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3
Calibration Procedures
Frequency Gain Verification Test
Configuration:
Frequency
6½ digits
[SENSe:]FREQuency:APERture 1
1 Make sure you have read “DMM Test Considerations" on page 53.
2 Select the FREQUENCY function and set 6½ digits.
3 Select each range in the order shown below. Provide the input voltage
and frequency indicated. Compare measurement results to the
appropriate test limits shown in the table. (Be certain to allow for
appropriate source settling.)
Input
Voltage
10 mV
1V
[1]
Frequency
Range
100 Hz
100 mV
100 kHz
1V
Quick
Check
Q
Error from Nominal
24 hour
90 day
1 year
± 0.06 Hz
± 0.1 Hz
± 0.1 Hz
± 6 Hz
± 10 Hz
± 10 Hz
[1] Verify only, No adjustment. For this test, isolate the calibrator’s output from earth ground.
Q: Quick performance verification test points.
34980A Service Guide
59