Charles Machine Works The 2450GR 2150GR Duo System User Manual
Charles Machine Works Inc, The 2150GR Duo System
2450GR Op Man 11-23-10.pdf
2450GR
CMW®
Operator’s
Manual
Issue 1.0 053-xxxx
ORIGINAL INSTRUCTION
2450GR Operator’s Manual Overview - 1
CMW
Overview
Chapter Contents
Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . 5
• Bulleted Lists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
• Numbered Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Overview - 2 2450GR Operator’s Manual
Serial Number Location
CMW
Serial Number Location
Record serial numbers and date of purchase in spaces provided. Serial numbers are located as shown.
Date of manufacture
Date of purchase
2450GR serial number
Antenna serial number
Cart serial number
2450GR Operator’s Manual Overview - 3
Overview
CMW
Overview
1. Tablet PC
2. Cart
3. Antenna
4. Battery
5. Wheel position sensor
6. Control unit
7. Battery charger
Item Description Notes
1. Tablet PC Operates the Scan Acquisition Software
and receives data from the control unit.
For specific information about
the Tablet PC, see the
documentation provided by the
PC manufacturer.
2. Cart Carries GPR components over a variety of
terrain. Collapses for easy transport.
Overview - 4 2450GR Operator’s Manual
Overview
CMW
3. Antenna Digital radar transmitter/receiver that uses
two frequencies to detect buried pipes.
High frequency (700MHz) has shallow
penetration. Best in conditions with good
radar conductivity, such as ice, sand,
concrete, or rock.
Low frequency (250 MHz) has broad,
deep penetration. Better in conditions with
poor radar conductivity, such as clay, salt,
or wet soil.
The 2450GR scans and records
both frequencies simultaneously
at all times.
4. Battery Provides 12V DC to control unit. Recharge when battery drops
below 10V, or as indicated by
acquisition software.
5. Wheel position
sensor
Measures the distance traveled by the
cart.
Located in the left rear wheel.
6. Control Unit Receives data from the antenna and the
wheel position sensor and translates it to
the tablet PC.
7. Battery Charger To recharge battery, connect charger to
battery.
Allow about 3 hours for battery
to charge.
Item Description Notes
2450GR Operator’s Manual Overview - 5
Intended Use
CMW
Intended Use
The 2450GR is a ground penetrating radar system that detects metallic and non-metallic pipes and cables
buried underground. Following standard radar principles, the 2450GR uses a high performance
electromagnetic sensor equipped with electromagnetic transmitters and recievers to identify underground
utilities and transmit the location data to a portable computer where specialized software maps the location
site.
The unit is designed for operation in conditions typically experienced in earth moving and construction
work environments. Provisions may be required to operate in extreme temperatures. Use in any other way
is considered contrary to the intended use. The 2450GR should be used with genuine Subsite Electronics
components. It should be operated, serviced, and repaired only by persons familiar with its particular
characteristics and acquainted with the relevant safety procedures.
Any changes or modifications not expressly approved by the manufacturer could void the user’s authority
to operate the equipment.
This equipment is sensitive to the presence of external electromagnetic fields, which may reduce its
performance.
About This Manual
This manual contains information for the proper use of this machine. Cross references such as “See page
50” will direct you to detailed procedures.
Bulleted Lists
Bulleted lists provide helpful or important information or contain procedures that do not have to be
performed in a specific order.
Numbered Lists
Numbered lists contain illustration callouts or list steps that must be performed in order.
Overview - 6 2450GR Operator’s Manual
Compliance
CMW
Compliance
This equipment conforms to the following requirements set by EC regulations, including subsequent
modifications, and to the legislation set by the member states that implement these regulations:
• 1999/5/EC Radio and Telecommunications Terminal Equipment Directive
• 2006/95/EC Low Voltage Equipment Directive
FCC ID: ITQ-2450GR
Industry Canada IC: 3598A-2450GR
This equipment complies with part 15 of the FCC rules. Operation is subject to the condition that this
device does not cause harmful interference. Changes or modifications not expressly approved by The
Charles Machine Works, Inc. could void the user’s authority to operate the equipment.
Users of the 2450GR shall supply operational areas to the FCC Office of Engineering and Technology,
which shall coordinate this information with the Federal Government through the National
Telecommunications and Information Administration. The information provided by the user shall include
the name, address, and other pertinent contact information of the user, the desired geographical area(s) of
operation, the FCC ID number and other nomenclature of the 2450 GR. The geographical area(s) of
operations may be the state(s) or county(ies) in which the equipment will be operated. This material shall
be submitted to the following address:
Frequency Coordination Branch, OET
Federal Communications Commission
Attn: UWB Coordination
445 12th Street, SW
Washington, D.C. 20554
Users of authorized, coordinated 2450 GR systems may transfer them to other qualified users and to
different locations upon coordination of change of ownership or location to the FCC and coordination with
existing authorized operations.
