Performance Tests and Calibration 6
U1253B User’s and Service Guide 145
5 Press to select AC V measurement
[1]
5 V 5 V, 1 kHz
5 V, 10 kHz
4.5 V, 20 kHz
4.5 V, 100 kHz
± 22.5 mV
± 79.0 mV
± 169.5 mV
± 169.5 mV
50 V 50 V, 1 kHz
50 V, 10 kHz
45 V, 20 kHz
45 V, 100 kHz
± 225 mV
± 790 mV
± 1.695 V
± 1.695 V
500 V 500 V, 1 kHz ± 2.25 V
1000 V 1000 V, 1 kHz ± 8.0 V
6 Turn the rotary switch to the position
Press to select DC mV measurement
50 mV 50 mV ± 75 μV
[2]
500 mV 500 mV
–500 mV
± 175 μV
± 175 μV
1000 mV 1000 mV
–1000 mV
± 0.75 mV
± 0.75 mV
Table 6-2 Performance verification tests (continued)
Step Test function Range
Reference
signals/values
Error limits