) key to
get the menu on page 2.

3 Press the [F2] key.

[MENU]
[F4]
[F4]

Display

MENU
3/3
F1:PARAMETERS 1
F2:CONTRAST ADJ.
P↓

[F1]
[F4]

PARAMETERS 1
2/2
F1:ERROR CORRECTION
F2:BATTERY TYPE
P↓

[F2]

BATTERY TYPE
[F1:Ni-MH
]
F2:Ni-Cd
ENTER

4 Press the [F2] key to select Ni-Cd battery type.

[F2]
[F4]

Then press the [F4](ENTER) key.

6.5 Setting Contrast of Display
Setting level for contrast of display (LCD)
Operating procedure

Operation

1 After pressing the [MENU] key, press the [F4](P↓)
key twice to get the menu on page 3.

2 Press the [F2] key.

Display

[MENU]
[F4]
[F4]

MENU
3/3
F1:PARAMETERS 1
F2:CONTRAST ADJ.
P↓

[F2]

CONTRAST ADJUSTMENT
LEVEL: 4
↓

3 Press the [F1](↓) key or [F2](↑) key, and press the
[F4](ENTER) key.

6-21

[F1]or [F2]
[F4]

↑

–––

ENTER

7 DATA COLLECTION

7

DATA COLLECTION
The GPT-2000 is able to store the measured data into the internal memory.
The internal memory is shared by the measured data files and the coordinate data files.
● Measured data
The collected data is memorized into a files.
● The number of measurement points
( In case not using the internal memory in layout mode)
MAX. 8,000 points
Because the internal memory covers both data collection mode and layout mode, the number of
measurement points will be decreased when the layout mode is used.
For the internal memory, refer to Chapter 9 “MEMORY MANAGER MODE”.
1) When turning off the power, ensure that you are in the main menu screen or main angle
measurement mode.
This ensures completion of the memory access process and avoids possible damage to the
stored data.
2) It is recommended for safety to charge the battery (BT-52QA) beforehand and prepare fully
charged spare batteries.

7-1

7 DATA COLLECTION
● Data collect menu operation
By pressing the [MENU] key, the instrument will be in MENU 1/3 mode.
Press the [F1](DATA COLLECT) key, the menu of data collect 1/2 will be shown.
Normal measurement mode
[ESC]

[MENU]

MENU
1/3
F1:DATA COLLECT
F2:LAYOUT
F3:MEMORY MGR. P↓
[F1]

SELECT A FILE
FN:

Selecting data collection file

INPUT LIST ––– ENTER
Set file

DATA COLLECT
1/2
F1:OCC.PT# INPUT
F2:BACKSIGHT
F3:FS/SS
P↓

[ESC]

[F1]

OCC.PT# INPUT
Setting occupied point
See Section 7.1.3 “Occupied Point and
Backsight Point”.

DATA COLLECTION MENU 1/2
[F2]

BACK SIGHT
Setting direction angle
See Section 7.1.3 “Occupied Point and
Backsight Point”.

[F4]
[F3]

FS/SS
DATA COLLECT
2/2
F1:SELECT A FILE
F2:PCODE INPUT
F3:CONFIG.
P↓

[ESC]

[F1]

Executing data collection
See section 7.2 “Operational Procedure of
“DATA COLLECT””

SELECT A FILE
File can be selected for Data collect.
See Section 7.1.1 “Selecting a File for Data
Collection”.

DATA COLLECTION MENU 2/2
[F2]

PCODE INPUT
Editing PCODE library
See Section 7.5 “Editing PCODE Library
[PCODE INPUT]”
[F3]

CONFIG
Setting Parameter of Data Collect
See Section 7.6 “Setting Parameter of Data
Collect [CONFIG.]”.

7-2

7 DATA COLLECTION

7.1 Preparation
7.1.1 Selecting a File for Data Collection
A file used by data collection mode must be selected at first.
Select a file before beginning data collection mode because selection screen of a file is displayed. And
a selection from data collection menu is possible in the mode.
Operating procedure

Operation

Display

MENU
1/3
F1:DATA COLLECT
F2:LAYOUT
F3:MEMORY MGR. P↓
1 Press [F1](DATA COLLECT) key from menu 1/3.

SELECT A FILE
FN:_________

[F1]

INPUT LIST ––– ENTER
2 Press [F2](LIST) key to display the list of file. *1)

3 Scroll file list by pressing [

] or [

] key and

[

select a file to use. *2),3)

4 Press [F4](ENTER) key.
The file will be set and data collect 1/2 menu will
be shown.

AMIDATA
/M0123
→*HILDATA
/M0345
TOPDATA
/M0789
––– SRCH ––– ENTER

[F2]

] or [

]

[F4]

TOPDATA
/M0789
→RAPDATA
/M0564
SATDATA
/M0456
––– SRCH ––– ENTER
DATA COLLECT
1/2
F1:OCC.PT# INPUT
F2:BACKSIGHT
F3:FS/SS
P↓

*1) If you want to make a new file or input file name directly, press [F1](INPUT) key and enter a file name.
*2) When a file has been selected already, '*' mark is indicated on left of current file name.
*3) Data in a file shown with arrow can be searched by pressing [F2](SRCH) key.

● It is possible to select a file from DATA COLLECT 2/2 menu in the
same way.

7-3

DATA COLLECT
2/2
F1:SELECT A FILE
F2:PCODE INPUT
F3:CONFIG.
P↓

7 DATA COLLECTION

7.1.2 Selecting a Coordinate File for Data Collection
When coordinate data in a coordinate data file are used for occupied point or backsight point, select a
coordinate file from the data collect menu 2/2 beforehand.
Operating procedure

Operation

Display

DATA COLLECT
2/2
F1:SELECT A FILE
F2:PCODE INPUT
F3:CONFIG.
P↓
1 Press the [F1](SELECT A FILE) key from DATA

[F1]

COLLECT menu 2/2.

2 Press the [F2](COORD.DATA) key.

[F2]

SELECT A FILE
F1:MEAS.DATA
F2:COORD.DATA
SELECT A FILE
FN:
INPUT LIST --- ENTER

3 Select a coordinate file in the same manner as
Section 7.1.1 “Selecting a File for Data Collection”.

7.1.3 Occupied Point and Backsight Point
The occupied point and direction angle in the data collect mode are linked with the occupied point and
direction angle in normal coordinate measurement.
It is possible to set or change the occupied point and direction angle from the data collect mode.
Occupied point can be set by two setting methods as follow.
1) Setting from the coordinate data stored in the internal memory.
2) Direct key input.
The following three setting methods for backsight point can be selected.
1) Setting from the coordinate data stored in the internal memory.
2) Direct key input of coordinate data.
3) Direct key input of setting angle.
Note: See 9.4 “Coordinate Data Direct Key Input” and 9.7.2 “Loading Data” for how to store
coordinate into the internal memory.
● Example for setting the occupied point:
In case of setting occupied point from the coordinate data stored in the internal memory.
Operating procedure

1 Press the [F1](OCC.PT# INPUT) key from the
data collect menu 1/2.
The previous data is shown.

2 Press the [F4] (OCNEZ) key.

Operation

Display

[F1]

PT#
→ PT-01
ID
:
INS.HT:
0.000 m
INPUT SRCH REC OCNEZ

[F4]

OCC.PT
PT#:PT-01
INPUT LIST NEZ ENTER

3 Press the [F1](INPUT) key and enter PT#.*1)

[F1]
Enter PT#
[F4]

Press the [F4](ENT) key.

7-4

N:
E:
Z:
>OK?

0.000m
0.000m
0.000m
[YES] [NO]

7 DATA COLLECTION

4 Press the [F3](YES) key.

5 Enter ID, INS.HT in the same way. *2),3)

[F3]

PT#
→ PT-11
ID
:
INS.HT:
0.000 m
INPUT SRCH REC OCNEZ

Enter ID,
INS.HT

PT#
:PT-11
ID
:
INS.HT→
1.335 m
INPUT SRCH REC OCNEZ
>REC ?
[YES][NO]

6 Press [F3](REC) key.

[F3]

7 Press [F3](YES) key.

[F3]

The display returns to the data collect menu 1/2.

DATA COLLECT
1/2
F1:OCC.PT# INPUT
F2:BACKSIGHT
F3:FS/SS
P↓

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
*2) ID can be input by inputting a register number linked with PCODE Library.
To show the list of PCODE library, press the [F2](SRCH) key.
*3) Press the [F3](REC) key when you do not input the INS.HT.
● The data recorded in data collect is PT#, ID and INS.HT.
● If point is not found in internal memory "PT# DOES NOT EXIST" is displayed.

7-5

7 DATA COLLECTION
● Example for setting the direction angle:
The following is to memorize the data of the backsight after setting the backsight point from point
number.
Operating procedure

Operation

1 Press the [F2](BACKSIGHT) key from the data
collect menu 1/2.
The previous data is shown.

2 Press the [F4] (BS) key. *1)

Display

→
:
:
0.000 m
0SET MEAS BS

[F2]

BS#
PCODE
R.HT
INPUT

[F4]

BACKSIGHT
PT#:
INPUT LIST NE/AZ ENT

3 Press the [F1](INPUT) key and enter PT#. *2)

[F1]
Enter PT#
[F3]

4 Press the [F3](YES) key.

M:
E:
Z:
>OK?

0.000m
0.000m
0.000m
[YES] [NO]

[F3]

BS#
PCODE
R.HT
INPUT

→ PT-22
:
:
0.000 m
0SET MEAS BS

5 Press the [F3](MEAS) key.

[F3]

BS#
PCODE
R.HT
*VH

→ PT-22
:
:
0.000 m
SD NEZ NP/P

6 Collimate back sight point.

Collimate
BS
[F2]

Enter PCODE,R.HT in the same way. *3),4)

Select one of the measuring mode and press the
soft key.
EXAMPLE : [F2](Slope Distance) key.
Horizontal circle is set to calculated direction
angle. Measuring starts.
Measuring result is memorized and the display
returns to the data collect menu 1/2.

V :
90°00'00"
HR:
0°00'00"
SD*[n]
<<< m
> Measuring...
DATA COLLECT
1/2
F1:OCC.PT# INPUT
F2:BACKSIGHT
F3:FS/SS
P↓

*1) Pressing each time the [F3] key, the input method changes as Coordinate value, Angle, Coordinate
point name alternatively.
*2) Refer to Chapter 2.6 “How to Enter Alphanumeric characters”.
*3) PCODE can be input by inputting a register number linked with PCODE Library.
To show the list of PCODE library, press the [F2](SRCH) key.
*4) Data collect sequence can be set to [EDIT→ MEAS]. Refer to Section 7.6 “Setting Parameter of Data
Collect [CONFIG.]”.
● If point is not found in internal memory " PT# DOES NOT EXIST" is displayed.

7-6

7 DATA COLLECTION

7.2 Operational Procedure of “DATA COLLECT”
Operating procedure

Operation

Display

DATA COLLECT
1/2
F1:OCC.PT# INPUT
F2:BACKSIGHT
F3:FS/SS
P↓
1 Press the [F3](FS/SS) key from the data collect

[F3]

menu 1/2.
The previous data is shown.

2 Press the [F1](INPUT) key and enter PT#.

[F1]
Enter PT#
[F4]

Press the [F4](ENT) key. *1)

PT#
PCODE
R.HT
INPUT

PT#
=PT-01
PCODE :
R.HT :
0.000 m
1234 5678 90.– [ENT]
PT#
PCODE
R.HT
INPUT

3 Enter PCODE, R.HT in the same way. *2),3)

[F1]
Enter
PCODE
[F4]
[F1]
EnterR.HT
[F4]
[F3]

4 Press the [F3](MEAS) key.
5 Collimate the target point.

→
:
:
0.000 m
SRCH MEAS ALL

:PT-01
→
:
0.000 m
SRCH MEAS ALL

PT#
→ PT-01
PCODE :TOPCON
R.HT :
1.200 m
INPUT SRCH MEAS ALL
VH *SD
NEZ
P1↓

Collimate

6 Press one of the [F1] to [F3] key. *4)

[F2]

Example: [F2](SD) key.
Measuring starts.

The measuring data is memorized and the display
changes to the next point. *5)
PT# is automatically incremented.

7 Enter the next point data and collimate the next

V : 90°10'20"
HR: 120°30'40"
SD*[n]
< m
> Measuring...
< complete >
PT#
PCODE
R.HT
INPUT

→ PT-02
:TOPCON
:
1.200 m
SRCH MEAS ALL

Collimate

point.

8 Press [F4](ALL) key.
Measuring starts in the same measuring mode of
the previous point.
Data is recorded.

[F4]

V : 90°10'20"
HR: 120°30'40"
SD*[n]
< m
> Measuring...
< complete >
PT#
PCODE
R.HT
INPUT

Continue the measuring in the same way.
To finish the mode , press [ESC] key.

7-7

→ PT-03
:TOPCON
:
1.200 m
SRCH MEAS ALL

7 DATA COLLECTION

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
*2) PCODE can be input by inputting a register number linked with PCODE Library.
To show the list of PCODE library, press the [F2](SRCH) key.
*3) Data collect sequence can be set to [EDIT→MEAS]. See to Section 7.6 “Setting Parameter of Data
Collect [CONFIG.]”.
*4) The mark "*" indicates the previous measuring mode.
*5) You can confirm the measured data as follows. Refer to Section 7.6 “Setting Parameter of Data Collect
[CONFIG.]”.

V : 90°10'20"
HR: 120°30'40"
SD:
98.765 m
> OK ?
[YES][NO]

7.2.1 Searching the recorded data
While executing the DATA COLLECT mode, you can search the recorded data.
Operating procedure

Operation

Display

PT#
PCODE
R.HT
INPUT
1 While executing the DATA COLLECT mode, press
[F2](SRCH) key. *1)

[F2]

The using file name will appear on the top of the
right side of the display.

2 Select one of three search methods by pressing
[F1] to [F3] key. *2)

→ PT-02
:
: 1.200 m
SRCH MEAS ALL

SEARCH
[TOPCON]
F1:FIRST DATA
F2:LAST DATA
F3:PT# DATA

[F1] to [F3]

*1) It is possible to see the PCODE list when the arrow is located beside PCODE or ID.
*2) The operation is same as the "SEARCH" in the MEMORY MANAGER mode.
For more information, refer to Section 9.2 “Searching Data”.

7.2.2 Entering PCODE / ID using PCODE Library
While executing the DATA COLLECT mode, you can enter PCODE /ID from PCODE Library.
Operating procedure

Operation

Display

PT#
PCODE
R.HT
INPUT
1 Move the arrow to the PCODE or ID in the DATA
COLLECT mode, press the [F1](INPUT) key.

2 Enter a register number linked with PCODE library
and press the [F4](ENT) key.
(Example)
Register number, 32 = TOPCON

7-8

[F1]

Enter No
[F4]

:PT-02
→
: 1.200 m
SRCH MEAS ALL

PT#
:PT-02
PCODE =32
R.HT : 1.200 m
1234 5678 90.– [ENT]
PT#
PCODE
R.HT
INPUT

:PT-02
:TOPCON
→ 1.200 m
SRCH MEAS ALL

7 DATA COLLECTION

7.2.3 Entering PCODE / ID from the list of PCODE
You can also enter PCODE / ID from the list of PCODE.
Operating procedure

Operation

Display

PT#
PCODE
R.HT
INPUT
1 Move the arrow to the PCODE or ID in the DATA

:PT-02
→
: 1.200 m
SRCH MEAS ALL

[F2]

COLLECT mode, press the [F2](SRCH) key.

→ 001:PCODE01
002:PCODE02
EDIT ––– CLR ENTER

2 By pressing the following keys, the register
number will increase or decrease.
[ ]or[ ]:Increasing or Decreasing one by one
[ ]or[ ]:By ten Increasing or Decreasing. *1)

3 Press the [F4](ENTER) key.

[
[

]or[
]or[

[F4]

]
]

031:PCODE31
→ 032:TOPCON
033:HILTOP
EDIT ––– CLR ENTER
PT#
PCODE
R.HT
INPUT

:PT-02
:TOPCON
→ 1.200 m
SRCH MEAS ALL

*1) To edit the PCODE library, press the [F1](EDIT) key.
To delete the PCODE registered with shown an arrow, press the [F3](CLR) key.
PCODE can be edited in DATA COLLECT menu 2/2 or MEMORY MANAGER menu 2/3.

7-9

7 DATA COLLECTION

7.3 Data Collect Offset Measurement mode
This mode is useful when it is difficult to set up the prism directly, for example at the center of a tree.
Data Collect . Offset Measurement has two measuring methods.
● Angle offset measurement
● Distance offset measurement
● Plane offset measurement
● Column offset measurement

7.3.1 Angle Offset Measurement
Place the prism at the same horizontal distance from the instrument as that of point A0 to measure.
When measuring coordinates of ground point A1 :Set the
instrument height / prism height.
When measuring coordinates of point A0 : Set the
instrument height only. (Set the prism height to 0 ).
Prism P
When sighting to A0, you can select one of two
ways. One is to fix vertical angle to the prism
position even up down the telescope position, and
the other is to gear vertical angle to the up down
of telescope movement. In case following the
vertical angle to the movement of telescope, SD
(Slope Distance) and VD (Vertical Distance) will
be changed according to the movement of
telescope.
To set this option, refer to Chapter 16
“SELECTING MODE”.

Prism height

Instrument height

Occ.Point
Operating procedure

Operation

Display

PT#
PCODE
R.HT
INPUT

→ PT-11
:TOPCON
:
1.200 m
SRCH MEAS ALL

[F3]
[F4]

PT#
PCODE
R.HT
VH
OFSET

→ PT-11
:TOPCON
:
1.200 m
*SD
NEZ P1↓
--NP/P P2↓

2 Press the [F1](OFSET) key.

[F1]

OFFSET
1/2
F1:ANG. OFFSET
F2:DIST. OFFSET
F3:PLANE OFFSET P↓

3 Press the [F1](ANG.OFFSET) key.

[F1]

OFFSET-MEASUREMENT
HR: 120°30'40"
HD:
m
MEAS --- NP/P ---

1 Press the [F3](MEAS) key and press the [F4]key to
get to the next soft key page.

4 Collimate the prism.

Collimate P

7-10

7 DATA COLLECTION

5 Press the [F1](MEAS) key.

OFFSET-MEASUREMENT
HR: 120°30'40"
HD*[n]
< m
>measuring ...

[F1]

Continuous measuring starts.

OFFSET-MEASUREMENT
HR: 120°30'40"
SD*
12.345 m
>OK?
[YES][NO]
6 Collimate point A0 using the horizontal motion

Collimate A0

clamp and horizontal tangent screw.

