Keithley DMM7510 Calibration Manual page 55

Section 2: Performance verification
4. Connect the calibrator, shunt, Model DMM7510, and reference DMM as shown in the following
figure.
5. Set up the Model DMM7510 to the DC current function and range.
6. On the calibrator, select the OPR/STBY key. Ensure that the front panel displays STANDBY.
7. On the reference DMM, disconnect internal connects using the Input OFF command,
minimizing measurement noise across the shunt.
8. Verify the Model DMM7510 zero reading for each range.
9. Rel the Model DMM7510.
10. On the calibrator, select the OPR/STBY key. Ensure that the front panel displays OPERATE.
11. Set the reference DMM to DC Voltage, 2 V range.
12. Set the calibrator to source 0 V.
13. On the reference DMM, enable internal terminals using the Input FRONT command.
14. Perform Zero Range for system offset removal. Note that for the 10 µA and 100 µA Model
DMM7510 verification measurement, ensure the reference DMM Input OFF command is used
to reduce measurement and system noise.
15. Set the calibrator to source the voltage identified in the 10 µA procedure, verifying the Model
DMM7510 accuracy from calculated reference DMM Voltage/Characterized shunt.
16. For 100 µA verification, set the reference DMM to the 20 V range.
17. Repeat steps 6 to 14 for 100 µA verification.
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Model DMM7510 7½ Digit Graphical Sampling Multimeter Calibration Manual
DMM7510-905-01 Rev. A / April 2015