Frequency Accuracy Calibration

This calibration procedure applies to all models (34460A/61A/65A/70A).

Review Test Considerations and Gain Calibration Considerations before beginning this procedure.

Configuration: Frequency, 10 V range

The frequency accuracy of the Fluke 5720A is insufficient to calibrate the DMM. Its frequency output needs to be calibrated against a more accurate reference. The Keysight 33500B Series Function/Arbitrary Waveform Generator is recommended for this calibration procedure.

1. Configure the instrument for frequency measurements at 10 V and 10 kHz, with 1 second gate time.
2. Apply a 10kHz sine wave, amplitude 20Vpp.
3. Enter the actual applied input frequency (see Entering Calibration Values). A Calibration Step Succeeded message indicates success; if the display shows Calibration Step Failed, check the input value, range, function, and entered calibration value and repeat the calibration step.
4. Store the new calibration constants (see Storing the Calibration Constants).

This calibration takes approximately 1 second to complete.

Next Procedure