7 Show the horizontal distance of point A0.
[

]

[

]

[

]

8 Show the relative elevation of point A0.
● Each time pressing [
] key, horizontal distance ,
relative elevation and slope distance are shown in
sequence.

9 Show N coordinate of point A0 or A1.
● Each time pressing [
] key, N,E and Z
coordinate are shown in sequence.

10 Press the [F3](YES) key.

[F3]

The data is recorded and the next measuring point
is displayed.

7-11

OFFSET-MEASUREMENT
HR: 123°30'40"
SD:
12.345 m
>OK?
[YES][NO]
OFFSET-MEASUREMENT
HR: 123°30'40"
HD:
6.543 m
>OK?
[YES][NO]
OFFSET-MEASUREMENT
HR: 123°30'40"
VD:
0.843 m
>OK?
[YES][NO]
OFFSET-MEASUREMENT
HR: 123°30'40"
N :
–12.345 m
>OK?
[YES][NO]
PT#
PCODE
R.HT
INPUT

→ PT-12
:TOPCON
:
1.200 m
SRCH MEAS ALL

7 DATA COLLECTION

7.3.2 Distance Offset Measurement
The measurement of a place apart from a prism is possible by inputting offset horizontal distance of
front and back / right and left.
Forward HD
oHD sign

A0

RorL HD

A1

Prism height

Prism P

Instrument height
Occ.Point
When measuring coordinates of ground point A1:

Set the instrument height / prism height.

When measuring coordinates of point A0:

Set the instrument height only.
(Set the prism height to 0 ).

Operating procedure

Operation

Display

PT#
PCODE
R.HT
INPUT

→ PT-11
:TOPCON
:
1.200 m
SRCH MEAS ALL

[F3]
[F4]

PT#
PCODE
R.HT
VH
OFSET

→ PT-11
:TOPCON
:
1.200 m
*SD
NEZ P1↓
--NP/P P2↓

2 Press the [F1](OFSET) key.

[F1]

OFFSET
1/2
F1:ANG. OFFSET
F2:DIST. OFFSET
F3:PLANE OFFSET P↓

3 Press the [F2](DIST.OFFSET) key.

[F2]

DISTANCE OFFSET
INPUT RorL HD
oHD:
m
INPUT ––– SKP ENTER

[F1]
Enter HD
[F4]

DISTANCE OFFSET
INPUT FORWARD HD
oHD:
m
INPUT ––– SKP ENTER

1 Press the [F3](MEAS) key and press the [F4]key to
get to the next soft key page.

4 Press the [F1](INPUT) key and enter Right and
Left direction offset value.*1)

7-12

7 DATA COLLECTION

5 Press the [F1](INPUT) key and enter Forward

[F1]
Enter HD
[F4]

direction offset value. *1)

6 Collimate the prism.

PT#
:PT-11
PCODE : TOPCON
R.HT :
1.200 m
––– *SD NEZ NP/P

Collimate P

7 Press the [F2] or [F3] key.

[F3]

Example:[F3](NEZ) key
Measuring starts.

The data is recorded and the next measuring point
is displayed.

*1) To skip entering, press the [F3](SKP) key.

7-13

N*[n]
<<< m
E :
m
Z :
m
>measuring ...
>Calculating...
PT#
PCODE
R.HT
INPUT

→ PT-12
:TOPCON
: 1.200 m
SRCH MEAS ALL

7 DATA COLLECTION

7.3.3 Plane Offset Measurement
Measuring will be taken for the place where direct measuring can not be done, for example distance or
coordinate measuring for a edge of a plane.
Three random points (P1, P2, P3) on a plane will be measured at first in the plane offset measurement
to determine the measured plane. Collimate the measuring point (P0) then the instrument calculates
and displays coordinate and distance value of cross point between collimation axis and of the plane.

P

Edge

(Prism)

P

P 2 (Prism)

P3
(Prism)

Target heights of P1 to P3 is set to zero automatically.

Operating procedure

Operation

Display

PT#
PCODE
R.HT
INPUT

→ PT-11
:TOPCON
:
1.200 m
SRCH MEAS ALL

[F3]
[F4]

PT#
PCODE
R.HT
VH
OFSET

→ PT-11
:TOPCON
:
1.200 m
*SD
NEZ P1↓
--NP/P P2↓

2 Press the [F1](OFSET) key.

[F1]

OFFSET
1/2
F1:ANG. OFFSET
F2:DIST. OFFSET
F3:PLANE OFFSET P↓

3 Press the [F3](PLANE OFFSET) key.

[F3]

PLANE
N001#:
SD:
MEAS ---

1 Press the [F3](MEAS) key and press the [F4]key to
get to the next soft key page.

4 Collimate prism P1, and press the [F1](MEAS)
key.
Measuring will start.
After measuring, the display will show the second
point measurement.

7-14

Collimate
P1
[F1]

m
NP/P ---

PLANE
N001#:
SD* [n]
<< m
>Measuring...

7 DATA COLLECTION

5 Measure the second and third points in the same
way. *1)

Collimate
P2
[F1]

PLANE
N002#:
SD:
MEAS ---

m
NP/P ---

Collimate
P3
[F1]

PLANE
N003#:
SD:
MEAS ---

m
NP/P ---

The display changes to PT# input in the plane
offset measurement.
Input point number if necessary.

PLANE
PT#
→ PT-11
PCODE :TOPCON
INPUT SRCH --- MEAS

6 Press the [F4](MEAS) key.
The instrument calculates and displays coordinate
and distance value of cross point between
collimation axis and of the plane. *2)

7 Collimate the edge (P0) of the plane. *3), 4)

[F4]

HR:
HD:
VD:
>OK?

80°30'40"
54.321 m
10.000 m
[YES][NO]

Collimate
P0

HR:
HD:
VD:
>OK?

75°30'40"
54.600 m
-0.487 m
[YES][NO]

V :
HR:
SD:
>OK?

90°30'40"
75°30'40"
54.602 m
[YES][NO]

8 To show the slope distance (SD), press the [

]
key.
● Each time pressing the [
] key, horizontal
distance, relative elevation and slope distance are
shown in sequence.
● To show coordinate value of point P0, press the
[
] key.

9 Press the [F3](YES) key. Next offset point number
will be displayed.

10 To escape the measuring, press the [ESC] key.
The display returns to the next point number in
data collect mode.

[F3]

[ESC]

PLANE
PT#
→ PT-12
PCODE :TOPCON
INPUT SRCH --- MEAS
PT#
PCODE
R.HT
INPUT

→ PT-12
:TOPCON
:
1.200 m
SRCH MEAS ALL

*1) In case the calculation of plane was not successful by the measured three points, error displays. Start
measuring over again from the first point.
*2) Data display is the mode beforehand of offset measurement mode.
*3) Error will be displayed when collimated to the direction which does not cross with the determined plane.
*4) The reflector height of the target point P0 is set to zero automatically

7-15

7 DATA COLLECTION

7.3.4 Column Offset Measurement
If it is possible to measure circumscription point (P1) of column directly, the distance to the center of the
column (P0), coordinate and direction angle can be calculated by measured circumscription points (P2)
and (P3).
The direction angle of the center of the column is 1/2 of total direction angle of circumscription points
(P2) and (P3).

P

P2

P3

P

Example: Non-prism measurement
Operating procedure

Operation

Display

PT#
PCODE
R.HT
INPUT

→ PT-11
N
:TOPCON
P
:
1.200 m
SRCH MEAS ALL

[F3]
[F4]

PT#
PCODE
R.HT
VH
OFSET

→ PT-11
N
:TOPCON
P
:
1.200 m
*SD
NEZ P1↓
--NP/P P2↓

2 Press the [F1](OFSET) key.

[F1]

OFFSET
1/2
N
F1:ANG. OFFSET
P
F2:DIST. OFFSET
F3:PLANE OFFSET P↓

3 Press the [F4](P1↓) key.

[F4]

OFFSET
2/2
F1:COLUMN OFFSET NP

1 Press the [F3](MEAS) key and press the [F4]key to
get to the next soft key page.

P↓
4 Press the [F1](COLUMN OFFSET) key.

[F1]

5 Collimate the center of the column (P1) and press
the [F1](MEAS) key.
Measuring will start.
After the measurement, angle measuring display
of the left side (P2) will be shown.

7-16

Collimate
P1
[F1]

COLUMN OFFSET
N
Center
P
HD:
m
MEAS --- NP/P --COLUMN OFFSET
Center
HD* [n]
<< m
>Measuring...

N
P

7 DATA COLLECTION

6 Collimate the left side of the column (P2) and
press the [F4](SET) key.
After the measurement, angle measuring display
of the right side (P3) will be shown.

7 Collimate the right side of the column (P3) and
press the [F4](SET) key.

Collimate
P2
[F4]

COLUMN OFFSET
N
Left
P
HR: 120°30'40"
--- --- --- SET

Collimate
P3
[F4]

COLUMN OFFSET
N
Right
P
HR: 180°30'40"
--- --- --- SET

The distance between the instrument and center
of the column (P0) will be calculated.

COLUMN OFFSET
HR: 150°30'40" NP
HD:
43.321 m
>OK?
[YES][NO]

To show the relative elevation (VD), press the
[

[

] key.

]

Each time pressing the [
] key, horizontal
distance, relative elevation and slope distance are
shown in sequence.
To show coordinate of point P0, press the [
key.

COLUMN OFFSET
HR: 150°30'40" NP
VD:
2.321 m
>OK?
[YES][NO]

]

8 Press the [F3](YES) key. The display returns to the
next point number in data collect mode.

[F3]

PT#
PCODE
R.HT
INPUT

→ PT-12
N
:TOPCON
P
:
1.200 m
SRCH MEAS ALL

7.4 NEZ Auto Calculation
As measured data is collected, coordinates are calculated and stored for traverse or topo collection.
Automatic making out function of coordinate data sets up in CONFIG of data collect. Refer to Section
7.6 “Setting Parameter of Data Collect [CONFIG.]”.
As a default, coordinate data calculated will be saved in a file of the same name as the measurement
data file.
When the coordinate data file of the same name as the measurement data file does not exist, it will be
generated automatically.
It is possible to change a file for saving coordinate data in the DATA COLLECT Menu 2/2 (F1:SELECT
A FILE).
To calculate a coordinate data, it is necessary to add a point number in Data Collect execution.
When a coordinate data of the same point number exist already, it can be replaced with the new data by
confirming display.
● Coordinates will be calculated using the grid factor.
To set the grid factor, see Section 6.2“Setting the GRID FACTOR” .

7-17

7 DATA COLLECTION

7.5 Editing PCODE Library [PCODE INPUT]
PCODE data can be entered into PCODE Library in this mode.
A PCODE is liked with a number of 1 to 50.
PCODE can be also edited in MEMORY MANAGER menu 2/3 in the same way.
Operating procedure

Operation

Display

DATA COLLECT
2/2
F1:SELECT A FILE
F2:PCODE INPUT
F3:CONFIG.
P↓
1 Press the [F2](PCODE INPUT) key from Data

[F2]

Collect menu 2/2.

2 By pressing the following keys, the list will increase
or decrease.
[ ] or[ ] : Increasing or Decreasing one by one
[ ]or[ ] : By ten Increasing or Decreasing.

3 Press the [F1](EDIT) key.

[
[

]or[
]or[

[F1]

4 Enter PCODE and press the [F4](ENT) key. *1)

Enter
PCODE
[F4]

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.

7-18

]
]

→ 001:TOPCON
002:TOKYO
EDIT –––
CLR

–––

011:URAH
→ 012:AMIDAT
013:HILLTO
EDIT –––
CLR

–––

011:URAH
→ 012=AMIDAT
013:HILLTO
1234 5678 90.– [ENT]
011:URAH
→ 012:AMISUN
013:HILLTO
EDIT –––
CLR

–––

7 DATA COLLECTION

7.6 Setting Parameter of Data Collect [CONFIG.]
In this mode, the following settings of data collect mode are possible.
● Setting Items
Menu

Selecting Item

FINE / CRS(1) /
CRS(10)

F1:DIST MODE

F2:HD/SD

HD/SD
N-TIMES /
SINGLE / REPEAT

F3:MEAS. SEQ.
F1:DATA CONFIRM

F2:COLLECT SEQ.

YES/NO

[EDIT→MEAS] /
[MEAS→EDIT]

F3:NEZ AUTO. CALC

ON/OFF

Contents

Select Fine /Coarse(1) /Coarse(10) mode in distance
measurement mode.
The unit to be displayed is as follows.
Fine mode: 1mm (0.2mm)
Coarse (1) mode: 1mm
Coarse (10) mode: 10mm
Select the distance measurement mode Horizontal
Distance or Slope distance.
Select to set measurement mode for distance
measurement.
It is possible to confirm the result of measuring data
before the data is recorded.
Select the procedure of data collection.
[EDIT→MEAS] :Measurement is carried out after
entering other data.
[MEAS→EDIT] :Measurement is carried out before
entering other data.
It is possible to calculate coordinate value of data collected
and store it into coordinate data file in every data collection.

● How to Set Items
Example Setting: DATA CONFIRM : YES
Operating procedure

Operation

Display

DATA COLLECT
2/2
F1:SELECT A FILE
F2:PCODE INPUT
F3:CONFIG.
P↓
1 Press the [F3] (CONFIG.) key from the data collect
menu 2/2.
The CONFIG menu 1/2 is shown.

2 Press the [F4](P↓) key to display the CONFIG
menu 2/2.

3 Press the [F1] (DATA CONFIRM) key.
[ ] indicates the current setting.

[F3]

CONFIG.
F1:DIST MODE
F2:HD/SD
F3:MEAS. SEQ.

1/2

P↓

[F4]

CONFIG.
2/2
F1:DATA CONFIRM
F2:COLLECT SEQ.
F3:NEZ AUTO. CALC P↓

[F1]

DATA CONFIRM
F1:YES
[F2:NO ]
ENTER

4 Press the [F1] (YES) key.

[F1]

DATA CONFIRM
[F1:YES]
F2:NO
ENTER

5 Press the [F4] (ENTER) key.

[F4]

7-19

8 LAYOUT

8

LAYOUT
LAYOUT mode has two functions which are setting of layout points and setting new points using
coordinate data in the internal memory.
Also, if the coordinate data is not stored in the internal memory, this can be input from key board.
The coordinate data is loaded from PC to the internal memory via RS-232C.
● The coordinate data
The coordinate data is memorized into a file.
For the internal memory, refer to Chapter 9 “MEMORY MANAGER MODE”.
The GTS-220 is able to store the coordinate data into the internal memory.
The internal memory is shared by the measured data and the coordinate data for layout.
Maximum 30 files can be generated.
● The number of coordinate data
( In case not using the internal memory in the data collect mode)
MAX. 16,000 points
Because the internal memory covers both data collection mode and layout mode, the number of
coordinate data will be decreased when the data collection mode is used.
1) When turning off the power, ensure that you are in the main menu screen or main angle
measurement mode.
This ensures completion of the memory access process and avoids possible damage to
the stored data.
2) It is recommended for safety to charge the battery (BT-52QA) beforehand and prepare fully
charged spare batteries.
3) When recording new point data, remember to consider the amount of internal memory
available.

8-1

8 LAYOUT
●

Layout menu operation

By pressing the [MENU] key, the instrument will be in MENU 1/3 mode.
Press the [F2](LAYOUT) key, the menu of layout 1/2 will be shown.
Normal measurement mode
[ESC]

[MENU]

MENU
1/3
F1:DATA COLLECT
F2:LAYOUT
F3:MEMORY MGR. P↓
[F2]

SELECT A FILE
FN:_________
INPUT LIST SKP ENTER

Selecting a file for LAYOUT
[F1](INPUT) : Input a new file name.
[F2](LIST)
: Seek for a file.
[F3](SKP)
: If you do not want to create or reselect a file.
[F4](ENTER) : To select display file.

[F3]/[F4]

LAYOUT
1/2
F1:OCC.PT INPUT
F2:BACKSIGHT
F3:LAYOUT
P↓

OCC.PT INPUT
[ESC]

[F1]

OCC.PT
PT#:__________
INPUT LIST NEZ ENTER

LAYOUT MENU 1/2

BACKSIGHT
[F2]

BACKSIGHT
PT#:__________
INPUT LIST NE/AZ ENT
DATA INPUT

[F4]
[F3]

LAYOUT
PT#:__________
INPUT LIST NEZ ENTER
SELECT A FILE

LAYOUT
2/2
F1:SELECT A FILE
F2:NEW POINT
F3:GRID FACTOR
P↓

[ESC]

[F1]

SELECT A FILE
FN:__________
INPUT LIST ––– ENTER

LAYOUT MENU 2/2

NEW POINT
[F2]

NEW POINT
F1:SIDE SHOT
F2:RESECTION
GRID FACTOR

[F3]

GRID FACTOR
=1.000000
>MODIFY?

8-2

[YES][NO]

8 LAYOUT

8.1 Preparation
8.1.1 Setting the GRID FACTOR
● Calculation Formula
1) Elevation Factor

Elevation Factor =

R
R+ELEV.

R
: The average radius of the earth
ELEV. : The elevation above mean sea level

2) Scale Factor
Scale Factor : Scale Factor at the surveying station
3) Grid Factor
Grid Factor = Elevation Factor × Scale Factor
Distance Calculation
1) Grid Distance
HDg = HD × Grid Factor

HDg : Grid d istance
HD : Ground distance

2) Ground Distance
HDg
HD =
Grid Factor
● How to Set Grid Factor
Operating procedure

Operation

Display

LAYOUT
2/2
F1:SELECT A FILE
F2:NEW POINT
F3:GRID FACTOR P↓
1 Press the [F3](GRID FACTOR) key from the

[F3]

Layout menu 2/2.

GRID FACTOR
=0.998843
>MODIFY?

2 Press the [F3](YES) key.

[F3]

3 Press the [F1] (INPUT) key and enter Elevation.
*1)

[F1]
Enter ELEV.
[F4]

Press the [F4](ENT) key.

4 Enter Scale Factor in the same way.

[F1]
Enter Scale
[F4]

[YES][NO]

GRID FACTOR
ELEV.→1000 m
SCALE:0.999000
INPUT ––– ––– ENTER
1234 5678 90.–[ENT]

GRID FACTOR
ELEV.:2000 m
SCALE→1.001000
INPUT ––– ––– ENTER
GRID FACTOR
=1.000686

Grid Factor is displayed for 1 to 2 second and
display returns to Layout menu 2/2.

