Fluke C9970 User Manual page 8

Voltage detector
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C9970
Users Guide
To connect the Bond:
1. Put on insulating gloves.
2. Connect the small clamp to a reliable ground source such as a cable
suspension strand.
3. Use the Product to test a metallic object such as a fixture, conduit, or bare
vertical ground wire and verify there is no voltage present before you
connect the Bond. See AC Hazardous Voltage Tests and DC Hazardous
Voltage Test.
4. Connect the large clamp to the metallic object: . Do not connect the Bond to
a support bracket of multiple line wire, the suspension strand of isolated
cable, street light wires, terminals that wires are attached to, or a fixture that
causes the red LED to flash.
You may remove the insulating gloves after the temporary bond is in place
and all protection requirements are met. Leave the temporary bond in place
until you complete the work at that location for the day.
To disconnect the Bond:
1. Put on insulating gloves.
2. Disconnect the large clamp from the metallic object.
3. Disconnect the small clamp from the ground source.
Ground Cord
The 25-ft retractable ground cord (the Cord) has clamps on both ends and is
designed for use in aerial applications where the user is near power transmission
lines and isolated from ground. When used appropriately, the Cord and the
conductive plastic end cap of the Product eliminate induced body voltage to
prevent false hazard indications.
Test Plug
The test plug (the Plug) is ac-operated and provides a suitable, current-limited,
reference voltage to verify proper operation of the Product. Use the Plug to verify
the lowest voltage (threshold voltage) at which the Product indicates danger. See
Test Plug Threshold Test.
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