Insulation Resistance - TESTBOY TV 465 PRO Bedienungsanleitung

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Testboy TV 465

Insulation resistance

10.1.13
The insulation resistance test checks the resistance between live conductors and earthed
(or isolated) accessible metal parts of a device under test. This test can disclose faults
caused by pollution, moisture, deterioration of the insulation material etc.
The instrument measures the insulation resistance between:

The mains test socket (L+N) and PE / (S/EB1) terminals.
This function is primarily intended for testing Class I appliances.
Test parameters for insulation resistance measurement
OUTPUT Test voltage [250 V, 500 V]
LIMIT
Minimum resistance [0.01 M, 0.10 M, 0.25 MΩ, 0.30 M, 0.50 M,
1 M, 2 M, 4 M, 7 M, 10 M, --- M]
TIME Measuring time [2 s, 3 s, 5 s, 10 s, 30 s, 60 s, 120 s, --- s]
Test circuits for Insulation resistance measurement
Insulation resistance measurement procedure

Select the INSULATION function.

Set the test parameters.

Connect device under test to the instrument (see figure 5.8).

Press the TEST key for measurement.

Store the result by pressing MEM key (optional).
Figure 0.38: Examples of Insulation resistance measurement results
Displayed results:
Main result ............. Insulation resistance
Figure 0.36: Insulation menu
Figure 0.37: Measurement of insulation resistance
95
Single test