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
● Input Range :Elevation
: –9,999 to +9,999 meter (–32,805 to +3,2805 ft, ft+in)
Scale Factor : 0.990000 to 1.010000

8-3

8 LAYOUT

8.1.2 Selecting Coordinate Data File
You can execute a Layout from selected coordinate data file, also you can record New point measured
data into the selected coordinate data file.
● The only coordinate data file existing can be selected and you can not make a new file in this mode.
For more information about File, refer to Chapter 9 “MEMORY MANAGER MODE”.
● When LAYOUT MODE is begun, a file can be selected in the same way.
Operating procedure

Operation

Display

LAYOUT
2/2
F1:SELECT A FILE
F2:NEW POINT
F3:GRID FACTOR P↓
1 Press the [F1](SELECT A FILE) key from the

SELECT A FILE
FN:

[F1]

Layout menu 2/2.

INPUT LIST ––– ENTER
2 Press the [F2](LIST) key to display the list of

3 Scroll file list by pressing the [

]or[

COORDDATA /C0123
→*TOKBDATA /C0345
TOPCDATA /C0789
––– SRCH ––– ENTER

[F2]

coordinate data file.*1)

] key and

[

select a file to use. *2),3)

4 Press the [F4](ENTER) key.

]or[

[F4]

The file will be set .

]

*TOKBDATA
→ TOPCDATA
SATIDATA
––– SRCH

LAYOUT
2/2
F1:SELECT A FILE
F2:NEW POINT
F3:GRID FACTOR P↓

*1) If you want to input file name directly, press the [F1](INPUT) key and enter a file name.
*2) When a file has been selected already, ‘*’ mark is indicated on left of current file name.
For the file discrimination mark (*, @, &), refer to Section 9.3 “FILE MAINTENANCE”.
*3) Data in a file shown with arrow can be searched by pressing the [F2](SRCH) key.

8-4

/C0345
/C0789
/C0456
––– ENTER

8 LAYOUT

8.1.3 Setting Occupied Point
Occupied point can be set by two setting methods as follow.
1) Setting from the coordinate data stored in the internal memory.
2) Direct key input of coordinate data.
● Example setting :Setting the occupied point from the internal coordinate data file
Operating procedure

Operation

1 Press the [F1](OCC.PT INPUT) key from the

[F1]

Layout menu 1/2.
The previous data is shown.

Display

OCC.PT
PT#:
INPUT LIST NEZ ENTER

2 Press the [F1] (INPUT) key and enter PT#. *1)

[F1]
Enter PT#
[F4]

Press the [F4](ENT) key.

OCC.PT
PT#=PT-01
1234 5678 90.– [ENT]

3 Enter INS.HT in the same way.

[F1]
Enter
INS.HT
[F4]

The display returns to layout menu 1/2.

INSTRUMENT HEIGHT
INPUT
INS.HT:
0.000 m
INPUT ––– ––– [ENT]
1234 5678 90.– [ENT]
LAYOUT
1/2
F1:OCC.PT INPUT
F2:BACKSIGHT
F3:LAYOUT
P↓

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.

8-5

8 LAYOUT
● Example setting :Setting Instrument point coordinates directly
Operating procedure

Operation

1 Press the [F1](OCC.PT INPUT) key from the

[F1]

Layout menu 1/2.
The previous data is shown.

Display

OCC.PT
PT#:
INPUT LIST NEZ ENTER

2 Press the [F3] (NEZ) key.

[F3]

3 Press the [F1](INPUT) key and enter

[F1]
Enter coord.
[F4]

coordinate value.
press the [F4](ENT) key. *1)

N→
0.000 m
E:
0.000 m
Z:
0.000 m
INPUT --- PT# ENTER
COORD.DATA INPUT
PT#:
INPUT ––– ––– ENTER
1234 5678 90.– [ENT]

4 Press the [F1](INPUT) key and enter PT#.

[F1]
Enter PT#
[F4]

Press the [F4](ENT) key. *2)

5 Enter Instrument Height in the same way.

[F1]
Enter
INS.HT
[F4]

The display returns to layout menu 1/2.

INSTRUMENT HEIGHT
INPUT
INS.HT:
0.000 m
INPUT ––– ––– ENTER
1234 5678 90.– [ENT]
LAYOUT
1/2
F1:OCC.PT INPUT
F2:BACKSIGHT
F3:LAYOUT
P↓

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
*2) It is possible to record the coordinate value. Refer to Chapter 16 “SELECTING MODE”.

8-6

8 LAYOUT

8.1.4 Setting Backsight Point
The following three setting methods for Backsight point can be selected.
1) Setting from the coordinate data file stored in the internal memory.
2) Direct key input of coordinate data.
3) Direct key input of setting angle.
● Example setting :Setting the backsight point from the internal coordinate data file
Operating procedure

Operation

1 Press the [F2](BACKSIGHT) key from the Layout
menu 1/2.

[F2]

Display

BACKSIGHT
PT#:
INPUT LIST NE/AZ ENT

2 Press the [F1] (INPUT) key.

[F1]
Enter PT#
[F4]

Enter PT#, press the [F4](ENT) key. *1)

BACKSIGHT
PT#=BK-01
1234 5678 90.– [ENT]
BACKSIGHT
H(B)=
0°00'00"
>Sight ?

3 Sight the backsight point and press the [F3](YES)
key.
The display returns to the layout menu 1/2.

[YES][NO]

Sight BK
[F3]

*1) Refer to Section 2.6 "How to enter alphanumeric characters".

● With each pressing of [F3] key,
method of inputting backsight
is changed.

BACKSIGHT
PT#:
INPUT LIST NE/AZ ENT
[F3](NE/AZ)

N →
E :

0.000 m
0.000 m

INPUT –––

AZ

ENTER

[F3](AZ)

BACKSIGHT
HR:
INPUT ––– PT#

ENTER

[F3](PT#)

8-7

8 LAYOUT
● Example setting: Setting the backsight point coordinates directly
Operating procedure

Operation

1 Press the [F2](BACKSIGHT) key from the Layout
menu 1/2.
The previous data is shown.

[F2]

Display

BACKSIGHT
PT#:
INPUT LIST NE/AZ ENT

2 Press the [F3] (NE/AZ) key.

[F3]

N→
E:

0.000 m
0.000 m

INPUT –––
3 Press the [F1](INPUT) key and enter coordinate
value.
Press the [F4](ENT) key. *1) , 2)

[F1]
Enter coord.
[F4]

Sight BK

5 Press the [F3](YES) key.

[F3]

The display returns to the layout menu 1/2.

[YES][NO]

LAYOUT
1/2
F1:OCC.PT INPUT
F2:BACKSIGHT
F3:LAYOUT
P↓

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
*2) It is possible to record the coordinate value. Refer to Chapter 16 “SELECTING MODE”.

8-8

ENTER

BACKSIGHT
H(B)=
0°00'00"
>Sight ?

4 Sight the backsight point.

AZ

8 LAYOUT

8.2 Executing a Layout
The following methods can be selected for executing a Layout:
1) Recalling points from internal memory by point number.
2) Direct key input of coordinate values.
Example setting : Recalling point from internal memory.
Operating procedure

Operation

Display

LAYOUT
1/2
F1:OCC.PT INPUT
F2:BACKSIGHT
F3:LAYOUT
P↓
1 Press the [F3](LAYOUT) key from the layout menu
1/2.

[F3]

LAYOUT
PT#:
INPUT LIST NEZ ENTER

2 Press the [F1](INPUT) key, and enter PT#. *1)
Press the [F4](ENT) key. *2)

3 Enter reflector height in the same way.
When the layout point is set, the instrument will
start layout calculation.
HR: Calculated horizontal angle of the layout point
HD: Calculated horizontal distance from the
instrument to the layout point

4 Collimate the prism, and press the [F1](ANGLE)
key.
PT#: Layout point
HR: Measured (Actual) horizontal angle.
dHR: Horizontal angle to be turned to the layout
point = Actual horizontal angle - Calculated
horizontal angle.
Correct direction when dHR = 0°00'00"

5 Press the [F1](DIST) key.
HD: Measuring (Actual) horizontal distance
dHD: Horizontal distance to be turned to the
layout point = Actual horizontal distance –
Calculated horizontal distance.
dZ: Vertical distance to be turned to the layout
point = Actual vertical distance – Calculated
vertical distance.

6 Press the [F1](MODE) key.

[F1]
Enter PT#
[F4]

REFLECTOR HEIGHT
INPUT
R.HT :
0.000 m
INPUT ––– ––– ENTER

[F1]
Enter R.HT
[F4]

CALCULATED
HR=
90°10'20"
HD=
123.456 m
ANGLE DIST ––– –––

Collimate P
[F1]

PT#: LP-100
HR:
6°20'40"
dHR:
23°40'20"
DIST –––
NEZ –––

[F1]

< m
m
m
NP/P NEXT

HD*
143.84 m
dHD:
–13.34 m
dZ:
–0.05 m
MODE NEZ NP/P NEXT
[F1]

The fine mode measuring starts.

HD*[t]
dHD:
dZ:
MODE NEZ

HD*[r]
dHD:
dZ:
MODE NEZ

< m
m
m
NP/P NEXT

HD*
156.835 m
dHD:
–3.327 m
dZ:
–0.046 m
MODE NEZ NP/P NEXT

8-9

8 LAYOUT

7 When the display value dHR, dHD and dZ are
equal to 0, the layout point is established.*3 )

8 Press the [F2](NEZ) key.
The coordinate data is shown.

9 Press the [F4](NEXT) key to set next layout point .
PT# is automatically incremented.

[F2]

N *
100.000
E :
100.000
Z :
1.015
MODE ANGLE NP/P

[F4]

LAYOUT
PT#: LP-101

m
m
m
NEXT

INPUT LIST NEZ ENTER
*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
*2) Point number could not be entered when data to comply with the coordinate value does not exist in the
file.
*3) Cut & Fill displaying function is available . Refer to Chapter 16 “SELECTING MODE”.

● Point Guide Function (Only for Point Guide type)
The point guide function can be used while executing a Layout.
Operating procedure

Operation

Display

PT#:P1003
HR:
6°20'40"
dHR:
23°40'20"
DIST --- NEZ --1 After measuring Angle, Distance or Coordinate,
press the [MENU] key.

[MENU]

POINTGUIDE

–––
2 Press the [F3](ON) or [MENU] key.

[F3]
or
[MENU]

3 Press the [ESC] key to return to the previous

[ESC]

display.

8-10

––– [ON][OFF]

POINTGUIDE

–––

[OFF]

[ON]

––– [ON][OFF]

PT#:P1003
HR:
6°20'40"
dHR:
23°40'20"
DIST --- NEZ ---

8 LAYOUT

8.3 Setting a New Point
New point is required for example when a layout point cannot be sighted from existing control points.

8.3.1 Side Shot Method
Set up the instrument at a known point, and measure the coordinate of the new points by the side shot
method

N
Known Point B

New Point

Known Point A
(Instrument)

Operating procedure

Operation

Display

LAYOUT
1/2
F1:OCC.PT INPUT
F2:BACKSIGHT
F3:LAYOUT
P↓
1 Press the [F4](↓) key from the layout menu 1/2 to

[F4]

LAYOUT
2/2
F1:SELECT A FILE
F2:NEW POINT
F3:GRID FACTOR P↓

2 Press the [F2](NEW POINT).

[F2]

NEW POINT
F1:SIDE SHOT
F2:RESECTION

3 Press the [F1](SIDE SHOT) key.

[F1]

SELECT A FILE
FN:_________

get the layout menu 2/2.

INPUT LIST ––––ENTER
4 Press the [F2](LIST) key to display the list of

5 Scroll file list by pressing [

]or[

COORDDATA /C0123
→*TOKBDATA /C0345
TOPCDATA /C0789
––– SRCH ––– ENTER

[F2]

coordinate data file. *1)

] key and select

a file to use. *2),3)

8-11

[

]or[

]

*TOKBDATA
→ TOPCDATA
SATIDATA
––– SRCH

/C0345
/C0789
/C0456
––– ENTER

8 LAYOUT

6 Press the [F4](ENTER) key.

[F4]

The file will be set .

SIDE SHOT
PT#:
INPUT SRCH ––– ENTER

7 Press the [F1](INPUT) key, and enter the new
point name. *4)
Press the [F4](ENT) key.

8 Enter reflector height in the same way.

9 Collimate the new point, and press the [F1]

[F1]
Enter PT#
[F4]

REFLECTOR HEIGHT
INPUT
R.HT :
0.000 m
INPUT ––– ––– ENTER

[F1]
Enter R.HT
[F4]

REFLECTOR HEIGHT
INPUT
R.HT :
1.235 m
MEAS --- BP/P ---

Collimate
[F1]

(MEAS) key.
Distance measuring starts.

HR:
123°40'20"
HD*[n]
< m
VD:
m
> Measuring...
< complete >
N : 1234.567 m
E :
123.456 m
Z :
1.234 m
>REC ?
[YES][NO]

10 Press the [F3](YES) key.*5)

[F3]

The name and coordinate value are stored into
COORD.DATA.
The input menu for next new point is displayed.
PT# is automatically incremented.

SIDE SHOT
PT#:NP-101
INPUT SRCH ––– ENTER

*1) If you want to input file name directly, press the [F1](INPUT) key and enter a file name.
*2) When a file has been selected already, ‘*’ mark is indicated on left of current file name.
For the file discrimination mark (*, @, &), refer to Chapter 9.3 “FILE MAINTENANCE”.
*3) Data in a file shown with arrow can be searched by pressing [F2](SRCH) key.
*4) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
*5) An error will be displayed when the internal memory is full.

8-12

8 LAYOUT

8.3.2 Resection Method
Set up the instrument at a new point, and calculate the coordinate of the new point using the coordinate
data of maximum seven known points and the measurements made to these points.
By following observation, resection is possible.
• Resection by distance measurement:2 or more points must be measured
• Resection by angle measurement only:3 or more points must be measured
An occupied point coordinate value will be calculated by the method of least squares.
(In case that 3 known points are measured by angle measurement only, the value would not be
calculated by the method of least squares. )

Known Point A

New Point
(Instrument)

Max. 7 points

Known Point B
Known Point C

Operating procedure

Operation

Display

LAYOUT
1/2
F1:OCC.PT INPUT
F2:BACKSIGHT
F3:LAYOUT
P↓
1 Press the [F4](↓) key from the layout menu 1/2 to

[F4]

LAYOUT
2/2
F1:SELECT A FILE
F2:NEW POINT
F3:GRID FACTOR P↓

2 Press the [F2](NEW POINT).

[F2]

NEW POINT
F1:SIDE SHOT
F2:RESECTION

3 Press the [F2](RESECTION) key.

[F2]

NEW POINT
PT#:

get the layout menu 2/2.

INPUT SRCH SKP ENTER
4 Press the [F1](INPUT) key, and enter the new

[F1]
Enter PT#
[F4]

point name. *1) ,2)
Press the [F4](ENT) key.

INSTRUMENT HEIGHT
INPUT
INS.HT :
0.000 m
INPUT ––– ––– ENTER

8-13

8 LAYOUT

5 Enter instrument height in the same way.

[F1]
Enter
INS.HT
[F4]

NO01#
PT#:
INPUT LIST NEZ ENTER

6 Enter the known point A number. *3)

[F1]
Enter PT#
[F4]

REFLECTOR HEIGHT
INPUT
R.HT :
0.000 m
INPUT ––– ––– ENTER

7 Enter reflector height.

[F1]
Enter R.HT
[F4]

REFLECTOR HEIGHT
INPUT
R.HT :
1.235 m
ANG DIST NP/P ---

8 Collimate the known point A, and press the

Collimate A
[F2]

HR:
123°40'20"
HD*[n]
< m
VD:
m
> Measuring...
< complete >

[F1](ANG) or [F2](DIST) key.
Example:[F2](DIST)
Distance measuring starts.

Known point B entering display will be shown.

NO02#
PT#:
INPUT LIST NEZ ENTER

9 Same as procedure 6 to 8 proceed to the known
SELECT GRID FACTOR
F1:USE LAST DATA
F2:CALC MEAS.DATA

point B.
When two points have been measured by the
[F2](DIST) key, the RESIDUAL ERROR will be
calculated. *4)

10 Select GRID FACTOR for calculation of
RESIDUAL ERROR by pressing [F1] or [F2]
key. *5)
Example: [F1]

11 Press the [F1](NEXT) key to measure other points.
Maximum seven points can be measured.

[F1]

RESIDUAL ERROR
dHD=
0.015 m
dZ =
0.005 m
NEXT ––– G.F. CALC

[F1]

NO03#
PT#:
INPUT LIST NEZ ENTER

12 Same as procedure 6 to 8 proceed to the known
point C.

HR:
123°40'20"
HD*[n]
< m
VD:
m
> Measuring...
< complete >

HR: 123°40'20"
HD:
123.456 m
VD:
1.234 m
NEXT –––
––– CALC

8-14

8 LAYOUT

13 Press the [F4](CALC) key. *6)

[F4]

Standard Deviation will be shown.
Unit : (sec.) or (mGON) or (mMIL)

Standard Deviation
=
1.23 sec.
–––

14 Press the [F2](↓) key.
Standard Deviations of each coordinate will be
shown.
Unit : (mm) or (inch)
The display will be changed alternately by
pressing [F2](↓) or (↑) key.

15 Press the [F4](NEZ) key.
Coordinate data of the new point will be shown.

16 Press the [F3](YES) key. *7)
The new point data will be stored into the
coordinate data file and the value of occupied
coordinate data will change to that of the
calculated NEW POINT.

↓

–––

NEZ

1.23
1.23
1.23
–––

mm
mm
mm
NEZ

[F2]

SD(n) :
SD(e) :
SD(z) :
–––
↑

[F4]

N :
E :
Z :
>REC ?

[F3]

NEW POINT
F1:SIDE SHOT
F2:RESECTION

65.432 m
876.543 m
1.234 m
[YES][NO]

The display returns to new point menu.
*1)
*2)
*3)
*4)

Refer to Section 2.6 “How to Enter Alphanumeric characters”.
When there is no need to memorize the new point data, press the [F3](SKP) key.
To enter the known point coordinate data by direct key inputting, press the [F3](NEZ) key.
RESIDUAL ERROR;
dHD (Horizontal distance between two known points) =Measured value – Calculated value
dZ=(Z coordinate of the new point calculated from known point A) – (Z coordinate of the new point
calculated from known point B)
*5) [F1:USE LAST DATA]; RESIDUAL ERROR is calculated with GRID FACTOR already set.
[F2:CALC MEAS.DATA]; RESIDUAL ERROR is calculated without GRID FACTOR already set. In this
case, new GRID FACTOR is calculated from measured data and reset."
•To see the GRID FACTOR value, press the [F3](G.F.) key.
*6) In case that the all points are measured by angle measurement only, the following display will be shown.
You can select Z coordinate calculation.

