Calibration Procedures 1Keysight U1281A/U1282A Service Guide 51Vsense (non-contact voltage) calibration1 Turn rotary switch to position with the shown on the display.2 Connect a dual open type banana plug into the output voltage terminals of thecalibrator.3 Ensure the EARTH button of calibrator is on.4 Hold the multimeter so that the top of the multimeter is vertically andhorizontally centered and in contact with the banana plug’s Hi terminal.5 Set the source output to 10 V/55 Hz.6 Press to start the calibration. If the calibration is successful, willbe displayed.7 Set the source output to 30 V/55 Hz.8 Press to start the calibration process.9 Set the calibrator to standby mode when the calibration is done.See Figure 1-8 for the multimeter display.NOTE – Ensure the multimeter is REMOVED from the holster prior to performing thiscalibration.– Keep the multimeter away from fluorescent lights, dimmable lights, motors,and other electrical noise sources when running the tests. These electricalnoise sources can invalidate the calibration.– It may be necessary in step 4 and step 8 below to slightly adjust the positionof the multimeter for maximum signal strength.VHz SaveHz Save