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525A
Service Manual
Testing DC Voltage
The DC voltage amplitude accuracy test verifies the accuracy of DC voltage at the 525A
calibrator front panel Volts Source output. See Table 11.
Range
100 mV
1.0 V
10.0 V
100.0 V
24
Table 11. Testing DC Voltage
Nominal
Measured
Value (V)
Value
0
0.025
0.075
0.1
0
0.25
0.75
1
0
2.5
7.5
10
0
25
75
100
90 Day Spec.
Deviation %
(V)
0.000003
3.63E-06
4.88E-06
5.5E-06
0.00002
2.63E-05
3.88E-05
0.000045
0.0002
0.000263
0.000388
0.00045
0.002
0.002625
0.003875
0.0045
One Year
Spec. (V)
0.000003
3.75E-06
5.25E-06
0.000006
0.00002
2.75E-05
4.25E-05
0.00005
0.0002
0.000275
0.000425
0.0005
0.002
0.00275
0.00425
0.005
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