CALC. Z COORD.
F1:YES
F2:NO

F1(YES) :
F2(NO) :

:N,E,Z coordinates will be calculated with measured angle data.
:N and E coordinates will be calculated with measured horizontal angle data. Z coordinate
would not be calculated.
(Z coordinate value =0.000m)

When the distance measurement is done even one point, Z coordinate will be calculated as a mean
value of relative distance (vertical distance data).
*7) The display shows ">SET ?" when [F3](SKP) key pressed in step 4. In this case, the new point data is
not stored into the coordinate data file, only the value of occupied coordinate data changes to that of the
calculated NEW POINT.

8-15

8 LAYOUT

● Viewing PT# LIST
You can see the PT# List and enter the data from the List, also you can see coordinate data of a point.
[Example: Executing Layout Mode]
Operating procedure

Operation

Display

LAYOUT
PT#:
INPUT LIST NEZ ENTER
1 While executing the LAYOUT mode, press the

[TOPCON ]
→ DATA-01
DATA-02
VIEW SRCH ––– ENTER

[F2]

[F2](LIST) key.
The arrow(→) indicates selected data.

2 By pressing the following keys, the list will increase
or decrease.
[ ]or[ ]: Increasing or Decreasing one by
one.
[ ]or[ ]
:By ten Increasing or Decreasing.

3 To show the coordinate of the selected data, press
the [F1](VIEW) key.

[
[

]or[
]or[

[F1]

It is still possible to scroll the PT# data by pressing
[[ ]or[ ] key.

4 Press the [ESC] key.

[ESC]

The display returns to the List.

5 Press the [F4] (ENTER) key.

[F4]

The selected point number is set as PT#.

],
]

DATA-49
→ DATA-50
DATA-51
VIEW SRCH –––

PT#DATA-50
N
100.234 m
E
12.345 m
Z
1.678 m
DATA-49
→ DATA-50
DATA-51
VIEW SRCH –––

ENTER

REFLECTOR HEIGHT
INPUT
R.HT :
0.000 m
INPUT ––– ––– ENTER

● The operation of [F2]( SRCH) is same as the "SEARCH" in the MEMORY MANAGER MODE.
For more information, refer to Chapter 9 “MEMORY MANAGER MODE”.

8-16

ENTER

9 MEMORY MANAGER MODE

9

MEMORY MANAGER MODE
The following items for internal memory are available in this mode.
1) FILE STATUS
:
Checking the number of stored data / Remaining internal memory
capacity.
2) SEARCH
:
Searching the recorded data.
3) FILE MAINTAN.
:
Deleting files / Editing file name
4) COORD. INPUT
:
Inputting coordinate data into Coord. data file.
5) DELETE COORD. :
Deleting coordinate data from Coord. data file.
6) PCODE INPUT
:
Inputting PCODE DATA into PCODE Library
7) DATA TRANSFER :
Sending measured data or coordinate data or PCODE Library data /
Uploading coordinate data or PCODE Library data / Setting
communication parameters
8) INITIALIZE
:
Initializing internal memory.
● Memory manager menu operation
By pressing the [MENU] key, the instrument will be in MENU 1/3 mode.
Press the [F3](MEMORY MGR. ) key, the menu of MEMORY MGR. 1/3 will be shown.
Normal measurement mode
[ESC]

[MENU]

MENU
1/3
F1:DATA COLLECT
F2:LAYOUT
F3:MEMORY MGR. P↓
[F3]

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN.P↓

MEMORY MGR. MENU 1/3

[F4]

MEMORY MGR.
2/3 MEMORY MGR. MENU 2/3
F1:COORD. INPUT
F2:DELETE COORD
F3:PCODE INPUT P↓
[F4]

MEMORY MGR.
3/3 MEMORY MGR. MENU 3/3
F1:DATA TRANSFER
F2:INITIALIZE
P↓
[F4]

9-1

9 MEMORY MANAGER MODE

9.1 Display Internal Memory Status
This mode is used to check the internal memory status.
Operating procedure

1 Press the [F3](MEMORY MGR. ) key from the
menu 1/3.

2 Press the [F1](FILE STATUS) key.

Operation

Display

[F3]

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN P↓

[F1]

FILE STATUS
1/2
MEAS. FILE : 3
COORD. FILE: 6
[...........] P↓

The total number of stored measured data files
and coordinate l files are shown.

Remaining memory capacity

3 Press the [F4](P↓) key.

[F4]

The total number of stored measured data and
coordinate data in all files are shown.*1)

DATA STATUS
2/2
MEAS. DATA :0100
COORD. DATA:0050
[...........] P↓

*1) Each coordinate file has one extra data for working area.
● The FILE/DATA STATUS display will change alternately by pressing [F4]( P↓) key.
● To return to MEMORY MGR. menu press the [ESC] key.

9-2

9 MEMORY MANAGER MODE

9.2 Searching Data
This mode is used to search the recorded file data in the DATA COLLECT or LAYOUT mode.
The following 3 search methods in each type of files can be selected.
1: First data search
2: Last data search
3: Point number search(MEAS.DATA, COORD.DATA)
Number search (PCODE LIB.)
MEAS. DATA
: Measured data in the data collect mode.
COORD. DATA : Coordinate data for layout, control points and new point data measured in the
layout mode.
PCODE LIB.
: The data which was registered with a number from 1 to 50 in Point code library.
Point name (PT#, BS#) , ID, PCODE and Height data (INS.HT, R.HT) can be corrected in the searching
mode.
Measured value can not be corrected.

9.2.1 Measured Data Searching
Example :Point number searching
Operating procedure

Operation

1 Press the [F3](MEMORY MGR.) key from the

Display

[F3]

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN P↓

2 Press the [F2](SEARCH) key.

[F2]

SEARCH
F1:MEAS. DATA
F2:COORD. DATA
F3:PCODE LIB.

3 Press the [F1](MEAS. DATA) key.

[F1]

SELECT A FILE
FN:_________

menu 1/3.

INPUT LIST ––– ENTER
4 Press the [F1](INPUT) key and enter File Name.
Press the [F4](ENT) key. *1),2)

5 Press the [F3](PT# DATA) key.

[F1]
Enter FN
[F4]

[F3]

MEAS. DATA SEARCH
F1:FIRST DATA
F2:LAST DATA
F3:PT# DATA
PT# DATA SEARCH
PT#:_________
INPUT –––

6 Press the [F1](INPUT) key and enter PT#.

[F1]
Enter PT#
[F4]

Press the [F4](ENT) key. *1)

7 Press the [F4](↓) key to scroll data for selected

[F4]

point.

*1)
*2)
●
●
●

Refer to Section 2.6 "How to enter alphanumeric characters".
To show the file list, press the [F2](LIST) key.
" " represents data shown on the display is the stored data.
Press the [ ]or[ ] key to scroll to next or previous point.
To search MEAS. DATA of the same point number, press[ ]or[

9-3

––– ENTER

PT#TOP-104
1/2
V 
98°36'20"
HR 160°40'20"
0°00'00"
↓
TILT
PT#TOP-104
PCODE
R.HT 1.200 m
EDIT

] key.

2/2

↓

9 MEMORY MANAGER MODE

● To edit the data in searching mode
Point name (PT#, BS#) , ID, PCODE and Height data (INS.HT, R.HT) can be corrected in the searching
mode.
Measured value can not be corrected.
Operating procedure

Operation

Display

PT#TOP-104
2/2
PCODE
R.HT
1.000 m
EDIT
↓
1 Press the [F1](EDIT) key from last page of

[F1]

displayed data.

2 Select the item to correct by pressing [

]or[

]

key.

3 Press the [F1](INPUT) key and enter data. *1)

[

]or[

]

[F1]
Enter Data
[F4]
[F4]

Press the [F4](ENT) key.

4 Press the [F4](ENTER) key.
5 Press the [F3](YES) key .

[F3]

PT#
PCODE
R.HT
INPUT

→TOP-104
:
:
1.000 m
––– ––– ENTER

PT#
PCODE
R.HT
INPUT

:TOP-104
:
→
1.000 m
––– ––– ENTER

PT#
→TOP-104
PCODE :
R.HT :
1.200 m
>SAVE?
[YES][NO]
PT#TOP-104
2/2
PCODE
R.HT
1.200 m
EDIT

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
● When editing, ID and PCODE are not linked with PCODE LIBRARY.
● Even though the height data (INS.HT, R.HT) are corrected, the measured value can not be corrected.

9-4

9 MEMORY MANAGER MODE

9.2.2 Coordinate Data Searching
Example searching :Point number searching
Operating procedure

Operation

Display

[F3]

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN P↓

2 Press the [F2](SEARCH) key.

[F2]

SEARCH
F1:MEAS. DATA
F2:COORD. DATA
F3:PCODE LIB.

3 Press the [F2](COORD. DATA) key.

[F2]

SELECT A FILE
FN:_________

1 Press the [F3](MEMORY MGR.) key from the
menu 1/3.

INPUT LIST ––– ENTER
4 Press the [F1](INPUT) key and enter File Name.
Press the [F4](ENT) key. *1)

5 Press the [F3](PT# DATA) key.

COORD. DATA SEARCH
F1:FIRST DATA
F2:LAST DATA
F3:PT# DATA

[F1]
Enter FN
[F4]

PT# DATA SEARCH
PT#:_________

[F3]

INPUT –––
6 Press the [F1](INPUT) key and enter PT#.

*1)
●
●
●

PT#TOP-104
N  100.234 m
E 
12.345 m
Z 
1.678 m

[F1]
Enter PT#
[F4]

Press the [F4](ENT) key. *1)

Refer to Section 2.6 “How to Enter Alphanumeric characters”.
" " represents data shown on the display is the stored data.
Press the [ ] or [ ] key to scroll to next or previous point.
To search COORD. DATA of the same point number, press the [

9-5

––– ENTER

]or[

] key.

9 MEMORY MANAGER MODE

9.2.3 PCODE LIBRARY Searching
Example searching :Number searching
Operating procedure

Operation

Display

[F3]

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN P↓

2 Press the [F2](SEARCH) key.

[F2]

SEARCH
F1:MEAS. DATA
F2:COORD. DATA
F3:PCODE LIB.

3 Press the [F3](PCODE LIB.) key.

[F3]

PCODE DATA SEARCH
F1:FIRST DATA
F2:LAST DATA
F3:No. SEARCH

4 Press the [F3](No. SEARCH) key.

[F3]

PCODE No. SEARCH
No.:

1 Press the [F3](MEMORY MGR.) key from the
menu 1/3.

INPUT –––
5 Press the [F1](INPUT) key and enter

[F1]
Enter PT#
[F4]

number.Press the [F4](ENT) key. *1)
The number and linked data will be shown. *2)

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
● Press the [ ] or [ ] key to scroll to next or PCODE data.
*2) To correct the PCODE data , press the [F1](EDIT) key.
To delete the PCODE data, press the [F3](CLR) key.

9-6

––– ENTER

011:NAKADAI
→012:HILLTOP
013:ITABASH
EDIT ––– CLR

–––

9 MEMORY MANAGER MODE

9.3 FILE MAINTENANCE
In this mode, the following items are available.
Renaming file name / Searching data in a file / Deleting files
● FILE MAINTAN. menu

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN. P↓
[ESC]

[F3]

@AMIDAT
→ *MEASD1
&COORD1
REN SRCH

/C0123
/M0123
/C0056
DEL –––
Deleting file
Searching data in a file

Renaming file name
Pressing [F3](FILE MAINTAN.) key from MEMORY MANAGER menu 1/3, file list will be shown.
• File discrimination mark (*,@,&)
File discrimination mark (*,@,&) placed before file name indicates the file status.
For measured data file
“ * ” :selected file for DATA COLLECT mode.
For coordinate data file
“ * ” :selected file for LAYOUT mode.
“ @ ” :selected coordinate file for DATA COLLECT mode.
“ & ” :selected coordinate file for both LAYOUT and DATA COLLECT mode.
• Data discrimination character (M, C)
Data discrimination character (M, C) placed before four figures indicates the type of data.
“ M ” :Measured data
“ C ” :Coordinate data.
• Four figures means the total number of data in the file.
(Coordinate data file has an extra data for working.)
Press the [ ] or [ ] key to scroll to next file.

9-7

9 MEMORY MANAGER MODE

9.3.1 Rename a File
An existing file in internal memory can be renamed.
Operating procedure

Operation

1 Press the [F3](FILE MAINTAN.) key from the

[F3]

Memory manager menu 1/3.

2 Select a file by pressing [

]or[

Display

] key.

[

3 Press the [F1](REN) key.

]or[

]

Enter FN
[F4]

Press the [F4](ENT) key. *1)

/M0123
/C0056
DEL –––

MEASD1
→COORD1
COORD2
REN SRCH

/M0123
/C0056
/C0098
DEL –––

MEASD1
/M0123
=COORD1
/C0056
COORD1
/C0098
1234 5678 90.– [ENT]

[F1]

4 Enter new file name.

→MEASD1
COORD1
REN SRCH

MEASD1
→COORD5
COORD1
REN SRCH

/M0123
/C0056
/C0098
DEL –––

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
Existing file name can not be available.
To return to the FILE MAINTAN. Menu , press the [ESC] key.

9.3.2 Searching Data in a File
An existing file in internal memory can be searched.
Operating procedure

Operation

1 Press the [F3](FILE MAINTAN.) key from the

[F3]

Memory manager menu 1/3.

2 Select a file to search by pressing [

]or[

Display

] key.

3 Press the [F2](SRCH) key.

[

]or[

]

[F2]

4 Select searching method by pressing the [F1] to
[F3] key. *1)

→MEASD1
COORD1
REN SRCH

/M0123
/C0056
DEL –––

MEASD1
→COORD1
COORD2
REN SRCH

/M0123
/C0056
/C0098
DEL –––

SEARCH
[COORD1 ]
F1:FIRST DATA
F2:LAST DATA
F3:PT# DATA

[F1] to [F3]

*1) Because procedures from next are same as procedures of Section 9.2 "Searching Data", refer to
Section 9.2 “Searching Data”
To return to the FILE MAINTAN. Menu , press the [ESC] key.

9-8

9 MEMORY MANAGER MODE

9.3.3 Deleting a File
This mode erases a file from internal memory. Only one file can be erased at a time.
Operating procedure

Operation

1 Press the [F3](FILE MAINTAN.) key from the

[F3]

Memory manager menu 1/3.

2 Select a file to delete by pressing [

]or[

Display

] key.

[

]or[

]

→MEASD1
COORD1
REN SRCH

/M0123
/C0056
DEL –––

MEASD1
→COORD1
COORD2
REN SRCH

/M0123
/C0056
/C0098
DEL –––

3 Press the [F3](DEL) key.

[F3]

MEASD1
→COORD1
COORD2
>DELETE?

/M0123
/C0056
/C0098
[NO][YES]

4 Confirm the deleting, and press the [F4](YES) key.

[F4]

MEASD1
→COORD2
COORD3
REN SRCH

/M0123
/C0098
/C0321
DEL –––

● To return to the FILE MAINTAN. Menu , press the [ESC] key.

9-9

9 MEMORY MANAGER MODE

9.4 Coordinate Data Direct Key Input
Coordinate data for the layout point or control point can be input directly from the keyboard. This data
can be stored into a file in the internal memory.
Operating procedure

Operation

Display

[F3]

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN P↓

2 Press the [F4](P↓) key.

[F4]

MEMORY MGR.
2/3
F1:COORD. INPUT
F2:DELETE COORD.
F3:PCODE INPUT
P↓

3 Press the [F1](COORD. INPUT) key.

[F1]

SELECT A FILE
FN:_________

1 Press the [F3](MEMORY MGR.) key from the
menu 1/3.

INPUT LIST ––– ENTER
4 Press the [F1](INPUT) key and enter File Name
you want to input.
Press the [F4](ENT) key. *1)

[F1]
Enter FN
[F4]

COORD. DATA INPUT
PT#:_________
INPUT –––

5 Press the [F1](INPUT) key and enter PT#.

[F1]
Enter PT#
[F4]

Press the [F4](ENT) key. *1)

6 Enter coordinate data in the same way.
Next input display is shown, point number (PT#) is
automatically incremented.

[F1]
Enter COORD.
[F4]

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.

9-10

––– ENTER

N→
100.234
E:
12.345
Z:
1.678
INPUT ––– –––

m
m
m
ENTER

COORD. DATA INPUT
PT#:TOPCON-102
INPUT –––

––– ENTER

9 MEMORY MANAGER MODE

9.5 Delete a Coordinate Data from a File
Coordinate data in a file can be erased.
Operating procedure

Operation

Display

[F3]

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN P↓

2 Press the [F4](P↓) key.

[F4]

MEMORY MGR.
2/3
F1:COORD. INPUT
F2:DELETE COORD.
F3:PCODE INPUT
P↓

3 Press the [F2](DELETE COORD.) key.

[F2]

SELECT A FILE
FN:_________

1 Press the [F3](MEMORY MGR.) key from the
menu 1/3.

INPUT LIST ––– ENTER
4 Press the [F1](INPUT) key and enter File Name.
Press the [F4](ENT) key. *1)

[F1]
Enter FN
[F4]

DELETE COORD.
PT#:_________
INPUT LIST ––– ENTER

5 Press the [F1](INPUT) key and enter PT#.

[F1]
Enter PT#
[F4]

Press the [F4](ENT) key. *1)

6 Confirm the data and press the [F3](YES) key.

[F3]

Deleting starts.
The display will return to the previous display.

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.

9-11

N:
100.234 m
E:
12.345 m
Z:
1.678 m
>DELETE? [YES][NO]

9 MEMORY MANAGER MODE

9.6 Editing PCODE Library
PCODE data can be entered into PCODE Library in this mode.
A PCODE is linked with a number of 1 to 50
PCODE can be also edited in DATA COLLECT menu 2/3 in the same way.
Operating procedure

Operation

Display

[F3]

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN. P↓

2 Press the [F4](P↓) key.

[F4]

MEMORY MGR.
2/3
F1:COORD. INPUT
F2:DELETE COORD.
F3:PCODE INPUT
P↓

3 Press the [F3](PCODE INPUT) key.

[F3]

1 Press the [F3](MEMORY MGR. ) key from the
menu 1/3.

4 By pressing the following keys, the list will increase
or decrease.
[ ]or[ ] :Increasing or Decreasing one by one
[ ]or[ ] :By ten Increasing or Decreasing.

5 Press the [F1](EDIT) key.

[
[

]or[
]or[

],
]

[F1]

6 Enter PCODE and press the [F4](ENT) key. *1)

Enter PCODE
[F4]

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.

