Spectra Dg711 Users Manual DG711and511_CI_12810104_0502_JP

DG711 to the manual 50c31c45-7265-4815-86fd-f6837792c733

: Spectra Spectra-Dg711-Users-Manual-528188 spectra-dg711-users-manual-528188 spectra pdf

Open the PDF directly: View PDF .
Page Count: 96

Download
Open PDF In Browser	View PDF

FO

DG711 and DG511
Pipe Laser
User Guide

Trimble Construction Division
5475 Kellenburger Road
Dayton, Ohio 45424-1099
U.S.A.
+1-937-233-8921 Phone

www.trimble.com

www.surveyinstrumentsales.com
© 2002–2007, Trimble Navigation Limited. All rights reserved.
Reorder PN 1281-0100 Rev. C (09/07)

DG711 and DG511
Pipe Laser
User Guide

F

Version 1.6
Part Number 1281-0100
Revision C
September 2007

Corporate Office
Trimble Construction Division
5475 Kellenburger Road
Dayton, Ohio 45424-1099
U.S.A.
(800) 538-7800 (Toll Free in U.S.A.)
+1-937-245-5600 Phone
+1-937-233-9004 Fax
www.trimble.com
Copyright and Trademarks
© 2002-2007, Trimble Navigation
Limited. All rights reserved.
The Globe & Triangle logo, and
Trimble are trademarks of Trimble
Navigation Limited.
All other trademarks are the property
of their respective owners.
Release Notice
This is the September 2007 release
(Revision C) of the DG711 and DG511
Pipe Laser User Guide, part number
1281-0100. It applies to version 1.6 of
the DG711 and DG511 Pipe Laser
software.
The following limited warranties give
you specific legal rights. You may have
others, which vary from
state/jurisdiction to state/jurisdiction.
Hardware Limited Warranty
Trimble Navigation Limited warrants
that this hardware product (the
“Product”) will perform substantially
in accordance with published
specifications and be substantially free
of defects in material and
workmanship for a period of one (1)
year (DG511 Pipe Laser) and two (2)
years (DG711 Pipe Laser) starting
from the date of delivery. The warranty
set forth in this paragraph shall not
apply to software products.
Software License, Limited
Warranty
This Trimble software product,
whether provided as a stand-alone
computer software product, built into

hardware circuitry as firmware,
embedded in flash memory, or stored
on magnetic or other media, (the
“Software”) is licensed and not sold,
and its use is governed by the terms of
the relevant End User License
Agreement (“EULA”) included with
the Software. In the absence of a
separate EULA included with the
Software providing different limited
warranty terms, exclusions and
limitations, the following terms and
conditions shall apply. Trimble
warrants that this Trimble Software
product will substantially conform to
Trimble’s applicable published
specifications for the Software for a
period of ninety (90) days, starting
from the date of delivery.
Warranty Remedies
Trimble's sole liability and your
exclusive remedy under the warranties
set forth above shall be, at Trimble’s
option, to repair or replace any Product
or Software that fails to conform to
such warranty ("Nonconforming
Product") or refund the purchase price
paid by you for any such
Nonconforming Product, upon your
return of any Nonconforming Product
to Trimble in accordance with
Trimble’s standard return material
authorization procedures.
Warranty Exclusions and
Disclaimer
These warranties shall be applied only
in the event and to the extent that the
Products and Software are properly
and correctly installed, configured,
interfaced, maintained, stored, and
operated in accordance with Trimble's
relevant operator's manual and
specifications, and; (ii) the Products
and Software are not modified or
misused. The preceding warranties
shall not apply to, and Trimble shall
not be responsible for defects or
performance problems resulting from
(i) the combination or utilization of the
Product or Software with hardware or

software products, information, data,
systems, interfacing or devices not made,
supplied or specified by Trimble; (ii) the
operation of the Product or Software under
any specification other than, or in addition
to, Trimble's standard specifications for its
products; (iii) the unauthorized
modification or use of the Product or
Software; (iv) damage caused by accident,
lightning or other electrical discharge,
fresh or salt water immersion or spray; or
(v) normal wear and tear on consumable
parts (e.g., batteries). Trimble does not
warrant or guarantee the results obtained
through the use of the Product.
THE WARRANTIES ABOVE STATE

TRIMBLE'S ENTIRE LIABILITY, AND
YOUR EXCLUSIVE REMEDIES,
RELATING TO PERFORMANCE OF THE
PRODUCTS AND SOFTWARE. EXCEPT AS
OTHERWISE EXPRESSLY PROVIDED
HEREIN, THE PRODUCTS, SOFTWARE,
AND ACCOMPANYING
DOCUMENTATION AND MATERIALS
ARE PROVIDED “AS-IS” AND WITHOUT
EXPRESS OR IMPLIED WARRANTY OF
ANY KIND BY EITHER TRIMBLE
NAVIGATION LIMITED OR ANYONE
WHO HAS BEEN INVOLVED IN ITS
CREATION, PRODUCTION,
INSTALLATION, OR DISTRIBUTION
INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE, TITLE, AND
NONINFRINGEMENT. THE STATED
EXPRESS WARRANTIES ARE IN LIEU

OF ALL OBLIGATIONS OR
LIABILITIES ON THE PART OF
TRIMBLE ARISING OUT OF, OR IN
CONNECTION WITH, ANY
PRODUCTS OR SOFTWARE. SOME
STATES AND JURISDICTIONS DO
NOT ALLOW LIMITATIONS ON
DURATION OR THE EXCLUSION OF
AN IMPLIED WARRANTY, SO THE
ABOVE LIMITATION MAY NOT
APPLY TO YOU.

TRIMBLE NAVIGATION LIMITED IS
NOT RESPONSIBLE FOR THE
OPERATION OR FAILURE OF
OPERATION OF GPS SATELLITES OR
THE AVAILABILITY OF GPS
SATELLITE SIGNALS.
Limitation of Liability
TRIMBLE’S ENTIRE LIABILITY UNDER
ANY PROVISION HEREIN SHALL BE
LIMITED TO THE AMOUNT PAID BY YOU
FOR THE PRODUCT OR SOFTWARE
LICENSE. TO THE MAXIMUM EXTENT
PERMITTED BY APPLICABLE LAW, IN
NO EVENT SHALL TRIMBLE OR ITS
SUPPLIERS BE LIABLE FOR ANY
INDIRECT, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES
WHATSOEVER UNDER ANY
CIRCUMSTANCE OR LEGAL THEORY
RELATING IN ANY WAY TO THE
PRODUCTS, SOFTWARE AND
ACCOMPANYING DOCUMENTATION
AND MATERIALS, (INCLUDING,
WITHOUT LIMITATION, DAMAGES FOR
LOSS OF BUSINESS PROFITS, BUSINESS
INTERRUPTION, LOSS OF BUSINESS
INFORMATION, OR ANY OTHER
PECUNIARY LOSS), REGARDLESS
WHETHER TRIMBLE HAS BEEN
ADVISED OF THE POSSIBILITY OF ANY
SUCH LOSS AND REGARDLESS OF THE
COURSE OF DEALING WHICH DEVELOPS
OR HAS DEVELOPED BETWEEN YOU
AND TRIMBLE. BECAUSE SOME STATES
AND JURISDICTIONS DO NOT ALLOW
THE EXCLUSION OR LIMITATION OF
LIABILITY FOR CONSEQUENTIAL OR
INCIDENTAL DAMAGES, THE ABOVE
LIMITATION MAY NOT APPLY TO YOU.

NOT WITHSTANDING THE ABOVE, IF
YOU PURCHASED THIS PRODUCT OR
SOFTWARE IN THE EUROPEAN
UNION, THE ABOVE WARRANTY
PROVISIONS MAY NOT APPLY.
PLEASE CONTACT YOUR DEALER
FOR APPLICABLE WARRANTY
INFORMATION.

Notices
FCC Decleration of Confirmity
Class A Statement – Notice to Users.
This equipment has been tested and
found to comply with the limits for a
Class A digital device, pursuant to Part
15 of the Federal Communication
Commission (FCC) rules. These limits
are designed to provide reasonable
protection against harmful interference
in a commercial environment. This
equipment generates, uses, and can
radiate radio frequency energy and, if
not installed and used in accordance
with the instructions, may cause
harmful interference to radio or
television communication. However,
there is no guarantee that interference
will not occur in a particular
installation. If this equipment does
cause harmful interference to radio or
television reception, which can be
determined by turning the equipment
off and on, the user is encouraged to try
to correct the interference by one or
more of the following measures:
– Reorient or relocate the receiving
antenna.
– Increase the separation between the
equipment and the receiver.
– Connect the equipment into an
outlet on a circuit different from that
to which the receiver is connected.
– Consult the dealer or an experienced
radio/TV technician for help.
Changes and modifications not
expressly approved by the
manufacturer or registrant of this
equipment can void your authority to
operate this equipment under Federal
Communications Commission rules.
Canadian regulatory notice
The digital apparatus does not exceed
the Class AA limits for radio noise for
digital apparatus set out in the Radio
Interference Regulation of the
Canadian Department of
Communications.

EEC regulatory notice
Application of
89/336/EEC
Council Directive(s)
Manufacturer’s name Trimble Navigation
Limited
Manufacturer’s
address

5475 Kellenburger Road
Dayton, Ohio
45424-1099, U.S.A.

European
representative
address

Trimble GmbH
Am Prime Parc 11
65479 Raunheim,
Germany

Model number(s)

DG711 and DG511

Conformance to
directive(s)

EC Directive 89/336/EEC
using EN55022 and
EN50082-1

Equipment
type/environment

ITE/residential,
commercial and light
industrial

Product standards

Product meets the limit B
and methods of EN55022
Product meets the levels
and methods of
IEC 801-2, 8 kV air, 4 kV
contact
IEC 801-3, 3 V/m 26 to
1000 MHz 80%, @ 1 kHz
IEC 801-4, ac leads 2 kV

Notice to Our European Union Customers
For product recycling instructions and more information,
please go to: www.trimble.com/environment/summary.html

Recycling in Europe
To recycle Trimble WEEE,
call: +31 497 53 2430, and
ask for the "WEEE associate," or
mail a request for recycling instructions to:
Trimble Europe BV
c/o Menlo Worldwide Logistics
Meerheide 45
5521 DZ Eersel, NL

Safety Information
For detailed installation and operating instructions, follow the instructions
given in this manual for this laser.

Laser Safety

0.0.1

The maximum radiant power
output of this laser is less than
5 mW. Use only the targets
supplied with this product.
Controls are listed on the radiation
control drawings.

C

Warning – Use of controls
or adjustments
performance of
procedures other than
those specified may result
in higher dosage of laser
exposure.

To help you comply with your
government regulations, a laser
safety kit is supplied with every
laser. This kit contains operator
qualification cards and a sign that
should be posted near the laser
whenever it is in use.

As with any visible laser device,
observe the following safety rules:
• Never look directly into a laser
beam or point the beam into the
eyes of others. Set the laser at a
height that prevents the beam from
shining directly into people’s eyes.
• Do not remove any warning
signs from the laser.
• Make sure that only properly
trained people use this product.
• If service is required, which
results in the removal of the outer
protective cover, factory-trained
personnel must perform this.

