Fluke 787 Welder User Manual


 
787
Users Manual
38
AC Current Measurement
Range
45 Hz to 2 kHz
Resolution Accuracy, ±(% of Reading + Counts) Typical Burden
Voltage
1.000A (Note) 0.001A 1% + 2 1.5V/A
Note: 440 mA continuous, 1A 30 seconds maximum
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
Overload protection 440 mA, 1000V fast-blow fuse
DC Current Measurement
Range Resolution Accuracy, ±(% of Reading + Counts) Typical Burden
Voltage
30.000 mA 0.001 mA 0.05% + 2 14 mV/mA
1.000A (Note) 0.001A 0.2% + 2 1.5V/A
Note: 440 mA continuous, 1A 30 seconds maximum
Overload protection: 440 mA, 1000V fast-blow fuse