9-12

→001:TOPCON
002:TOKYO
EDIT –––
CLR

–––

011:URAH
→ 012:AMIDAT
013:HILLTO
EDIT –––
CLR

–––

011:URAH
→ 012=AMIDAT
013:HILLTO
1234 5678 90.- [ENT]
011:URAH
→ 012:AMISUN
013:HILLTO
EDIT –––
CLR

–––

9 MEMORY MANAGER MODE

9.7 Data Communications
You can send a data file stored in the internal memory to a computer directly. Also, you can directly load
a coordinate data file and PCODE Library data to the internal memory from the computer.

9.7.1 Sending Data
Example: Sending a Measured data file
Operating procedure

Operation

Display

[F3]

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN P↓

2 Press the [F4](P↓) key twice.

[F4]
[F4]

MEMORY MGR.
3/3
F1:DATA TRANSFER
F2:INITIALIZE
P↓

3 Press the [F1](DATA TRANSFER) key .

[F1]

DATA TRANSFER
F1:SEND DATA
F2:LOAD DATA
F3:COMM. PARAMETERS

4 Press the [F1] key.

[F1]

SEND DATA
F1:MEAS. DATA
F2:COORD. DATA
F3:PCODE DATA

5 Select the type of data to send by pressing [F1]-

[F1]

SELECT A FILE
FN:_________

1 Press the [F3](MEMORY MGR.) key from the
menu 1/3.

[F3] key.
Example : [F1](MEAS. DATA)

INPUT LIST ––– ENTER
6 Press the [F1](INPUT) key and enter File Name
you want to send. Press the [F4](ENT) key. *1),2)

7 Press the [F3](YES) key .*3)

[F3]

The sending starts.
The display will return to menu.

*1)
*2)
●
*3)

[F1]
Enter FN
[F4]

SEND MEAS. DATA
>OK ?
––– –––

[YES][NO]

SEND MEAS. DATA
< Sending Data!>
STOP

Refer to Section 2.6 “How to Enter Alphanumeric characters”.
To scroll the data, press the [ ]or[ ] key.
To show the file list, press the [F2](LIST) key.
To cancel the sending, press the [F4](STOP) key.

9-13

9 MEMORY MANAGER MODE

9.7.2 Loading Data
Coordinate data files and PCODE Library data can be loaded from PC.
Example: Loading a coordinate data file
Operating procedure

Operation

Display

[F3]

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN P↓

2 Press the [F4](P↓) key twice.

[F4]
[F4]

MEMORY MGR.
3/3
F1:DATA TRANSFER
F2:INITIALIZE
P↓

3 Press the [F1](DATA TRANSFER) key .

[F1]

DATA TRANSFER
F1:SEND DATA
F2:LOAD DATA
F3:COMM. PARAMETERS

4 Press the [F2] key.

[F2]

LOAD DATA
F1:COORD. DATA
F2:PCODE DATA

5 Select the type of data to load by pressing

[F1]

COORD. FILE NAME
FN:_________

1 Press the [F3](MEMORY MGR.) key from the
menu 1/3.

[F1] or [F2] key.
Example : [F1](COORD. DATA)

INPUT –––
6 Press the [F1](INPUT) key and enter New File
Name you want to receive. Press the [F4](ENT)
key. *1)

7 Press the [F3](YES) key.*2)

[F1]
Enter FN
[F4]

[F3]

The loading starts.
The display will return to menu.

––– ENTER

LOAD COORD. DATA
>OK ?
––– –––

[YES][NO]

LOAD COORD. DATA
< Loading Data!>
STOP

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
*2) To cancel the loading, press the [F4](STOP) key.

9-14

9 MEMORY MANAGER MODE

9.7.3 Setting Parameter of Data Communications
● Items of the Parameter
Item

Selecting Item

Contents

Setting Protocol
[ACK/NAK] or [ONE WAY] communication

[ACK/NAK],
[ONE WAY]

F1: Protocol

300, 600, 1200, 2400,
4800, 9600

F2: Baud rate
F3: Char. / Parity

[7/EVEN], [7/ODD],
[8/NON]

F1: Stop Bits

1, 2

● Example Setting

Setting transfer speed
300/600/1200/2400/4800/9600 baud
Setting data length and parity.
[7bit, even], [7bit, odd], [8bit,none]
Setting Stop 1 bit or 2bits

Baud rate : 4800

Operating procedure

Operation

Display

[F3]

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN P↓

2 Press the [F4](P↓) key twice.

[F4]
[F4]

MEMORY MGR.
3/3
F1:DATA TRANSFER
F2:INITIALIZE
P↓

3 Press the [F1](DATA TRANSFER) key .

[F1]

DATA TRANSFER
F1:SEND DATA
F2:LOAD DATA
F3:COMM. PARAMETERS

4 Press the [F3](COMM. PARAMETERS) key.

[F3]

COMM. PARAMETERS 1/2
F1:PROTOCOL
F2:BAUD RATE
F3:CHAR./PARITY P↓

5 Press the [F2](BAUD RATE) key.

[F2]

BAUD RATE
[ 300]
600
2400
4800

1 Press the [F3](MEMORY MGR.) key from the
menu 1/3.

[

] indicates present setting.

6 Select the items by pressing [
and [

]or[

],[

]

]
]

BAUD RATE
300
600 1200
2400 [4800] 9600
ENTER

[F4]

COMM. PARAMETERS 1/2
F1:PROTOCOL
F2:BAUD RATE
F3:CHAR./PARITY P↓

[
[

] keys. *1)

7 Press the [F4](ENTER) key.

*1) To cancel setting, press the [ESC] key.

9-15

1200
9600
ENTER

9 MEMORY MANAGER MODE

9.8 Initialization
This mode is used to initialize the internal memory.
Following data can be initialized.
FILE DATA :All files of measuring data and coordinate data
PCODE DATA: PCODE LIST
ALL DATA: FILE DATA and PCODE DATA
Note that the following data are not initialized even if initialization is executed.
: Coordinates of the instrument, Instrument height and Reflector height.
Example Initialization: ALL DATA ( FILE data and PCODE data)
Operating procedure

Operation

Display

[F3]

MEMORY MGR.
1/3
F1:FILE STATUS
F2:SEARCH
F3:FILE MAINTAN. P↓

2 Press the [F4](P↓) key twice.

[F4]
[F4]

MEMORY MGR.
3/3
F1:DATA TRANSFER
F2:INITIALIZE
P↓

3 Press the [F2](INITIALIZE) key.

[F2]

INITIALIZE
F1:FILE AREA
F2:PCODE LIST
F3:ALL DATA

4 Select the data to initialize by pressing one of the

[F3]

INITIALIZE DATA
ERASE ALL DATA !

1 Press the [F3](MEMORY MGR.) key from the
menu 1/3.

[F1] to [F3] key.
Example : [F3](ALL DATA)

>OK ?
5 Confirm the erase data, press the [F4](YES) key.
Initializing will start.

[F4]

[NO][YES]

INITIALIZE DATA


The display returns to menu.

MEMORY MGR.
3/3
F1:DATA TRANSFER
F2:INITIALIZE
P↓

9-16

10 SET AUDIO MODE

10

SET AUDIO MODE
The light acceptance quantity level for the EDM (SIGNAL), the atmospheric correction value (PPM),
correction value of prism constant (PSM) and correction value of non-prism constant (NPM) are
displayed in this mode.
When reflected light from the prism is received a buzzer sounds. This function is good for easy
collimation when the target is difficult to find.
Operating procedure

Operation

Display

distance measurement mode or page 3 in the
coordinate measurement.

[F4]

HR: 120°30'40"
HD* 123.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓
OFSET S.O S/A P2↓

2 Press the [F3](S/A) key to change to set audio

[F3]

1 Press the [F4] key to get the soft key page 2 in the

mode.
The display indicates correction value of prism
constant (PSM), non-prism constant (NPM)
atmospheric correction (PPM) and reflection light
level (SIGNAL).

PSM:0.0
PPM
NPM:0.0
SIGNAL:[❙ ❙ ❙ ❙ ❙]
PRISM PPM T-P

● When receiving reflected light, buzzer sounds.
It is possible to stop the sound, see Chapter 16 “SELECTING MODE” .
● The [F1] to [F3] keys are used for setting atmospheric correction and prism constant.
● To return to normal measuring mode, press the [ESC] key.

10-1

0.0

–––

11 SETTING THE PRISM / NON-PRISM CONSTANT VALUE

11

SETTING THE PRISM / NON-PRISM CONSTANT
VALUE
The prism constant value of Topcon is set to zero. When using prisms other than Topcon’s, it is
necessary to set the prism constant correction value of that specific prism.
Once you set the correction value for prism constant, it is retained after power is OFF.
Note: Confirm the non-prism constant value is set at 0 when measuring target such as walls in
Non-prism mode.
Operating procedure

Operation

Display

[F4]

HR: 120°30'40"
HD* 123.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓
OFSET S.O S/A P2↓

1 Press the [F4] key to get the soft key page 2 in the
distance measurement mode or page 3 in the
coordinate measurement.

2 Press the [F3](S/A).

[F3]

3 Press the [F1](PRISM) key.

4 Select prism or non-prism constant correction
value by pressing the [▼] or [▲] key.
PRISM: Prism Constant Correction Value
N-PSM: Non-prism Constant Correction Value

5 Input the Prism constant correction value. *1)
The display returns to set audio mode.

0.0

–––

[F1]

PRISM CONST. SET
PRISM >0.0 mm
N-PSM :0.0 mm
INPUT ––– ––– ENTER

[▼] or [▲]

PRISM CONST. SET
PRISM :0.0 mm
N-PSM >0.0 mm
INPUT ––– ––– ENTER

[F1]
Enter data
[F4]

PSM:14.0
PPM
NPM:0.0
SIGNAL:[❙ ❙ ❙ ❙ ❙]
PRISM PPM T-P

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
● Input range : –99.9mm to +99.9mm,0.1mm step

11-1

PSM:0.0
PPM
NPM:0.0
SIGNAL:[❙ ❙ ❙ ❙ ❙]
PRISM PPM T-P

0.0

–––

12 SETTING ATMOSPHERIC CORRECTION

12

SETTING ATMOSPHERIC CORRECTION
The velocity of light through air is not constant and depends on the atmospheric temperature and
pressure. The atmospheric correction system of this instrument corrects automatically when the
correction value is set. 15°C/59°F, and 1013.25hPa / 760mmHg / 29.9 inHg is as a standard value for
0ppm in this instrument. The values are kept in the memory even after power is OFF.

12.1 Calculation of Atmospheric Correction
The followings are the correction formulas. Unit; meter
Ka: Atmospheric correction value

–6
×P 
P : Ambient atmospheric pressure (hPa)
Ka =  278.88 – 79.307
-------------------------------  × 10
273.15 + t 

t : Ambient Atmospheric temperature (°C)
The distance L (m) after atmospheric correction is obtained as follow.
L = l (1+Ka)
l :Measured distance when atmospheric
correction is not set.
Example : In case Temperature +20°C, Air pressure 847hPa, l =1000 m

× 847
Ka =  278.88 – 79.307
----------------------------------------  × 10




–6

273.15 + 20 



-6

+ 50×10 (50 ppm)
L = 1000 (1+50×10-6) = 1000.050 m

12.2 Setting of Atmospheric Correction Value
● How to Set Temperature and Pressure Value Directly
Measure the temperature and air pressure surrounding the instrument beforehand.
Example : Temperature: +26°C, Pressure:1017 hPa
Operating procedure

Operation

1 Press the [F4] key to get the soft key page 2 in the
distance measurement mode or page 3 in the
coordinate measurement.

[F4]

2 Press the [F3](S/A) key to set Set Audio Mode

[F3]

from distance or coordinate measurement mode.

3 Press the [F3](T-P) key.

4 Input Temp.value and Pressure value.*1)
Mode returns to Set Audio mode.

Display

HR: 120°30'40"
HD* 123.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓
OFSET S.O S/A P2↓
SET AUDIO MODE
PSM:0.0
PPM
SIGNAL:[❙ ❙ ❙ ❙ ❙]
PRISM PPM T-P

–––

[F3]

TEMP.
TEMP.
PRES.
INPUT

& PRES. SET
→
15.0 °C
: 1013.2 hPa
––– ––– ENTER

Enter Temp.
Enter Pres.

TEMP.
TEMP.
PRES.
INPUT

& PRES. SET
:
26.0 °C
: 1017.0 hPa
––– ––– ENTER

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
● Range : Temp. –30 to +60°C (0.1°C step) or –22 to +140°F (0.1°F step)
Pres. 560 to 1066.0hPa (0.1hPa step) ,420 to 800mmHg (0.1mmHg step) or
16.5 to 31.5inHg (0.1inHg step)

12-1

0.0

12 SETTING ATMOSPHERIC CORRECTION
● How to Set the Atmospheric Correction Value Directly
Measure the temperature and air pressure to find atmospheric correction value (PPM) from the chart or
correction formula.
Operating procedure

Operation

1 Press the [F4] key to get the soft key page 2 in the
distance measurement mode or page 3 in the
coordinate measurement.

[F4]

2 Press the [F3](S/A) key to set Set Audio Mode

[F3]

from distance or coordinate measurement mode.

3 Press the [F2](PPM) key.

[F2]

Current setting value is displayed.

Display

HR: 120°30'40"
HD* 123.456 m
VD:
5.678 m
MEAS MODE NP/P P1↓
OFSET S.O S/A P2↓
PSM:0.0
PPM
NPM:0.0
SIGNAL:[❙ ❙ ❙ ❙ ❙]
PRISM PPM T-P
PPM SET
PPM :

0.0

0.0

–––

ppm

INPUT ––– ––– ENTER
4 Enter atmospheric correction value. *1)

[F1]
Enter Data
[F4]

Mode returns to Set Audio mode.

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
● Input range : –999.9ppm to +999.9ppm,0.1ppm step

12-2

12 SETTING ATMOSPHERIC CORRECTION
Atmospheric Correction Chart (For your reference)
The atmospheric correction value is obtained easily with the atmospheric correction chart. Find the
measured temperature in horizontal, and pressure in vertical on the chart.
Read the value from the diagonal line, which represents the required atmospheric correction value.
Example:
The measured temperature is +26°C
The measured pressure is 1013 hPa
There fore,
The correction value is +10ppm

12-3

12 SETTING ATMOSPHERIC CORRECTION

12-4

12 SETTING ATMOSPHERIC CORRECTION

12-5

13 CORRECTION FOR REFRACTION AND EARTH CURVATURE

13

CORRECTION FOR REFRACTION AND EARTH
CURVATURE
The instrument measures distance, taking into account correction for refraction and earth curvature.

13.1 Distance Calculation Formula
Distance Calculation Formula; with correction for refraction and earth curvature taken into account.
Follow the Formula below for converting horizontal and vertical distances.

Horizontal distance D = AC(α) or BE(β)
Vertical distance Z =BC(α) or EA(β)
D = L{cosα–(2θ – γ ) sinα}
Z = L{sinα+(θ – γ ) cosα}
θ = L.cosα/2R........... Earth curvature
correcting item
γ =K•Lcosα/2R....... Atmospheric
refraction
correcting item
K =0.14 or 0.2.......... Coefficient of
refraction
R =6372km.............. Radius of earth
α ( or β)................... Altitude angle
L .............................. Slope distance

Radius of earth
R＝6372Km

● The conversion formula for horizontal and vertical distances is as follows when correction for
refraction and earth curvature is not applied.
D=L•cosα
Z=L•sinα
Note: The coefficient of the instrument has been set at 0.14 before shipment (K=0.14).
if the "K" value is to be changed, refer to 16 “SELECTING MODE”.

13-1

14 POWER SOURCE AND CHARGING

14

POWER SOURCE AND CHARGING

14.1 On-board Battery BT-52QA
● To remove
1 Push the battery locking lever and pull out the BT-52QA on-board battery as shown below.

● To charge

Battery

Outlet

BT-52QA

Charger
BC-27BR/CR

1
2

Plug the charger into the outlet.
Connect the charger connector to the battery, then charging will start.
Preparatory charging *1) will start. (The red lamp of the charger will blink.)
When the preparatory charging is completed, the charging status will be switched to quick charging
automatically. (The red lamp of the charger will light.)
3 Charging will take approximately 1.8 hours. (The green lamp will illuminate.)
4 After charging, remove the battery from the charger.
5 Remove the charger from the outlet.
● To refresh *2)
Press the refresh switch after starting charging above steps (1, 2 ), then discharging will start. Confirm
the yellow lamp illuminates.
After discharging is finished, charging will start automatically.
Time discharging battery charged fully is approximately 8 hours.
*1) About Preparatory charging
Before quick charging, the battery is charged using small amount current to measure its
temperature and voltage.
When the temperature and voltage is within a range, the charging status will change to quick
charging.
*2) About refreshing
Rechargeable battery can be used repeatedly by charging. If charging is repeated by the state that
capacity of the battery still left, operating time of the battery may shorten. In this case, the voltage of
the battery will be recovered by refreshing and operating time can be improved.
The lamp of charger
Red blinking : Preparatory charging /Waiting until internal temperature falls
Red ON
: Charging
Red lamp will illuminate during charging.
Green ON
: Charging completed
Green lamp will illuminate after completely charging.
Yellow ON
: Discharging
Yellow lamp will illuminate and discharging will start by pressing the refresh
(discharge) switch.
Red quick flashing : Abnormal outbreaks
Red lamp will flash when the battery life is over or the battery is broken down.
Replace the battery to new one.

14-1

14 POWER SOURCE AND CHARGING
● To install
Place the base of the on-board battery into the GPT-2000 series, push the on-board battery toward
the instrument side till the battery clicks into position.
● Do not charge or discharge continuously, otherwise the battery and the charger may be
deteriorated. If charging or discharging is necessary, use the charger after stopping charge for
approximately 30 minutes.
● Do not charge the battery or discharge the battery in right after the battery is charged, it causes
deterioration of the battery in rare cases.
● The charger may develop heat while charging, there is no problem of it.

Note: 1
2
3
4
5

6

Recharging should take place in a room with an ambient temperature range of 10°C to
40°C (50°F to 104°F).
If charging is done at high temperature, charging time of the battery may take longer.
Exceeding the specified charging time may shorten the life of the battery and should be
avoided if possible.
The battery source will discharge when stored and should be checked before using with
instrument .
Be sure to charge as stored battery source every 3 or 4 months and store in a place at
30°C and below when it will not used for a long period.
If you allow the battery to be completely discharged, it will have an effect on the overall
performance for proper charging in the future.
Keep batteries charged at all times.
For further information, see APPENDIX 2 “Precaution when Charging or Storing Batteries”.

