FLIR CM275, User Manual

Page: 40 / 44

FLIR CM275 USER MANUAL Document Identifier: CM275-en-US_AC 40
Table 13.2 Current (TRMS)
Function Range Accuracy
DCA
60.00 A
±(2% + 5 dgt)
600.0 A
ACA
60.00 A
± (2% + 5dgt) 45 ~ 400Hz
600.0 A
ACA VFD
60.00 A
± (2% + 5 dgt) 45~65Hz
± (6% + 5 dgt) 65~400Hz
600.0 A
Notes:
Overload protection: 600A (rms)
Position Error: ±1% of reading.
AC Conversion Type and additional accuracy is same as AC Voltage.
DCA affected by the temperature and residual magnetism; use DCA Zero function to compensate.
If the meter measures a 4000-count signal and the Crest Factor of the signal is more then 3.0, the
reading may not meet specified tolerances. For non-sine waves (50/60 Hz), add the following Crest
Factor corrections:
For non-sine waves (50/60 Hz), add the following crest factor corrections:
For a crest factor of 1.0 2.0, add 3.0% to the accuracy.
For a crest factor of 2.0 2.5, add 5.0% to the accuracy.
For a crest factor of 2.5 3.0, add 7.0% to the accuracy.
Table 13.3 Frequency (ACA and ACV)
Function Range
Accuracy
Frequency
10.0~600.0 Hz
± (0.1% + 2 dgt)
6.000 kHz
60.00 kHz
Notes:
Overload protection: 1000V (rms) and 600 A (rms)
Trigger Sensitivity:
ACV function:
> 6V (rms) at 60.00V range for 10Hz ~ 1kHz
> 60V (rms) at 600.0V range for 10Hz ~ 1kHz
> 600V (rms) at 1000V range for 10Hz ~ 1kHz
Hz function at ACV rotary switch:
> 6V (rms) for 10Hz ~ 10kHz
> 30V (rms) for 10kHz ~ 60kHz
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