Clamp (Coupler) - Vivax vLoc-9800 User Handbook Manual

8 Using the vLoc-9800
Connect the red connection lead to the target line after removing any surface corrosion.
Plug the connection leads into the transmitter switch on and select the desired frequency.
WARNING
BE CAREFUL not to hit other buried lines when inserting the ground stake into
the ground. Check using passive location prior to inserting ground stake. Stop
if additional resistance is felt during insertion.
8.3.2

Clamp (Coupler)

This is used when applying the transmitter signal to cables carrying hazardous voltages, or cables where
access to the metallic conductor is not possible, or desirable. The "Clamp" mode is selected automatically
when the clamp is plugged into the transmitter.
For a clamp to work the current induced by the clamp must flow along the buried line. This means the buried
line must have a ground connection at both ends.
Do NOT plug the clamp into the transmitter before applying it to the target line. Open the jaws of the clamp,
place around the target line, close the jaws. Be sure that the jaws of the clamp are completely closed. After
applying the clamp, plug it into the transmitter, switch on and select the required frequency. Clamps are
generally turned to specific frequencies. Your transmitter only allows frequencies that are compatible with the
clamp to be selected.
Please note – at the end of the clamp, and in the area close to the clamps hinge the exposed end of the
clamp laminations can be seen. Any dirt or corrosion on these ends will reduce the efficiency of the clamp.
WARNING
ALWAYS follow the appropriate safety requirements mandated by safety
legislation, safety practice or your company's safety procedures when applying
a clamp (coupler) to a cable.
BEWARE that when placing a clamp around cables carrying high current, the
clamp may vibrate, jump or close violently due to inducted current from the
target cable.
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