Performance Tests and Calibration 6Keysight U1253B User’s and Service Guide 173Performance Verification TestsUse the following performance verification tests to verify the measurementperformance of the U1253B true RMS OLED multimeter. These performanceverification tests are based on the specifications listed in the instrument data sheet.These performance verification tests are recommended as acceptance tests whenyou first receive the instrument. After acceptance, you should repeat theperformance verification tests at every calibration interval (to be performed beforecalibration to identify which measurement functions and ranges requirecalibration).Carry out the performance verification tests according to Table 6-2 on page 174.For every listed step:1 Connect the calibration standard terminals to the appropriate terminals on theU1253B true RMS OLED multimeter.2 Set up the calibration standard with the signals specified in the “Referencesignals/values” column (one setting at a time, if more than one setting is listed).3 Turn the rotary switch of the U1253B true RMS OLED multimeter to thefunction being tested, and choose the correct range, as specified in the table.4 Check whether the measured reading falls within the specified error limits fromthe reference value. If yes, then this particular function and range does notrequire adjustment (calibration). If not, then adjustment is necessary.
