National Instruments NI 4070/4072 6 1/2-Digit FlexDMM 用户手册
NI 4070/4072 Calibration Procedure
24
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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:
Select one of the following options:
•
If you want to continue verifying other modes, go to the Verifying
2-Wire Resistance section.
2-Wire Resistance section.
•
If you do not want to verify other modes and you are performing a
post-adjustment verification, go to the
post-adjustment verification, go to the
section.
•
If you do not want to verify any additional modes and you are
performing a pre-adjustment verification, call
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:
following steps:
1.
Plug in the insulated banana plug shorting bar across the HI and LO
banana plug connectors on the NI 4070/4072.
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
OffsetCompOhms
Function
Range
Resolution
1
10 M
Ω
NIDMM_VAL_4_WIRE_RES
10e6
10
OFF
2
1 M
Ω
NIDMM_VAL_4_WIRE_RES
1e6
1
OFF
3
100 k
Ω
NIDMM_VAL_4_WIRE_RES
100e3
0.1
OFF
4
10 k
Ω
NIDMM_VAL_4_WIRE_RES
10e3
0.01
ON
5
1 k
Ω
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