Extech Instruments CB10 User Manual page 2

Plug the Transmitter / Receptacle Tester into a powered
1.
outlet. The two green LED's should illuminate.
2. Rotate the Receiver's Sensitivity adjustment from the OFF
position to the HI position. The red LED should turn on. If the
LED does not turn on, replace the battery.
Test the operation of the Receiver by placing it in close
3.
proximity to the transmitter. The receiver should beep and
the LED should flash.
4. At the breaker panel, set the sensitivity to the HI position and
hold the receiver as indicated by the "UP – DOWN" label.
5. Move the receiver along the row of breakers until the selected
circuit is identified by the beep and flashing light.
6. Reduce the sensitivity as needed to pinpoint the exact circuit
breaker controlling the circuit.
Receptacle Wiring Test
1. Plug the Transmitter / Receptacle tester into the outlet.
2. The three LED's will indicate circuit condition. The diagram
lists all of the conditions that the CB10 can detect. The LED's
in this diagram represent the view from the GFCI button side
of the transmitter. When viewing the other side of the
transmitter the LED's will be a mirror image of those shown
here.
3. The tester will not indicate the quality of the ground
connection, 2 hot wires in a circuit, a combination of defects,
or reversal of ground and neutral conductors.
Receptacle GFCI Test
1. Before using the tester, press the TEST button on the installed
GFCI receptacle, the GFCI should trip. If it does not trip, do not
use the circuit and call a qualified electrician. If it does trip,
press the RESET button on the receptacle.
2. Plug the Transmitter / Receptacle tester into the outlet. Verify
that the wiring is correct as described above.
3. Press and hold the test button on the tester for at least 8
seconds, the indicator lights on the tester will shut off when
the GFCI trips.
4. If the circuit does not trip, either the GFCI is operable but the
wiring is incorrect, or the wiring is correct and the GFCI is
inoperable.
Replacing the Battery
1. When the battery drops below the operating voltage the
receiver's LED will not light. The battery should be replaced
2. Remove receiver battery cover by removing the screw using a
Philips head screwdriver. (The Transmitter is line powered.)
3. Install 9 volt battery observing the correct polarity.
4. Re-install battery cover
5. Dispose of the old battery properly.
Two-year Warranty
Teledyne FLIR warrants this Extech brand instrument to be
free of defects in parts and workmanship for two years from
date of shipment (a six-month limited warranty applies to
sensors and cables). To view the full warranty text please visit:
http://www.extech.com/support/warranties.
Calibration and Repair Services
Teledyne FLIR offers calibration and repair services for the
Extech brand products we sell. We offer NIST traceable
calibration for most of our products. Contact us for
information on calibration and repair availability, refer to the
contact information below. Annual calibrations should be
performed to verify meter performance and accuracy. Product
specifications are subject to change without notice. Please visit
our website for the most up-to-date product information:
www.extech.com.
Contact Customer Support
Customer Support Telephone List:
https://support.flir.com/contact
Calibration, Repair, and Returns: repair@extech.com
Technical Support: https://support.flir.com
Copyright © 2023 Teledyne FLIR Commercial Systems, Inc.
All rights reserved including the right of reproduction in whole or in
part in any form
www.extech.com
This document does not contain any export-controlled information
CB10-en-US_v2.2 5/23