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Microtest 8740 - Page 56

Microtest 8740
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55
(9) All nets
This is the most fundamental test method for the high voltage insulation test; high voltage is connected
to the test pin A and the other pins are grounded to observe its current leakage or insulation value, and
then high voltage is connected to test pin B and the other pins are grounded to observe its current
leakage or insulation value and so on. High voltage is connected to each pin while other pins are
grounded to observe their current leakage or insulation value. This way it can confirm that all the test
pin high voltage insulation tests have no problems, and the number of tests for this method is N-1
times. This test method is more accurate and it can find the insulation and current leakage value for
each pin; its disadvantage is that it is slower.
One to other test method
(10) Test time
Set the DC insulation and AC voltage continuation time for [9] All nets;
the continuation time can be set between 0.01Sec-60Sec.
(11) Ground pin
Ground pin set
Select S6 [NEXT PAGE] and the LCD screen will display as follows:

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