User's Manual

© National Instruments Corporation 13 NI 4070/4072 Calibration Procedure
45. Set the input resistance of the NI 4070/4072 to >10 GΩ by calling
niDMM_SetAttributeViReal64 with the following parameters:
• Attribute_ID =
NIDMM_ATTR_INPUT_RESISTANCE
• Attribute_Value = NIDMM_VAL_GREATER_THAN_10_GIGAOHM
46. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 15.
47. Set the input resistance of the NI 4070/4072 to 10 MΩ by calling
niDMM_SetAttributeViReal64 with the following parameters:
• Attribute_ID =
NIDMM_ATTR_INPUT_RESISTANCE
• Attribute_Value = NIDMM_VAL_10_MEGAOHM
48. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 15.
49. Output –1 V on the calibrator.
50. Set the input resistance of the NI 4070/4072 to >10 GΩ by calling
niDMM_SetAttributeViReal64 with the following parameters:
• Attribute_ID =
NIDMM_ATTR_INPUT_RESISTANCE
• Attribute_Value = NIDMM_VAL_GREATER_THAN_10_GIGAOHM
51. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 15.
52. Set the input resistance of the NI 4070/4072 to 10 MΩ by calling
niDMM_SetAttributeViReal64 with the following parameters:
• Attribute_ID =
NIDMM_ATTR_INPUT_RESISTANCE
• Attribute_Value = NIDMM_VAL_10_MEGAOHM
53. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 15.
54. Output 10 V on the calibrator.
55. Call
niDMM_ConfigureMeasurement with the following
parameters:
• Function =
NIDMM_VAL_DC_VOLTS
• Range = 10
• Resolution = 10e–6
56. Set the input resistance of the NI 4070/4072 to >10 GΩ by calling
niDMM_SetAttributeViReal64 with the following parameters:
• Attribute_ID =
NIDMM_ATTR_INPUT_RESISTANCE
• Attribute_Value = NIDMM_VAL_GREATER_THAN_10_GIGAOHM
57. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 15.