Identifying Breakers And Fuses - Beha-Amprobe AT-7020-EUR Manual De Usuario

3. MAIN APPLICATIONS - BREAKERS (ENERGIZED)

3.4 Identifying Breakers and Fuses

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 3.4a).
Note: For breaker locating, a simplified
direct connection to Line 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 Neutral
connection as shown in Energized TIP SENSOR mode 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. Verify that the test leads are properly connected - the red LED voltage status indicator
should be on, indicating that the circuit is energized.
3. Select HIGH signal mode for breaker/fuse 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.
ATTENTION: The transmitter voltage indication by LED or measurement on the LCD is
not sufficient to assure safety. Always verify the voltage presence/absence with approved
voltage tester.
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 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
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 (See Figure 3.4d)
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.
1
SCAN mode as shown in Figure 3.4b.
18
Figure 3.4a