Amprobe ECB50A User Manual
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4
Introduction
The ECB50A Circuit Breaker Finder and AC Cable Locator
consists of a transmitter and a receiver. Similar to radio signals,
the transmitter functions by means of a coded carrier sending
a signal into the cable. Using the built-in sensor, the receiver
can indicate the transmitted code as a symbol on the display
as well as providing an audible signal. The audible sound level
automatically intensifies as the source is approached.
The ECB50A is the ideal tracing instrument for sorting out
AC wires in a bundle of cables, tracing lines in overhead
installations and walls, and assigning current circuits to fuses.
Using the ECB50A you can:
•
Sort out a single wire in a bundle of cables.
•
Trace and find AC cable in walls.
•
Assign current circuits to fuses within fuse panels.
•
Switch between locating cable lines or locating fuses.
•
Adjust sensitivity when tracing lines and locating cables.
Finding Circuit Breakers and Fuses See Figure --
.
Turn on the ECB50A receiver using the On/Off switch.
2.
Set the Fuse/Line switch to the Fuse position.
3.
Plug the ECB50A transmitter into the voltage socket
connected to the fuse or circuit breaker.
4.
Turn the On/Off switch toward the top of the receiver to
set sensitivity to the highest sensitivity level. Turn toward
the bottom of the receiver to reduce sensitivity.
5.
Position the receiver at a 90 degree angle (perpendicular)
over the top of the fuse or circuit breaker. Adjust the
sensitivity level until the “H” code is displayed along with
a blinking LED and an audible tone.
6. If a reception signal is received at several fuses/circuit
breakers, use the On/Off switch to reduce the sensitivity
until the minimum reception is received. Repeat this
procedure until only one fuse indicates a reception signal.
This fuse/circuit breaker protects the socket to which
the transmitter has been connected. The tracing depth
amounts to approximately 0 cm (4 in).
�
Caution
Keep hands clear of wiring when tracing wires or fuses in
distribution panels.