Performance Tests and Calibration 6
U1253B User’s and Service Guide 147
33250A output
11 Press to select frequency counter
[6]
999.99 kHz 200 mVrms,
100 kHz
± 52 Hz
12 Press to select divide-by-100 frequency
counter mode
99.999 MHz 600 mVrms,
10 MHz
± 5.2 kHz
5520A output
13 Turn the rotary switch to the position
[7]
10.000 nF 10.000 nF ± 108 pF
100.00 nF 100.00 nF ± 1.05 nF
1000.0 nF 1000.0 nF ± 10.5 nF
10.000 μF 10.000 μF ± 105 nF
100.00 μF 100.00 μF ± 1.05 μF
1000.0 μF 1000.0 μF± 10.5 μF
10.000 mF 10.000 mF ± 105 μF
100.00 mF 100.00 mF ± 3.1 mF
14 Press to select temperature measurement
[8][13][14]
–40 °C to
1372 °C
0 °C
100 °C
± 1 °C
± 2 °C
15 Turn the rotary switch to the position 500 μA500 μA ± 0.3 μA
[9]
5000 μA 5000 μA± 3 μA
[9]
16 Press to select ACμA measurement
[1]
500 μA500 μA, 1 kHz
500 μA, 20 kHz
± 3.7 μA
± 3.95 μA
5000 μA 5000 μA, 1 kHz
5000 μA, 20 kHz
± 37 μA
± 39.5 μA
17 Turn the rotary switch to the
position
50 mA 50 mA ± 80 μA
[9]
440 mA 400 mA ± 0.65 mA
[9]
Table 6-2 Performance verification tests (continued)
Step Test function Range
Reference
signals/values
Error limits