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Table 1-2 Functional Test
Step Test function
16
ACmA
While the rotary
switch is in the
press the
[5]
17
DCA
Turn the rotary switch
to the
position.
[5] CAUTION: Connect the calibrator to the multimeter's A and COM terminals before applying the 3 A and 10 A input.
18
ACA
While the rotary switch
is in the
position, press the
key once.
U1271A/U1272A Service Guide
position,
key once.
Range
5520 output
30 mA
30 mA, 20 Hz
30 mA, 45 Hz
30 mA, 65 Hz
30 mA, 1 kHz
300 mA
300 mA, 20 Hz
300 mA, 45 Hz
300 mA, 65 Hz
300 mA, 1 kHz
3 A
10 A
3 A
3 A, 45 Hz
3 A, 65 Hz
3 A, 1 kHz
10 A
10 A, 45 Hz
10 A, 65 Hz
10 A, 1 kHz
Calibration Procedures
Performance Verification Tests
Error from nominal 1 year
U1271A
N/A
±0.295 mA
±0.295 mA
±0.295 mA
N/A
±2.95 mA
±2.95 mA
±2.95 mA
3 A
±0.0100 A
10 A
±0.04 A
±0.0325 A
±0.0325 A
±0.0325 A
±0.125 A
±0.125 A
±0.125 A
1
U1272A
±0.295 mA
±0.205 mA
±0.205 mA
±0.295 mA
±2.95 mA
±2.05 mA
±2.05 mA
±2.95 mA
±0.0100 A
±0.04 A
±0.0325 A
±0.0325 A
±0.0325 A
±0.125 A
±0.125 A
±0.125 A
17
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