Time Electronics 5069 Insulation Tester Calibrator - Manual (Page 6)

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5069 Technical Manual 6
4.
Typical Operation Ins tructions
5069 Ins-Cal Typical Operation Procedure
1) Fully charge the battery in the 5069.
2) Fully charge the battery in the insulation tester (or fit fresh batteries).
3) Complete the set up procedure for the insulation tester (UUT = Unit Under Test).
4) Connect the selected test leads to the 5069 (these are 4mm recessed sockets).
5) Adjust the pointer at zero on the UUT (meter display, if required).
6) Select O/C VOLTAGE setting on 5069 panel.
7) Plug the 4mm connectors into the UUT observing their polarities.
8) Switch on 5069 and select range of voltage measurement (X1/X10).
9) Select voltage range on UUT, and press the test button.
10) When the reading has stabilized record the o/c voltage reading on the 5069 display.
11) Select S/C CURRENT setting on 5069 panel.
12) On the 5069; select the current range (X1/X10).
13) Press the test button on the UUT, and record the current reading on the 5069 display.
14) Return to o/c Voltage setting (8) and repeat the test; (this is to check the voltage has
recovered). Switch off the output from the UUT.
15) Select resistance on the 5069 panel.
16) Set the resistance decade switches on the 5069 to the value required.
17) Note the lowest allowed voltage of the decades set on the 5069, and ensure that the
voltage set on the UUT does not exceed this rating.
Eg, if the 100M
Ω and 10MΩ decades are set, the highest allowed applied voltage must not
exceed 1KV.
18) Press the test button on the UUT. Please note on the higher resistance ranges, due to
the very low currents present, the display on the UUT may fluctuate and take time to settle,
please follow any precautions given by the tester manufacturer. Proceed and record all test
results, noting the allowed errors of the 5069 and also for that of the UUT.
Insulation Testers will vary from make to make so the controls may be different, however the
principles should still apply.
Observe Safety at all times and if possible, carry out the tests in a low humidity environment.