66 34410A/11A/L4411A Service Guide
3 Calibration Procedures
Gain Verification
This procedure is used to check the “full scale” reading accuracy of the
instrument. Verification checks are performed only for those functions and
ranges with unique gain calibration constants.
DC Volts Gain Verification Test
1 Make sure you have read “Test Considerations” on page 63.
2 Connect the calibrator to the input terminals.
a For the 34410A/11A use the front panel input terminals and select
the Front input terminals with the Front/Rear switch.
3 Select each function and range in the order shown below. Provide the
input shown in the table below.
4 Make a measurement and return the result. Compare measurement
results to the appropriate test limits shown in the table. (Be certain to
allow for appropriate source settling when using the Fluke 5720A.)
[1] Select 100 NPLC.
Q: Quick performance verification test points.
Input Quick
Check
Error from Nominal
Voltage Function
[1]
Range 24 hour 90 day 1 year
100 mV DC Volts 100 mV ± 6 µV ± 7.5 µV ± 8.5 µV
–100 mV 100 mV ± 6 µV ± 7.5 µV ± 8.5 µV
1 V 1 V ± 26 µV ± 37 µV ± 42 µV
10 V 10 V Q ± 190 µV ± 250 µV ± 350 µV
–10 V 10 V ± 190 µV ± 250 µV ± 350 µV
100 V 100 V Q ± 2.6 mV ± 4.1 mV ± 4.6 mV
1000 V 1000 V ± 26 mV ± 41 mV ± 56 mV
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