Calibration Procedures 3
Keysight 34980A Service Guide 47
AC CURRENT Gain Verification Test
Configuration: AC Current
CONFigure:CURRent:AC
LF 3 HZ:SLOW
[SENSe:]CURRent:AC:BANDwidth 3
1 Make sure you have read “DMM Test Considerations” on page 42.
2 Set the AC CURRENT function and the 3 Hz input filter. With the slow filter
selected, each measurement takes 7 seconds to complete.
3 Select each range in the order shown below. Provide the input current and
frequency indicated. Compare measurement results to the appropriate test
limits shown in the table. (Be certain to allow for appropriate source settling.)
The 50 kHz ac voltage test points may fail performance verification if the DMM
internal shields have been removed and reinstalled. See “Gain Adjustment” on
page 51 for further information on how to recalibrate the ac voltage function.
Input
Quick
Check
Error from Nominal
Current Frequency Range 24 hour 90 day 1 year
10 mA
[1]
1 kHz 10 mA ± 14 µA ± 14 µA ± 14 µA
100 mA
[1]
1 kHz 100 mA Q ± 600 µA ± 600 µA ± 600 µA
10 mA 1 kHz 1 A ± 1.41 mA ± 1.41 mA ± 1.41 mA
1A
[1]
1 kHz 1 A ± 1.4 mA ± 1.4 mA ± 1.4 mA
[1] Verify only, no adjustment.
Q: Quick performance verification test points.
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