AEMC 6505, User Manual

Page: 21 / 28

Megohmmeter Model 6505 - User Manual 21
Test
Voltage
500 V - 1000 V - 2500 V - 5000 V
Range
(10 to 999) kΩ
(1.000 to 3.999) MΩ
(4.00 to
39.99) MΩ
(40.0 to
399.9) MΩ
(0.400 to
3.999) GΩ
Resolution 1 kΩ 10 kΩ 100 kΩ 1 MΩ
Accuracy ±5 % of R 3 cts
Test
Voltage
500 V - 1000 V - 2500 V - 5000 V
1000 V
2500 V
5000 V
2500 V
5000 V
Range
(4.00 to
39.99) GΩ
(40.0 to
399.9) GΩ
(0.400 to
1.999) TΩ
(2.000 to
3.999) TΩ
(4.00 to
9.99) TΩ
Resolution 10 MΩ 100 MΩ 1 GΩ 10 GΩ
Accuracy ±5 % of R 3 cts ±15 % of R 10 cts
4.3.1 Accuracy in Variable Mode
R measured = Un / 250 pA
Test
Voltage
(40 to 160) V (170 to 510) V (520 to 1500) V (1600 to 5100) V
R measured
min
10 kΩ 10 kΩ 10 kΩ 10 kΩ
R measured
max
(160.0 to
640.0) GΩ
640.0 GΩ to
2.040 TΩ
(2.080 to
6.000) TΩ
(6.400 to 10.00)
TΩ
To obtain the accuracy in variable voltage mode, calculate using the fixed
voltages above.
4.3.2 Measurement of the Test Voltage after a Capacitive
Insulation Measurement
Measurement Range 25 to 5000 V
Resolution 0.2 % Un or 1 ct
Accuracy 5 % of Reading ± 3 cts
4.3.3 Calculation of Terms DAR and PI
Specified Range 0.02 to 50.00
Resolution 0.01
Accuracy 5 % of Reading ± 1ct