
Model DMM7510 7½ Digit Graphical Sampling Multimeter Calibration Manual
Section 2: Performance verification
DMM7510-905-01 Rev. A / April 2015
2-39
Verify dry circuit accuracy
To verify dry circuit resistance accuracy:
1. Connect the Model DMM7510 INPUT and SENSE terminals to the calibrator as shown in the
following figure.
2. Set the calibrator for 4-wire resistance with external sense on.
3. On the Model DMM7510, press the
FUNCTION
key and select
4W Res
.
4. Press the
HOME
key.
5. Set the range to
1 Ω
.
6. Press the
MENU
key.
7. Select Measure
Settings
.
8. Set Dry Circuit
On
. Verify that Offset Compensation is on. (Selecting Dry Circuit should
automatically enable Offset Compensation.)
9. Source the nominal full-scale resistance values for the 1
Ω to 2 kΩ ranges as shown in the
following tables.
10.
For the 10 kΩ range, verify with 1.9 kΩ. Overrange is 2.4 kΩ for the 10 kΩ range.
11. Verify that the readings are within calculated limits.
Verify dry circuit resistance values
Use the following values to verify the performance of the Model DMM7510. Actual values depend on
published specifications (see
Calculating resistance reading limits
(on page 2-8)).
Range
Nominal calibrator
value
(Ω)
Typical reference
DMM reading
(Ω)
Lower limit
(Ω)
Upper limit
(Ω)
1
0
-8.00E-05
8.00E-05
1.000000
1.000
1.00
1.00
10
0
-8.00E-04
8.00E-04
10.00000
9.900
9.00
1.01