Keysight U2741A, Service Manual

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Performance Test Calibration 2
U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 25
Optional AC current performance verification test
These tests are not intended to be performed with every
calibration. They are provided as an aid for verifying
additional instrument specifications.
AC current configuration:
( CONFigure:CURRent:AC [<range|MIN|MAX|AUTO>
[,resolution|MIN|MAX|DEF>]])
1 Select the AC Current function.
2 Select each range in the order based on the indicated
input current and frequency. Compare the measurement
results with the appropriate test limits shown in the
Table 2- 10 . (Be certain to allow for appropriate source
settling.)
[1]
Select NPLC 20 digit resolution.
Table 2-10 Optional AC current performance verification test
Current Input frequency Function
[1]
Range Error from nominal 1
year
10 mA 20 Hz
AC Current
10 mA ±0.16 mA
10 mA 45 Hz 10 mA ±0.16 mA
10 mA 1 kHz 10 mA ±0.06 mA
10 mA 10 kHz 10 mA ±0.22 mA
1 A 1 kHz 1 A ±6 mA
100 mA 1 kHz 1 A ±1.5 mA