Keithley DMM7510 Calibration Manual page 53

Section 2: Performance verification
2. Set the calibrator for 2-wire resistance with external sense off.
3. On the Model DMM7510, press the FUNCTION key and select 2W Res.
4. Press the HOME key.
5. Set the range to 100 MΩ.
6. Source the nominal full-scale resistance values for the 100 MΩ range as shown in the following
table.
Range
1.0E+08
Verify resistance 909 MΩ on the 1 GΩ range
1. Connect the Model DMM7510 INPUT to the discrete shielded 909 MΩ reference resistor.
2. On the Model DMM7510, press the FUNCTION key and select 2W Res.
3. Press the HOME key.
4. Set the range to 1GΩ.
5. Verify the 1 GΩ range as shown in the following table.
Range
1.0E+09
2-44
Model DMM7510 7½ Digit Graphical Sampling Multimeter Calibration Manual
Nominal calibrator Actual calibrator
values (Ω) (Ω)
0.00E+00
1.00E+08 1.0000380E+08
Figure 6: 1 GΩ verification connections
Nominal calibrator Typical reference
value DMM reading
(Ω) (Ω)
9.09E+08 9.081948E+08
Lower limit (Ω) Upper limit (Ω)
-3.00E+03 3.00E+03
9.980079E+07 1.002068E+08
Lower limit Upper limit
(Ω) (Ω)
8.999210E+08 9.164686E+08
DMM7510-905-01 Rev. A / April 2015