Certification

0.0.2

The IEC and the United States
Government Center of Devices for
Radiology Health (CDRH) has
classified this laser as a Class
3R/3A laser product. This laser
complies with IEC/EN
60825-1:2001, CDRH 21 CFR
1040.10 and 1040.11.

Queries

0.0.3

Address any questions you may
have about laser safety to:
Trimble
5475 Kellenburger Road
Dayton, Ohio 45424-1099
U.S.A.
Attention: Quality Assurance
Group, Laser Safety Officer
Phone (937) 233-8921 ext 824 or
(800) 538-7800
Fax (937) 233-9661

Labels

0.0.4

The labels required for this product
are:
Certification and Identification:

Non-Interlocked Protective
Housing:
DANGER
LASER LIGHT
WHEN OPEN.
AVOID DIRECT
EYE EXPOSURE

Danger Logotype:

Battery:
DO NOT OPEN
NON-REPLACEABLE BATTERIES
CHARGING TEMPERATURE
RANGE 0˚C TO 25˚C

Aperture:

Warning and
Cautions

0.0.5

Warnings and Notes in the text
indicate a level of danger or
concern. Ensure that you follow the
instructions that accompany these
alerts:

C

Warning – A Warning
indicates a hazard or an
unsafe practice that could
result in minor injury or
property damage.

Note – A Note indicates important
information unrelated to safety.

Contents
1

Introduction
Claim for Damage in Shipment . . . . . . . . . . . . . . 6
Owner’s Record . . . . . . . . . . . . . . . . . . . . . . 6

2

Features and Functions
Laser . . . . . . . . . . . . . . . . . . . . . . .
Remote Controls . . . . . . . . . . . . . . . . .
Model RC501, 3-Button Remote Control
Model RC502, 7-Button Remote Control

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

. 7
10
10
11

Preparation Before Operation
Powering the Laser. . . . . . . . .
Ni-MH Batteries . . . . . .
External Power Cable P21 .
Optional Features . . . . . . . . .

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

13
13
16
18

3

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

4

Getting Started
Optional Features Operating Instructions . . . . . . . . 24

5

Applications and Setups
Grade . . . . . . . . . . . . . . . . . . . . .
Elevation . . . . . . . . . . . . . . . . . . .
Line. . . . . . . . . . . . . . . . . . . . . .
Setup, Step-by-Step . . . . . . . . . . . . .
Set Grade . . . . . . . . . . . . . . .
Set Elevation for Small In-the-Pipe or
Pre-cast Inverts . . . . . . . . . .
Elevation of Flat Bottom Manholes .

.
.
.
.
.

.
.
.
.
.

.
.
.
.
.

.
.
.
.
.

.
.
.
.
.

.
.
.
.
.

30
30
31
31
31

. . . . . . 32
. . . . . . 34

DG711 and DG511 Pipe Laser User Guide

i

Contents

1230/1237 Heavy Duty Invert Plate . . . . .
1239 Universal Fixed Pole . . . . . . . . . .
Setting Line . . . . . . . . . . . . . . . . . .
First Point Setup (Using Plumb-bob). . . . .
1211 Laser Plummet Line Setting . . . . . .
Second Far-Point Alignment . . . . . . . . .
Setting Line with the Line Set/Check Feature
Activating the Cross Axis Roll Option . . . .
Activating Line Set/Check Raise . . . . . . .
Activating Line Set/Check Lower . . . . . .
Large Pipe . . . . . . . . . . . . . . . . . .
In a Manhole . . . . . . . . . . . . . . . . .
Open Excavations. . . . . . . . . . . . . . .
Over the Top . . . . . . . . . . . . . . . . .
6

ii

.
.
.
.
.
.
.
.
.
.
.
.
.
.

34
35
41
41
43
43
44
44
45
46
47
48
51
52

DG511/711 Additional Accessories
1211 Laser Plummet . . . . . . . . . . . . . . . . . . .
1238/1249 Mounting Plates . . . . . . . . . . . . . . .
1244 and 1244-1 T-Bars . . . . . . . . . . . . . . . . .
Features . . . . . . . . . . . . . . . . . . . . . .
Setup Instructions. . . . . . . . . . . . . . . . .
Pipe Targets . . . . . . . . . . . . . . . . . . . . . . .
Through the Pipe Applications . . . . . . . . . .
Over the Top Applications . . . . . . . . . . . .
Model 936 Adjustable Pipe Target . . . . . . . .
Model 956 Optically Enhanced Universal Target
Model 1212 LineLevel . . . . . . . . . . . . . .
1232 Precast Invert Adapter . . . . . . . . . . .
Model 1214 Line String Adapter . . . . . . . . .

55
56
56
57
59
60
60
61
62
63
63
64
65

DG711 and DG511 Pipe Laser User Guide

.
.
.
.
.
.
.
.
.
.
.
.
.
.

Contents

7

Refraction
Model 929 Blower Operating Instructions . . . . . . . . 69

8

DG511/711 Troubleshooting

9

Calibration
Checking the Calibration .
Adjusting the Calibration
Grade Check . . . . . . .
Example. . . . . .

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

.
.
.
.

75
77
78
79

10

Maintenance and Care
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Battery Disposal . . . . . . . . . . . . . . . . . . . . . 82
System Cleaning . . . . . . . . . . . . . . . . . . . . . 82

11

Laser Specifications
Request for Service and Parts . . . . . . . . . . . . . . 86

DG711 and DG511 Pipe Laser User Guide

iii

Contents

iv

DG711 and DG511 Pipe Laser User Guide

Introduction

1

CHAPTER

1
Thank you for choosing from the
Trimble family of precision pipe
lasers. You’ve just made a wise
investment in field-proven products
made by Trimble, the world’s
leading manufacturer of laserbased leveling, alignment, and
grade-control systems.
The pipe laser is an easy-to-use
tool that provides underground
contractors line, elevation, and
grade control for installing storm,
sanitary, or other gravity-flow pipe.
This system can also be used for
tunneling, boring, pipe alignment,
or any other application requiring
line, elevation, and grade control.

The pipe laser projects a highly
visible red beam of laser light in a
direction at a predetermined
(grade) for the alignment of
gravity-flow pipe. The laser light is
intercepted by a target. To align the
pipe, you need to position it so that
the pipe laser’s beam is centered in
the target.

DG711 and DG511 Pipe Laser User Guide

5

1

Introduction

Included in this manual is
information about setting up,
using, maintaining, and
troubleshooting the laser system.
Use the manual now to learn basic
skills, and use it later for reference.
For the best performance of your
laser system, follow the
maintenance and care
recommendations in this manual.
Be sure to keep this manual in a
convenient place for easy
referencing.
Your comments and suggestions
are welcome; please call the
Trimble Construction Division
listed below for your local,
authorized Trimble office.
Trimble Construction Division
5475 Kellenburger Road
Dayton, Ohio 45424-1099
U.S.A.
Phone: (937) 245-5600
(800) 538-7800
Fax: (937) 233-9004
www.trimble.com

Claim for Damage
in Shipment
1.1
The pipe laser system generally
includes a pipe laser, remote
control, laser target, optional
external power cable, operator’s
manual, laser safety kit, carrying
case, rechargeable batteries, and
battery recharger. The components
vary depending on the system that
you purchase.
You should inspect your pipe laser
system as soon as you receive it. It
has been packaged for safe
delivery. If it is damaged in any
way, immediately file a claim with
the carrier or, if insured separately,
with the insurance company.

Owner’s Record

1.2

Be sure to record the serial number
of each component in the space
provided below. Refer to these
numbers if you need to contact
your Trimble dealer regarding any
of these products.
Serial Number________________
Model #

6

DG711 and DG511 Pipe Laser User Guide

________________

Features and
Functions

Laser

CHAPTER
2

2

2.1

1 Beam-Exit Window – provides
a clear window for the laser beam
to exit the pipe laser.

3
4
2

Front and Rear Remote
Receiver Window – receives
signals from models RC501 and
RC502 Remote Control to perform
various keypad functions.
2

3 Line-Axis Pivot Marker and
LED – identifies the pivot point for
the pipe laser’s line system. The
LED lights for 15 minutes after
turning on the pipe laser or
pressing a control-panel button.
The LED also allows you to align a
transit over the top of the pipe
laser.

20

1

4 Alignment Markers –
correspond with the line system of
the pipe laser. Use them with the
Line Center feature to align the
laser with a distant control point.

DG711 and DG511 Pipe Laser User Guide

7

2

Features and Functions

5 Liquid Crystal Display (LCD)
– shows the power, grade, battery,
out-of-level, line position, and
status of the pipe laser.

11 Positive Grade LED – lights
green to show that you have
entered a positive grade into the
pipe laser.

6 Backlight/Lock Button –
activates the LCD’s backlight and
line-pivot LED. If you
simultaneously press this button
along with one of the line control
or grade buttons, it locks/unlocks
the control panel, so that the grade
and line system are not
unintentionally changed.

12 Increase Button – increases the
grade.1 To zero the grade and
change the grade in quick change
mode, press and hold this button
simultaneously with the decrease
button.

Power Button – turns the pipe
laser on/off. Press and hold the
button for about 2 seconds to turn
the unit off.
7

2

8 Left Line-Control Button –
moves the laser beam to the left1.
To center the line, this button has to
be pressed simultaneously with the
right line.

Right Line-Control Button –
moves the laser beam to the right1.
To center the line, this button has to
be pressed simultaneously with the
left line.

5
11

10

6

8

1.

8

7

12 13

9

10 Negative Grade LED – lights
red to show that you have entered a
negative grade into the pipe laser.

9

14

13 Decrease Button – decreases
the grade1. To zero the grade and
change the grade in quick change
mode, press and hold this button
simultaneously with the increase
button.

Use this button in combination with others for further operations.

DG711 and DG511 Pipe Laser User Guide

Features and Functions

14 External Power Receptacle –
allows the pipe laser to be powered
by an optional external 6–16 VDC
power source.

2

19 20
2

17

15 5/8-11 Threaded Mount –
allows the pipe laser to be attached
to various setup accessories.
16 Grade-Axis Pivot Marker –
identifies the pivot point for the
pipe laser’s grade system.

16

17 Battery Pack – contains nonreplaceable Ni-MH batteries, or a
pack that can hold four replaceable
D-Cell alkaline batteries to power
the pipe laser (depending on
model).

18

15

18 Handle – allows you to carry
the pipe laser easily and provides a
safety-rope tie-off.
19 Armor Plated Housing – plated
with a special, hardened military
material for unsurpassed
ruggedness and reliability.
20 Protective Rubber Bumper –
protects the front end of the unit by
safeguarding the exit window.

DG711 and DG511 Pipe Laser User Guide

9

2

Features and Functions

Remote Controls

2.2
5
4

Model RC501, 3-Button
Remote Control
2.2.1
1 Power – turns the pipe laser
on/off. Press and hold the button
for about 2 seconds to turn the unit
off.

