FLIR CM275 USER MANUAL Document Identifier: CM275-en-US_AC
13.3 Electrical Specifications
Accuracy is ± (% reading + number of digits (dgt)) at 73.4
°F ±9
°F (23°C ±5 °C), <80% RH.
Table 13.1 Voltage (TRMS)
Function Range Accuracy (of reading)
DCV
60.00V
± (1.0% + 5 dgt) 600.0V
1000 V
ACV
60.00 V
± (1.0% + 5 dgt)
45~400 Hz
600.0 V
1000 V
ACV VFD
60.00 V
± (1% + 5 dgt) 45~65 Hz
± (5% + 5 dgt) 65~400 Hz
600.0 V
1000 V
Lo Z (Low Impedance)
Range, resolution, and accuracy specifications for Low Impedance
(Lo Z) measurements are the same as DCV, ACV, and VFD
specifications shown above
Notes:
AC reading is <10 counts
Overload protection: 1000V (rms)
Input impedance: 1
AC conversion type: AC coupled, true RMS responding, calibrated to the RMS value of a sine wave
input. Accuracies are given for sine waves at full scale and non-sine waves below half scale.
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.
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