CM-660 • CM-860 • CM-960 • CMH-600 • CMI-600
15
Typical Measurements and Accuracy
(cont’d)
Current Measurement
(cont’d)
AC and DC Clamp
A
Hz
AC Current (CM-960 and CMI-600 only)
Range
Accuracy Range
Accuracy at
50 Hz to 100 Hz*†
Accuracy at
100 Hz to 400 Hz*†
60.00 A
0.00 A to 8.99 A
± (1.8% + 0.15 A)
± (2.0% + 0.15 A)
9.00 A to 60.00 A
± (1.8% + 0.05 A)
± (2.0% + 0.05 A)
600.0 A
60.0 A to 600.0 A
± (1.8% + 0.5 A)
± (2.0% + 0.5 A)
* Maximum crest factor < 2:1 at full scale and < 4:1 at half scale.
AC Current (CM-660, CM-860, and CMH-600 only)
Range
Accuracy Range
Accuracy at
50 Hz to 100 Hz*†
Accuracy at
100 Hz to 400 Hz*†
60.00 A
0.00 A to 0.19 A
unspecified
unspecified
0.20 A to 5.99 A
± (1.8% + 0.15 A)
± (2.0% + 0.15 A)
6.00 A to 60.00 A
± (1.8% + 0.05 A)
± (2.0% + 0.05 A)
600.0 A
60.0 A to 600.0 A
± (1.8% + 0.5 A)
± (2.0% + 0.5 A)
* For any measurement, when the conductor is not positioned on the center of the
jaws, add 2.0% to the accuracy for position error.
DC Current (CM-960 and CMI-600 only)
Range
Accuracy Range
Accuracy†
60.00 A
0.00 A to 8.99 A
± (2.0% + 0.15 A)
9.00 A to 60.00 A
± (2.0% + 0.05 A)
600.0 A
60.0 A to 600.0 A
± (2.0% + 0.5 A)
AC + DC Current (CM-960 and CMI-600 only)
Range
Accuracy Range
Accuracy at
50 Hz to 100 Hz†
Accuracy at
100 Hz to 400 Hz†
60.00 A
0.00 A to 8.99 A
± (2.2% + 0.15 A)
± (2.7% + 0.17 A)
9.00 A to 60.00 A
± (2.2% + 0.05 A)
± (2.7% + 0.07 A)
600.0 A
60.0 A to 600.0 A
± (2.2% + 0.5 A)
± (2.7% + 0.7 A)
† Induced error for adjacent current carrying conductors is < 0.01 A/A.
Note: Use Δ if there is an offset before the measurement is taken.
Summary of Contents for Greenlee CM-660
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