Hioki CM4371 - Page 59

56
Accuracy Table
Rush Current (INRUSH) of AC+DC current
Range (Accuracy guarantee range) Resolution
Accuracy guarantee
frequency range
Measurement accuracy
2000 A (100 A to 1800 A) 1 A DC, 20 Hz≤f≤500 Hz ±3.3% rdg.±13 A
(1801 A to 2000 A) 1 A DC, 20 Hz≤f≤66 Hz ±5.0% rdg.±13 A
Rush Current (INRUSH peak value) of AC+DC current
Range (Accuracy guarantee range) Resolution
Accuracy guarantee
frequency range
Measurement accuracy
2000 A (±100 A to ±2300 A) 10 A DC, 20 Hz≤f≤500 Hz ±6.0% rdg.±100 A
(±2310 A to ±2840 A) 10 A DC, 20 Hz≤f≤66 Hz ±8.0% rdg.±100 A
9
AC voltage
CMRR: -60 dB or more (DC, 50 Hz/60 Hz, 1 k
Ω
unbalance)
Zero-display range: 5 counts or less
Coupling type: AC coupling
Crest factor: For 4000 counts or less, 3
For greater than 4000 counts and less than or equal to 6000 counts, 2
For 850 V or less, 2 (1000 V range only)
For greater than 850 V and less than or equal to 1000 V, 1.7
Peak detection time width: 1 ms or more (Filter off)
Overload protection: Lower of 1870 V DC/1100 V AC or 2×10
7
V • Hz (energized for 1 minute)
Transient overvoltage: 8000 V