Keysight Technologies 34980A Service Manual page 48

3 Calibration Procedures
Frequency Gain Verification Test
Configuration: Frequency
1 Make sure you have read
2 Select the FREQUENCY function and set 6½ digits.
3 Select each range in the order shown below. Provide the input voltage and
Input
Vol tage Frequency
[1]
100 Hz
10 mV
1 V 100 kHz
[1] Verify only, No adjustment. For this test, isolate the calibrator's output from earth ground.
Q: Quick performance verification test points.
48
6½ digits
[SENSe:]FREQuency:APERture 1
frequency indicated. Compare measurement results to the appropriate test
limits shown in the table. (Be certain to allow for appropriate source settling.)
Range
100 mV
1 V Q
"DMM Test Considerations"
Quick
Check
24 hour
± 0.06 Hz
± 6 Hz
on page 42.
Error from Nominal
90 day
± 0.1 Hz
± 10 Hz
Keysight 34980A Service Guide
1 year
± 0.1 Hz
± 10 Hz