Fluke 787 Welder User Manual


 
ProcessMeter
Specifications
37
DC Millivolts Measurement
Range (mV dc) Resolution Accuracy (% of Reading + Counts)
400.0 0. 1 mV 0.1% + 1
AC Volts Measurement
Range (ac) Resolution Accuracy, ±(% of Reading + Counts)
50 Hz to 60 Hz 45 Hz to 200 Hz 200 Hz to 500 Hz
400.0 mV 0.1 mV 0.7% + 4 1.2% + 4 7.0% + 4
4.000V 0.001V 0.7% + 2 1.2% + 4 7.0% + 4
40.00V 0.01V 0.7% + 2 1.2% + 4 7.0% + 4
400.0V 0.1V 0.7% + 2 1.2% + 4 7.0% + 4
1000V 1V 0.7% + 2 1.2% + 4 7.0% + 4
Specifications are valid from 5% to 100% of amplitude range.
AC conversion: true rms
Maximum crest factor: 3
For non-sinusoidal waveforms, add
±
(2% reading + 2% f.s.) typical
Input impedance: 10 M
(nominal), < 100 pF, ac-coupled
Common mode rejection ratio: >60 dB at dc, 50 Hz, or 60 Hz