14-2

15 DETACH/ATTACH OF TRIBRACH

15

DETACH/ATTACH OF TRIBRACH
The instrument is easily detached or attached to the tribrach, with a tribrach locking lever loosened or
tightened for this purpose.
● Detachment
1 Loosen the tribrach locking lever, by revolving it 180° or 200gon in the counterclockwise direction
(which will point the triangle mark upwards).
2 Grip the carrying handle firmly with one hand while holding the tribrach with the other. Then lift the
instrument straight upwards and off.
● Attachment
1 Hold the instrument by the carrying handle, with one hand, and carefully lower it on top of the
tribrach while, at the same time, coinciding the alignment piece with the tribrach alignment groove
on the instrument and tribrach respectively.
2 When fully seated, revolve the tribrach locking lever 180° or 200gon clockwise ( which will point the
triangle mark downwards again).
3 Confirm that the upper instrument section is securely attached.

Alignment piece
Alignment groove

Securing screw

Tribrach locking lever

● Locking the Tribrach Locking Lever
The tribrach locking lever can be locked, to prevent it be accidentally removed, especially if the
upper instrument section is not being detached very often. Simply tighten the securing screw on the
locking lever with the accessory screwdriver, found in the case.

15-1

16 SELECTING MODE

16

SELECTING MODE

16.1 Items of the Selecting Mode
The following modes are available.
Menu

1:
UNIT SET

2:
MODE
SET

Items

Selecting item

Display

TEMP. &
PRES.

°C / °F
hPa / mmHg /
inHg

Select the unit of temperature for atmospheric
correction. Select the unit of air pressure for
atmospheric correction .

ANGLE

DEG(360°) /
GON(400G) /
MIL(6400M)

Choose degree, gon or mil unit for measuring
angle.

DISTANCE

METER / FEET /
FEET and inch

Choose measuring unit for distance meter , feet
or feet and inch

FEET

US SURVEY /
INTERNATIONAL

Select the meter / feet conversion factor.
US SURVEY feet
1m=3.280833333333333 ft.
INTERNATIONAL feet
1m=3.280839895013123 ft.

POWER ON
MODE

ANGLE MEAS./
DISTANCE MEAS.

Select to set the measurement mode for angle or
distance when the power is turned on.

FINE/CRS/
TRK

FINE / COARSE /
TRACK

Select Fine /Coarse / Tracking mode in distance
measurement mode, when the power is turned
on.

HD&VD/SD

HD&VD /SD

Specify which is displayed first, horizontal and
vertical distance or slope distance, when the
power is turned on.

V ANGLE
Z0/H0

Zenith 0 /
Horizontal 0

Choose the vertical angle reading from zenith or
from level.

N-TIMES /
REPEAT

N-TIMES /
REPEAT

Select the measurement mode for distance
when the power is turned on.

TIMES OF
MEAS.

0~99

Set N (number of times) for times of distance
measurement. When setting number of times as
1, it is single measurement.

NEZ / ENZ

NEZ / ENZ

Select a coordinate displaying order either NEZ
or ENZ.

HA
MEMORY

ON / OFF

Horizontal angle set can be retained after the
power is turned off.

ESC KEY
MODE

DATA COLLECT /
LAYOUT / REC /
OFF

You can select a function of the [ESC] key.
DATA COLLECT / LAYOUT: It is possible to
enter data input mode (in DATA COLLECT) or
Layout Menu from normal measuring mode
directly.
REC: While executing normal or offset
measuring, the measuring data can be output.
OFF: Returns to normal function.

COORD.
CHECK

ON / OFF

Select coordinate displaying ON or OFF when
setting a point.

16-1

16 SELECTING MODE
EDM OFF
TIME

0-99

The time when EDM is cut off from distance
measurement is completed can be changed.
This function is effective for shortening the first
time measuring time when distance
measurement is started from distance
measurement completing state.
(Default:3minutes)
0
:After completing distance measurement,
EDM is cut off immediately.
1-98 :EDM is cut off after 1~98 minutes.
99 :EDM is always switched ON.

FINE
READING

0.2/1mm

Select 1mm or 0.2mm for the minimum reading
unit in the distance mode (FINE mode).

OFFSET V
ANG

FREE / HOLD

Select Vertical angle setting in the Angle Offset
measurement mode.
FREE: Vertical angle varies by the angle of the
telescope.
HOLD: Vertical angle is fixed even if the angle of
the telescope changes.

NON-PRISM
/ PRISM

NON-PRISM /
PRISM

Select the distance measurement mode when
the power is turned ON.

L.PL OFF
TIME

1 -99

Laser plummet function can be turned off
automatically.
1-98 : Laser Plummet is cut off after 1 to 98
minutes.
99 : Manual

H-ANGLE
BUZZER

ON / OFF

Specify whether the buzzer sounds or not for
every horizontal angle 90°.

S/A BUZZER

ON / OFF

Specify whether the buzzer sounds or not in the
set audio mode.

WCORRECTI
ON

OFF / K=0.14 /
K=0.20

Set correction for refraction and earth curvature,
coefficient of refraction as ; K=0.14, K=0.20 or no
correction.

NEZ
MEMORY

ON / OFF

It is possible to retain the coordinate of
instrument point, the instrument height and prism
height after power off.

REC TYPE

REC-A / REC-B

Select REC-A or REC-B for data output.
REC-A :The measurement is made again and
this new data is output.
REC-B : The data being displayed is output.

CR,LF

ON / OFF

It is possible to output the data with carriage
return and line feed.

NEZ REC
FORM

STANDARD /
STANDARD
(12dig) /
with RAW
with RAW (12dig)

Select to record coordinates in standard or 11
digits with raw data.

MANUAL
NEZ REC

ON/ OFF

In the layout mode or data collect mode, it is
possible to record coordinates entered directly
from the keyboard.

LANGUAGE *

ENGLISH/
OTHER *

Select the displaying language.

(Only for Laser
plummet type)

3:
OTHERS
SET

16-2

16 SELECTING MODE
ACK MODE

STANDARD /
OMITTED

Set the procedure of the communication with
external device.
STANDARD:Normal procedure
OMITTED:Even though the [ACK] is omitted
from the external device, the data is
not sent again.

GRID
FACTOR

USE G.F. /
DON’T USE

Select using GRID FACTOR in calculation of
measurement data.

CUT & FILL

STANDARD /
CUT&FILL

In the layout mode, CUT & FILL can be
displayed instead of dZ.

ECHO BACK

ON / OFF

It is possible to output the data of echo back
type.

CONTRAST
MENU

ON / OFF

When the instrument is turned ON, it is possible
to display the screen which you can adjust
contrast of the display and confirm the prism
constant (PSM) and atmospheric correction
value (PPM).

*LANGUAGE selection is different in different countries.

16.2 How to Set Selecting Mode
 : Setting unit in hPa, °F, NEZ MEMORY:ON
Operating procedure

Operation

1 While pressing [F2] key, turn power ON.

[F2]
+
Power ON

Display

PARAMETERS 2
F1:UNIT SET
F2:MODE SET
F3:OTHERS SET

2 Press [F1](UNIT SET ) key.

[F1]

UNIT SET
1/2
F1:TEMP. & PRES.
F2:ANGLE
F3:DISTANCE
P↓

3 Press [F1](TEMP. & PRES.) key.

[F1]

TEMP. & PRES. UNIT
TEMP. = °C
PRES. = mmHg
°C
°F ––– ENTER

4 Press [F2](°F) key, and press

[F2]
[F4]

TEMP. & PRES. UNIT
TEMP. = °F
PRES. = mmHg
hPa mmHg inHg ENTER

[F1]
[F4]

UNIT SET
1/2
F1:TEMP. & PRES.
F2:ANGLE
F3:DISTANCE

[F4](ENTER) key.

5 Press [F1](hPa) key, and press [F4] (ENTER) key.
Returns to unit set menu.

6 Press [ESC] key.

[ESC]

Returns to PARAMETERS 2 menu.

16-3

PARAMETERS 2
F1:UNIT SET
F2:MODE SET
F3:OTHERS SET

16 SELECTING MODE

7 Press [F3](OTHERS SET) key.

[F3]

OTHERS SET
1/5
F1:H-ANGLE BUZZER
F2:S/A BUZZER
F3:W-CORRECTION P↓

8 Press [F4](P↓) key, to get the function in page 2 .

[F4]

OTHERS SET
F1:NEZ MEMORY
F2:REC TYPE
F3:CR,LF

9 Press [F1] key.

[F1]

NEZ MEMORY

2/5

P↓

[OFF]

[ON] [OFF] ––– ENTER
10 Press [F1](ON) key, and press [F4] (ENTER) key.
Returns to OTHERS SET menu.

11 Power off

[F1]
[F4]

Power OFF

16-4

OTHERS SET
F1:NEZ MEMORY
F2:REC TYPE
F3:CR,LF

2/5

P↓

17 CHECK AND ADJUSTMENT

17

CHECK AND ADJUSTMENT

17.1 Checking and adjusting of instrument constant
Note: Each of the Prism mode and Non-prism mode has instrument constant.
You must obtain the instrument constant of prism mode. If you reset the instrument constant
of the prism mode, you must vary the non-prism constant (Non-prism-short, Non-prismlong) by the same quantity as the amount of increase or decrease of the instrument
constant of the prism mode.
Normally, the instrument constant does not have discrepancy. It is recommended you measure and
compare with an accurately measured distance at a location where the precision is specifically
monitored on a consistent basis. If such a location is not available, establish your own base line over
20m (when purchasing the instrument) and compare the data measured with the newly purchased
instrument.
In both cases note that the setup displacement of the instrument position over the point, the prism,
baseline precision, poor collimation, atmospheric correction, and correction for refraction and earth
curvature determine the inspection precision. Please keep in mind these points.
Also, when providing a base line in a building, please note that differences in temperature greatly affect
the length measured.
If a difference of 5mm or over is the result from the comparative measurement, the following procedure
as shown below could be used to change the instrument constant.
1) Provide point C on a straight line, connecting straight line AB which is almost level and about 100m
long. Measure straight lines AB, AC and BC.

B

A
C

2) Obtain the instrument constant by repeating 1) above several times.
Instrument constant = AC+BC–AB
3) When there is error between written instrument constant value and calculated value, review
Section 17.4 “How to Set the Instrument Constant Value”
4) Once again, measure at a calibrated baseline and compare results.
5) If using above procedure and no difference is found from the instrument constant at the factory or a
difference of over 5mm is found, contact TOPCON or your TOPCON dealer.

17.1.1Checking of the accuracy of the non-prism mode
If you reset the instrument constant, you must check the accuracy of the non-prism mode.
1) Set a prism 30 to 50 meter apart from the instrument and measure the distance to the prism by
prism mode.
2) Take off the prism and set a (white) board.
3) Change the mode to the non-prism mode and measure the distance to the board.
4) Repeat above procedure and measure some points.
If the difference of the prism mode and non-prism mode is the range of ±10mm even one time, the
instrument is normal.
If the difference is never the range of ±10mm, contact TOPCON or your TOPCON dealer.

17-1

17 CHECK AND ADJUSTMENT

17.2 Checking the Optical Axis
To check if the optical axis of EDM and theodolite are matched, follow the procedure below. It is
especially important to check after adjustment of the eyepiece reticle is carried out.
1) Position a prism about more than 150m apart from GPT-2000 series .
2) After the power switch ON, collimate the center of the prism by prism mode.
3) Press the [F4] key to get the soft key page 2 in the
HR: 120°30'40"
distance measurement mode or page 3 in the
coordinate measurement.
HD* 123.456 m

VD:
5.678 m
MEAS MODE NP/P P1↓
OFSET S.O S/A P2↓
4) Press the [F3](S/A).
Buzzer sounds continuously.

PSM:0.0
PPM
NPM:0.0
SIGNAL:[❙ ❙ ❙ ❙ ❙]
PRISM PPM T-P

0.0

–––

● H direction confirmation (Do not move V direction).
5) Turn the horizon taltangent screw, move the collimating point to the left side of prism gradually until
buzzer sound stops.
Prism

Reticle
6) Turn the horizontal tangent screw slowly, and move the collimating point to the prism center
gradually until at the position buzzer starts.
Confirm the level of the signal (light quantity level) in display to adjust at the level of one to two as
shown in below by turning the horizontal tangent screw.
Prism

Reticle

PSM:0.0
PPM
NPM:0.0
SIGNAL:[❙ ❙
]
PRISM PPM T-P

0.0

–––

Quantity level two
7) Press the [ESC] key and measure the horizontal angle, and note the horizontal angle displayed. Or
you can do 0-set of horizontal angle.
8) Return to the Set Audio mode again.
9) Turn the horizon taltangent screw, move the collimating point to the right side of prism gradually
until buzzer sound stops.
Prism

Reticle

17-2

17 CHECK AND ADJUSTMENT
10) Move the collimating point to the center of prism gradually until buzzer sound starts.
Turning the horizontal tangent screw to be one to two level of SIG value to adjust the collimating
point same as step 6 procedure.
11) Note horizontal angle same as step 6 procedure.
12) Calculate the average value of step 6 and 10.
[Example] Step 6 :
Step 11 :

0°00'00"
0°08'20"

Average value 0°04'10"
13) Climate to the center of prism.
Compare the reading horizontal angle and calculated average value in step 12.
[Example] Horizontal angle of the center of the prism: 0°04'30"
Difference of Average value and Horizontal reading of the center of the prism : 20"
If the difference is within 2', no problem for use.
● Vertical direction confirmation (Do not move Horizontal direction).
14) Carry out as Horizontal direction confirmation.
Compare the reading vertical angle of center of prism and calculated average value.
If the difference is within 2', no problem for use.
Prism

Reticle

[Example]

Lower side of prism 90°12'30"
Upper side of prism 90°04'30"
Average

90°08'30"

Reading to prism center 90°08'50"
Difference 20"

If the difference is more than mentioned value, contact with your Topcon dealer or Topcon.

17-3

17 CHECK AND ADJUSTMENT

17.3 Checking/Adjusting the Theodolite Functions
● Pointers on the Adjustment
1) Adjust the eyepiece of the telescope properly prior to any checking operation which involves
sighting through the telescope.
Remember to focus properly, with parallax completely eliminated.
2) Carry out the adjustments in the order of item numbers, as the adjustments are dependent one
upon another. Adjustments carried out in the wrong sequence may even nullify previous
adjustment.
3) Always conclude adjustments by tightening the adjustment screws securely (but do not tighten them
more than necessary, as you may strip the threads, twist off the screw or place undue stress on the
parts).
Furthermore, always tighten by revolving in the direction of tightening tension.
4) The attachment screws must also be tightened sufficiently, upon completion of adjustments.
5) Always repeat checking operations after adjustments are made, in order to confirm results.
● Notes on the Tribrach
Note that the angle measuring precision may be effected directly if the tribrach has not been installed
firmly.
1) If any leveling screw becomes loose and slack or if collimation is unstable due to the looseness of
leveling screws, adjust by tightening the adjusting screws (in 2 places) installed over each leveling
screw with a screwdriver
2) If there is any slack between the leveling screws and the base, loosen the set screw of the holding
ring and tighten the holding ring with adjusting pin, until it is properly adjusted. Re-tighten the set
screw on completing the adjustment.

Adjustment screw

Leveling screw

Adjustment screw

Holding ring

17-4

Set screw

17 CHECK AND ADJUSTMENT

17.3.1Checking /Adjusting the Plate Level
Adjustment is required if the axis of the plate level is not perpendicular to the vertical axis.
● Check
1) Place the plate level parallel to a line running through the centers of two leveling screws, say, A and
B. Use these two leveling screws only and place the bubble in the center of the plate level.
2) Rotate the instrument 180° or 200g around the vertical axis and check bubble movement of the
plate level. If the bubble has been displaced, then proceed with the following adjustment.

Plate level

Leveling screw B

Leveling screw

● Adjustment
1) Adjust the level adjustment capstan screw, with the accessory adjusting pin and return the bubble
towards the center of the plate level. Correct only one-half of the displacement by this method.
2) Correct the remaining amount of the bubble displacement with the leveling screws.
3) Rotate the instrument 180° or 200g around the vertical axis once more and check bubble
movement. If the bubble is still displaced, then repeat the adjustment.
Level adjustment
capstan screw

Total amount of displacement
Half amount of displacement

17.3.2Checking /Adjusting the Circular Level
Adjustment is required if the axis of the circular level is also not perpendicular to the vertical axis.
● Check
1) Carefully level the instrument with the plate level only. If the bubble of the circular level is centered
properly, adjustment is not required. Otherwise, proceed with the following adjustment.
● Adjustment
1) Shift the bubble to the center of the circular level, by adjusting three capstan adjustment screws on
the bottom surface of the circular level, with the accessory adjusting pin.
Capstan adjustment
screws

Bottom of the base

Circular level

17-5

17 CHECK AND ADJUSTMENT

17.3.3Adjustment of the Vertical Cross-hair
Adjustment is required if the vertical cross-hair is not in a place perpendicular to the horizontal axis of
the telescope ( since it must be possible to use any point on the hair for measuring horizontal angles or
running lines).
● Check
1) Set the instrument up the tripod and carefully level it.
2) Sight the cross-hairs on a well defined Point A at a distance of, at least, 50 meters (160ft.) and
clamp horizontal motion.
3) Next swing the telescope vertically using the vertical tangent screw, and check whether the point
travels along the length of the vertical cross-hair.
4) If the point appears to move continuously on the hair, the vertical cross-hair lies in a plane
perpendicular to the horizontal axis ( and adjustment is not required ).
5) However, if the point appears to be displaced from the vertical cross-hair, as the telescope is
swung vertically, then proceed with the following adjustment.

● Adjustment
1) Unscrew the cross-hair adjustment section cover, by revolving it in the counterclockwise direction,
and take it off. This will expose four eyepiece section attachment screws.
Eyepiece section
attachment screws

Eyepiece section
attachment screws

Eyepiece
2) Loosen all four attachment screws slightly with the accessory screw-drive (while taking note of the
number of revolutions).
Then revolve the eyepiece section so that the vertical cross-hair coincides to Point A’.
Finally, re-tighten the four screws by the amount that they were loosened.
3) Check once more and if the point travels the entire length of the vertical cross-hair, further
adjustment is not required.
Note: Perform following adjustment after completing the above adjustment .
Section 17.3.4 “Collimation of the Instrument”, Section 17.3.7 “Adjustment of Vertical Angle 0
Datum”.

