General Tools and Instruments BF10 - Manual (Page 3)

INTRODUCTION
Thank you for purchasing General Tools & Instruments’
(General’s) BF10 AC Circuit Breaker Finder. Please read this
manual carefully and thoroughly before using the product.
The BF10 can perform two functions:
1. Automatically identify the circuit breaker or fuse
associated with any 110V outlet without tripping the
breaker or blowing the fuse
2. Identify five common receptacle wiring faults
The AC Circuit Breaker Finder has two components—an AC-
powered transmitter and a battery-powered receiver. When
the transmitter is plugged into an AC outlet, it powers on and
sends a signal down the branch circuit all the way to the
circuit breaker panel. If the tip of the battery-powered
receiver is then used to “scan” all of the panel’s breakers (in
other words, touch each one in turn), a sensor in the tip will
light a green LED on the front of the receiver each time it
detects a signal. If no signal is detected, a red LED will light.
A first scan will cause the green LED to light several times if
the transmitter’s signal has leaked onto adjacent branch
circuits. On a rare occasion a second scan may be needed.
During each scan, the BF10 uses a patented circuit that
automatically adjusts the sensitivity of the sensor to rule out
weaker signals representing “false positives.”
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