National Instruments NI 4070/4072 6 1/2-Digit FlexDMM Graphics Tablet User Manual


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NI 4070/4072 Calibration Procedure 14 ni.com
58. 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
59. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 15.
60. Output –10 V on the calibrator.
61. 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
62. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 15.
63. 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
64. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 15.
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 MΩ 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 15.
69. Output –100 V on the calibrator.
70. Call
niDMM_Read. Verify that this measurement falls between the
limits listed in Table 15.
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