Specifications - Fluke 789 User Manual

789/787B
Users Manual

Specifications

All specifications apply from +18 °C to +28 °C unless
stated otherwise.
All specifications assume a 5-minute warm-up period.
DC Volts Measurement
Range (V dc)
4.000
40.00
400.0
1000
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
38
Resolution
0.001 V
0.01 V
0.1 V
1 V
(nominal), < 100 pF
The standard specification interval is 1 year.
"Counts" refers to the number of increments or
decrements of the least significant digit.
Accuracy, ±(% of Reading + Counts)
0.1 % + 1
0.1 % + 1
0.1 % + 1
0.1 % + 1
Note