Fluke 1526 user manual Using the Lock Function to Measure Insulation Resistance

MegOhmMeter

Using the Meter

Using the LOCK Function to Measure Insulation Resistance

The LOCK function holds the test voltage on the probes. Use LOCK to make long duration measurements without having to push and hold the TEST button.

To use the LOCK function:

1.Press the TEST button, then press the LOCK button, and then release both simultaneously.W

Warning

In this mode a potentially dangerous voltage is continuously applied to the probes.

In this mode, if the probes are disconnected from the circuit, the Meter cannot discharge any potentially dangerous capacitive voltages left on the circuit.

Caution

In this mode the Meter cannot indicate if the circuit is live.

Ensure that the circuit is de-energized before connecting the test probes in this mode.

2.Press LOCK or TEST to disengage the lock function.

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