Voltage Measurement - Textron Greenlee CM-660 Manuel D'instructions

Typical Measurements and Accuracy
Refer to the "Specifications" section for operating conditions and temperature
coefficient.
Accuracy is specified as follows: ± (a percentage of the reading + a fixed amount) at
23 °C ± 5 °C (73.4 °F ± 9 °F).
Frequency must be within the specified bandwidth for non-sinusoidal waveforms.
Crest factors, unless otherwise specified, are as follows:
• Crest factor < 2.5:1 at full scale
• Crest factor < 5.0:1 at half scale
Frequency
Function
600 V
60.0 A AmpTip™
60.00 A, 600.0 A
* DC bias must be less than 50% of the Sine RMS value.
Accuracy of Frequency Range
Display Range

Voltage Measurement

EF
V
Hz
VFD
AC Voltage
Accuracy at
Range
50 Hz to 60 Hz
600.0 ± (1.0% + 0.5 V)
Input Impedance: 10 MΩ, 100 pF nominal
CM-660 • CM-860 • CM-960 • CMH-600 • CMI-600
Sensitivity (Sine RMS)*
xx.xx
xxx.x
SELECT
DC Voltage
Range
600.0 ± (1.0% + 0.5 V)
50 V
40 A
40 A
± (1.0% + 0.05 Hz)
± (1.0% + 0.5 Hz)
Accuracy
Range
5.00 Hz ~ 999.9 Hz
50.00 Hz ~ 400.0 Hz
50.00 Hz ~ 400.0 Hz
Accuracy
VFD
SELECT
AC + DC Voltage
(CM-960, CMI-600 only)
Accuracy at DC,
Range
50 Hz to 60 Hz
600.0 ± (1.2% + 0.7 V)
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