AEMC 5050 - Page 27

Megohmmeter Models 5050/5060 25
DC Voltage Measurement (duringinsulationtest):
Range Resolution Accuracy
40.0 to 99.9V 0.1V
1% of Reading ± 1ct100 to 1500V 1V
1501 to 5100V 2V
DC Voltage Measurement (afterinsulationtest):
Range Resolution Accuracy
25 to 5100V 0.2% Vn 5% of Reading ± 3cts
Typical build-up time for the measurement according to components tested
(Vdist = 0.03Vn).
Thesevaluesincludetheinuencescausedbythechargeofthecapacitivecom-
ponent,bytheautomaticrangesystemandtothetestvoltagecontrol.
Test Voltage Load
Non Capacitive
(unsmoothed
measurement)
With capacitance of 1µF
(smoothed measurement)
500V
1MΩ 3s 4s
100GΩ 8s 40s
1000V
1MΩ 3s 4s
100GΩ 8s 80s
2500V
3MΩ 3s 4s
100GΩ 8s 90s
5000V
5MΩ 4s 16s
100GΩ 8s 120s
Typical discharge time for a capacitive component to reach 25VDC.
Initial Voltage 500V 1000V 2500V 5000V
Discharge time (C in µF) C x 3s C x 4s C x 4s C x 7s
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