Identifying De-Energized Breakers And Fuses - Beha-Amprobe AT-7000-EUR Mode D'emploi

3. MAIN APPLICATIONS - BREAKERS (DE-ENERGIZED)
3.5 Identifying De-Energized Breakers
and Fuses
De-Energized breaker/fuse locating
BREAKERS
Connecting transmitter test leads
1. Use red and green test leads either with
probe tips or alligator clips.
2. Plug test leads into Transmitter. Polarity
is not important.
3. Connect red and green test leads to Line
and Neutral wires of the same receptacle
or wire (see figure 3.5a).*
* Note: For breaker locating, a simplified
direct connection to Hot and Neutral
wires can be used because these wires are
separated at the breaker panel. There is no risk of signal cancellation effect if wires are
at least a few centimeters (inches) away from each other. However the separate Ground
connection as shown in De-energized TIP SENSOR should be used for superior results
specifically if wires need to be traced in addition to breaker/fuse identification.
Set up the AT-7000-TE Transmitter:
1. Press ON/OFF key to turn on the transmitter.
2. The red LED voltage status indicator should be off, indicating that the circuit is de-
energized. If LED is on, disconnect power to the circuit.
3. Select HIGH signal mode for breaker tracing.
Receiver Process Overview
Tracing breakers is a two-step process:
1
SCAN - Scan each breaker/fuse for half second. The receiver will record tracing signal
levels.
2
LOCATE - Rescan panel by slowly passing the Tip Sensor over each breaker/fuse.
The receiver will indicate the single breaker/fuse with the strongest recorded signal.
Using AT-7000-RE Receiver
1. Press 'ON/OFF' push button to turn on the receiver and wait for
the home screen (boot up time is around 30 seconds).
2. Select De-Energized BREAKERS mode by using the directional
arrows to highlight this operating mode and pressing the
yellow "ENTER" button.
1
3. Step 1 - SCAN
a) The unit will automatically start in 1 <logo> SCAN mode as
shown in Figure 3.5b.
b) Scan each breaker/fuse for a half second by touching it with the Tip Sensor. Make sure
the groove on the Tip Sensor is parallel to the breaker/fuse lengthwise
c) To assure sufficient time between the scans, wait for active green arrow and audible
alert (2-beeps) before moving to the next breaker/fuse.
d) Scan all breaker/fuse – the order of scanning does not matter. You can scan breaker/
fuses multiple times. The receiver is recording the highest detected signal.
Figure 3.5a
20
Figure 3.5b