Section 2: Performance verification
Model DMM7510 7½ Digit Graphical Sampling Multimeter Calibration Manual
2-46
DMM7510-905-01 Rev. A / April 2015
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.