48
Accuracy Table
3
AC+DC current and auto A AC detection 20.00 A/600.0 A (CM4371, CM4372)
Conditions of guaranteed accuracy: After zero adjustment has been performed
Zero-display range: 5 counts or less
Coupling type: DC coupling
Crest factor: For the 20.00 A range, 7.5
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
Peak detection time width: 1 ms or more (Filter off)
AC+DC current (Measurement value/MAX/MIN/AVG)
Range
(Accuracy guarantee
range)
Resolution
Accuracy guarantee
frequency range
Measurement accuracy
Filter off Filter on
20.00 A (1.00 A to 20.00 A) 0.01 A 10 Hz≤f<45 Hz ±1.8% rdg.±0.10 A ±2.3% rdg.±0.10 A
DC, 45 Hz≤f≤66 Hz ±1.3% rdg.±0.13 A ±1.8% rdg.±0.13 A
66 Hz<f≤1 kHz ±2.0% rdg.±0.10 A -
600.0 A (1.0 A to 600.0 A) 0.1 A 10 Hz≤f<45 Hz ±1.8% rdg.±0.7 A ±2.3% rdg.±0.7 A
DC, 45 Hz≤f≤66 Hz ±1.3% rdg.±1.3 A ±1.8% rdg.±1.3 A
66 Hz<f≤1 kHz ±2.0% rdg.±0.7 A -
Auto range movement threshold: 2000 counts or more for upper range, 180 counts or less for lower range.
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