Keysight Technologies 34972A - Page 86

4 Calibration Procedures
86 Keysight 34970A/34972A Service Guide
Frequency Gain Verification Test
Configuration: Frequency
6½ digits
1 Make sure you have read “Test Considerations” on page 76.
2 Select Channel 210, select the FREQUENCY function and set 6½ digits.
3 Select each range in the order shown below. Compare measurement results to
the appropriate test limits shown in the table. (Be certain to allow for
appropriate source settling.)
Input
Range
Quick
Check
[a]
[a] Q: Quick performance verification test points.
Error from Nominal
Voltage Frequency 24 hour 90 day 1 year
10 mV
[b]
1 V
[b] Verify only, no adjustment. For this test, isolate the calibrator’s output from earth ground.
100 Hz
100 kHz
100 mV
1 V Q
± 0.06 Hz
± 6 Hz
± 0.1 Hz
± 10 Hz
± 0.1 Hz
± 10 Hz