17-6

17 CHECK AND ADJUSTMENT

17.3.4Collimation of the Instrument
Collimation is required to make the line of sight of the telescope perpendicular to the horizontal axis of
the instrument, otherwise, it will not be possible to extend a straight line by direct means.
● Check
Eyepiece
1) Set the instrument up with clear
sights of about 50 to 60meters
(160 to 200 ft.) on both sides of the
instrument.
50ｍ
2) Level the instrument properly with the
plate level.
3) Sight Point A at approximately 50
meters (160 ft.) distance.
Telescope
4) Loosen the vertical motion clamp
only, and rotate the telescope 180° or
200g around the horizontal axis, so
that the telescope is pointed in the
opposite direction.
5) Sight Point B, at equal distance as
Point A and tighten the vertical
motion clamp.

50ｍ

6) Loosen the horizontal motion clamp
and rotate the instrument 180° or
200g around the vertical axis. Fix a
sight on Point A once more and
tighten the horizontal motion clamp.

50ｍ

7) Loosen the vertical motion clamp
only and rotate the telescope 180°
or 200g around the horizontal axis
once more and fix a sight on Point C,
which should coincide with previous
Point B.
8) If Points B and C do not coincide,
adjust in the following manner.

50ｍ

● Adjustment
1) Unscrew the cross-hair adjustment section cover.
2) Find Point D at a point between Points C and B, which should
be equal to 1/4th the distance between Points B and C and
measured from Point C. This is because the apparent error
between Points B and C is four times the actual error since
the telescope has been reversed twice during the checking
operation.

3)Shift the vertical cross-hair line and coincide it with
Point D, by revolving the left and right capstan
adjustment screws with the adjusting pin.Upon
Capstan
completing the adjustment, repeat the checking
adjustment operation once more.
screws
If Points B and C coincide, further adjustment is not
required. Otherwise , repeat the adjustment.

Capstan
adjustment
screws

Eyepiece

17-7

17 CHECK AND ADJUSTMENT

Note: 1

2

First, loosen the capstan adjustment screw on the side to which the vertical cross-hair
line must be moved. Then tighten the adjustment screw on the opposite side by an equal
amount which will leave the tension of the adjustment screws unchanged.
Revolve in the counterclockwise direction to loosen and in the clockwise direction to
tighten, but revolve as little as possible.
Perform following adjustment after completing above adjustment . Section 17.3.7
“Adjustment of Vertical Angle 0 Datum”, Section 17.2 “Checking the Optical Axis”.

17.3.5Checking / Adjusting the Optical Plummet Telescope
Adjustment is required to make the line of sight of the optical plummet telescope coincide with the
vertical axis ( otherwise the vertical axis will not be in the true vertical when the instrument is optically
plumbed).
● Check
1) Coincide the center mark and the point. (See Chapter 2 “PREPARATION FOR MEASUREMENT”.)
2) Rotate the instrument 180° or 200g around the vertical axis and check the center mark.
If the point is properly centered in the center mark, adjustment is not required. Otherwise, adjust in
the following manner.
● Adjustment
1) Take off the adjustment section cover of the optical plummet telescope eyepiece. This will expose
four capstan adjustment screws which should be adjusted with the accessory adjusting pin to shift
the center mark to the point. However, correct only one-half of the displacement in this manner.
Capstan
adjustment
screws

Capstan
adjustment
screws

Total amount of
displacement

Half amount of
displacement

Eyepiece
Plummet telescope

2) Use the leveling screws and coincide the point and center mark.
3) Rotate the instrument 180° or 200g around the vertical axis once more and check the center mark.
If it is coincided to the point, then further adjustment is not required. Otherwise, repeat the
adjustment.

Note: First, loosen the capstan adjustment screw on the side to which the center mark must be
moved. Then tighten the adjustment screw on the opposite side by an equal amount which
will leave the tension of the adjustment screws unchanged.
Revolve in the counterclockwise direction to loosen and in the clockwise direction to tighten,
but revolve as little as possible.

17-8

17 CHECK AND ADJUSTMENT

17.3.6Checking / Adjusting the Laser Plummet (For Laser Plummet type)
● Check
1) Turn on the laser plummet and coincide the center of the laser with a measuring point.
2) Rotate the instrument 180° or 200g around the vertical axis and check the measuring point.
If the laser is properly centered in the measuring point, adjustment is not required. Otherwise,
adjust in the following manner.
● Adjustment
1) Turn the cap located on the left side corner of the
instrument counterclockwise and remove it.
This will expose four adjustment screws which
should be adjusted with the accessory hexagonal
wrench.
2) Shift the laser to the measuring point. However,
correct only one-half of the displacement in this
manner.

Cap

Totla amount of
displacement
Adjustment
screws

Half amount of

Laser

displacement

Adjustment screws

Measuring point

3) Use the leveling screws and coincide the center of the laser and the point.
4) Rotate the instrument 180° or 200g around the vertical axis once more and check the point and the
laser. If the laser is coincided to the measuring point, then further adjustment is not required.
Otherwise, repeat the adjustment.
Note: Note:First, loosen the adjustment screw to move the laser. Then tighten the adjustment screw on
the opposite side by an equal amount which will leave the tension of the adjustment screws
unchanged.
Revolve in the counterclockwise direction to loosen and in the clockwise direction to tighten, but
revolve as little as possible.

Reference
The laser can be moved by turning the adjustment screws clockwise as follows.
Laser beam

Laser is moved down.
Laser is moved left.

Laser is moved right.

Laser is moved up.
Top of view of the measuring point
Adjustment screws

17-9

17 CHECK AND ADJUSTMENT

17.3.7Adjustment of Vertical Angle 0 Datum
If when measuring the vertical angle of target A at telescope position normal (direct) and reverse
settings, the amount of normal and reverse measurements combined is other than 360° (ZENITH-0),
half of the difference from 360° is the error amount from corrected 0 setting. Carry out adjustment. As
adjustment for vertical angle 0 setting is the criteria for determining instrument coordinate origin, use
special care for adjustment.
Operating procedure

Operation

Display

1 Level the instrument properly with the
plate level.

2 While pressing the [F1]key, turn power switch ON.

3 Press the [F1] key.

[F1]
+
Power ON

[F1]

4 Collimate target A from the telescope properly in
normal setting.

5 Press the [F4](ENTER) key.

7 Press the [F4](ENTER) key.
Measured value is set and carry out normal angle
measurement.

V0 ADJUSTMENT
 FRONT
V:
90°00'00"
ENTER

Collimate A
(Normal)
[F4]

6 Collimate target A in reverse telescope setting.

ADJUSTMENT MODE
F1:V ANGLE 0 POINT
F2:INST. CONSTANT
F3:V0 AXIS

Collimate A
(Reverse)

V0 ADJUSTMENT
 REVERSE
V: 270°00'00"
ENTER

[F4]



V : 270°00'00"
HR: 120°30'40"
0SET
8 Check that the total amount of normal and reverse
angular travel is 360° collimating the target A by
normal and reverse positions.

17-10

HOLD

HSET P1↓

17 CHECK AND ADJUSTMENT

17.4 How to Set the Instrument Constant Value
To set the Instrument constant which is obtained in Section 17.1 “Check and adjusting of instrument
constant”, follow as below.
Note: Each of the Prism mode and Non-prism mode has instrument constant.
You must obtain the instrument constant of prism mode. If you reset the instrument
constant of the prism mode, you must vary the non-prism constant (Non-prism-short, Nonprism-long) by the same quantity as the amount of increase or decrease of the instrument
constant of the prism mode.
Operating procedure

Operation

1 While pressing the [F1] key, turn power switch
ON.

2 Press the [F2] key.

3 Select the constant value by pressing the [F1] to

Display

[F1]
+
POWER ON

ADJUSTMENT MODE
F1:V ANGLE 0 POINT
F2:INST. CONSTANT
F3:V0 AXIS

[F2]

INST. CONSTANT SET
F1:PRISM
F2:NON-PRISM-SHORT
F3:NON-PRISM-LONG

[F1] to [F3]

INST. CONSTANT SET
NON-PRISM-LONG
:
- 0.6 mm
INPUT ––– ––– ENTER
1234 5678 90.- [ENT]

4 Enter the constant value. *1),2)

[F1]
Enter value
[F4]

INST. CONSTANT SET
NON-PRISM-LONG
:
- 0.7 mm
INPUT ––– ––– ENTER

5 Turn power switch OFF.

Power OFF

[F3] key.

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
*2) To cancel the setting, press the [ESC] key.

17-11

17 CHECK AND ADJUSTMENT

17.5 Adjustment of Compensation Systematic Error of Instrument
(Only for GPT-2003/2005/2006)
Operating procedure

Operation

1 Level the instrument properly with the
plate level.

2 While pressing the [F1] key, turn power switch ON.

[F1]
+
Power ON

3 Press the [F3] key.

[F3]

4 Press the [F1] key.

[F1]

Display

ADJUSTMENT MODE
F1:V ANGLE 0 POINT
F2:INST. CONSTANT
F3:V0 AXIS
AV0 AXIS
F1:MEASUREMENT
F2:CONSTANT LIST

V0/AXIS ADJUSTMENTS

ERROR CORRECTION
(A)COLLIMATION
(B)H AXIS
5 Collimate target A (around 0° in horizontal within
±3°) in normal telescope setting (FACE (1)).

6 Press the [F4](SET) key. *1)
The sample display shows that the measurement
is made 5 times in FACE 1.

7 Turn the telescope in reverse telescope setting
(FACE (2)).

Collimate
A
(Normal)

FRONT FACE1
V:
89°55'50"
LEVEL ±0
SKIP

/0

SET

[F4]

Turn
telescope

REVERSE FACE2
V: 270°04'20"
LEVEL ±0

/5

SET

8 Collimate target A.
9 Press the [F4](SET) key.
Repeat the procedures in step 8 and 9 so that the
count of measured times matches to the one in
FACE(1). *2),3),4)

[F4]

(B)HORIZONTAL AXIS

The title display will be shown automatically.

10 Collimate target B (more than ±10° from the level)
in reverse telescope setting
(FACE(2)). *5)

11 Press the [F4](SET) key. *5)

Collimate
B
(Reverse)

REVERSE FACE 2
V: 270°04'20"
LEVEL ±10°

SET

[F4]

12 Turn the telescope in normal telescope setting

Turn
telescope

(FACE(1)).

13 Collimate target B.

[F4]

17-12

/0

FRONT FACE 1
V: 89°55'50"
LEVEL ±10°
SKIP

/5

SET

17 CHECK AND ADJUSTMENT

14 Press the [F4](SET) key. Repeat the procedures in
step 13 and 14 so that the count of measured

COMPLETE

times matches to the one in FACE(2).
Then the display returns to main menu.

● To show the constant list of systematic error of
instrument

1 Press the [F3] key from Adjustment Mode menu 1/
2.

2 Press the [F2] key.
Correction values are displayed.

3 Press the [F1] key.

ADJUSTMENT MODE
F1:V ANGLE 0 POINT
F2:INST. CONSTANT
F3:V0 AXIS
[F3]

V0 AXIS
F1:MEASUREMENT
F2:CONSTANT LIST

[F2]

VCo: -1°57'12"
HCo: -0°00'20"
HAx: -0°00'20"
EXIT

[F1]

The display returns to previous menu.

*1) It is able to get the average value from 1 to 10 measurements. To get the average, repeat the
procedures in steps 5, 6 or 10, 11. The measured times is counted in the second line of display.
*2) The compensation values of 1) Error of vertical axis (X,Y tilt sensor offset), 2) Collimation error, and 3)
Error of vertical angle 0datum will be set and memorized internally.
*3) The operating procedure steps to set compensation value of 4) Error of horizontal axis.
*4) Pressing the [F1](SKIP) key enables to set next step without changing the last compensated value.
*5) Pressing the [F1](SKIP) key makes end of setting without changing compensation value.

17-13

18 PRECAUTIONS

18

PRECAUTIONS
1) For transportation, hold by the handle or yoke of the instrument. Never hold by the lens barrel as it
can affect the fixing bracket inside and reduce the accuracy of the instrument.
2) Never expose the instrument without a filter to direct sunlight. It may damage the components
inside the instrument.
3) Never leave the instrument unprotected in high temperature. The temperature inside instrument
may easily reach up to 70°C or above and will reduce the service life.
4) The instrument should be stored in the room temperature range of minus 30°C to plus 60°C.
5) When a high degree of precision is required for measurement, provide shade against direct sunlight
for the instrument and tripod.
6) Any sudden change of temperature to the instrument or prism may result in a reduction of
measuring distance range, i.e. when taking the instrument out from a heated vehicle.
7) When opening the carrying case and taking out the instrument, place the case horizontally, then
open the case.
8) When returning the instrument to its case, be sure to match the white positioning marks provided
with the case and place the instrument with the eyepiece upward.
9) For transportation, provide dampening or a cushion appropriately to avoid sudden shock or
vibration.
10) For cleaning the instrument after use, remove dust using a cleaning brush, then wipe off with a
cloth.
11) For cleaning the lens surface, use a cleaning brush to remove the dust, then use a clean lintless
cotton cloth. Moisten it with alcohol ( or mixture with ether ) to wipe gently in a rotational motion
from the center out.
12) Even if any abnormality occurs, never attempt to disassemble or lubricate the instrument yourself.
Always consult with TOPCON or your dealer.
13) To remove the dust on the case, never use thinner or benzine. Use a clean cloth moistened with
neutral detergent.
14) Check each part of the tripod after extended use. Parts (screws or clamps) may work themselves
free.

18-1

19

SPECIAL ACCESSORIES

Auto converter AC-5
● Input voltage:12V DC
● Output voltage :DC 8.4V
● Cable length:3m approx.
● External dimensions:
100(L)×53(W)×47(H) mm
● Weight:0.3kg

MENU
ANG

19 SPECIAL ACCESSORIES

BS

ESC

ENT

Data entry keyboard DK-7
Occupied point, coordinate data and other data can be
input from DK-7. It is also possible to control GPT-2000
series from DK-7.

Power cord PC-3 (For AC-5)
● L-shape plug provided
● Cord length: 2m approx.

Power cord PC-5
(For BT-3Q and TOPCON FC series Data collector)
● L-shape plug provided
● Cord length: 2m approx.

Solar reticle, Model 6
Trough compass, Model 6
Shock proof construction. No clamp is necessary when A reticle designed for collimation of the sun.
Can be used together with Solar Filter.
carrying the instrument.
.

Solar filter, Model 6
Diagonal eyepiece, Model 10
Observation in an easy posture will be provided up to A filter designed exclusively for direct collimation of
the sun.
the zenith position
Solar filter of flap-up type.

19-1

19 SPECIAL ACCESSORIES

Optical plummet tribrach
Mini prism
This is detachable tribrach having built-in optical
The mini prism (25.4mm) is made from precision
plummet telescope.
ground glass and mounted in high impact plastic
(Compatible with Wild)
housings.
● The mini has the unique capability of being
positioned either at a "0" or "–30" with the same
prism
Prism sets
See the description on Chapter 21 "PRISM SYSTEM"

Gadget case, Model 1
A case to store and carry accessories.
● External dimensions:
300(L)×145(W)×220(H) mm
● Weight:1.4kg

Back pack, Model 2
Convenient for use in mountainous terrain.

Prism unit case, Model 3
This is the plastic case to store and carry various sets
of prisms.
The case covers one of the following prism sets:
● Tilt single prism set
● Tilt single prism set with a target plate
● Fixed triple prism unit
● Fixed triple prism unit with a target plate
● External dimensions:
427(L)×254(W)×242(H) mm
● Weight:3.1kg

Prism unit case, Model 6
Fixed 9 prisms unit or tilting 3 prisms unit can be
stored in this case. Especially, this is a very easy
case to carry. Soft material is used.
● External dimensions:
250(L)×120(W)×400(H) mm
Weight:0.5kg
Prism unit case, Model 5
1 prisms unit or fixed 3 prisms unit can be stored in
this case. Especially, this is a very easy case to
carry. Soft material is used.
● External dimensions:
200(L)×200(W)×350(H) mm
● Weight:0.5kg

19-2

19 SPECIAL ACCESSORIES

Aluminum extension leg tripod, Type E
● Flat head 5/8" × 11 threads with adjustable legs.

Wide-frame extension leg tripod, Type E (Wood)
● Flat head 5/8" × 11 threads with adjustable legs.

19-3

20 BATTERY SYSTEM

20

BATTERY SYSTEM

In case of On-board battery
BT-52QA

GPT-2000 series
Battery pack
In case of External battery Pack
BT-3Q

Cord
PC-5

BT-3L

PC-6

GPT-2000 series

Charging
Battery pack

PC-3
PC-5
PC-6

Car battery
AC-5

Charger

Charging time

BC-27BR/CR
Approx. 1.8h

Quick
BC-27BR for AC 120V use
BC-27CR for AC 230V use

BT-52QA
BC-19BR/CR
Approx. 1.5h

BT-32Q

20-1

Quick
BC-19BR for AC 120V use
BC-19CR for AC 230V use

21 PRISM SYSTEM

21

PRISM SYSTEM
Arrangement according to your needs is possible.
Target pole-2
(not used with 9 prisms)

Prism-2

Tilting prism
holder-2
with target
plate-2

Tilting prism Single prism
holder-3
holder-2

Triple prism
holder-2

Tribrach
adaptor-2

Tilting triple
prism holder-1 9 prism
holder-2

Tribrach
adaptor-S2

Pole adaptor- A

Pole adaptor- F2

Tribrach

Optical plummet tribrach

It is possible to change the combination according purpose.

Tilt single prism unit

Fixed 3 prisms unit

Fixed 9 prisms unit

Tripod

Use the above prisms after setting them at the same height as the instruments. To adjust the height of
prism set, change the position of 4 fixing screws.

21-1

22 ERROR DISPLAYS

22

ERROR DISPLAYS

Error code

Description

Countermeasures

3 points
required

When area calculating, there are less
than 3 points coordinate data in
selected file.

Confirm the file data and calculate
again.

CALC
ERROR

Calculation is impossible from the
data input.

Confirm the input data.

DELETE
ERROR

When deleting coordinate data, it can not
be done successful.

Confirm the data and delete again.

SIGNAL
OVER

Displayed when you measure a prism of short Measure the distance by using a target
distance with non-prism mode, or when the
without using a prism, or change the mode
telescope received too much light.
from non-prism mode to prism mode.
Displayed when REM measurement
carried out to the range from zenith or
nadir ±6°.

Operate in the range out of ± 6° from the
zenith or nadir.

E60’s

Any abnormality occurs with EDM (distance
measuring system).

Repair is required.

E71

Displayed when vertical angle 0 position is
set with incorrect procedure.

Confirm the procedure and readjust.

E72

Displayed when Vertical angle -position is
adjusted in wrong position.

Repair is required.

E73

The instrument was not leveled when Vertical
angle 0-position is adjusted.

Level the instrument then carry the
adjustment work.

E80’s

Mainly at the time data transmission
between GPT-2000 series and external
instrument.

Confirm operation procedure is correct or the
connection cables are correct.