The FCC/NTIA coordination report shall identify those geographical areas within which the operation of a
2450 GR requires additional coordination or within which the operation of a 2450 GR is prohibited. If
additional coordination is required for operation within specific geographical areas, a local coordination
contact will be provided. Except for operation within these designated areas, once the information
requested on the 2450 GR is submitted to the FCC no additional coordination with the FCC is required
provided the reported areas of operation do not change. If the area of operation changes, updated
information shall be submitted to the FCC following the procedure in paragraph (b) of this section.
The coordination of routine UWB operations shall not take longer than 15 days from the receipt of the
coordination request by NTIA. Special temporary operations may be handled with an expedited turn-
around time when circumstances warrant. The operation of the 2450 GR system in emergency situations
involving the safety of life or property may occur without coordination provided a notification procedure,
similar to that contained in CFR 47, Section 1.405(a) through (e) is followed by the equipment user.
WARNING: this equipment is designed for use in industrial environments (Class A
apparatus). This apparatus generate radio interference in residential, commercial and light
industry environments and the user may be required to take appropriate countermeasures
during operation.
2450GR Operator’s Manual Foreword - 7
CMW
Foreword
This manual is an important part of your equipment. It provides safety information and operation
instructions to help you use and maintain your Subsite Electronics equipment.
Read this manual before using your equipment. Keep it with the equipment at all times for future reference.
If you sell your equipment, be sure to give this manual to the new owner.
If you need a replacement copy, contact your Subsite Electronics dealer. If you need assistance in locating
a dealer, visit our website at www.ditchwitch.com or write to the following address:
The Charles Machine Works, Inc.
Attn: Marketing Department
PO Box 66
Perry, OK 73077-0066
USA
The descriptions and specifications in this manual are subject to change without notice. The Charles
Machine Works, Inc. reserves the right to improve equipment. Some product improvements may have
taken place after this manual was published. For the latest information on Subsite Electronics equipment,
see your Subsite Electronics dealer.
Thank you for buying and using Subsite Electronics equipment.
Foreword - 8 2450GR Operator’s Manual
CMW
2450GR
Operator’s Manual
Issue number 1.0/OM-11/19/10
Part number 053-xxxx DRAFT 2
Copyright 2010
by The Charles Machine Works, Inc.
, Ditch Witch, CMW, AutoCrowd, Jet Trac, Roto Witch, Subsite, Fluid Miser,
Power Pipe, Super Witch, Pierce Airrow, The Underground, The Underground Authority Worldwide, and
Zahn are registered trademarks of The Charles Machine Works, Inc. OnGrade is a pending trademark of
The Charles Machine Works, Inc.
2450GR Operator’s Manual Contents - 9
CMW
Contents
Overview
machine serial number, information about the type of work this machine is designed
to perform, basic machine components, and how to use this manual
1
Foreword
part number, revision level, and publication date of this manual, and factory contact
information
7
Safety
machine safety alerts and emergency procedures
11
Controls
machine controls, gauges, and indicators and how to use them
15
Prepare
an overview for completing a job with this machine: planning, setting up, installing
product, and restoring the jobsite; with cross references to detailed procedures
29
Operate
instructions for launching acquisition software, calibrating the system, acquiring
scan data, marking objects, and recording target information
35
Service
how to clean the unit and replace/recharge the battery as well as details of computer
system requirements and software installation instructions
41
Specifications
dimensional measurements of unit as well as system specifications including
antenna performance and scanning speeds
45
Support
the warranty policy for this machine, and procedures for obtaining warranty
consideration and training
49
Contents - 10 2450GR Operator’s Manual
CMW
Safety - 12 2450GR Operator’s Manual
Guidelines
CMW
Guidelines
Follow these guidelines before operating any jobsite equipment:
• Complete proper training and read operator’s manual before using equipment.
• Contact One-Call (811 in USA) or the One-Call referral number (888-258-0808 in USA and Canada) to
have underground utilities located before working. Also contact any utilities that do not participate in
the One-Call service. Classify jobsite based on its hazards and use correct tools and machinery, safety
equipment, and work methods for jobsite.
• Mark jobsite clearly and keep spectators away.
• Wear personal protective equipment.
• Review jobsite hazards, safety and emergency procedures, and individual responsibilities with all
personnel before work begins. Safety videos are available from your Subsite Electronics dealer.
• Replace missing or damaged safety signs.
• Use equipment carefully. Stop operation and investigate anything that does not look or feel right.
