Amprobe AT-4000 Series Advanced-Wire-Tracer - Manual (Page 12)

11
Select the signal transmission level (LOW, MID, HIGH) by pressing 6.
on the signal level push button. It takes about 2 seconds for the
transmission to start after you last hit the push button. (Note:
When using the battery booster (B2024 or B2025) the unit will
work in ultra high “U-HI” mode only. Remove the battery booster
to return to normal operation.)
Trace the wire with the R-4000CON receiver. The signal will stop at
7.
the break in the wire.
IMPORTANT: When using the T-4000 in energized circuits with GFCI
protection, always use the Low level transmission.
The signal generated by the T-4000 is present at all points around
the circuit. The T-4000 connected to a 110V outlet via the C2901 cord
set will cause an incoming signal on the neutral wire as well as an
outgoing signal on the hot wire. The close proximity of these two wires
may cause the signals to cancel each other, making it difficult to trace
the cable in these areas. In this case, keep the R-4000CON in the high
sensitivity range. (Refer to Figure 11)
At the panel breakers, the hot wire is separated from the neutral wire
(where it is grounded) allowing easy circuit breaker identification. In
that case, use the Low sensitivity range of the R-4000CON. So, if tracing
the branch wiring through the walls is not necessary, use the C2901 for
quicker connection. (Refer to Figure 12)
Easy tracing of wires and buried cable is accomplished by simply
separating wire from the return path (ground). Instead of using the
neutral wire or the conduit as the ground, use the C2902 Alligator Clip
cord set and attach the grounding test lead to a separate ground such
as a water pipe. (Refer to Figure 13)
Using the A2202 Clamp-on Transmitter Accessory
The A2202 will allow non-contact signal indication onto energized
or non-energized conductors. On energized lines, the signal will
propagate downstream to the end of the circuit, provided there is a
current flowing in the circuit. Unenergized lines must be grounded at
both ends or made into a complete circuit. The signal strength can be