Left Line-Control Button –
allows you to move the laser beam
to the left.
2

2

3 Right Line-Control Button –
allows you to move the laser beam
to the right.

Note – Line Center – Press Left
Line-control and Right
Line-Control simultaneously to
center the line.
4 Status LED - flashes four times
per second when a line button is
pressed or once per second to
indicate that the internal battery is
low.
5 Emission Window – provides
an opening for the infrared signals
to exit from so that the remote
control and pipe laser can
communicate with each other.

10

DG711 and DG511 Pipe Laser User Guide

3

1

Features and Functions

Model RC502, 7-Button
2.2.2
Remote Control
1 Power – turns the pipe laser
on/off. Press and hold the button
for about 2 seconds to turn the unit
off.
2 Grade-Enable LED – flashes
when the grade-enable function is
activated.
3 Grade-Enable Button –
activates/deactivates the increase
and decrease button. Deactivating
the grade-enable function prevents
the pipe laser grade value from
accidentally being changed.
4 Backlight/Lock Button –
activates the pipe-laser LCD’s
backlight. If this button is pressed
simultaneously with one of the line
control or grade buttons, it
locks/unlocks the control panel so
that the line and grade system do
not get accidentally changed.
5 Decrease Button – allows you
to decrease the grade.

Left Line-Control Button –
allows you to move the laser beam
to the left.
6

Increase Button – allows you to
increase the grade.
7

8

2

10

7

6

9

5
4

1

11

2

3

8 Status LED – flashes four times
per second when a control button is
pressed or once per second to
indicate that the internal battery is
low.
9 Right Line-Control Button –
allows you to move the laser beam
to the right.
10 Emission Window – provides
an opening for the infrared signals
to exit from so that the remote

DG711 and DG511 Pipe Laser User Guide

11

2

Features and Functions

control and pipe laser can
communicate with each other.
11 Grade Bump – If the Grade
Enable button and either Grade
button are pressed simultaneously,
the grade changes by one
increment. This function enables
small grade changes for matching
to existing grade.

12

DG711 and DG511 Pipe Laser User Guide

Preparation
Before
Operation

Powering the
Laser
Ni-MH Batteries

CHAPTER

3

3

clockwise.
3.1

3.1.1

Installing/Removing the
batteries
1 Turn the battery-pack knob
counterclockwise. Lift the battery
pack from the pipe laser.

Plug the battery-pack in place
and turn the battery knob
2

Optional Alkaline Battery
Pack
1 Turn the battery-pack knob
counterclockwise. Lift the battery
pack from the pipe laser.
2 Pull out on the top of the side
clips then push down on them to
release them from the side-clip
catches.

DG711 and DG511 Pipe Laser User Guide

13

3

Preparation Before Operation

3 Pull on the top housing to
separate it from the bottom
housing. Make sure to detach
latches from bottom housing.
4

7 Put the battery pack in place
and turn the battery-pack knob
clockwise.

Install/remove the batteries.

Note – When installing the
batteries, ensure that you take note
of the positive (+) and negative (-)
diagram inside of the housing.
Note – The pipe laser has reverse
polarity protection. If the batteries
are put in wrong, no damage
occurs to the pipe laser but it does
not work. Allow it one minute to
recover after the batteries have
been installed correctly.
5 Put the top housing back on the
bottom housing.

6
6 Position the side clips so that
they hold the top and bottom
housings together securely.

14

DG711 and DG511 Pipe Laser User Guide

Preparation Before Operation

3

Smart Charger
The charger, to be used ONLY with the Ni-MH battery pack, starts
charging automatically as soon as a battery pack is installed and the charger
is plugged in. The LEDs on the charger indicate the condition shown in
Table 3.1.
Table 3.1

LED condition

LED condition

Description

Red LED On

Batteries are charging

Green LED on

Batteries are fully charged, and the charger has
switched to trickle charge

Flashing red LED

Battery-contact detection (test phase)
Battery-pack reversed
Battery pack broken, open or unsuitable cells
The batteries are discharging after pressing the
discharge button

Red LED
Green LED

Discharge
Button

Discharge Button: Pressing the
button for approximately 2 seconds
the charger automatically
discharges the battery and switches
over to charging. The process of
discharging the battery before
charging should be performed
every three months to help prevent
loss of battery capacity due to
frequent partly discharging.

DG711 and DG511 Pipe Laser User Guide

15

3

Preparation Before Operation

Charging Time:
Table 3.2 shows the approximate charging time for 4 to10 batteries with a
7500 mAh capacity.
Table 3.2

Charging time

# of Cells

Cell Capacity

Approximate Charging Time

4

7500 mAh

10 Hours with smart charger

4

7500 mAh

14 Hours with 12V Cigarette Lighter
Charger Model P22

Recharging the batteries
Note – A sealed Ni-MH battery
pack is offered in most standard
models (P23/P23B).
1 Turn the battery-pack knob
counterclockwise. Lift the battery
pack from the pipe laser.
Plug the battery recharger's
single-socket plug into the battery
pack's recharging receptacle.
2

3 Plug the battery recharger into
an appropriate outlet.

Note – The charger takes 10 hours
to charge the batteries to full
capacity.
Note – To extend battery life, the
charger discharge function should
be performed after every three
months of charging.

16

C

Warning – Do not charge
the batteries above 45°C
(113°F).

External Power Cable
P21

3.1.2

In case the internal batteries
become discharged and you do not
have spare batteries available, you
can also power the pipe laser using
an optional external power cable.
This can be achieved by using a
DC regulated automotive or
motorcycle battery with the
supplied optional external power
cable on some models. The internal
batteries will not recharge while
you’re using the external power
cable.

DG711 and DG511 Pipe Laser User Guide

Preparation Before Operation

While using the optional external
power cable and 12-V DC battery
to power the pipe laser, you can
remove the internal batteries and
the pipe laser will continue to
operate. The battery pack however
has to be in place in order to cover
the contacts.
Connecting/Disconnecting
the external power cable

C

C

Warning – To avoid
damaging the pipe laser
and to prevent the
possibility of creating a
spark at the battery, make
sure the pipe laser is off
before connecting/
disconnecting the external
power cable to/from the
pipe laser.

Warning – Do not
connect the pipe laser to a
power generator where
over-voltage can occur. Do
not start the vehicle while
the pipe laser is
connected to the external
battery.

C

3

Warning – An electrical
shock risk may occur if
you connecting/
disconnecting the power
plug or power cable from
the pipe laser with wet
hands. Make sure your
hands are dry when
performing this task.

1 Turn the external-powerreceptacle cap counterclockwise
enough to remove it from the
external power receptacle.
Removing the cap exposes the
receptacle.
2 Connect the alligator clips to a
12-V dc automotive or motorcycle
battery noting the correct polarity
(red = positive, black = negative).
3 Insert the plug into the
receptacle on the laser.
4 To disconnect the external
power cable from the pipe laser,
remove the plug from the pipe laser
first and then remove the alligator
clips from the battery.

DG711 and DG511 Pipe Laser User Guide

17

3

Preparation Before Operation

Optional Features 3.2
The DG511/711 has various
optional features that your
salesman or service personnel may
configure according to your
individual needs.
For more information, contact your
Trimble dealer.

18

DG711 and DG511 Pipe Laser User Guide

Getting Started

4

CHAPTER

4
Press the On/Off button to turn on the Laser. Press and hold the button for
about 2 seconds to turn the unit off.
If your laser displays a language other than what you need, consult your
salesman or service center for re-configuration.
The following languages are available:
•

English

•

Dutch / Netherlands

•
•

French / Francais
German / Deutsch

•

Italian / Italiano

•

Japanese

•

Portuguese

•

Spanish / Espanol

•

Swedish /Svensk

•

Finnish / Suomi

DG711 and DG511 Pipe Laser User Guide

19

4

Getting Started

Table 4.1 contains a list of the DG511/711 feature options.
Table 4.1

DG511/711 feature options

DG711

DG511

Main
Features
Options

Description

9

9

Service
Check

Selects user calibration interval reminder

9

9

Grade
Display

Floating

Displays three (3) significant
digits on grades less than
10%, 2 digits on grades
greater than 10%
Example: 1.234% 12.34%.

Fixed

Displays two (2) digit grade.
1.23% or 12.34%

Per Mille

Displays grade in millimeters
per meter.
12.34‰

Rise/Run Displays grade as Rise / Run =
Slope
1.234 rise over 100 ft run

9

20

9

Grade
Entry

Step and
Go

“Step” through grade with
single grade button actuation
or “Go” through grade changes
at an increasing rate.

Digit
Select –

Enables an individual grade
“Digit” to be “Selected” and
changed until the required
grade is entered.

DG711 and DG511 Pipe Laser User Guide

Getting Started

Table 4.1

DG511/711 feature options (Continued)

DG711

DG511

9

9

9

9

9
9

9

9
9

4

9

9

Main
Features
Options

Description

Quick
Grade
Mode
(Grade
Zero)

Enables instant resetting of the grade to
“Zero” by holding both grade buttons
simultaneously. Continuous holding of
both grade buttons puts the unit in Quick
Grade mode.

Grade
Lock

Prevents any changes to the grade
system.

Line
Set/Check

Moves the laser vertically to its maximum
limit, which aids in setting line.

Language

Sets user’s local language. For more
information, see page 19.

Line Alert

Flashes the laser beam two times per
second if the unit is disturbed after a 5
minute set up period.

Line
Center

Automatically centers Line system when
line is moved to a reference point.

Line Limit

Enables complete movement of the laser
to the left or right line limit.

9

9

Line Lock

Locks out line system controls once the
required line setting is reached.

9

9

Low Batt
Warning

Flashes laser two times a second
indicating the low battery condition.

DG711 and DG511 Pipe Laser User Guide

21

4

Getting Started

Table 4.1

DG511/711 feature options (Continued)

DG711

DG511

Main
Features
Options

Description

9

9

Steep
Grade

Disables the self-leveling system but
keeps the laser beam turned on for
applications where you need to manually
point the laser beam at steeper grades
than allowed by the self-leveling system.

9

9

Name

Displays owner’s name as entered by local
dealer.

Power
Saver
(Standby)

Turns the laser beam off when not being
used to conserve battery life, but keeps all
other systems operational.

Roll Vial
Warn

Flashes the laser beam once per second
and the LCD displays that the unit is
beyond its roll leveling range.

Security

When active, the Laser prompts you for a
four-digit password before it will operate.
An incorrect password turns the unit off.

9
9

9

9

22

9

9

Status

When activated, the LCD indicates which
functions have been activated and
displays the status of those activated
functions.

9

9

Auto Shut
Down

The unit automatically turns off after 15
minutes of an out-of-level condition.

9

9

Calibration Changes factory default calibration
Option
settings.

DG711 and DG511 Pipe Laser User Guide

Getting Started

Table 4.1
DG711

DG511/711 feature options (Continued)
DG511

9

9
9

4

9

Main
Features
Options

Description

Grade
Bump

The RC502 Remote Control can be used
to change current grade setting by one
value where matching of an existing grade
is required.

Rental
Timer

Shows the number of hours the unit was
rented. It can be set to 00000 hours for
new rental customers.

Line Scan

Causes the line system to move completly
to the left or right limit without the need for
the operator to conntinuously hold down
the line switches.

DG711 and DG511 Pipe Laser User Guide

23

4

Getting Started

Optional Features Operating Instructions4.1
Table 4.2 details operation instructions for the optional features.
Table 4.2

Optional features

Option

Operating Instructions
User preferences

Language

No instructions required.