• Contact your equipment dealer if you have any question about operation, maintenance, or equipment
use.
2450GR Operator’s Manual Safety - 13
Safety Alert Classifications
CMW
Safety Alert Classifications
These classifications and the icons defined on the following pages work together to alert you to situations
which could be harmful to you, jobsite bystanders or your equipment. When you see these words and
icons in the book or on the machine, carefully read and follow all instructions. YOUR SAFETY IS AT
STAKE.
Watch for the three safety alert levels: DANGER, WARNING and CAUTION. Learn what each level
means.
indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury.
Watch for two other words: NOTICE and IMPORTANT.
NOTICE can keep you from doing something that might damage the machine or someone's property. It
can also alert you against unsafe practices.
IMPORTANT can help you do a better job or make your job easier in some way.
Safety - 14 2450GR Operator’s Manual
Safety Alerts
CMW
Safety Alerts
Electric shock. Contacting electric lines will cause death or serious injury.
Know location of lines and stay away.
Jobsite hazards could cause death or serious injury. Use
correct equipment and work methods. Use and maintain proper safety
equipment.
Explosion possible. Serious injury or equipment damage could occur.
Follow directions carefully.
Incorrect procedures could result in death, injury, or property damage. Learn
to use equipment correctly.
Moving traffic - hazardous situation. Death or serious injury could result.
Avoid moving vehicles, wear high visibility clothing, post appropriate warning signs.
2450GR Operator’s Manual Controls - 15
CMW
Controls
Chapter Contents
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
• Radar Setup Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
• Acquisition Selection Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
• New Acquisition Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
• Acquisition Editing Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
• Marker Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Controls - 16 2450GR Operator’s Manual
Antenna
CMW
Antenna
1. Antenna lift/lower strap
2. Control unit port
3. Cart mounting pins
4. Antenna centerpoint marker
Item Description Notes
1. Antenna lift/lower strap Connects to a knob on the top of the
cart to lift the antenna off the ground.
During operation, disconnect strap
from knob so antenna contacts
ground.
1. Control unit port Connects to the control unit antenna
port (ANT 1).
2. Cart mounting straps To connect antenna to cart, align
cart with antenna mounts and
secure with straps.
3. Antenna centerpoint
marker
Denotes the centerpoint of the
antenna.
2450GR Operator’s Manual Controls - 17
Control Unit
CMW
Control Unit
1. Power supply port (BATTERY)
2. Network port (LAN)
3. Antenna port (ANT 1)
4. Wheel position sensor port (WHEEL)
5. Power button.
Item Description Notes
1. Power supply port
(BATTERY)
Connects the control unit to the
battery.
Blue indicator lights when
system is powered by the
battery.
2. Network port (LAN) Connects the control unit to the
notebook PC.
3. Antenna port (ANT 1) Connects the control unit to the
antenna.
4. Position sensor port
(WHEEL)
Connects the control unit to the cart
wheel position sensor
5. Power button To start system, press.
To stop system, press again.
Blue indicator lights when
system is on.
Controls - 18 2450GR Operator’s Manual
Software
CMW
Software
Acquisition Setup Window
1. Scan display area
2. Advanced settings toggle bar
3. System status indicators
4. CONFIGURATION button
5. Frequency setting buttons
6. END PROGRAM button
7. SKIP CALIBRATION button
8. END CALIBRATION button
9. START CALIBRATION button
Item Description Notes
1. Scan display area Displays radar information from the
antenna.
Measurement scale on the
left indicates depth below the
surface.
2450GR Operator’s Manual Controls - 19
Software
CMW
2. Advanced settings
toggle bar
To open the advanced settings
window, press the gray bar twice. In
this window you can customize the
way information is displayed.
Wheel Setting
•Wheel driven (default): radar acquisition is set using the
position sensor.
•Auto stacking: Radar acquisition is set using a number you
enter.
Ground Type
•Rough terrain: Select this setting when ground conditions
cause excessive vibration. In this mode, radar data is
temporarily saved on an external device during the acquisition
phase.
•Device: Select the computer port the external device is
connected to.
Measure Unit: Select standard or metric measurement units.
Swap Axis: Select m or nsec to modify the vertical scale of the radar
map.
Background Removal: Select this option to viewed radar maps with or
without the Clear_x application.
Gain Application: Select this option to view the real time radar map
with or without gain applied.
Language: Select to view the software interface in Italian or English.
3. System status
indicators
Indicators for radar, battery,
acquisition speed, and acquired
sweeps light when active.
