Model DMM7510 7½ Digit Graphical Sampling Multimeter Calibration Manual
Section 2: Performance verification
DMM7510-905-01 Rev. A / April 2015
2-11
100 mV to 1000 V DC voltage verification setup
To check 100 mV to 1000 V DC voltage accuracies, you will:
•
Apply accurate DC voltages from the calibrator to the Model DMM7510 front-panel terminals
•
Verify that the displayed readings fall within specified limits
Use the values in the following tables to verify the performance of the Model DMM7510. Actual values
depend on the published specifications (see
Example reading limit calculation
(on page 2-8)).
Use shielded low-thermal connections when testing the 100 mV and 1 V ranges to avoid errors
caused by noise or thermal effects. Connect the shield to the output LO terminal of the calibrator.
To verify DC voltage accuracy:
1. Set the calibrator to
OPERATE
.
2. Set the calibrator output to
0 V
.
3. Use a low-thermal cable to connect the Model DMM7510 HI and LO INPUT terminals to the
calibrator HI and LO terminals as shown in the following figure.
Figure 1: DC voltage 100 mV to 1000 V verification connections
4. Allow 5 minutes of settling time.
5. On the Model DMM7510, press the
FUNCTION
key and select
DC voltage
.
6. Press the
HOME
key.
7. Select
Range
and select
100 mV
.
8. Press
MENU
key. Under
Measure
, select
Settings
.
9. Set Input Impedance to
Auto
.
10. Press the
MENU
key.
11. Select
Calculations
.
12. Select
Rel Acquire
.
13. Source positive and negative full-scale and half-scale voltages and allow for proper settling, as
Verify the DC voltage 100 mV range
(on page 2-12).
14. Select each range on the Model DMM7510, allow for proper settling, and verify the 1 V to 1000 V
ranges according to the following tables.