54
Accuracy Table
7
AC+DC current and auto A AC detection 600.0 A/2000 A (CM4373, CM4374)
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 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
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
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 −
2000 A (10 A to 1800 A) 1 A 10 Hz≤f<45 Hz ±1.8% rdg.±7 A ±2.3% rdg.±7 A
DC, 45 Hz≤f≤66 Hz ±1.3% rdg.±13 A ±1.8% rdg.±13 A
66 Hz<f≤1 kHz ±2.0% rdg.±7 A −
(1801 A to 2000 A) 1 A 10 Hz≤f<45 Hz ±2.8% rdg.±7 A ±3.3% rdg.±7 A
DC, 45 Hz≤f≤66 Hz ±2.3% rdg.±13 A ±2.8% rdg.±13 A
66 Hz<f≤1 kHz − −
Auto range movement threshold: 6000 counts or more for upper range, 540 counts or less for lower range.
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