Cable tests
Page 146 OmniTrax Product Guide
Cable tests
After installing the sensor cables, verify each cable’s integrity by performing the single cable
continuity test, the insulation resistance test, the leakage resistance test, the cable-pair continuity
test and the cable-set continuity test before burying the cables.
Equipment required
• digital multimeter
• jumper wire with clips (to make short-circuit connection)
Cable pair
A cable-pair consists of two separate sensor cables (TXA and TXB or RXA and RXB) connected
by a decoupler.
Note DO NOT use high voltage cable leakage testers (meggers) on
OmniTrax sensor cables, which are connected to processors,
decouplers, or loopback cables.
Figure 129: Cable pair
cable set
cable pair
cable set
decouplers
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