Service Check

At the preset time (3, 6, 12, or 24 months) a message
will appear on the display informing the user that a unit
inspection is recommended.

System Status

Quickly press and release the ON/OFF button to display
the system's status.

Name

The entered name will appear for 3 seconds when first
turned on.

Security

The selected 4-digit password must be entered when
prompted on power up, or the laser will turn itself off.

24

DG711 and DG511 Pipe Laser User Guide

Getting Started

Table 4.2
Option

4

Optional features (Continued)
Operating Instructions
Line Preferences

Line Set / Check 1

The manhole should be placed and dirt for the 1st 2
pipe joints excavated. A stake indicating the pipeline
direction should be placed at the end of the
excavation (usually this is done when the job is
initially laid out).

2 Place the unit in the manhole outlet, without the
first pipe joint installed.
3 To adjust the laser before line set, at the laser
press and release the ON/OFF and “+” GRADE
buttons (buttons 3 and 6) in sequence. Adjust the
roll of the unit until the roll indicator is centered.
Press and release the ON/OFF button to resume
normal operation.
4 To start line set using the remote, first press and
release the grade enable key. Then,
simultaneously, press and release the ON/OFF
and "+" GRADE button. Once the laser beam
approaches the line grade stake, use the remote
control to adjust the beam up or down (Buttons 3
and 4) or left and right (buttons 2 and 5) until it is
centered on the line stake.
5 Press and release the ON/OFF button on the
remote (button 6) to take the unit out of the line
set/check mode and resume normal operation at
your desired grade. Setup is complete.

DG711 and DG511 Pipe Laser User Guide

25

4

Getting Started

Table 4.2

Optional features (Continued)

Option

Operating Instructions

Line Alert

The laser beam will blink twice every second, followed
by a 1 second pause, if the laser receives a bump or
excessive vibration after its initial setup, indicating line
may need reset. To reset to normal operation, press any
button on the laser or remote control.

Line Scan

To move the line position to the extreme right or left
(such as a severe dogleg right or left manhole setup),
simultaneously press the ON/OFF and LINE RIGHT
(button 5) or LINE LEFT (button 2) buttons.

Line Reference

To set a second line point and save it, move the line to
the desired location and press line buttons (#2 and 5)
along with the decrease button (#4) and hold for 1
second. Press buttons #2 and #5 for 1 second to move
the move line to the the saved position.
Grade Preferences

Grade Display
Fixed*

Displays grade as a percent, to 2 decimal places
(1.23% or 12.34%)

Grade Display
Per Mille*

Displays grade as millimeters rise or fall in 1 meter
(12.34%o)

Grade Display
Slope*

Displays grade as the straight calculation of rise over
run (0.01234, or a 1.234 rise over a 100 run).

Grade Display*
Floating

Displays grade as a percent, to 3 decimal places under
10% and 2 decimal places at 10% and over (1.234% or
12.34%).

Note – Only one Grade Display Mode can be selected.

26

DG711 and DG511 Pipe Laser User Guide

Getting Started

Table 4.2

4

Optional features (Continued)

Option

Operating Instructions

Grade Entry,
Step and Go

Press the + GRADE (button 3) or - GRADE (button 4)
and grade will increase or decrease accordingly. The
longer each button is held down the faster grade will
increase or decrease.

Grade Entry,
Digit Select

1

Press the + GRADE (button 3) or - GRADE
(button 4) to initiate a grade change. All grade digits
will appear and the grade polarity (+ or -) sign will
blink.

2 Use the + GRADE or - GRADE buttons to change
the blinking character to the desired polarity or
digit.
3 Use the LEFT or RIGHT line buttons (button 2 or
button 4) to select which digit to change.
4 When all digits have been changed to the desired
amount, press button 1 (backlight button) to store
the new value and resume normal operation.
(Grade Zero)
Quick Change
Mode

1

Press and hold both grade buttons to zero the
grade.

2 Continuous holding of the grade buttons
increments grade in 1% increments, until 10% is
reached.
3 Once 10% is reached, grade increments in 5%
increments until 40% is reached.
4 Once 40% is reached, grade reverts to -15%.
5 Once -15% is reached, grade reverts to -10%.
6 Once -10% is reached, grade increases in 1%
increments until 0% is reached.
Once 0% is reached, the process repeats.

DG711 and DG511 Pipe Laser User Guide

27

4

Getting Started

Table 4.2

Optional features (Continued)

Option

Operating Instructions

Steep Grade

Press and hold button 1 for five seconds until “STEEP
GRADE” appears.
Use button 3 or 4 to manually point the beam up or
down, and button 2 or 5 (line buttons) to move the beam
left or right to the desired position.

Grade Bump

The RC502 Remote Control is used to change current
grade setting by one value where matching of an
existing grade is required.
Power Management

Low Battery
Warning

Flashes the laser 2 times per second to indicate
batteries are getting low.

Power Saver
(Standby)

On the RC502 remote control, press buttons 1 and 6
simultaneously. The laser beam will turn off while all
internal functions remain on, typically doubling the
battery life. To restore the laser beam to instantly begin
to work, press buttons 1 and 6 simultaneously again.

Auto Shut Down The unit automatically turns off after 15 minutes of an
out-of-level condition.

28

DG711 and DG511 Pipe Laser User Guide

Applications
and Setups

This chapter describes three
fundamentals for using the Model
DG511/711 to install gravity flow
pipe; they are Grade, Elevation,
and Line, otherwise known as
G-E-L.
To install gravity flow pipe, the
pipe is set to a percentage of
Grade that has been determined by
some engineered plans. The gravity
flow pipe is designed to be set to
some engineered Elevation.
Finally, the gravity flow pipe will
be installed between two designed
points, therefore defining Line.

CHAPTER
5

5
Manhole
stake

Manhole
stake
Line

Grade

Elevation

DG711 and DG511 Pipe Laser User Guide

29

5

Applications and Setups

Grade

5.1

Grade establishes the slope of the
pipe and is generally displayed in
percent (%). A rise of 1 m (1ft)
over a run of 100 m (100 ft ) equals
1.00%.

The process for setting up the
Model DG511/711 remains the
same. The laser beam shall be
sloped to match the plans. The
Elevation of the pipe or cut to
invert is given from the plans at
which the laser shall be used to
control that elevation, and finally
set the laser on Line to match the
orientation of the pipe run.
After all have been set, installing
pipe is accomplished by inserting a
laser target into new pipe sections
and then aligning the pipe until the
laser targets’ bull’s-eye is centered
on the beam.

30

After setting Grade into the unit,
the laser automatically slopes the
beam to match the slope of the pipe
and maintains its slope if disturbed.
Note – Some engineering plans list
the pipe’s grade on a per foot or
per meter basis. Before using your
Model DG511/711, transfer the
engineered slope information into
the Laser according to the Grade
Display Mode feature. Consult
your salesman or service personnel
for Grade Display Mode
configuration.

Elevation

5.2

Depending on the application and
jobsite conditions, you can set the
laser to an elevation that matches
the centerline of the pipe, at some
distance above the pipe’s invert, or
set it over the top of the pipe.

DG711 and DG511 Pipe Laser User Guide

Applications and Setups

When setting the laser, a surveyed
manhole grade hub must be
available to set the laser at the
proper elevation and the pipe will
be installed at the correct elevation.

Setup, Step-byStep
Set Grade

5

5.4

5.4.1

Press the positive or negative
grade button to set the Laser at the
correct grade as determined by the
engineered plans.
1

Line

5.3

Line ensures proper direction of
the pipe run between manholes
according to the engineered plans.
Once Grade, Elevation, and Line
are set, the laser will be projected
at the proper grade, elevation, and
line for the pipe run. After a little
practice, it normally takes about 5
minutes to set up the laser and start
laying pipe.

Laser beam

2 Engineering plans sometimes
list the pipe rise/fall on a per foot
or per meter basis. To ensure that
the correct grade display format is
entered into your DG511/711, see
the Grade Display mode
information in Table 4.1 on
page 20.

Pipe invert

Always constant distance

DG711 and DG511 Pipe Laser User Guide

31

5

Applications and Setups

Set Elevation for Small
In-the-Pipe or Pre-cast
Inverts
5.4.2
1 The laser automatically centers
in the 150 mm (6 inch) diameter
pipe and pre-cast inverts without
additional accessories.

3 Use the following chart to
determine how to set up the laser
so the laser beam is centered in the
following pipe sizes.

2 The laser automatically centers
in 200 mm (8 inch) diameter pipe
with the 1238 mounting plate.

Table 5.1

Mounting Plates Setups

Pipe Diameter

Required Mounting Accessories
1228

1230/1237

1238

1249

Setup

150 mm or 6 inch

None

200 mm or 8 inch

Legs Up

225 mm or 9 inch

Legs Up

250 mm or 10 inch

Legs Up

9

4

300 mm or 12 inch

Legs Down

9

5

400 mm or 15 inch

Legs Down

9

6

32

1

9

2

9

DG711 and DG511 Pipe Laser User Guide

3

Applications and Setups

5

Illustration
Setup

1228

1230/1237

1238

1249

1
2

3

4

5

6

DG711 and DG511 Pipe Laser User Guide

33

5

Applications and Setups

Elevation of Flat Bottom
Manholes
5.4.3

1230/1237 Heavy Duty
Invert Plate
5.4.4

1 When a laser is to be set on a
flat surface where the laser beam is
not centered in the pipe, use model
1230/1237 Heavy Duty Trivet
Plate and 1239 Universal Fixed
Pole.

The invert plates model 1230
(English) and 1237 (Metric) are
one piece cast aluminum support
plates that provides automatic selfcentering of the Laser in 250 mm
(10 in.), 300 mm (12 in.) or 400
mm (15 in.) pipe diameters. The
invert plates are used along with
the 1239 Universal Fixed Pole for
setups on the manhole bottom,
outside of the manhole or in pipes
larger than 400 mm (15 in.)
diameter.

2 Using this system, the elevation
of the laser beam can be set by
either measuring down from a
grade offset hub outside the trench
or up from the floor of the manhole
to the beam.
3 The 1239 Universal Fixed
Trivet has both cm/mm and
tenths/hundredths scales for setting
the beam elevation.

34

DG711 and DG511 Pipe Laser User Guide

Applications and Setups

1239 Universal Fixed
Pole

5.4.5

The 1239 Universal Fixed Pole
supports a laser at a predetermined
elevation above the invert. Use the
1239 with the 1228 Universal
Adjustable Invert Plate, 1230/1237
Heavy Duty Invert Plates, or 1244
T-Bar Assembly.

5

1239 universal
fixed pole mounted
on 1230/1237 heavy
duty invert plate

Clamp #1
Clamp #2

Features:
1 Pole Clamp #1 – slides onto the
vertical pole and is secured with
the pole clamp’s handle.
2 Top Pole Scale (TPS) –
determines the distance between
the top of the pole to the center of
the laser beam.
3 Mounting Plate Scale (MPS) –
determines the distance between
the center of the laser beam and the
bottom of the Model Mounting
Plate. This scale is represented
with down arrows next to the scale
numbers.

