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NI 4070/4072 Calibration Procedure 24 ni.com
6. Repeat step 5 for each of the remaining iterations listed in Table 8.
You have completed verifying the 4-wire resistance of the NI 4070/4072.
Select one of the following options:
• If you want to continue verifying other modes, go to the Verifying
2-Wire Resistance section.
• If you do not want to verify other modes and you are performing a
post-adjustment verification, go to the Completing the Adjustment
Procedures section.
• If you do not want to verify any additional modes and you are
performing a pre-adjustment verification, call
niDMM_close to close
the session.
Verifying 2-Wire Resistance
To verify the 2-wire resistance of the NI 4070/4072, complete the
following steps:
1. Plug in the insulated banana plug shorting bar across the HI and LO
banana plug connectors on the NI 4070/4072.
2. Wait one minute for the thermal EMF to stabilize.
3. Call
niDMM_reset.
Table 8. niDMM_ConfigureMeasurement Parameters
Iteration
Calibrator
Output
niDMM_ConfigureMeasurement Parameters
OffsetCompOhmsFunction Range Resolution
1 10 MΩ NIDMM_VAL_4_WIRE_RES 10e6 10 OFF
2 1MΩ NIDMM_VAL_4_WIRE_RES 1e6 1 OFF
3 100 kΩ NIDMM_VAL_4_WIRE_RES 100e3 0.1 OFF
4 10 kΩ NIDMM_VAL_4_WIRE_RES 10e3 0.01 ON
5 1kΩ NIDMM_VAL_4_WIRE_RES 1e3 1e–3 ON
6 100 Ω NIDMM_VAL_4_WIRE_RES 100 100e–6 ON
7 0 Ω NIDMM_VAL_4_WIRE_RES 10e6 10 OFF
8 0 Ω NIDMM_VAL_4_WIRE_RES 1e6 1 OFF
9 0 Ω NIDMM_VAL_4_WIRE_RES 100e3 0.1 OFF
10 0 Ω NIDMM_VAL_4_WIRE_RES 10e3 0.01 ON
11 0 Ω NIDMM_VAL_4_WIRE_RES 1e3 1e–3 ON
12 0 Ω NIDMM_VAL_4_WIRE_RES 100 100e–6 ON