CMI-2000
13
Typical Measurements and Accuracy
(cont’d)
Current Measurement
AC Current
Range
Accuracy Range
Accuracy at
40 Hz to 50 Hz†
Accuracy at
50 Hz to 60 Hz†
Accuracy at
60 Hz to 400 Hz†
200.0 A
0.0 A to 200.0 A
± (2.5% + 0.5 A)
± (2.0% + 0.5 A)
± (2.5% + 0.5 A)
2000 A
0 A to 500 A
± (3.0% + 5 A)
± (2.5% + 5 A)
± (3.0% + 5 A)
500 A to 1000 A
± (3.5% + 5 A)
± (3.0% + 5 A)
± (3.5% + 5 A)
1000 A to 2000 A
unspecified
± (3.0% + 5 A)
unspecified
DC Current
Range
Accuracy Range
Accuracy†
200.0 A
0.0 A to 200.0 A
± (2.0% + 0.5 A)
2000 A
0 A to 500 A
± (2.0% + 5 A)
500 A to 2000 A
± (3.0% + 5 A)
AC + DC Current
Range
Accuracy Range
Accuracy at
40 Hz to 50 Hz†
Accuracy at
50 Hz to 60 Hz†
Accuracy at
60 Hz to 400 Hz†
200.0 A
0.0 A to 200.0 A
± (3.5% + 0.8 A)
± (3.0% + 0.8 A)
± (3.5% + 0.8 A)
2000 A
0 A to 1000 A
± (3.5% + 8 A)
± (3.0% + 8 A)
± (3.5% + 8 A)
1000 A to 2000 A
unspecified
± (3.0% + 5 A)
unspecified
† Induced error for adjacent current carrying conductors is < 0.1 A/A.
Note: Use Δ if there is an offset before the measurement is taken.