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1507/1503
Users Manual
12
Measuring Volts
INSULATION TESTER
1507
bbw09f.emf
Figure 5. Measuring Volts
Measuring Earth-Bond Resistance
Resistance tests should only be performed on
de-energized circuits. Check the fuse before testing. See
Testing the Fuse later in this manual. Connecting to an
energized circuit while the test is active will blow the fuse.
Note
Measurements can be adversely affected by
impedances of additional operating circuits
connected in parallel or by transient currents.
To measure resistance:
1. Insert test probes in the Ω and
COM input terminals.
See Figure 6.
2. Turn the rotary switch to the position.
3. Short the ends of the probes together, press the blue
button and wait until dashes appear on the display.
The Tester measures the probe resistance, stores the
reading in memory, and subtracts it from readings.
The probe resistance reading is saved even when the
Tester is turned off. If the probe resistance is >2 Ω,
the resistance will not be saved.
4. Connect the probes to the circuit to be measured. The
Tester automatically detects if the circuit is energized.
1.888.610.7664 sales@GlobalTestSupply.com
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