DG711 and DG511 Pipe Laser User Guide

35

5

Applications and Setups

Method 1: Using the Top Pole
Scale (TPS)
Grade rod set on top of the Fixed
Pole.
Note – First decide the laser
beam’s elevation above the invert.
1 Record the “cut-to-invert”
information from the grade hub.

3 Set a grade rod on top of the
Fixed Pole and record the
measurement with the automatic
level.
4 Subtract the desired laser beam
elevation above the pipe’s invert.
5

Calculate the TPS setting.

2 Set up an automatic level and
measure its elevation (HI) above
the grade hub.

Rod reading
on grade
hub
Rod reading on top
of fixed pole

HIn
Cut to invert

Laser beam distance
above invert

36

DG711 and DG511 Pipe Laser User Guide

Applications and Setups

5

The laser is now at the proper
working elevation.
Surveyor rod
Grade hub

Table 5.2

Example 1: Setting the Grade Rod on top of the Top Pole
Scale

Step

Description

Metric

Ft / Inch

Step 1

Decide what elevation the laser
beam shall be used above the
invert.

0.152 m

0.5 ft

Step 2

Record the “Cut to Invert”
information from the grade hub.

0.805 m

2.64 ft

Step 3

Measure the elevation (HI) of the
optical instrument above the
grade hub.

1.128 m

3.70 ft

Step 4

Subtract the measured distance
from the optical instrument to the
top of 1239 Universal Fixed Pole

-1.635 m

-5.38 ft

Step 5

Subtract the desired elevation of
the laser beam above the pipe’s
invert.

-0.152 m

-0.50 ft

DG711 and DG511 Pipe Laser User Guide

37

5

Applications and Setups

Table 5.2

Example 1: Setting the Grade Rod on top of the Top Pole
Scale (Continued)

Step

Description

Step 6

Calculated TPS =

Metric

Ft / Inch

0.805 m

2.64 ft

1.128 m

3.70 ft

-1.635 m

-5.38 ft

-0.152 m

-0.50 ft

0.146 m

0.46 ft

Step 7

Adjust the pole clamp until the reading edge is aligned with the
TPS reading (0.146 m or 0.46 ft)

Step 8

The laser beam is now set at your desired working elevation
(152.4 mm / 6 inches / 0.5 ft ) above the invert of the proposed
pipe.

38

DG711 and DG511 Pipe Laser User Guide

Applications and Setups

5

14.6cm (0.46')

HIn = 1.933m (6.34')
1.128m (3.70')

1.635m (5.38')

CI = 0.805m
(2.64')
0.152m (0.5')
A

Rod reading set on
top of fixed pole

A AKS = 1.933m (6.34') - 0.152m (.5') - 1.635m (5.38') = 0.146m (0.46')

Method 2: Setting Grade Rod
on Top of Laser

Rod reading on top of laser

Note – Using this method, the
offset distance of 70 mm (0.23 ft)
between the top of the Laser
housing and the center of the laser
beam will be used.
1 Decide what elevation of the
laser beam shall be used above the
invert.
2 Record the “cut-to-invert”
information from the grade hub.

DG711 and DG511 Pipe Laser User Guide

39

5

Applications and Setups

3 Set up an automatic level and
measure the elevation of the
automatic level above grade hub.

9 The laser beam is now at the
proper working elevation.
Rod reading
on grade hub

Add elevation measurement of
instrument to “cut-to-invert” from
grade hub.
4

Subtract the desired working of
elevation of laser beam above
invert.
5

HIn

Rod reading
on top of laser
Cut to invert

6 Subtract the beam offset
(70 mm / 0.23 ft).
7

Calculate new rod reading.

Laser beam distance
above invert

8 Set the rod on top of the laser
and adjust the elevation of the laser
until the correct rod reading is
observed.

Table 5.3

Example 2: Setting Grade Rod on Top of Laser

Step

Description

Metric

Ft / Inch

Step 1

Decide what elevation the laser beam
shall be used above the invert.

0.152 m

0.5 ft

Step 2

Record the “cut-to-invert” information
from the grade hub.

0.805 m

2.64 ft

Step 3

Measure the elevation (HI) of the
optical instrument above the grade
hub.

1.128 m

3.70 ft

Step 4

Add elevation measurement of
instrument to “cut-to-invert” from grade
hub.

1.635 m

5.38 ft

40

DG711 and DG511 Pipe Laser User Guide

Applications and Setups

Table 5.3

5

Example 2: Setting Grade Rod on Top of Laser

Step

Description

Metric

Ft / Inch

Step 5

Subtract the desired elevation of laser
beam above the pipe’s invert.

-0.152 m

-0.50 ft

Step 6

Subtract beam offset (70 mm / 0.23 ft).

-.070 m

-0.23 ft

Step 7

Calculated Rod Reading =

0.805 m

2.64 ft

1.128 m

3.70 ft

-0.152 m

-0.50 ft

-0.070 m

-0.23 ft

1.711 m

5.61 ft

1.711 m

5.61 ft

Step 8

Set the rod on top of the Laser and
adjust elevation until the correct rod
reading is observed.

Step 9

The laser beam is now set at your desired working elevation
(152.4 mm / 6 inches / 0.5 ft) above the invert of the proposed
pipe.

Setting Line

5.4.6

The principle for setting line is
always the same. The laser is
positioned over the starting point
of the pipe run then aimed to the
second control point on line. The
further your second point is from
the laser, the more accurate your
line will be.

First Point Setup (Using
Plumb-bob)
5.4.7
Whether using the laser in the
invert or attached to the various
mounting plates the goal is to
always set the laser’s line axis
bull’s-eye target over the vertical
centerline of the pipe.

DG711 and DG511 Pipe Laser User Guide

41

5

Applications and Setups

This is accomplished by one of the
following methods:
1 Place the bull’s-eye target
under a plumb bob that has been
transferred from an offset grade
hub.
2 If using a transit or theodolite,
align the bull’s-eye target to the
vertical cross hair of the transit’s
telescope.
3 If the bull’s-eye target cannot
be seen, use the plus sign on the
positive grade button to align the
target to the vertical cross hair of
the transit.
4 In an over-the-top setup, set the
laser on a tripod and plumb bob
them over the first grade stake.

42

DG711 and DG511 Pipe Laser User Guide

Applications and Setups

1211 Laser Plummet
Line Setting

5.4.8

The laser plummet may be used in
place of the Plumb-bob by
attaching it under the tripod or
manhole mount.
Position the laser plummet over
the laser’s bull’s-eye reflective
target into the manhole mount or
tripod replacing the 5/8 x11
attachment thread.
1

2 Quickly turn the product upside
down to activate the compensator
and turn the power switch "on".
3 If the bull’s-eye target cannot
be seen, align the Laser Plummet
to the plus sign on the positive
grade button on the keypad or
anywhere along the center of the
laser.

Second Far-Point
Alignment

5

5.4.9

Simultaneously press both Left
and Right Line buttons to center
the laser’s ±10° of line travel.
1

2 Press either Line button to align
the laser beam to the second
control point. If using a wireless
remote control, point the remote
towards the laser and press the
appropriate line button.

Note – Line speed increases the
longer you press the line button. To
slow the line speed, release the line
button then press again.
Next manhole

4 In an over-the-top setup, set the
laser on a tripod and align the
Laser Plummet over the first grade
stake.

DG711 and DG511 Pipe Laser User Guide

43

5

Applications and Setups

Setting Line with the
Line Set/Check Featu
re
5.4.10
The Line Set / Check feature,
available with the DG711, can be
used to align the beam to a forward
grade hub by moving the laser to
its maximum leveling limit then
returning it to the original grade
setting. Line Set/Check is
beneficial for setting line if a
manhole mount or transit is not
available.
Note – Before using Line
Set/Check, the Laser must be
accurately positioned for crossaxis roll to ensure that the laser
beam will track plumb. Consult
your salesman or service personnel
to activate the Line Set/Check
feature.

Activating the Cross
Axis Roll Option

5.4.11

1 Quickly press and release the
ON/OFF button to enter the Laser’s
Status mode.
2 While the Battery gauge is
displayed, press and release either
Grade button to display the Laser’s
cross axis roll position.
3 If the Laser is being used in a
pre-cast invert, roll the unit until
the cross-axis roll indicator is
centered and display indicates two
arrows pointing at each other (roll
center) instead of multiple arrows
pointing to the left or to the right.
4 Quickly press and release the
ON/OFF button to return to the
grade display.
5 If the Laser is being used with a
1228 on a flat surface, the Laser
must be attached perpendicular
(90°) to the 1228 Universal
Mounting Plate.
6 The footscrews used with the
1230/1237 plate can be used to
help center the roll indicator and
display indicates two arrows
pointing at each other.

44

DG711 and DG511 Pipe Laser User Guide

Applications and Setups

Activating Line
Set/Check Raise

5

5.4.12

Simultaneously press the
ON/OFF and the “+” Grade button
to activate Line Set/Check.
1

Note – For RC502 7-Button
Remote Control users, the ± Grade
enable key must be pressed and the
Red Grade enable LED must be
blinking before the remote will
active Line Set/Check.
2 To stop Line Set/Check as it
approaches the line point, press
either Grade button.
3 To continue raising grade,
simultaneously press the ON/OFF
and the “+” Grade button.
4 If you overshoot and wish to
lower grade, simultaneously press
the ON/OFF and the “-” Grade
button.

Grade enable key

5 Once the line position is set,
press and release the ON/OFF
button to return the laser beam to
your original grade setting.

DG711 and DG511 Pipe Laser User Guide

45

5

Applications and Setups

Activating Line
Set/Check Lower

5.4.13

1 Use Line Set/Check Lower
when the laser is set on a tripod for
over the pipe applications.

Level vial

2 Simultaneously press the
ON/OFF and the “-” Grade button
to activate Grade Lower.

Undisturbed pipe
set at correct grade
elevation & line

Laying Pipe/Setup
1 First Day Setups – Use the line
buttons to align the laser to the next
manhole.
2 Second day setups – Select a
target that can establish the
centerline or distance above the
invert in your pipe. Set the target in
the last pipe checked to the correct
grade, elevation, and line.
3 Align the laser to the target
using the line buttons on the laser
or using the wireless remote.
4 Lay Pipe – set the target in each
new section of pipe and adjust the
pipe until the laser intersects the
target’s bull’s-eye.

46

DG711 and DG511 Pipe Laser User Guide

Next manhole

Applications and Setups

Large Pipe

5

5.4.14

The laser can be set directly on the
flow line using the various
mounting plates or a 1244 T-bar for
increased stability and an
unobstructed flow line.
1 Set Grade Elevation, and Line
into the Laser for large pipe
applications.
2 Set an adjustment pipe target so
that the targets’ bull’s-eye is at the
same distance above the invert as
your laser.
3 Place the pipe target in the last
section of the pipe that has been
checked to be at the correct grade,
elevation and line.
4 Adjust the pipe target until it’s
level vial reads level.
5 Align the laser to the target’s
bull’s-eye using the line buttons on
the laser or the Wireless Remote.
6 Lay Pipe – Set the target in
each new section of the pipe and
adjust the pipe until the laser
intersects the target’s bull’s-eye
while the target is level.

