Fluke 789 - Technical Specifications; DC Volts Measurement Specifications

789/787B
Users Manual
38
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.
Note
“Counts” refers to the number of increments or
decrements of the least significant digit.
DC Volts Measurement
Range (V dc) Resolution Accuracy, ±(% of Reading + Counts)
4.000 0.001 V 0.1 % + 1
40.00 0.01 V 0.1 % + 1
400.0 0.1 V 0.1 % + 1
1000 1 V 0.1 % + 1
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