HVTest PDF1000, Manual

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faulted area will do the next location detection according to dichotomy, in order
to quickly detect the specific fault grounded point. Assume that find ground
fault at A place, and not find at B place, we can determine the fault grounded
point is between A and B. According to feeder cables and equipment
connections, you can respectively detect the entrances of feeder cables, and
find fault branch, then further locate fault point.
The calipers can be used to measure current of bus bar and feeder cables;
its sensitivity is extremely high. Because of its high sensitivity, when testing it is
necessary that let the calipers firmly clamp the feeder cables, until obtain
stable measured data.
4. Signal output lead
Red lead connects to fault bus bar terminal, black lead connects to ground.
Red plug inserts into "L" terminal of signal generator, and the black inserts
into” " terminal.
Fig. 3 Picture for signal output lead
V. Notes
1. The device is a precise instrument, when transport, use and store, it
should be handled with care to prevent violent vibrations or shock.
2. Signal source should be added to fault bus bar and ground.
3. The calipers can only clamp DC circuit, cannot clamp AC circuit.
4. When there is no obvious ground point on each branch circuit, please
check power supply part such as battery, charger and other parts.
5. During test, if not use please turn power off to extend battery life.
Red
Black
Red
Black