Level
vial

DG711 and DG511 Pipe Laser User Guide

47

5

Applications and Setups

laser is projected down the center
of the pipe.
1 Set the laser support in the
manhole and attach it to the
support.
2 Adjust the laser to the chosen
height above the invert and on the
vertical centerline of the exit hole
for the proposed pipe.
3 Point the laser towards the next
manhole.
4 Hold an engineering rule on the
vertical centerline and adjust the
laser’s height to the desired height
above the invert.

30.5 cm pipe
(12 in.)

In a Manhole

Laser beam

5.4.15

The laser can be set up in a
manhole using a transit to
accurately set line. The transit is
plumbed over the laser on a mount
that clamps to the manhole. The

48

DG711 and DG511 Pipe Laser User Guide

30.5 cm dia
(12 in.)
15 cm radius
(6 in.)

Applications and Setups

Line (transit method)

5

an optical plummet, adjust the
horizontal arm to position the
transit’s optical plummet over
the lasers’ bull’s-eye target.
b Plumb Bob: If your transit
does not have an optical
plummet, suspend a plumb bob
from the transit, and align it
over the lasers’ bull’s-eye
target.

1 Set a manhole mount and
transit on the manhole.

2 Clamp the manhole mount base
to the side of the manhole to
establish a stable transit support.
3 Secure the vertical arm into the
manhole mount base.
4 Assemble the horizontal arm,
horizontal clamp, and vertical
support clamp to the vertical arm
and position over the top of the
laser.
5 Attach your transit to the
5/8 × 11 threaded adapter in the
horizontal arm.
6 Transit Alignment – You may
position your transit over the
laser’s bull’s-eye target in one of
the following methods:
a Use the Laser Plummet and
if your transit is equipped with

7 After rough positioning the
transit over the bull’s-eye target,
use the transit's leveling base to
accurately adjust the transit to the
bull’s-eye target.
8 Once the transit is set over the
lasers’ bull’s-eye target, sight the
transit on the centerline of the next
manhole and lock the scope on
line.

DG711 and DG511 Pipe Laser User Guide

49

5

Applications and Setups

Next manhole
B

A

Plunge the scope into the trench
and set a stake on line 6–8 m (20–
25 ft) from the first manhole.

Note – This method assumes that
the manhole was set at the correct
elevation. If there is any question
as to the manhole accuracy, check
the manhole and pipe invert
elevation and transfer an offset to
check the line of pipe entering or
exiting the manhole.
On Top of the Pipe

9

10 Use the line buttons to intersect
the stake with the laser beam.
11 Look through the transit at the
stake and readjust the beam until it
is aligned with the vertical
crosshair of the transit.

Transit
crosshairs
Laser spot
No
Yes
No

12 Lay pipe – Set the pipe target in
each new section of pipe and adjust
the pipe until it intersects the
target’s bull’s-eye.

50

Vertical centerline

1 Line – Set the laser until it is
over the vertical centerline of the
pipe and pointing toward the next
manhole.

Note – It may be necessary to
support the Laser with extra
gravel, dirt, or sub-base material.
2 Set an adjustable pipe target
(Model 936 or 956) so that the
target’s bull’s-eye is at the same
distance above the pipe as your
laser beam.

DG711 and DG511 Pipe Laser User Guide

Applications and Setups

3 Place the pipe target on top of
the last section of pipe that has
been checked to be at the correct
grade, elevation, and line.

Open Excavations

5

5.4.16

Next manhole
B

Level vial
A

Undisturbed pipe
set at correct grade
elevation & line

4 Adjust the pipe target until its
level vial reads the target is level.
5 Align the laser to the targets’
bull’s-eye using the line buttons on
the laser or the Wireless Remote.
6 Lay Pipe – Set the target on top
of each new section of pipe and
adjust the pipe until the laser
intersects the targets’ bull’s-eye
while the target is level.

1 Set a transit over the first point
on the proposed pipeline behind
the manhole where the pipe run
starts.
2 Align the transit to the next
manhole and lock the transit on
line.
3 Plunge the transit into the open
excavation where the manhole will
be placed.
4 Set the mounting plate and the
1239 Universal Fixed Pole on
stable sub-base material in the
open excavation and on line.
5 Grade – Enter grade into the
Laser.
6 Attach the laser to the 1239
Universal Fixed Pole.
7 Sight through the transit at the
laser.

DG711 and DG511 Pipe Laser User Guide

51

5

Applications and Setups

8 Adjust the laser and the
mounting plate until the bull’s-eye
target or “+” symbol on the
positive grade button is aligned
with the transit’s vertical crosshair.

Transit
crosshairs
No
Yes

Laser spot
No

9 Elevation – Determine the
correct elevation for the invert of
the proposed pipe.
10 Determine if you wish to set the

laser beam on the centerline of the
pipe or at a constant distance above
the flow line.
11 Adjust the laser until you are at
the chosen height above the invert.
12 Set an adjustable pipe target

(Model 936 or 956) so that the
target’s bull’s-eye is at the same
distance above the invert as your
laser beam.
13 Plunge the transit into the open
excavation and set a stake on line
6–8 m (20–25 ft) from the next
manhole.
14 Line – Look through the transit
at the next stake; align the laser to
the vertical crosshair of the transit
using the Line buttons on the laser
or the Wireless Remote

52

15 Lay Pipe – Set the target in
each new section of pipe and adjust
the pipe until the laser intersects
the target’s bull’s-eye while the
target is level.

Over the Top

5.4.17

The laser can be set on a tripod or
mounting plate above the
excavation on the pipe itself. A
laser target is mounted on a pole
and is adjusted to give the correct
distance from the beam to the pipe
invert. For accurate line control, a
level vial can be attached to the
pole to ensure that the target is held
vertically. This is an excellent
setup for shallow cuts for trenches
where water is present.
1 Attach the laser to a tripod
having a 5/8 inch x 11 thread.

DG711 and DG511 Pipe Laser User Guide

Applications and Setups

2 Set the tripod and laser on line
behind the first manhole and
ensure the system is level.

5

Rod reading = 6.48
Cut-to-invert = 4.51
Set to =
10.99

3 Suspend a plumb bob from the
tripod or use a Laser Plummet over
the first point.
4 Transfer the elevation into the
manhole using a level, transit, or
with your laser set to 0.00% grade.
5 Set a stake on the centerline of
the pipe so the top of the stake is at
invert elevation.
6 Use the wireless remote to
position the beam on the rod as you
take your readings.

Laser beam

7 Add your grade rod reading to
your cut-to-invert reading.
8 Set a target on rod at this
distance. For example:

10.99

Instrument method-manhole

Pipe
invert

Grade rod
reading
Grade hub
C.I.

DG711 and DG511 Pipe Laser User Guide

53

5

54

Applications and Setups

DG711 and DG511 Pipe Laser User Guide

DG511/711
Additional
Accessories

1211 Laser
Plummet

6.1

Replaces the 5/8-11 bell housing in
manhole mounts or tripods, and
provides a self plumbed laser dot
that can be quickly positioned over
the plumb point. This greatly
reduces first day setup time.

CHAPTER

6

6

Note – You must turn the 1211
upside down then right-side up just
prior to each use. For setup and
operating instructions, see the
1211 operator’s manual.

The 1211 has a self-plumbing
range of 10 degrees, a bright 635nm beam, safety lanyard, shock
bumpers, and operates off two
AAA batteries (included). The
1211 includes operating
instructions and a carrying pouch
with belt loop.

DG711 and DG511 Pipe Laser User Guide

55

6

DG511/711 Additional Accessories

1238/1249 Mounting Plates

6.2

Allows the laser to automatically center in an 200 mm (8 inch) diameter
pipe using 1238 mounting plate and 225 mm (9 inch) diameter pipe using a
1249 mounting plate.

1244 and 1244-1
T-Bars

6.3

The 1244 T-Bar is a mounting
support system for using a laser in
large diameter pipe, manholes, or
open excavated trenches where
high stability and a variable
elevation adjustment is required.

Use the 1244 with a 1239
Universal Fixed Pole for precast
invert setups for unobstructed
flowlines.
Also use the 1244 in large diameter
pipe to place the laser beam
parallel to the pipe’s centerline.

Pipe Diameter Application

Recommended T-Bar

1.07 to 2.03 m (42 – 80 inch)

1244

0.83 to 1.58 m (33 – 66 inch)

1244-1

56

DG711 and DG511 Pipe Laser User Guide

DG511/711 Additional Accessories

6

1
2
3

4

5

Note – Both models can be shortened for use in smaller diameter pipes and
manholes. The speed release handle provides 13 cm (5 inches) of fine
adjustment range.

Features

6.3.1

1 Mounting Plate – supports the
laser or the 1239 Universal Fixed
Pole.

Locking Pin – holds the
extension bar in place.
2

3 Extension Bar – allows for 25
mm (one-inch) coarse adjustments
in the T-Bar’s overall length.
4 Speed Release Handle –
tightens the T-Bar into place and
allows for quick release.

5 Horizontal Lock Knob – allows
the mounting plate to slide freely
along the extension bar and
positions the laser on line.

Reverse the Teflon reading edge
assembly when used with the
T-Bar by unthreading the three
screws fastening the assembly to
the pole clamp. Reverse the unit
wing nut capturing screw on the
pole clamp as necessary based on
whether the pole is mounted above
or below the T-Bar.

DG711 and DG511 Pipe Laser User Guide

57

6

DG511/711 Additional Accessories

Screws

Fixed pole

Locking pin
Horizontal
Adjustable
lock
pole lock

58

DG711 and DG511 Pipe Laser User Guide

Teflon
reading
edge

DG511/711 Additional Accessories

Setup Instructions

6

6.3.2

Attach the vertical pole to the
T-Bar.
1

2 Adjust the length of the T-Bar
using the locking pin to fit your
setup.

Note – The “T” section of the bar
must be vertical.
3 Use the speed release handle to
secure the T-Bar in the manhole or
large pipe at a position that enables
the vertical pole to support the
laser at the predetermined
elevation.
4 Loosen the horizontal lock
knob to allow the laser and
mounting plate to be adjusted to
the line of the pipe.

Speed release
handle

Vertical
centerline

T-bar
section
T-bar

DG711 and DG511 Pipe Laser User Guide

59

6

DG511/711 Additional Accessories

Pipe Targets

6.4

The correct target you use depends on the elevation of the laser beam above
the pipe invert and your personal preference.
Pipe Diameter Application

Recommended Pipe Target

150 – 300 mm (6 – 12 inches)

956 Target w/small Pipe Target

350 – 500 mm (15 – 21 inches)

956 Target w/large Pipe Target

400 – 800 mm (15 – 30 inches)

936 Target

greater than 800 mm (30 inches)

936 Target

Through the Pipe Applications

6.4.1

For pipes with a diameter of 500 mm (21 inches) or less, the laser beam is
normally projected on the centerline of the pipe. When the target is
calibrated to the pipe’s diameter, the target may be used in any orientation
in the pipe to maintain the target’s bull’s-eye on center with the pipe.
When the laser is set above the flow-line other than the pipe’s centerline,
the target must be leveled in the pipe. If the target is not level, the pipe may
be placed off line or grade.

