Klein Tools ET250 Manuel D'instructions page 7

CONTINUITY
Remove power from circuit. Test for continuity by applying test leads
to the system being tested. The tester automatically enters continuity
testing mode. If resistance < 270kΩ is detected, an audible signal will
sound and the continuity icon " " will show in the display indicating
continuity. If the circuit is open, "
DO NOT attempt to measure continuity on a live circuit.
GFCI TESTING
CAUTION: Check the GFCI Receptacle user manual for more
information. Always contact a qualified electrician to resolve wiring
problems. Operate the Test Button on the GFCI Receptacle. If the
GFCI circuit does not trip, the receptacle is not operating properly.
CAUTION: To resolve wiring or GFCI concerns, contact a
qualified electrician.
To test the functionality of a receptacle protected by a Ground Fault
Circuit Interrupter (GFCI), apply leads to the hot/live and ground
terminals. Press the GFCI Test button on the ET250 tester.
• If the GFCI device is wired properly, the GFCI will trip and the
circuit will become de-energized. The ET250 tester will stop
indicating voltage.
• If the GFCI receptacle is incorrectly wired, the power to the circuit
will remain and the ET250 will continue to indicate voltage. Contact
a qualified electrician to resolve wiring problems.
NOTE: The GFCI Test mode on this tester is deactivated in the
presence of voltages > 135V.
OPERATING INSTRUCTIONS
" will show in the display.
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