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3
Track and Trace Solutions
6801 River Place Blvd.
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http://www.3M.com/dynatel
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Troubleshooting
1. If you can’t get a good signal on a cable, what can you try?
a. Are the batteries in the Transmitter and Receiver OK?
b. Are the facilities unbonded/isolated?
c. Be sure that the RED and BLACK Leads are plugged in
completely.
d. Be sure that the RED and BLACK Leads are not broken.
e. Is the ground rod in the dirt far enough?
f. Is the resistance value measured in Ohms mode on the
Transmitter very high? Try moving the ground rod location,
pour some water around it, use a shovel as the ground rod.
g. Verify that the Receiver frequency matches the Transmitter
frequency.
h. Verify that RED Lead is connected directly to the sheath of
the cable.
2. OK, I’ve done that, now what?
a. Put everything in the closure back to it’s original condition or
better.
b. Go to the other end of the facility, unbond and then connect
to the facility.
c. Choose the lowest frequency and check for a signal.
3. Still not a good signal, what next?
a. Keep the Transmitter hooked to the facility.
b. Go to the other end of the facility and isolate it from all other
facilities.
c. Use an “extension lead” and ground the target facility.
d. Go back to the Transmitter and check for continuity (Ohm-
meter mode). If there is continuity, press the Trace key on the
Transmitter and choose the lowest frequency.
e. If there is not continuity, go back to the other end of the
facility and insure the correct cable is isolated/grounded.
4. Still not getting a good signal!!
a. Choose the second lowest frequency available and begin the
process again.
Depth & Relative Current
19. To determine depth, place the Receiver tip on the ground
over the cable path and press the Depth key. Choose
between 1-Shot or Live depth by pressing the first soft
(yellow) key from the left when in the Depth display.
Note: In order to measure the depth and relative current
accurately, the target must be pinpointed and the Receiver
handle should be in-line with the target path.
20. Relative current is displayed when the depth is
measured. The relative current value will be much closer
to the relative current that is alternately flashing with the
frequency value on the Transmitter than adjacent cables
that are detected by the Receiver.