60

DG711 and DG511 Pipe Laser User Guide

DG511/711 Additional Accessories

Over the Top Applications

6

6.4.2

For over the top setups you need to assemble a target from a 25 x 25cm (10
x 10 in.) red or white Plexiglas.
You need a couple of u-bolts, and a 20 mm (¾ in.) rigid or thick walled
plastic pipe of a length to match your setup.

Laser
beam

DG711 and DG511 Pipe Laser User Guide

61

6

DG511/711 Additional Accessories

Model 936 Adjustable
Pipe Target
6.4.3
The 936 Adjustable Pipe Target
centers the laser beam in 400–800
mm (15–30 in.) diameter pipes
when the target is aligned to the
scale on the target’s frame.

elevation of the beam is at some
distance above the invert other than
the pipe’s centerline.
6 Lock – secures the target frame
to a 2 x 4 when the 936 is being
used in large diameter pipe.

1 2 x 4 Mount – used where a
2 x 4 supports the target in a large
pipe when the laser beam is
400 mm (15 in.) above the pipe
inverts. Cut a 2 x 4 to a length and
place in the pipe so the 936
intersects the laser beam on the
bull’s-eye.
2 Pipe Bore Mount – used when
the laser beam is near the top of the
pipe. The target hangs upside down
in the pipe and is adjusted until the
beam intersects the target
bull’s-eye. This frees the pipe of
obstructions in the flow line.
3 Reference Arrow – calibrates
the target scales for the diameter of
pipe in which the laser is centered.
4 Target Clamps – secure the
target into position.
5 2-Way Level Vial – provides a
level reference for the 936 whether
it is used upright or inverted. A
level target is required where the

62

DG711 and DG511 Pipe Laser User Guide

3
4

6
1&2
5

DG511/711 Additional Accessories

Model 956 Optically
Enhanced Universal
Target

6

Model 1212 LineLevel 6.4.5
6.4.4

The 956 adjustable Pipe Target
centers the laser beam in 150 to
500 mm (6 to 21 inches) diameter
pipes when the proper target
element is aligned to the scale on
the target’s frame.

The 1212 LineLevel is a rugged
optical instrument that performs as
a precision automatic level and a
line transfer unit for the installation
of gravity flow pipe.
Model 1212

Model 956

DG711 and DG511 Pipe Laser User Guide

63

6

DG511/711 Additional Accessories

1232 Precast Invert
Adapter

Setup instructions
6.4.6

The 1232 Precast Invert Adapter is
used with a 1244 T-Bar and 1239
Universal Fixed Pole when the
laser is positioned slightly above
flowline of a precast invert.
Model 1232

1 Install the 1232 onto the 1239
Universal Fixed Pole.

Install these components onto a
1244 T-Bar Assembly.

2

3 Set the 1244 T-Bar with the
adjustable pole in the manhole with
the horizontal slide assembly over
the invert.
4 Adjust the elevation of the pole
clamp so the laser is placed at the
desired elevation over the flow
line.

Place a grade rod on top of the
Laser housing to set elevation.

5

64

DG711 and DG511 Pipe Laser User Guide

DG511/711 Additional Accessories

6

Model 1214 Line String
6.4.7
Adapter

5 Move your arm until the two
plumb bob strings are parallel.

The 1214 Line String Adapter is a
machined aluminum clip with an
adhesive bottom, which is applied
over the laser’s line pivot bull’s-eye
target and used with a plumb bob
for setting the laser on line.

6 Turn your hand until both
plumb bob strings are in line with
each other, and in line with the next
manhole’s hub.

Operating instructions
1 Remove the paper from the
adhesive pad on the 1214.
2 Press the 1214 over the line
pivot bull’s-eye target on the Laser
making sure the open slot is facing
the front of the Laser.
3 Loop a plumb bob string
through the slot on the 1214.
4 Standing in a manhole, or
above an open cut, loop the plumb
bob about 30 cm (one foot) over
your hand.

DG711 and DG511 Pipe Laser User Guide

65

6

DG511/711 Additional Accessories

7 Keep the strings parallel and in
line with the next manhole, and
adjust the Laser’s laser spot on line
with the two strings.

66

DG711 and DG511 Pipe Laser User Guide

Refraction

7

CHAPTER

7
1 Refraction is the bending of
light at the interface of two
substances caused by a difference
in the speed of light. Shooting a
laser beam through a pipe having
gas and varying temperatures can
be compared to shining a flashlight
beam into a pool of water and
seeing the light bend.

Refraction of the laser is
preceded by what appears to be a
flaming of the laser spot at the
edges. When this occurs, it is time
to mix the air within the pipe by
some external means such as a
blower. This occurs on sunny days
when a hot pipe is placed in a cool
ditch. The pipe bottom cools first
and the warmer air in the upper
2

half of the pipe causes the laser
beam to refract down towards the
cooler air.
3 Solvent fumes can also cause
refraction from the glue used at
joints, or on very cold days when a
cold pipe is placed in a warm
trench.
4 Refraction is a small diameter
pipe problem. When small
diameter pipe is set, it is
recommended to place the hot-sunbaked side of the pipe down in the
trench so that it will cool faster
against the earth. This helps create
temperature stability in the pipe.
5 Generally, refraction of the
laser beam occurs at the last four or
five joints of the pipe. This is
because the last few sun-baked

DG711 and DG511 Pipe Laser User Guide

67

7

Refraction

joints of the pipe have not had a
chance to cool in the shade of, and
against the earth of the trench.
6 If possible, always back-fill the
pipe as you go. The earth is a great
temperature stabilizer as it
surrounds the pipe. The earth tends
to stabilize the temperature of the
pipe and the air inside. Use of a
blower in conjunction with backfilling accelerates temperature
stabilization. Always back-fill
immediately unless the jobsite
condition makes it impossible.
7 To fully minimize the effects of
refraction, it is advisable to use a
blower after the pipe run exceeds
15 m (50 ft). Operate the blower at
a speed that minimizes the effects
of refraction. As the pipe length
increases, increase the speed of the
blower.
8 When using a blower, make
sure it is taking in fresh air through
the intake. On the discharge end,
the nozzle should be angled to
bounce the air off the side of the

68

pipe thereby creating a spiral or
corkscrew effect.

Nozzle

9 If possible, mount the nozzle on
the side of the pipe or in the invert.
Avoid attaching the nozzle at the
top of the pipe unless there is no
other choice, as this will push the
warmer gas through the pipe. If a
strong wind is blowing down the
pipe and fighting the blower, it may
not be needed.
10 In large diameter pipe, 45 cm
(18 inches ) and larger, it is better
to position the blower nozzle off
the invert below the laminar
surface of the gas. If this is
insufficient, three alternatives are
possible. Use two electric blowers,
a Homelite Model III-B (or
equivalent) gas driven blower or a
short blast of air from an air
compressor, to clean out the line.

DG711 and DG511 Pipe Laser User Guide

11 If the beam still can not be
controlled, have your backhoe
excavate five buckets full and then
one or two empty buckets as if it
were bailing water. The blower is
pushing heavy fumes in the pipe
that can not get out of the trench
without someone’s help. Cast the
empty bucket on the low side of the
surface or on the downwind side of
the cut.
12 Another solution is to have a
Homelite III-B blower (or
equivalent) at the cut end of the
trench pulling these fumes from the
cut as the electric blower blows
them out of the pipe. This method
does not tie up production and gets
the job done more efficiently.
13 In summary, if all of the above

fail to solve this problem, use the
laser in an over-the-top setup.

Refraction

7

Model 929 Blower
Operating
Instructions

7.1

1 Use a separate 12-volt
automotive battery to power the
blower.
2 Point the nozzle into the pipe to
create a corkscrew effect. This is
the most effective way to create
temperature stabilization.
3 Ensure the air intake is not
blocked and the 929 is not set in
water. The support handle/cord
wrap bracket is on the opposite
side of the air intake. This handle
can hook over a manhole step to
keep the unit out of water in the
pipe.

DG711 and DG511 Pipe Laser User Guide

69

7

Refraction

4 Start the blower with the first
section of pipe. Use the table on
the blower to determine the blower
speed from the length and size of
pipe being installed. Although very
unlikely, be aware too much air can
also cause refraction.

70

DG711 and DG511 Pipe Laser User Guide

DG511/711
Troubleshooting

CHAPTER
8

8

Table 7.1 will help in troubleshooting your unit. It lists possible problems,
symptoms, and solutions. If the problem goes beyond what is described on
this chart, contact your service center for more information.
Table 8.1
Problem

Troubleshooting
Symptom

Inspect

Solution

Laser does No laser
not come on beam

Dead or low battery

Change to known
good battery

Laser does
not selflevel

Time allowed for laser Allow laser to operate
for about 5 minutes
to self-level
prior to self-leveling.

Beam
flashing*

Out of level range

Roll laser to within its
±3° roll leveling range.

Unstable setup

Provide more stable
setup.

DG711 and DG511 Pipe Laser User Guide

71

8

DG511/711 Troubleshooting

Table 8.1
Problem

Troubleshooting (Continued)
Symptom

Laser does Line does
not respond not move
to remote
left or right
control

Inspect

Solution

Line-lock indicator
(status display).

Unlock line or use the
lasers line buttons.

Out of range. Remote Move the remote
control must be within control within range.
150 m (500 ft) when
standing in front of the
pipe laser and 10 m
(30 ft) from behind.
Blocked signal. If too Remove obstruction
many obstructions are and clean windows.
in the way of the
remote control’s
signal, or the pipe
laser’s collector
windows are dirty, or
the remote control’s
emission window is
dirty, the line will not
operate.

Line moves
in only one
direction

72

Emission indicator
does not blink or
seems dim.

Return the remote
control to an
authorized service
center.

Line movement is at
limit range.

Reset laser within line
movement range.

DG711 and DG511 Pipe Laser User Guide

DG511/711 Troubleshooting

Table 8.1
Problem

8

Troubleshooting (Continued)
Symptom

Inspect

Solution

Grade does Grade will
not respond not change
to grade
control

Grade-lock indicator
(status display).

Unlock grade.

Laser beam Doesn’t
is high or
match
low
existing
pipe

Grade, elevation, or
line is incorrect on
existing pipe.

Use a known accurate
instrument to check
existing pipe.

Unstable setup.

Provide more stable
setup.

Check refraction.

Use a blower or other
method to stabilize air
temperature in pipe.

Calibration.

Calibrate the laser.

DG711 and DG511 Pipe Laser User Guide

73

8

DG511/711 Troubleshooting

Note – Flash rate is about one flash per second.
Error
Code

Meaning

Action

001

Minimum operating
temperature for the
laser has been
exceeded

Do not operate the pipe laser below
–20°C (–4° F).

Maximum operating
temperature for the
laser has been
exceeded

Do not operate the pipe laser above
60° C (140° F).

004

Laser current has
exceeded preset
maximum

Return the pipe laser to an authorized
service center for repair.

016

Grade motor has
jammed.

Check calibration or call authorized
service center.

032

Grade flags failed
initialization.

Return pipe laser to authorized
service center for repair.

064

Fatal Laser

Return the pipe laser to authorized
service center for repair.