E90’s

Abnormality in internal memory
system.

Repair is required.

The same file name exists.

Use another file name.

When making a file, 30 files already exist.

If necessary, send or delete files.

Initializing can not be done successful.

Confirm initializing data and try to
initialize again.

Limit of input data exceeded.

Input again.

MEMORY
ERROR

Any abnormality occurs with internal
memory.

Initialize the internal memory.

MEMORY
POOR

Shortage of capacity of the internal
memory.

Download data from internal memory
to PC.

NO DATA

The data is not found in the search
mode

Confirm the data and search again.

NO FILE

There is no file in internal memory.

If necessary, make files.

When using a file, no file is selected.

Confirm the file and select a file.

When in point to line measurement, the
horizontal distance between first point and
second point is within 1m.

The horizontal distance between first
point and second point must be more
than 1m.

E35

FILE
EXISTS
FULL
FILES
FAILED
INITIALIZE
LIMIT
OVER

FILE NOT
SELECTED
P1-P2
distance
too short

22-1

22 ERROR DISPLAYS
CIRCULAR
ERROR

Known points and occupied point are on the
same circle at the resection mode.

Take the different point.

PT# EXIST

Same new point name is already memorized
in the memory.

Confirm the new point name and input
again.

PT# DOES
NOT EXIST

When you enter incorrect name or PT# does
not exist in the internal memory.

Enter the correct name or enter point in the
internal memory.

RANGE
ERROR

When setting a new point, calculation is
impossible from the measured data.

Measure again.

Tilt Over

Instrument tilts over more than
3 minutes.

Level the instrument properly.

V ANGLE
ERROR
H ANGLE
ERROR

Abnormality in angle measuring system.

If this error code continues to display, repair is
required.

VH ANGLE
ERROR
● If error still persist after attempting to clear them, contact your local Topcon dealer or Topcon head
office.

22-2

23 SPECIFICATIONS

23

SPECIFICATIONS
Telescope
Length
Objective lens
Magnification
Image
Field of view
Resolving power
Minimum focus
Reticle illumination

:
:
:
:
:
:
:
:

150mm
45mm (EDM 50mm)
30×
Erect
1°30'
2.5"
1.3m
Provided

Distance measurement
Measurement range
Non-prism mode (Target: White wall)
Atmospheric conditions
Model

In low light condition and without
sun glare on target

GPT-2003
GPT-2005
GPT-2006

3 to 150 m (9.8 to 492 ft)

GPT-2009

3 to 100 m (9.8 to 328 ft)

Prism mode
Atmospheric conditions
Model

Prism
Condition 1

GPT-2003
GPT-2005
GPT-2006

Mini prism

2,000m (6,500ft)

1 prism

7,000m (22,900ft)

Mini prism

1,500m (4,900ft)

1 prism

4,000m (13,100ft)

GPT-2009
Condition 1: Sight haze with visibility about 20km (12.5miles) moderate sunlight with light heat
shimmer.

Measurement accuracy
Non-prism mode (Diffusing Surface)
GPT-2003/2005/2006/2009
3 to 25m (9.8 to 82ft)
25m or more (82ft or more)

Prism mode
GPT-2003/2005/2006/2009

: ± (10mm) m.s.e.
: ± (5mm +2ppm × D) m.s.e.
D:Measuring distance (mm)

: ±(3mm +2ppm × D) m.s.e.
D:Measuring distance (mm)

23-1

23 SPECIFICATIONS
Least Count in Measurement
Fine measurement mode
Coarse measurement mode
Tracking measurement mode
Measurement Display
Measurement Time
Fine measurement mode
Coarse measurement mode
Tracking measurement mode

Atmospheric Correction Range
Prism Constant Correction Range
Coefficient Factor

:
:
:
:

1mm (0.005ft.) / 0.2mm (0.001ft.)
10mm (0.02ft.) / 1mm (0.005ft.)
10mm (0.02ft.)
12 digits : max. display 99999999.9999

: 1mm
: Approx. 1.2sec. (Initial 3 sec.)
0.2mm : Approx. 3 sec. (Initial 4 sec.)
: Approx. 0.5sec. (Initial 2.5 sec.)
: Approx. 0.3sec. (Initial 2.5 sec.)
(The initial time will be different by a condition and
setting EDM off time. )
: –999.9 ppm to +999.9 ppm, in 0.1 ppm increments
: –99.9 mm to +99.9 mm, in 0.1 mm increments
: Meter / Feet
International feet
1meter = 3.2808398501 ft.
US SURVEY feet
1meter = 3.2808333333 ft.

Electronic Angle Measurement
Method
: Absolute reading
Detecting system
Horizontal angle
GPT-2003/2005
: 2 sides
GPT-2006/2009
: 1 side
Vertical angle
: 1 side
Minimum reading
GPT-2003/2005/2006
: 5" / 1" (1mgon / 0.2mgon) reading
GPT-2009
: 10" / 5" (2mgon / 1mgon) reading
Accuracy (Standard deviation based on DIN 18723 )
GPT-2003
: 3"(1mgon )
GPT-2005
: 5"(1.5mgon )
GPT-2006
: 6"(1.8mgon )
GPT-2009
: 9"(2.7mgon )
Measuring time
: Less than 0.3 sec.
Diameter of circle
: 71mm
Tilt Correction (Automatic index)
Tilt sensor
GPT-2003/2005/2006
GPT-2009

: Automatic vertical and horizontal compensator
: Automatic vertical compensator

Method
Compensating Range
Correction unit

: Liquid type
: ±3'
: 1" (0.1mgon)

Others
Instrument height

Level sensitivity
Circular level
Plate level
GPT-2003/2005
GPT-2006/2009
Optical Plummet Telescope
Magnification
Focusing range
Image
Field of view

: 176mm (6.93in) Base unit detachable
(Height from the tribrach dish to the center of
telescope)
: 10'/2mm
: 30"/2 mm
: 40"/2 mm

:
:
:
:

3×
0.5m to infinity
Erect
5°(ø114mm/1.3m)

23-2

23 SPECIFICATIONS
Laser Plummet (only for Laser plummet type)
Light source
Wave length
Out put
Laser class
Dimension

:
:
:
:

L.D (Visible laser)
633nm
1mW maximum
CLASS 2 (ll) laser product

: 336(H)×184(W)×150(L) mm
(13.2(H)×7.2(W)×5.9(L) in)

Weight
Instrument
(with battery)
(without battery)
Plastic carrying case

Durability
Protection against water and dust
Ambient Temperature Range

: 5.0kg ( 11.0 lbs)
: 4.7kg ( 10.4 lbs)
: 3.2kg ( 7.1 lbs)
(Weight of the carrying case may be slightly different
due to specific market.)
: IP66 (with BT-52QA)
(Based on the standard IEC60529)
: –20°C to +50°C (–4°F to +122°F)

Battery BT-52QA (This battery does not contain mercury.)
Out put voltage
: 7.2 V
Capacity
: 2.7 AH (Ni-MH)
Maximum operating time (when fully recharged) at +20°C (+68°F)
Including distance measurement
: 3.2hours (3,800 points)
Angle measurement only
: 45hours
Weight
: 0.3kg ( 0.7 lbs)
Battery Charger BC-27BR / BC-27CR
Input voltage
Frequency
Recharging time (at +20°C /+68°F)
Battery BT-52QA
Discharging time (at +20°C /+68°F)
Battery BT-52QA
Operating temperature
Charging signal
Refreshing signal
Finishing signal
Weight

: AC 120V(BC-27BR), AC 230V(BC-27CR)
: 50/60Hz
: 1.8 hours
:
:
:
:
:
:

8 hours (in case of full charge)
+10°C to +40°C ( +50°F to +104°F)
Red lamp illumination
Yellow lamp illumination
Green lamp illumination
0.5kg (1.1 lbs)

● Battery using time will vary depending on environmental conditions and operations done with GPT2000 series.

23-3

APPENDIX

APPENDIX
3

Dual Axis Compensation
Inclination of the vertical axis with respect to true vertical will result in incorrectly measured horizontal
angles. The extent of the error in horizontal angle measurement due to axis tilt depends on three
factors :
● the amount of the tilt of axis
● the elevation of the target
● the horizontal angle between the direction of till of the vertical axis and the target.
These factors are related by the following formula :
Hzerr = V•sinα • tanh
where v = tilt of axis in arcseconds
α = azimuth angle between vert. axis direction and target
h = elevation of target
Hzerr = error in horizontal angle
Example: When the vertical axis is tilted by 30 arcseconds, the target is 10° above the horizon and
rotated 90 in azimuth from the direction of the vertical axis error.
Hzerr = 30" • sinα • tan10°
Hzerr = 30" • 1 • 0 .176326=5.29"
From the above example it can be seen that horizontal angle errors will increase with steeper vertical
sights (tangent will increase as vertical angle increases) and will be at a maximum when the target is at
right angles (sin 90°=1) to the direction of the vertical axis error. Errors will be at a minimum when the
sights are nearly horizontal (h=0, tan0=0) and in the same direction as the vertical axis error (α =0,
sin0=0). Please refer to the table below to see the relationship between axis tilt (v) and elevation (h) and
the error in horizontal angles which results from these factors.

h

V

0°

1°

5°

10°

30°

45°

0"

0"

0"

0"

0"

0"

0"

5"

0"

0.09"

0.44"

0.88"

2.89"

5"

10"

0"

0.17"

0.87"

1.76"

5.77"

10"

15

0"

0.26"

1.31"

2.64"

8.66"

15"

30"

0"

0.52"

2.62"

5.29"

17.32"

30"

1'

0"

1.05"

5.25"

10.58"

34.64"

1'

APPENDIX-1

APPENDIX
It is clear from the table that dual axis compensation has the most benefit when the elevation
of the target is greater then 30° and the axis is tilted more than 10". The entries indicated in
bold in the table show, in fact, that for many common surveying applications i.e. target elevation
<30° and axis error <10", virtually no correction would be required. Dual axis compensation is
especially suited then for applications where the sights are very steep.
Even though the compensators can correct horizontal angles for vertical axis errors,
it is still important to use care in setting up the instrument.
Centering error, for instance, cannot be corrected by the compensators. If the vertical axis is
tilted by 1’ with the instrument 1.4meters above the ground, a centering error of approx. 0.4mm
will result. The maximum effect of this error at 10m is about 8" of horizontal angle error.
In order to maintain the increased accuracy possible through dual axis compensation, it is
necessary to keep the compensators in proper adjustment.The compensators must agree with
the actual level condition of the instrument. Through various environmental stresses, the
agreement between the level condition sensed by the compensators and the true level condition
of the instrument may be disturbed. In order to reestablish the correct relationship between the
compensator and the true level condition of the instrument, it is necessary to carry out the
vertical indexing procedure listed on chapter 14.3.6 "Adjustment of vertical Angle 0 Datum". This
adjustment will both reset the vertical index (cause a direct + indirect zenith reading to the same
elevation to equal 360°) and zero the level reference for the horizontal compensator. While
correct vertical angles can be obtained by averaging direct and indirect reading even when the
index is improperly adjusted, the same is not true for horizontal angles. Since the vertical axis
error is fixed for a given setup, its effect cannot be removed by averaging two readings.
For this reason, it is extremely important to maintain the vertical indexing adjustment to
insure proper correction of the horizontal angles.

APPENDIX-2

APPENDIX

4

Precaution when Charging or Storing Batteries
The capacity of battery will be affected and its service life shortened in any of the following cases while
it is recharged, dischrged or stored.
1) Recharging
Fig. 1 shows how ambient temperature at recharging is related to charging efficiency or as affecting
discharge capacity. As seen from the figure, charging at normal temperature is best, and the
efficiency decreases as the temperature rises. It is best, therefore, to always recharge the battery at
normal temperature to obtain full use of battery capacity and enjoy maximum operation per charge.
And the service life of your battery will be shortened if it is frequently overcharged or recharged at
high temperature.
Note: 0.1C charge means that the battery is recharged with 0.1 -time current as against its
capacity.

2) Discharge
Fig. 2 shows discharge temperature characteristics. Discharge characteristics at high temperature
are the same as those at normal temperatures. The battery is likely to have reduced discharge
capacity as well as lower discharged voltage when discharged at low temperature. And the service
life of your battery will be shortened if it is greatly overcharged.
Note: 1C discharge means one with 1 -time current over battery capacity.

3) Storage
See Fig. 3 for how storing period at different temperature levels is related to the remaining capacity.
The battery will lose its capacity as storage temperature rises and the storage period increases.
This does not mean, however , that the battery performance is damaged when the battery is stored.
The battery, reduced in capacity, will be restored once it is recharged. Always recharge your battery
before use. And recharge and discharge the battery 3 or 4 times to restore its capacity if it has been
stored for a long period or at high temperature. Storing at high temperature can adversely affect the
service life of your battery.
Your battery has been fully charged before leaving the factory, but its capacity may be affected
considerably when it takes several months to reach you, if it is stored at high temperature area or
passes through a high-temperature region. Then, the battery must be recharged and discharged
3~4 times to fully restore its capacity.
And the battery should always be stored at normal temperature or lower if it will not be used for any
long period. This helps your battery have a longer service life.

APPENDIX-3

APPENDIX

Charging efficiency (discharge capacity(%))

120

100
0.1C charge
80

60
Discharge : 0.2, E.V.=1.0V
Temperature at
discharge : 20℃

40

20

0
0

10

30

20

40

50

60

Ambient temperature when charging（℃）

Fig.1 Recharging
120

Discharge capacity（％）

100

0.2C discharge

80
1C discharge
60
Charging : 0.1C×16hours
Charging temperature : 20℃
40

20

0
-20

0

20

60

40

Ambient temperature（℃）

Fig. 2 Discharge

Remaining capacity ratio（％）

100
0℃
80
20℃
60

40

Charging : 0.1C×16hours
Discharge : 0.2 C, E.V.=1.0V

20
45℃

60℃

0
0

2

1
Storing period (month)

Fig. 3 Storage

APPENDIX-4

3

APPENDIX

APPENDIX-5

PULSE TOTAL STATION

GPT-2000 series

TOPCON POSITIONING SYSTEMS, INC.
5758 West Las Positas Blvd., Pleasanton, CA 94588, U.S.A.
Phone: 925-460-1300 Fax: 925-460-1315 www.topcon.com
TOPCON CALIFORNIA
3380 Industrial Blvd, Suite 105, West Sacramento, CA 95691,
U.S.A.
Phone: 916-374-8575 Fax: 916-374-8329
TOPCON MIDWEST
891 Busse Road, Elk Grove Village, IL 60007, U.S.A.
Phone: 847-734-1700 Fax: 847-734-1712
TOPCON EUROPE B.V.
Essebaan 11, 2908 LJ Capelle a/d IJssel, The Netherlands.
Phone: 010-4585077 Fax: 010-4585045 www.topconeurope.com
TOPCON BELGIUM
Preenakker 8, 1785 Merchtem, Belgium
Phone: 052-37.45.48 Fax: 052-37.45.79
TOPCON DEUTSCHLAND G.m.b.H.
Weidkamp 180 45356 Essen, Germany.
Phone: 001-49-201-8619-150 Fax: 001-49-201-8619-148
TOPCON S.A.R.L.
89, rue de Paris 92585 Clichy, Cedex France.
Phone: 01-4106 9494 (MEDICAL) 1-4106 9490 (TOPOGRAPHIE)
Fax: 01-47390251

TOPCON ESPAÑA S.A.
HEAD OFFICE
Frederic Mompou 5, ED. EUR03 08960, Sant Just Desvern Barcelona, Spain.
Phone: 93-473-4057 Fax: 93-473-3932
MADRID OFFICE
Avenida Burgos,16E, 1° 28036, Madrid, Spain.
Phone: 91-302-4129 Fax: 91-383-3890
TOPCON SCANDINAVIA A. B.
Neongatan 2 S-43151 Molndal Sweden.

Phone: 001-46-31-710920 Fax: 001-46-31-7109249

TOPCON (GREAT BRITAIN) LTD.
Topcon House Kennet Side, Bone Lane Newbury Berkshire RG14 5PX
U.K. Phone: 001-44-1635-551120 Fax: 001-44-1635-551170

TOPCON SINGAPORE PTE. LTD.
Alexandra Distripark Block 4, #05-15, Pasir Panjang Road, Singapore
118491
Phone: 2780222 Fax: 2733540 E-mail: topconts@singnet.com.sg

TOPCON AUSTRALIA PTY. LTD.
408 Victoria Road, Gladesville, NSW 2111, Australia
Phone: 02-9817-4666 Fax: 02-9817-4654

TOPCON INSTRUMENTS (THAILAND) CO., LTD.
77/162 Sinn Sathorn Tower, 37th Fl.,
Krungdhonburi Rd., Klonglonsai, Klongsarn, Bangkok 10600 Thailand.
Phone: 662-440-1152~7 Fax: 662-440-1158

TOPCON INSTRUMENTS (MALAYSIA) SDN. BHD.
Lot 226 Jalan Negara 2, Pusat Bandar Taman Melawati,
Taman Melawati, 53100, Kuala Lumpur, Malaysia.
Phone: 03-4079801 Fax: 03-4079796

TOPCON KOREA CORPORATION
2F Yooseoung Bldg., 1595-3, Seocho-Dong, Seocho-gu, Seoul, 137-876,
Korea.
Phone: 82-2-2055-0321 Fax: 82-2-2055-0319 www.topcon.co.kr

TOPCON OPTICAL (H.K.) LIMITED
2/F., Meeco Industrial Bldg., No. 53-55 Au Pui Wan Street, Fo Tan Road,
Shatin, N.T., Hong Kong
Phone: 2690-1328 Fax: 2690-2221 E-mail: sales@topcon.com.hk

TOPCON CORPORATION BEIJING OFFICE
Room No. 962 Poly Plaza Building, 14 Dongzhimen Nandajie,
Dongcheng District, Beijing, 100027, China
Phone: 10-6501-4191~2 Fax: 10-6501-4190

TOPCON CORPORATION BEIRUT OFFICE
P. O. BOX 70-1002 Antelias, BEIRUT-LEBANON.
Phone: 961-4-523525/961-4-523526 Fax: 961-4-521119

TOPCON CORPORATION DUBAI OFFICE
Offce No. 102,Khalaf Rashd AI Nayli Bldg., 245 Abu Hail Road, Deira,Dubai,UAE
Phone: 971-4-696511 Fax: 971-4-695272

TOPCON CORPORATION
75-1 Hasunuma-cho,Itabashi-ku,Tokyo,174-8580 Japan
Phone:3-3558-2520 Fax:3-3960-4214 http:// www.topcon.co.jp
64531 90170 GPT-2000

0107 (2B)



---

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