4. CONFIGURATION
button
5. Frequency setting
buttons
Select shallow (high frequency,
700MHz)
Select deep (low frequency, 250 MHz)
The 2450GR transmits,
receives, and records both
frequencies at all times. Use
this button to view low, high,
or both frequencies while
scanning.
6. END PROGRAM To exit Acquisition Software, press.
Item Description Notes
Controls - 20 2450GR Operator’s Manual
Software
CMW
7. SKIP CALIBRATION To bypass calibration, press. If you skip calibration, you will
only be able to view pre-
existing radar maps.
8. END CALIBRATION To stop calibrating parameters, press.
9. START CALIBRATION To start calibrating parameters, press. Calibrate the 2450GR any
time ground conditions
change: ie, from asphalt to
concrete, or from concrete to
grass.
10. Palette selection button To select color and resolution for
viewing radar maps, press, then select
the desired palette.
11. Zoom button To make the radar map larger, press.
Item Description Notes
2450GR Operator’s Manual Controls - 21
Software
CMW
Acquisition Selection Window
1. File display window
2. REVIEW ACQUISITION button
3. RENAME ACQUISITION button
4. DELETE ACQUISITION button
5. NEW ACQUISITION button
6. RESUME LAST ACQUISITION button
7. BACK TO SETUP button
8. EXIT PROGRAM button
Item Description Notes
1. File display window Displays a list of acquisitions saved at
C:\2450GR\mission\directory.
2. REVIEW ACQUISITION
button
To review a saved acquisition, select
file in display window, then press.
3. RENAME ACQUISITION
button
To rename a saved acquisition, select
file in display window, then press.
Enter new name in text box.
4. DELETE ACQUISITION
button
To delete a saved acquisition, select
file in display window, then press.
Controls - 22 2450GR Operator’s Manual
Software
CMW
5. NEW ACQUISITION
button
To save a new acquisition, enter a
name in the text box and press.
The New Acquisition Window will
open.
Files are saved at
c:\2450GR\mission\directory
6. RESUME LAST
ACQUISITION button
To continue scanning and save the
data to the last acquisition, select file
in display window, then press.
7. BACK TO SETUP
button
Press to open the Acquisition Setup
Window and recalibrate the 2450GR.
Calibrate the 2450GR any
time ground conditions
change: ie, from asphalt to
concrete, or from concrete to
grass.
8. EXIT PROGRAM button To close the software, press.
Item Description Notes
2450GR Operator’s Manual Controls - 23
Software
CMW
New Acquisition Window
1. Scan display window
2. Contrast setting
3. Edit Parameters
4. Notes
5. END ACQUISITION button
6. SAVE SCAN button
7. STOP SCAN button
8. START SCAN button
Item Description Notes
1. Scan Display Window Displays real time ground penetrating
radar image. Also displays survey
name, scan number, and distance
traveled.
2. Contrast setting
window
To increase or decrease radar map
contrast, press, then select the
desired setting.
3. Edit Parameters
window
Press to open the Edit Parameters
window.
4. Notes window To enter notes, press, then type into
the text box.
Controls - 24 2450GR Operator’s Manual
Software
CMW
5. END ACQUISITION
button
To end the current acquisition, press.
6. SAVE SCAN button To save scan, press.
7. STOP SCAN button To stop scanning, press.
8. START SCAN button To begin displaying scanned radar
image, press.
The Acquisition Editing Window will
open.
Item Description Notes
2450GR Operator’s Manual Controls - 25
Software
CMW
Acquisition Editing Window
1. Radar map display
2. UP / DOWN buttons
3. MARK / UNMARK buttons
4. Distance display
5. END EDITING button
6. PRINT button
7. - / File Name / + buttons
8. Directional arrow buttons
Item Description Notes
1. Radar map display Displays real time ground penetrating
radar image. Also displays survey
name, scan number, depth, and
distance traveled.
2. UP / DOWN buttons To move the cursor up, press UP.
To move the cursor down, press
DOWN.
Controls - 26 2450GR Operator’s Manual
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3. MARK / UNMARK
buttons
To mark an image on the radar map,
position cursor and press MARK. The
Mark Window will open.
To remove a previously placed mark,
position cursor and press UNMARK.
4. Distance display Displays distance traveled from
starting point.
Displays object depth of detected
object.
5. END EDITING button To close the Acquisition Editing
window, press.
6. PRINT button To print radar map with information,
press.
7. - / File Name / + To select and load previous scans in a
survey, press -.
To go to a particular scan, press the
arrow and select.
To select and load subsequent scans
in a survey, press +.
8. Directional arrow
buttons
To move the review line about 20”
(50 cm) to the left, press <<.
To move the review line about 1”
(2.5 cm) to the left, press <.
