21
Note: This function is Independent of the Buzzer ON/OFF mode.
9.1.5 Insulation test LOCK
To lock the insulation ON:
1. Select one of the test voltages on the MW measurement mode using the range knob
MW
.
2. Connect the test leads to the circuit to be measured.
3. Press and hold down the TEST button. Whilst the test is running, press the LOCK button. Release the LOCK and TEST buttons.
The LOCK symbol should be displayed and the test will continue to run.
DO NOT DISCONNECT THE TEST LEADS WHILST THE TEST IS LOCKED ON AS THE CIRCUIT CAN BE LEFT IN A CHARGED AND
HAZARDOUS CONDITION.
To unlock the insulation test, press the TEST button.
9.1.6 Leakage current
To display the insulation test value as a leakage current:
1. Select one of the test voltages on the MW measurement mode using the range knob [
MW
].
2. Connect the test leads to the circuit to be measured.
3. Press and hold down the TEST button. Whilst the test is running also press the uA/s/v button as shown below:
- Figure 21
The display will replace the insulation test voltage with the leakage current during the insulation test, as below:
G
G
0
0.01
0.1
110
100
W
8
W
G
A
µ
Note: Smaller readout displays leakage current.
- Figure 22
4. Press the uA/s/v button again to return to test voltage display.
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