Specifications - Fluke ProcessMeter 789 Calibration Manual

789
Calibration Manual

Specifications

All specifications apply from +18 °C to +28 °C unless stated otherwise.
All specifications assume a 5-minute warm-up period.
The standard specification interval is 1 year.
"Counts" refers to the number of increments or decrements of the least
significant digit.
DC Volts Measurement
Range (V dc)
4.000
40.00
400.0
1000
Input impedance: 10 M Ω (nominal), < 100 pF
Normal mode rejection ratio: > 60 dB at 50 Hz or 60 Hz
Common mode rejection ratio: > 120 dB at dc, 50 Hz, or 60 Hz
Overvoltage protection: 1000 V
DC Millivolts Measurement
Range (mV dc)
400.0
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 Ω (nominal), < 100 pF, ac-coupled
Common mode rejection ratio: > 60 dB at dc, 50 Hz, or 60 Hz
4
Resolution
0.001 V
0.01 V
0.1 V
1 V
Resolution
0. 1 mV
Resolution
50 Hz to 60 Hz
0.1 mV 0.7 % + 4
0.001 V 0.7 % + 2
0.01 V 0.7 % + 2
0.1 V 0.7 % + 2
1 V 0.7 % + 2
Note
Accuracy, ±(% of Reading + Counts)
0.1 % + 1
0.1 % + 1
0.1 % + 1
0.1 % + 1
Accuracy, ±(% of Reading + Counts)
0.1 % + 2
Accuracy, ±(% of Reading + Counts)
45 Hz to 200 Hz
1.2 % + 4
1.2 % + 4
1.2 % + 4
1.2 % + 4
1.2 % + 4
200 Hz to 500 Hz
7.0 % + 4
7.0 % + 4
7.0 % + 4
7.0 % + 4
7.0 % + 4