UT521 USERS MANUAL
6
3.General Specifications
3.1 Operating temperature and Relative humidity(20 5 & 75%RH):
3.2 Application standard:
IEC 61010-1 CATIII 600V Polluting Grading: Grade II
IEC 61557-1,5
IEC 61010-2-31
Range
Earth Voltage
Measure Range
0V~200V(50/60Hz)
Earth
Resistance
Best Accuracy
(1.0%+4)
(2.0%+10) (20 position)
(2.0%+3)(200 or 2000 position)
(Auxiliary earth resistance 500
(accuracy 5%);earth voltage 10Vac)
0.00 ~20.00
0.0 ~200.0
0 ~2000
20
200
2000
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