To move the review line about 1”
(2.5 cm) to the right, press >
To move the review line about 20”
(50 cm) to the right, press >>.
On touch sensitive tablet
PCs, you may reposition the
review line by tapping the
screen.
Item Description Notes
2450GR Operator’s Manual Controls - 27
Software
CMW
Mark Window
1. Gas pipe button
2. Traffic control cable button
3. Electrical cable button
4. Street light cable button
5. Phone cable button
6. Sewer pipe button
7. Water pipe button
8. Unknown object marker
9. CANCEL button
10. FITTING button
11. GROUND TRUTH SKETCH button
NOTICE: The 2450GR can not identify types of pipe or cable. Find this information from other sources,
such as opening manholes or consulting technical maps.
Item Description Notes
1. Gas pipe button To mark a radar image as a gas pipe,
press.
2. Traffic cable button To mark a radar image as a traffic
cable, press.
3. Electrical cable button To mark a radar image as an electrical
cable, press.
4. Street light cable button To mark a radar image as a street
light, press.
Controls - 28 2450GR Operator’s Manual
Software
CMW
5. Phone cable button To mark a radar image as a phone
cable, press.
6. Sewer pipe button To mark a radar image as a sewer
pipe, press.
7. Water pipe button To mark a radar image as a water
pipe, press.
8. Unknown object button To mark a radar image as an unknown
object, press.
9. CANCEL button To exit the Mark Window without
selecting a marker, press.
10. FITTING button Press to open a window to enter
formulated depth of a pipe or cable.
Use the UP and DOWN button to
adjust the white-line curve to the
shape of the hyperbola.
11. GROUND TRUTH
SKETCH button
Press to open a window to enter exact
depth of a pipe or cable.
Use when information is
available from another
source, such as technical
maps or actual measurement.
Item Description Notes
2450GR Operator’s Manual Prepare - 29
CMW
Prepare
Chapter Contents
Survey the Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
• Inspect Visually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
• Acquire Utility Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Check Battery Status . . . . . . . . . . . . . . . . . . . . . . . 33
• Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
• Tablet PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Prepare - 30 2450GR Operator’s Manual
Survey the Site
CMW
Survey the Site
Consider the following when preparing to work at a survey site:
• Gain permission to access pedestrian zones, interrupt traffic flow, etc.
• Determine site accessibility.
• Determine space available for cart.
• Observe traffic levels.
• Observe presence of parked cars.
• Observe presence of architectural obstacles.
Inspect Visually
Make a visual check of the site for signs of buried cables such as:
• recent trenching
• buried cable markers
• overhead lines that run down the pole and underground
• gas meters
• valve sights
• drains or manhole covers
Acquire Utility Maps
Various companies produce technical maps of existing utilities. While some maps may be very generic,
they are an important tool for gathering and interpreting data at the survey site. The maps provide general
schematics of the type and position of the utilities managed or constructed by those companies.
Request maps by contacting the utility’s cartographic or planning office. Specify the street names and
areas of interest. Request maps well in advance of the actual survey. Types of utilities to consider are:
• public street lighting
• low, medium and high voltage electric cables
• water supply
• gas
• telephone cables
• sewers
2450GR Operator’s Manual Prepare - 31
Setup
CMW
Setup
1. To open cart, remove pin (1), rotate handle
(2) to upright position, and insert pin into slot.
2. To adjust height, pull knob (1) and raise or
lower the handle (2) to desired height.
Release knob to engage pin.
Prepare - 32 2450GR Operator’s Manual
Setup
CMW
3. To attach computer to cart, align velcro strips
on bottom of computer with velcro strips on
cart.
4. Connect network cable from control unit to
computer.
5. To lower antenna into scan position, pull
rubber keeper (1) until it is free from pin (2).
2450GR Operator’s Manual Prepare - 33
Check Battery Status
CMW
Check Battery Status
Control Unit
Check battery status before each use, after each battery change, and as desired during operation. In
normal conditions, battery lasts about 12 hours.
To check
1. Connect control unit to battery.
2. Check battery status:
Control Unit If battery has greater than 10V, indicator on control unit will light.
Software Check battery status indicator.
• If indicator is green, battery is fully charged.
• If indicator is yellow, battery is semi-charged.
• If indicator is red, battery needs recharged.
• If indicator is not lit, check the cable for a good connection or recharge the battery.
To recharge battery
If the battery runs down,
1. Shutdown unit.
2. Connect another battery.
3. Restart the system.
Connect the discharged battery to the battery charger. It takes about 3 hours to recharge the battery.
Tablet PC
Check battery status before each use and after each battery change. See PC manufacturer’s instructions
for more information.
