User's Manual
Table Of Contents
- 5 Data Collection Mode
- 6 Surveying Techniques
- 6.1 Low Frequency Reflection (Profiling) Mode
- 6.2 High Frequency Reflection (Profiling) Mode
- 6.3 Antenna Orientation
- 6.4 Triggers
- 6.5 Free Run
- 6.6 Odometer Data Acquisition
- 6.7 Signal Polarity
- 6.8 Spatially Aliasing the Data
- 6.9 Creating a Test Line for Data Quality
- 6.10 Adding GPS for Positioning
- 6.11 Common Mid-Point (CMP) Survey
- 6.12 Transillumination Surveys
- 7 Troubleshooting
- 8 File Management
- 9 Care and Maintenance
- 10 Helpful Hints
- Appendix A: Data File Formats
- Appendix B: GPR Signal Processing Artifacts
- Appendix C: Excerpts from the HP Fiber Optic Handbook
- Appendix D: Health & Safety Certification
- Appendix E: FCC Regulations
- Appendix F: Instrument Interference
- Appendix G: Safety Around Explosive Devices
7-Troubleshooting pulseEKKO PRO
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4) With the system running, find the fibre optic cable from the transmitter and disconnect it at the
control module and look for a red light coming from the top hole in the control module. Plug this
cable back in and unplug the Input (black) cable at the transmitter. Check for a red light coming
from the cable.
If the signal is still not found, contact Sensors & Software Inc. (Section 7.10: P103).
7.6 System Overheating
The pulseEKKO PRO system is designed to operate to a maximum internal temperature of 70 C or 158 F.
In situations of high ambient temperatures or long exposure to direct sun, this maximum internal
temperature may be exceeded and cause the system to fail. While the temperature displayed on the DVL
in the lower left corner of the main menu indicates the internal temperature of the DVL and not the GPR
system, this temperature should give an idea of whether the pulseEKKO PRO transmitter and receiver are
overheating.
If you suspect that the system is overheating, shut it off and give it a chance to cool down in a shady
location before trying to run it again.
If the situation is such that the high temperatures or direct sun cannot be avoided, it may be a good idea to
put some sort of shade over the system.
Contact Sensors & Software Inc. if the problem persists as there may be defective electronic components
that need to be replaced (Section 7.10: P103).
7.7 DVL Problem
While the DVL has been ruggedized as much as possible, it should be handled in much the same way a
notebook computer is. If the DVL does not power up and boot up, there may be a problem with the CPU or
the storage media. If this occurs, contact Sensors & Software Inc. (Section 7.10: P103).
If, when trying to run the radar system, you are getting a consistent control module error and none of the
suggestions under Control Module Errors have worked, the problem may be DVL related.
7.8 Timezero Jitter
If the first break is shifting up and down as shown below:
Figure 7-8: Time zero jitter is caused by damaged fibre optic cables.