NI 4070/4072 Calibration Procedure
14
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58. Set the input resistance of the NI 4070/4072 to 10 M
Ω
by calling
niDMM_SetAttributeViReal64
with the following parameters:
•
Attribute_ID
=
NIDMM_ATTR_INPUT_RESISTANCE
•
Attribute_Value
=
NIDMM_VAL_10_MEGAOHM
59. Call
niDMM_Read
. Verify that this measurement falls between the
limits listed in Table 17.
60. Output –10 V on the calibrator.
61. Set the input resistance of the NI 4070/4072 to >10 G
Ω
by calling
niDMM_SetAttributeViReal64
with the following parameters:
•
Attribute_ID
=
NIDMM_ATTR_INPUT_RESISTANCE
•
Attribute_Value
=
NIDMM_VAL_GREATER_THAN_10_GIGAOHM
62. Call
niDMM_Read
. Verify that this measurement falls between the
limits listed in Table 17.
63. Set the input resistance of the NI 4070/4072 to 10 M
Ω
by calling
niDMM_SetAttributeViReal64
with the following parameters:
•
Attribute_ID
=
NIDMM_ATTR_INPUT_RESISTANCE
•
Attribute_Value
=
NIDMM_VAL_10_MEGAOHM
64. Call
niDMM_Read
. Verify that this measurement falls between the
limits listed in Table 17.
65. Output 100 V on the calibrator.
Caution
Avoid touching the connections when generating a high voltage from the
calibrator.
66. Call
niDMM_ConfigureMeasurement
with the following
parameters:
•
Function
=
NIDMM_VAL_DC_VOLTS
•
Range
=
100
•
Resolution
=
100e–6
67. Set the input resistance of the NI 4070/4072 to 10 M
Ω
by calling
niDMM_SetAttributeViReal64
with the following parameters:
•
Attribute_ID
=
NIDMM_ATTR_INPUT_RESISTANCE
•
Attribute_Value
=
NIDMM_VAL_10_MEGAOHM
68. Call
niDMM_Read
. Verify that this measurement falls between the
limits listed in Table 17.
69. Output –100 V on the calibrator.
70. Call
niDMM_Read
. Verify that this measurement falls between the
limits listed in Table 17.