Hioki CM4371 Mode D'emploi page 58

Accuracy Table
7
AC+DC current and auto A AC detection 600.0 A/2000 A (CM4373, CM4374)
Conditions of guaranteed
accuracy:
Zero-display range:
Coupling type:
Crest factor:
Peak detection time width: 1 ms or more (Filter off)
AC+DC current (Measurement value/MAX/MIN/AVG)
(Accuracy
Range
guarantee range)
600.0 A (1.0 A to 600.0 A)
2000 A (10 A to 1800 A)
(1801 A to 2000 A) 1 A
Auto range movement threshold: 6000 counts or more for upper range, 540 counts or less for lower range.
54
After zero adjustment has been performed
5 counts or less
DC coupling
For the 600.0 A range (500.0 A or less), 3
For the 600.0 A range (greater than 500.0 A and less than or equal to 600.0 A), 2.5
For the 2000 A range (1000 A or less), 2.84
For the 2000 A range (greater than 1000 A and less than or equal to 2000 A), 1.42
Accuracy guarantee
Resolution
frequency range
0.1 A 10 Hz≤f<45 Hz
DC, 45 Hz≤f≤66 Hz
66 Hz<f≤1 kHz
1 A 10 Hz≤f<45 Hz
DC, 45 Hz≤f≤66 Hz
66 Hz<f≤1 kHz
10 Hz≤f<45 Hz
DC, 45 Hz≤f≤66 Hz
66 Hz<f≤1 kHz
Measurement accuracy
Filter off Filter on
±1.8% rdg.±0.7 A ±2.3% rdg.±0.7 A
±1.3% rdg.±1.3 A ±1.8% rdg.±1.3 A
±2.0% rdg.±0.7 A −
±1.8% rdg.±7 A ±2.3% rdg.±7 A
±1.3% rdg.±13 A ±1.8% rdg.±13 A
±2.0% rdg.±7 A −
±2.8% rdg.±7 A ±3.3% rdg.±7 A
±2.3% rdg.±13 A ±2.8% rdg.±13 A
− −