Prepare - 34 2450GR Operator’s Manual
Check Battery Status
CMW
2450GR Operator’s Manual Operation - 35
CMW
Operation
Chapter Contents
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
• Launch Acquisition Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
• Calibrate System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
• Acquire Scan Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
• Mark Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
• Record Target Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Troubleshoot Error Messages . . . . . . . . . . . . . . . . 40
Operation - 36 2450GR Operator’s Manual
Setup
CMW
Setup
Position 2450GR at jobsite and release rubber keeper to lower antenna to ground.
Launch Acquisition Software
The 2450GR software allows scan data to be acquired, saved, and viewed directly in the field.
1. Set the control unit power switch to ON.
2. Turn on the tablet PC. (See manufacturer’s instructions for more information.)
3. Click the 2450GR icon to launch the software.
4. Monitor progress of software self-tests. If one or more self tests fail:
• Check that the control unit power switch is set to the ON position.
• Verify that the 2450GR battery is fully charged.
• Verify that the tablet PC battery is fully charged. (See manufacturer’s instructions for more
information.)
• Check all cable connections.
Calibrate System
IMPORTANT: For an accurate survey, calibrate the system at the start of a scan and any time ground
conditions change, for example, when moving from grass to concrete, or from concrete to asphalt.
To calibrate, open the Radar Setup Window is open:
1. Press START CALIBRATION.
2. Push the cart a short distance, 10-15 ft (3-5
m). The unit will calibrate and automatically
save the processing parameters and open
the Acquisition Selection Window.
3. Enter a job name in the text window and
press NEW ACQUISITION.
To skip calibration, press SKIP CALIBRATION.
Note: If you skip calibration, you will only be able to view pre-existing acquisition maps.
IMPORTANT: Once a new survey is
named a data file is created and
saved in the C:\2450GR\mission
directory. All files containing acquired
data will be stored in this directory.
2450GR Operator’s Manual Operation - 37
Scan
CMW
Scan
Acquire Scan Data
Ensure that the New Acquisition Window is
open.
1. Press START SCAN and push or pull the
cart to acquire survey data.
2. A radar map will appear on the computer
display. Select Shallow, Deep, or Dual to
set frequency viewing preference.
3. Watch radar map for signs of buried
objects, which appear as hyperbolas on the
radar map.
Note: The 2450GR can be either pulled
or pushed to acquire survey data;
however, the entire acquisition must be
conducted in the same direction. Follow
a grid pattern to scan the survey area.
Note: The manufacturer recommends
viewing dual frequencies to best detect
buried objects.
Operation - 38 2450GR Operator’s Manual
Scan
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Mark Objects
1. When a hyperbola (1) is appears , move the cart in the opposite direction. A vertical white line (2) will
display on the radar map. Move the cart until the white line is in the center of the hyperbola.
2. Mark the ground: Use spray paint to mark the
location on the ground (shown). A red arrow
on the side of the antenna corresponds to the
white line on the radar map.
3. Mark the acquisition map:
• Using the Up/Down buttons (4), position
the red horizontal cursor (3) at the top of
the hyperbola.
• Press the MARK button (5) to open the
Mark Window. (See next page.)
2450GR Operator’s Manual Operation - 39
Scan
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Record Target Information
Record target information during a survey, or at a later time. See “Acquisition Editing Window” on page 25.
1. Press the FITTING button (2), then Use the UP and DOWN buttons (3) to adjust the curve to match the
hyperbolas. This sets the correct propagation speed to accurately calculate object depth.
2. Select an icon to label the type of pipe you suspect.
3. Press GROUND TRUTH SKETCH (1) to note exact depth of cable or pipe, if known. This information
is obtained from outside sources such as technical maps, by opening manhole covers, or by potholing.
4. To continue scanning, move 2450GR in original direction.
IMPORTANT: The GPR system does not identify what type of pipe or cable is buried. This
information can be determined from opening manholes or consulting technical maps.
Operation - 40 2450GR Operator’s Manual
Scan
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Troubleshoot Error Messages
Message Description/Solution
Network error. Retry or check hardware! Check that the network cable is connected
properly to the PC and the control unit. Restart
the program.
New depth must be >0. Please insert new value
to continue.
New depth must be >0. Unable to set the depth.
New depth missing. Please insert value to
continue.
Select a new value for the depth of the identified
pipe.
Warning. Unable to print on the selected printer Check that the printer is switched on and
connected to the computer.
Unable to review: calibration file has been lost. The calibration files for the selected survey have
been deleted. To be able to see the data, the
Igr.bkg and Igr.stc files have to be copies from
the main program directory (C:\2150GR) into the
survey directory.
Unable to review: mark file has been lost. A system file has been deleted, making it
impossible to review the selected acquisition.
