Fluke 789 Overview page 31

AC Volts Measurement
Range (ac)
400.0 mV
4.000 V
40.00 V
400.0 V
1000 V
Specifications are valid from 5 % to 100 % of amplitude range.
AC conversion: true rms
Maximum crest factor: 3 (between 50 and 60 Hz)
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
AC Current Measurement
Range
45 Hz to 2 kHz
1.000 A (Note)
Note: 440 mA continuous, 1 A 30 seconds maximum
Specifications are valid from 5 % to 100 % of amplitude range.
AC conversion: true rms
Maximum crest factor: 3 (between 50 and 60 Hz)
For non-sinusoidal waveforms, add
Overload protection 440 mA, 1000 V fast-blow fuse
Resolution
0.1 mV
0.001 V
0.01 V
0.1 V
1 V
Resolution
0.001 A
( 2 % reading + 2 % f.s.) typical
Accuracy, (% of Reading + Counts)
50 Hz to 60 Hz 45 Hz to 200 Hz
0.7 % + 4
0.7 % + 2
0.7 % + 2
0.7 % + 2
0.7 % + 2
Accuracy, (% of Reading + Counts)
1 % + 2
ProcessMeter
200 Hz to 500 Hz
1.2 % + 4 7.0 % + 4
1.2 % + 4 7.0 % + 4
1.2 % + 4 7.0 % + 4
1.2 % + 4 7.0 % + 4
1.2 % + 4 7.0 % + 4
Typical Burden
Voltage
1.5 V/A
Specifications
27