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BK120
Users Guide
Introduction
The BK120 is a system to locate breakers in an electrical installation and
to detect voltage. The system comprises the Transmitter and the Breaker
Finder (the Product).
Contact Fluke
Fluke Corporation operates worldwide. For local contact information, go to
our website: www.uke.com.
To register your product, view, print, or download the latest manual or manual
supplement, go to our website. For service information, contact your nearest
Fluke dealer.
Product Use
Transmitter
1. For best results, unplug all appliances and equipment on the circuit
under test.
2. Plug the Transmitter into the socket and note which indicators light.
3. To determine the wiring, see the diagram on the Product shown for
reference in Figure 1.
Figure 1. Transmitter
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CORRECT
OPEN GROUND
OPEN NEUTRAL
OPEN HOT
HOT / NEUT. REV.
HOT / GRD. REV.
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Red LED illuminates when you push the GFCI test button
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Receptacle wiring check
lndicator Wiring Scenario Description
CORRECT Receptacle is wired correctly
OPEN GROUND Ground contact is not wired
OPEN NEUTRAL Neutral contact is not wired
OPEN HOT Hot contact is not wired
HOT / NEUT.REV. Hot and neutral wirings are reversed
HOT / GRD.REV. Hot and ground wirings are reversed
W Caution
Use the Product as a simple instrument to detect nearly all
probable common improper wiring conditions. Read the Safety
Information that is provided with the product package.
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