Unable to mark: marker already present at this
distance!
You have tried to mark an object in a point that
already contains one. Select a new point.
Gain calibration has been skipped (or lost).
Calibrate gain to proceed
Unavailable: gain calibration has been skipped
(or lost).
Unavailable: gain calibration has changed.
Perform calibration to acquire data.
Unavailable: directory has been lost. The last acquisition cannot be recovered. Select
a new acquisition.
2450GR Operator’s Manual Service - 41
CMW
Service
Chapter Contents
As Needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
• Clean 2450GR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
• Replace detector battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Load Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
• System Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
• Install Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
• Set IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Service - 42 2450GR Operator’s Manual
As Needed
CMW
As Needed
Clean 2450GR
Use a damp cloth to clean the 2450GR.
Charge Battery
Charge battery when software indicator shows that
power is low.
IMPORTANT:
• Before cleaning any external parts of the 2150GR, make sure all cables have been
disconnected, including the power supply cable.
• Make sure that cloth is not too wet to avoid any damage to the electrical components of the
equipment.
• Do not use solvents or abrasive detergents.
• Do not apply liquid directly to the electrical contacts of the various connectors.
2450GR Operator’s Manual Service - 43
As Needed
CMW
Load Software
System Requirements
Subsite Electronics recommends the Xplore tablet PC for optimum data processing with the 2450GR
Ground Penetrating Radar unit. If you decide to use a different PC it must have the following:
• Pentium processor > 1/5 GHz or Centrino > 900 Hz
• Ethernet 100 Mbps card
• Monitor resolution (color) > 800 x 600
• Windows 2000 Professional (Service Pack 4) or XP Professional operating system
• HDD > 6 G, shock-proof mounted on a gel support or equivalent
• No firewall software protecting data exchanged on the Internet
• CD drive and/or floppy
• Weather resistant (>=IP54)
Install Software
The tablet PC shipped with the 2450GR is already configured with acquisition software. If it is necessary to
reinstall the software, follow the steps below:
1. Insert USB flash drive into computer USB port.
2. Open USB port directory to view files stored on flash drive.
3. Locate and open the file 2450GRDuo.msi.
4. Follow the on-screen cues and select a TYPICAL installation.
5. When installation is complete, follow the on-screen cues and click the FINISH button.
Set IP Address
1. Navigate to the computer’s network connection setting window.
2. Disable any wireless connections already connected.
3. Navigate to the Ethernet connection properties window and enter the following information for the
Internet Protocol (TCP/IP) setting:
IP address: 192.168.200.150
Subnet mask: 255.255.255.0
4. Follow the cues to save new settings and to exit the settings window.
5. Restart the computer.
Service - 44 2450GR Operator’s Manual
As Needed
CMW
2450GR Operator’s Manual Specifications - 45
2450GR
CMW
Specifications
2450GR
Specifications are general and subject to change without notice. If exact measurements are required,
equipment should be weighed and measured.
Dimensions U.S. Metric
L, overall length, handle extended fully 40.0 in 1016 mm
Length, handle collapsed, travel position 40.0 in 1016 mm
L2, wheel base
H1, height from ground to handle extended fully 40.0 1016 mm
H2, height handle folded 20.5 521 mm
W, width 21 in 533 mm
Weight, without PC 68.6 lb 31.1 kg
Battery
Type: 12V sealed lead acid, 12AH
Life: >10 hours
Specifications - 46 2450GR Operator’s Manual
2450GR
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Antenna Performance U.S. Metric
Antenna technology: ultra-wide band, ground coupled, shielded dipole.
250 MHz:
typical range 0.6-8.2 ft 0.2-2.5 m
maximum range 0.6-19.7 ft 0.2-6.0 m
700 MHz:
typical range 0.32-4.9 ft 0.1-1.5 m
maximum range 0.32-19.7 ft 0.1-8.2 m
Dual Frequency
typical range 0.32-8.2 ft 0.1-2.5 m
maximum range 0.32-19.7 ft 0.1-6.0 m
System U.S. Metric
Survey path width 19.7 in 500 mm
Recording channels 2 2
Transmitting frequency 200 kHz 200 kHz
Typical antenna frequency 250 and 700 MHz
Typical collection speed (scans/second) 100
Typical collection speed at 2-in (5 cm) sampling interval 5.6 mph 9km/h
Data storage laptop w/
harddrive
Maximum profile length virtually unlimited
2450GR Operator’s Manual Specifications - 47
2450GR
CMW
Software
Display mode grayscale/color
Zoom up to 4x
Stored data format raw data (for further data analysis)
Setting of GPR propagation velocity (to get accurate
evaluation of depth of detected targets)
ground truth or hyperbola fitting
methods
Reading of pipe position/depth software cursor
System output printable annotated radar map
Diagnostic radar and power supply status,
excessive speed, data loss
Languages English, French, German, Spanish,
Italian, Portuguese, Chinese
Data collection type Parallel profile lines, perpendicular to
the expected orientation of utilities
Reading of pipe position/depth software cursor
Specifications - 48 2450GR Operator’s Manual
2450GR
CMW
2450GR Operator’s Manual Support - 49
Procedure
CMW
Support
Procedure
Notify your dealer immediately of any malfunction or failure of Ditch Witch Subsite Electronics equipment.
