APPA 605 Manuale d'uso - Pagina 6

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Measuring Earth-Bond Resistance

1. Before starting the test :

(a) The circuit under test must be completely de-energized.

Check the fuse before testing.

Connecting to an energized circuit while the test is active

will blow the fuse.

See Testing the fuse later in this manual.

If the detected voltage is above 2V, ">2V" will appear on

the display.

In this condition, the test is inhibited.

(b) Short the test leads before measurement, and press the

blue button to compensate the probe resistance for <2Ω.

If the probe resistance is stored, "->0<-" symbol will be

displayed.

2. Lock mode : Press the Lock button to enter the Lock Mode.

Then press the TEST button to start the test. The test volt -

age will continue to be applied until the TEST/LOCK button

is pressed again.

3. The meter displays the "＞" symbol and the maximum resis-

tance for the range when measured resistance is higher than

the maximum display range.