TeraOhm 5kV
23
5.7. Step Voltage Insulation Resistance testing
Selecting this function displays the following states (initial state and state with results
after the completion of the measurement).
Initial display Display with results
Fig. 14. Step Voltage Insulation Resistance function display states
Insulation is measured in five equal time periods at test voltages from one fifth up to full
scale, see the figure 15. This function shows the level of the measured Insulation
Resistance versus the test voltage.
Measurement procedure:
- Connect the test leads to the instrument and to the measured object.
- Press the START key to start the measurement.
- Wait until set timer runs out, result is displayed.
- Wait until the object under test has discharged
- The result (see the right part of the figure 14.) can optionally be saved by pressing
the MEM key twice, see the chapter 6.1. Store, Recall and Clear Operation.
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0.2U
0.4U
0.6U
0.8U
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