Performance Tests and Calibration 1Keysight 34450A Service Guide 495 Repeat step 1 through 4 for each gain adjustment point shown in the presetcalibration point box.6 When the calibration has been completed for the selected range, the statusbox shows DONE, and the value in the Calibration Range box flashes.7 Increase the range and continue the calibration by repeating steps 1 through 4.8 Verify the AC voltage gain adjustments using the “AC voltage verification test”on page 32.Table 1-13 AC voltage gain adjustmentInput Instrument SettingsVrms Frequency Function Range Cal ItemShorting plugs between 2 terminals AC voltage Any DC Offset1 × Full Scale200 V1 kHz1 kHz100 mV to 100 V750 VFLATNESS 1 kHz[a]1 × Full Scale200 V10 kHz10 kHz100 mV to 100 V750 VFLATNESS 10 kHz10 mV, 70 mV, 100 mV 1kHz 100 mV0.1 V, 0.7 V, 1 V 1kHz 1 V1 V, 7 V, 10 V 1kHz 10 V10 V, 70 V, 100 V 1kHz 100 V75 V, 200 V, 750 V 1kHz 750 VCaution: Set the calibrator output to 0 V before d isconnecting from the mul timeter input terminals.[a] AC voltage flatness calibration for 1 kHz and 10 kHz need to completed for one range (example 100 mV) first before proceeding to anotherrange (example 1 V).