Always give model, serial number, and approximate date of your equipment purchase. This information
should be recorded and placed on file by the owner at the time of purchase.
Return damaged unit to dealer for inspection and warranty consideration if in warranty time frame.
All repairs must be done by an authorized Ditch Witch Subsite Electronics repair facility. Repairs done
elsewhere will void warranty consideration.
Resources
Publications
Contact your Ditch Witch Subsite Electronics dealer for publications and videos covering safety, operation,
service, and repair of your equipment.
Training
For information about on-site, individualized training, contact your Ditch Witch Subsite Electronics dealer.
Warranty - 50 2450GR Operator’s Manual
Ditch Witch ElectronicsSubsite Electronics Limited Product Warranty Policy
CMW
Warranty
Ditch Witch ElectronicsSubsite Electronics
Limited Product Warranty Policy
Warranty Periods
New Product
A twelve-month period starts on the date of delivery to the end user:
All Trackers, Remote Displays, Transmitters, Receivers, Radars, and Fault Finders
A six-month period starts on the date of delivery to the end user:
All Directional Beacons and Locate Beacons
A three-month period starts on the date of delivery to the end user:
All Accessories: cables, clamps, canoes, bags, and adapters
Used Product (Cosmetics)
A three-month warranty starts on the date of delivery to the end user on used and refurbished products
sold from Ditch Witch ElectronicsSubsite Electronics dealers. Used products are non-returnable.
Service and Repair
A one-month warranty on labor starts on the date the unit is repaired, and a three-month warranty on parts
starts on the date the unit is repaired for all products.
Extended Warranty
The extended warranty may be purchased at the time the equipment is sold or anytime within the original
warranty period. The extension is for an additional twelve or twenty-four months, depending on extended
warranty purchased, for a total coverage of twenty-four to thirty-six months. Exclusions: All Beacons and
accessories.
2450GR Operator’s Manual Warranty - 51
Ditch Witch ElectronicsSubsite Electronics Limited Product Warranty Policy
CMW
Details and Exclusions
• The warranty includes only Ditch Witch Electronics Subsite Electronics products and accessories that
are manufactured and distributed by dealers of Ditch Witch Electronics.Subsite Electronics. The
warranty compensates on defects in material or workmanship.
• Defects will be determined through inspection by a Ditch Witch Electronics Subsite Electronics
authorized repair centers. Original purchaser must make the defective item available for inspection
within 30 days of the date the part fails.
• The warranty is limited to replacement of the defective part. The replacement part may be new or
remanufactured. Repair or installation of defective part will be at no charge when product or item is
delivered to a Ditch Witch Electronics Subsite Electronics authorized repair center. The product or item
will be returned at no charge for return freight.
• The warranty periods do not represent the useful life of Ditch Witch Electronics Subsite Electronics
products and accessories.
• If Ditch Witch Electronics Subsite Electronics products are purchased for commercial purposes, as
defined by the commerical code, no warranties extend beyond the specific terms set forth in this
limited warranty. All other provisions of this limited warranty apply, including the duties imposed.
•Ditch Witch Electronics Subsite Electronics products have been tested to deliver acceptable
performance in most conditions.
• This limited warranty applies to the original purchaser only. Some states or jurisdictions do not allow
exclusion or limitation of incidental or consequential damages, so above limitations may not apply. This
limited warranty gives original purchaser specific rights that vary from state to state or jurisdiction to
jurisdiction.
• Each serial-numbered piece of equipment must be registered by the selling dealer to determine the
warranty start date.
• When registration is not received, the shipping date from the manufacturer is used to establish the
warranty period start date.
• Product inspection and estimates may require that the unit be disassembled and tested.
• Out-of-warranty inspection costs include labor accrued at the full labor rate plus return freight.
• Approved out-of-warranty repair costs include parts, labor accrued at full labor rate, plus return freight.
Revision G, December 2007
Warranty - 52 2450GR Operator’s Manual
Ditch Witch ElectronicsSubsite Electronics Limited Product Warranty Policy
CMW