Hioki CM4371 - Further Accuracy Tables; DC Voltage Accuracy

57
Accuracy Table
AC voltage (Measurement value/MAX/MIN/AVG)
Range
(Accuracy
guarantee
range)
Resolution
Accuracy
guarantee
frequency range*
Measurement accuracy Input
impedance
(at AC 50 Hz)
Filter off Filter on
6.000 V (0.000 V to
0.299 V)
0.001 V 15 Hz≤f<45 Hz ±1.5% rdg.±0.015 V ±2.0% rdg.
±0.015 V
3.2 M
Ω
±5%
45 Hz≤f≤66 Hz ±0.9% rdg.±0.013 V ±1.4% rdg.
±0.013 V
66 Hz<f≤1 kHz ±1.5% rdg.±0.015 V -
6.000 V (0.300 V to
6.000 V)
0.001 V 15 Hz≤f<45 Hz ±1.5% rdg.±0.005 V ±2.0% rdg.
±0.005 V
3.2 M
Ω
±5%
45 Hz≤f≤66 Hz ±0.9% rdg.±0.003 V ±1.4% rdg.
±0.003 V
66 Hz<f≤1 kHz ±1.5% rdg.±0.005 V -
60.00 V (3.00 V to
60.00 V)
0.01 V 15 Hz≤f<45 Hz ±1.5% rdg.±0.05 V ±2.0% rdg.±0.05 V 3.1 M
Ω
±5%
45 Hz≤f≤66 Hz ±0.9% rdg.±0.03 V ±1.4% rdg.±0.03 V
66 Hz<f≤1 kHz ±1.5% rdg.±0.05 V -
600.0 V (30.0 V to
600.0 V)
0.1 V 15 Hz≤f<45 Hz ±1.5% rdg.±0.5 V ±2.0% rdg.±0.5 V 3.0 M
Ω
±5%
45 Hz≤f≤66 Hz ±0.9% rdg.±0.3 V ±1.4% rdg.±0.3 V
66 Hz<f≤1 kHz ±1.5% rdg.±0.5 V -
1000 V (50 V to
1000 V)
1 V 15 Hz≤f<45 Hz ±1.5% rdg.±5 V ±2.0% rdg.±5 V 3.0 M
Ω
±5%
45 Hz≤f≤66 Hz ±0.9% rdg.±3 V ±1.4% rdg.±3 V
66 Hz<f≤1 kHz ±1.5% rdg.±5 V -
Auto range movement threshold: 6000 counts or more for upper range, 540 counts or less for lower range
.
* Frequency range of 15 Hz≤f<20 Hz is designed value.
Within the frequency range of f<45 Hz, the accuracy guarantee assumes a superposed DC voltage of less
than 500 V.