Specifications - Fluke ProcessMeter 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 0.001 V
40.00 0.01 V
400.0 0.1 V
1000 1 V
Ω
Input impedance: 10 M
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) Resolution
400.0 mV 0.1 mV
4.000 V 0.001 V
40.00 V 0.01 V
400.0 V 0.1 V
1000 V 1 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
Ω
Input impedance: 10 M
Common mode rejection ratio: >60 dB at dc, 50 Hz, or 60 Hz
Note
Resolution
(nominal), <100 pF
Resolution
0.1 mV
50 Hz to 60 Hz
0.7 % + 4
0.7 % + 2
0.7 % + 2
0.7 % + 2
0.7 % + 2
±
(2 % reading + 2 % f.s.) typical
(nominal), <100 pF, ac-coupled
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
ProcessMeter™
Specifications
200 Hz to 500 Hz
7.0 % + 4
7.0 % + 4
7.0 % + 4
7.0 % + 4
7.0 % + 4
5