Calibration Procedures 1
Performance Verification Tests
U1231A/U1232A/U1233A Service Guide 9
Table 1 - 2 Performance verification tests (continued)
Step Test function Range 5520 output
Error from nominal 1 year
U1231A U1232A U1233A
2
ACV Turn the rotary switch
to the position.
600 mV 600 mV, 45 Hz ±6.3 mV ±6.3 mV ±6.3 mV
600 mV, 1 kHz ±12.3 mV ±12.3 mV ±12.3 mV
6 V 6 V, 45 Hz ±0.063 V ±0.063 V ±0.063 V
6 V, 1 kHz ±0.123 V ±0.123 V ±0.123 V
60 V 60 V, 45 Hz ±0.63 V ±0.63 V ±0.63 V
60 V, 1 kHz ±1.23 V ±1.23 V ±1.23 V
600 V 600 V, 45 Hz ±6.3 V ±6.3 V ±6.3 V
600 V, 1 kHz ±12.3 V ±12.3 V ±12.3 V
3
Frequency While the
rotary switch is in the
position, press the key
once.
9.999 kHz 1 kHz, 0.12 V ±0.003 kHz ±0.003 kHz ±0.003 kHz
4
DCV Turn the rotary switch
to the position.
600 mV
[1]
600 mV ±3.2 mV ±3.2 mV ±3.2 mV
6 V 6 V ±0.032 V ±0.032 V ±0.032 V
60 V 60 V ±0.32 V ±0.32 V ±0.32 V
600 V 600 V ±3.2 V ±3.2 V ±3.2 V
[1] The accuracy is specified after the Null function is used to subtract the thermal effect (by shorting the test leads) before
measuring the signal.
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