Tektronix KEITHLEY DMM6500, Руководство по калибровке

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Section 2: Performance verification DMM6500 6½-Digit Multimeter with Scanning Calibration and Adjustment Manual
2-34 DMM6500-905-01 Rev. E June 2021
Zero verify the DMM6500:
1. On the calibrator, select the OPR/STBY key. Make sure that the front panel displays STANDBY .
2. Set the ranges to 100 mA.
3. Verify the DMM6500 zero reading for each range.
4. Source dc current from the following table. For each setting, be sure that the reading is within
stated limits.
5. Repeat these steps for the 1 A and 3 A ranges.
Verify dc current 100 mA range
Description Calibrator
setpoint (A)
Lower limit Upper limit
Full scale (+) 100 99.975 100.025
Half scale (+) 50 49.985 50.015
Half scale (–) -50 -50.015 -49.985
Full scale (–) -100 -100.025 -99.975
Verify dc current 1 A range
Description Calibrator
setpoint (A)
Lower limit Upper limit
Full scale (+) 1 0.99955 1.00045
Half scale (+) 0.5 0.49975 0.50025
Half scale (–) –0.5 -0.50025 -0.49975
Full scale (–) –1 -1.00045 -0.99955
Verify dc current 3 A range
Description Calibrator
setpoint (A)
Lower limit Upper limit
*Full scale (+) 2 1.99888 2.00112
Half scale (+) 1.5 1.49913 1.50087
Half scale (–) –1.5 –1.50087 –1.49913
*Full scale (–) –2 –2.00112 –1.99888
* The 3 A range full-scale test points are limited to 2 A in this table because of the accuracy
limitations of Fluke Models 57xxA and 5725A series calibrators at currents above 2.2 A.
Verify dc current 10 A range
See DC current 10 A range verification (on page 2-47) under Rear-panel verification (on page 2-46).