128

Internal battery
Corrupt

Return pipe laser to authorized
service canter for repair.

002

74

Call authorized service center.

Call authorized service center.

DG711 and DG511 Pipe Laser User Guide

Calibration

9

CHAPTER

9
Checking the Calibration

9.1

B2
B1
A1
A2

B
A

DG711 and DG511 Pipe Laser User Guide

75

9

Calibration

Checking the calibration of your
pipe laser is easy. All you need is
an engineer’s rule and your pipe
laser:
1 Select a level road, parking lot
or field whose rise is not more than
10 cm in 30 m (4 inches in 100 ft).

Choose two points (A and B)
about 30 m (100 ft) apart. The
distance does not have to be
measured, but the points must be
found, so mark them well.
2

3 Set up the pipe laser just behind
the lowest point and rough level.
4 Turn on the pipe laser and let it
warm up for about 10 minutes.
5 Set the grade counter to
0.000%.
6 Aim the laser beam so that it
passes over points A and B. Allow
the pipe laser to self-level.

7 Accurately measure the
elevation to the center of the beam
at point A and record the elevation
as A1 in a table like the one shown
below:

Point A

Point B

Second Reading

A2

B2

First Reading

A1

B1

A2 - A1

B2 - B1

Difference
Error in 30 m
(100 ft)

(A2 - A1) – (B2 - B1)
2

8 Accurately measure the
elevation to the center of the beam
at point B and record the elevation
as B1.
9 Move the pipe laser behind
point B and aim the laser beam so
that it passes over points A and B.
Allow the pipe laser to self-level.
10 Accurately measure the
elevation to the center of the beam
at point B and record the elevation
as B2.
11 Accurately measure the
elevation to the center of the beam
at point A and record the elevation
as A2.

76

DG711 and DG511 Pipe Laser User Guide

Calibration

12 Subtract the A1 and B1
elevation readings from A2 and B2
elevation readings.

Note – Your laser is in calibration
if the difference between A2 – A1
equals B2 – B1.
Note – If A2 – A1 is greater than
B2 – B1, the laser beam is shooting
high and you should readjust the
laser’s calibration bringing the
beam to level.
Note – If A2 – A1 is less than B2 –
B1, the laser beam is shooting low
and you should readjust the laser’s
calibration bringing the beam to
level.
Note – If the error is greater than
6.4 mm/30 m (0.02 ft in 100 ft),
return the pipe laser to an
authorized Trimble service center.

Adjusting the
Calibration

9.2

The goal to adjusting the pipe
laser’s calibration is to make the
beam level, half the distance of the
total error. This will be the true
calibration point of the unit.

9

1 Enter the Calibration feature
option by simultaneously pressing
the power, decrease, and
backlight/lock buttons (buttons 1,
4, 6).
2 Press the backlighting/lock
button to enter the selection.

Note – To change the displayed
calibration constants when you are
in the Level Cal. mode, use the leftor right-line control button
Note – For every 10 digits
changed, the beam’s elevation
changes 1.6 mm/30 m (1/16 inch
per 100 ft).
Note – The maximum adjustable
range is ±120 digits or ±19 mm/30
m (±3/4 inch per 100 ft ).
3 When the pipe laser is
calibrated, press the backlight/lock
button to set the calibration.
Note – The laser beam will move to
the new calibration point AFTER
the calibration option is exited and
the normal grade display returns.
The laser will NOT move during
calibration. Verify that the
calibration is correct AFTER
exiting the calibration menu.

DG711 and DG511 Pipe Laser User Guide

77

9

Calibration

Grade Check

9.3

A

B

After the first 8–15 m (25–50 ft) of
pipe has been laid, it is
recommended that you make a
grade check to ensure that the setup
is correct, and that the system is
properly operating.

3 The difference between the
readings equals the rise over the
run.

The illustration shows a method for
checking grade.

Note – The user of this equipment
is expected to follow all operating
instructions and make periodic
checks on the proper grade,
elevation, and line of the pipe as it
is being laid. Trimble or its
representatives assumes no
responsibility for improperly laid
pipe.

1 Using a transit level, or an
automatic level and a grade rod,
take a reading at the beginning of
the pipe “A”.
2 Using the same instruments,
obtain a level reading at the end of
the pipe “B”.

78

4 In terms of % of grade, rise
divided by the run times 100 equals
the percent of grade.

DG711 and DG511 Pipe Laser User Guide

Calibration

Example
Table 9.1

9

9.3.1

Grade check chart
Metric

Ft / Tenths

Rod Reading at “A”

4.801 m

15.74 ft

Rod Reading at “B”

3.749 m

12.289 ft

Rise or Difference
(A – B)

1.052 m

3.451 ft

Distance from A to B

44.196 m

145 ft

Rise divided by Run

0.0238

0.0238

Rise divided by Run times
100 = Laser Setting

2.38%

2.38%

Rise according to
engineering plans

(2.38% * 44.196 m) = (2.38% * 145 ft) =
1.052 m
3.451 ft

The pipe is laid correctly when the
rod reading “A” minus rod reading
“B” equals the rise according to the
engineering plans.

DG711 and DG511 Pipe Laser User Guide

79

9

80

Calibration

DG711 and DG511 Pipe Laser User Guide

Maintenance
and Care

You will get years of service from
the leveling system by following
the maintenance and care
recommendations in this manual.
Carry the laser in its moistureresistant, field-tested carrying case
to safely move the laser from one
job to another.
However well the product is
designed, mishaps do occur. The
most common problems associated
with these are covered in the
following areas.

CHAPTER
10

10

Storage

C
C

10.1

Warning – Do not store
the laser in a wet carrying
case. If the case gets wet,
open it and let it dry before
storing the laser.

Warning – Remove the
batteries from the laser
when storing it for more
than 30 days.

DG711 and DG511 Pipe Laser User Guide

81

10

Maintenance and Care

Battery Disposal

10.2

Some countries, states, and local
areas have regulations regarding
the disposal of rechargeable
batteries. Be sure that replaced
batteries are disposed of properly.

System Cleaning

10.3

Use only a good-quality glass
cleaner and a soft cloth to clean all
external optical components. A dry
cloth used on the laser’s/IR remote
control’s optical components or
displays could scratch or damage
these surfaces.
Blow off any loose debris before
cleaning any surfaces to prevent
scratching of optical surfaces.
Monthly, wipe off with a moist,
clean cloth any dust or dirt from
the laser’s outer surface, inside the
battery housing. Clean all corroded
battery contacts with a pencil
eraser or baking soda solution.

82

DG711 and DG511 Pipe Laser User Guide

Laser
Specifications

CHAPTER
11

11

Table 11.1 and Table 11.2 contain the operational specification for the
DG711 and DG511 Pipe Laser.
Table 11.1

Specifications
Performance Specifications
DG511

Grade Range
Self-Leveling Range

DG711
–15% to +40%

Longitudinal: Over the entire grade range
(no rough leveling required) +/- 3 degrees:
Cross Axis

Line Range

20°

Line Center

Yes

Grade Zero

Yes

Line Set/Check

Yes

Line Alert

Yes

Temperature Compensation

+/- 30 arc sec. over entire operating range
on DG711
DG711 and DG511 Pipe Laser User Guide

83

11

Laser Specifications

Table 11.1

Specifications (Continued)

Accuracy, Self-Leveling
(level)

+/- 10 arc seconds = +/- 1.6 mm at 30 m
(1/16 in. at 100 ft )

Maintenance Interval
Notification

Yes

Warranty Period

1 Year

2 Years

Laser Classification
Laser Source – Visible laser
diode
Laser output

Laser Wavelength 635 nm
4.5 – 5 mW (maximum allowable)

Laser classification USA
and Canada

3A

Laser classification
International

3R
General Specifications

Weight

3.6 kg (8.0 lbs.)

Length

37.5 cm (14.75 inches)

Diameter
Housing Material
Battery type and life
Battery pack
Battery Charge Time

14 cm (5 .5 inches)
Hard Anodized
Aluminum

Nickel Plated Die
Casting

Alkaline / 40 hours; Ni-MH / 64 hours
Sealed (Ni-MH), 0-Ring replaceable
Removable (Alkaline)
10 hrs using the smart charger
14 hrs using the cigarette lighter adapter

Operating voltage

84

DG711 and DG511 Pipe Laser User Guide

6–16 Vdc

Laser Specifications

Table 11.1

Specifications (Continued)

Operating temperature

–20° to 60° C (–4° to 140° F)

Storage Temperature

–30° to 60° C (–23° to 140° F)

Waterproof

Table 11.2

11

Continuous Submersion at 3 m (10 ft.)

Remote Control Specifications
Model RC5013-Button

Model RC5027-Button

Wireless Remote Specifications
Through the Pipe Range

225 m (750 ft)

225 m (750 ft)

Front / Over the Top Range

150 m (500 ft)

150 m (500 ft)

Rear Range

10 m (30 ft)

10 m (30 ft)

Battery life (normal
operation)

2 Years / 24 months

3 Years / 36 months

Functions

Line Adjust

Line Grade/Adjust

Laser On/Off

Line Set/Check
Grade Bump
Laser On/Off

Waterproof

3 m (10 ft)

Impact Resistance

1.5 m (5 ft) drop onto concrete

Signal and Battery Indicator Red flashing LED @ 4 Hz
Operating Temperature

–20° to 50° C (–4° to 122° F)

Storage Temperature

–30° to 65° C (–23° to 149° F)

DG711 and DG511 Pipe Laser User Guide

85

11

Laser Specifications

Request for Service
and Parts
11.1

86

DG711 and DG511 Pipe Laser User Guide

Laser Specifications

11

DG711 and DG511 Pipe Laser User Guide

87

Survey Instrument Sales
24037 Acacia
Redford, MI 48239
http://surveyinstrumentsales.com/
313-535-5252 Phone

11

88

Laser Specifications

DG711 and DG511 Pipe Laser User Guide

FO

DG711 and DG511
Pipe Laser
User Guide

Trimble Construction Division
5475 Kellenburger Road
Dayton, Ohio 45424-1099
U.S.A.
+1-937-233-8921 Phone

www.trimble.com

www.trimble.com
© 2002–2007, Trimble Navigation Limited. All rights reserved.
Reorder PN 1281-0100 Rev. C (09/07)



---

Source Exif Data:

File Type                       : AI
File Type Extension             : ai
MIME Type                       : application/vnd.adobe.illustrator
PDF Version                     : 1.6
Linearized                      : No
Author                          : 
Create Date                     : 2007:09:12 11:51:00-04:00
Modify Date                     : 2007:11:16 15:28:42-04:00
Warning                         : Duplicate 'Outlines' entry in dictionary (ignored)
XMP Toolkit                     : 3.1-702
Creator Tool                    : Adobe Illustrator CS2
Format                          : application/pdf
Title                           : DG711and511_CI_12810104_0502_JP.ai
Description                     : 
Creator                         : 
Subject                         : 
Producer                        : Adobe PDF library 7.77
Keywords                        : 
Has XFA                         : No
Page Mode                       : UseNone
Bounding Box                    : -764 -483 490 787
Creator Version                 : 12
Container Version               : 9
Page Count                      : 96

EXIF Metadata provided by EXIF.tools