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NI PXI-5422 Calibration Procedure 40 ni.com
f. Call niFgen_SetAttributeViInt32 to set the gain DAC value
(niFgen property node: Calibration»Gain DAC Value) using the
following parameters:
• vi: The session handle returned from
niFgen_InitExtCal
• channelName: "0"
• attributeID: NIFGEN_ATTR_GAIN_DAC_VALUE
• value: 1000
g. Call niFgen_Commit (niFgen Commit VI) to commit the
attribute values to the device using the following parameter:
• vi: The session handle returned from
niFgen_InitExtCal
h. Wait 500 ms for the output to settle.
i. Use the DMM to measure the voltage output by the device. This
measurement is
measurement 1, which is used in step 8.
j. Call
niFgen_SetAttributeViInt32 to set the offset DAC
value (niFgen property node: Calibration»Offset DAC Value)
using the following parameters:
• vi: The session handle returned from
niFgen_InitExtCal
• channelName: "0"
• attributeID: NIFGEN_ATTR_OFFSET_DAC_VALUE
• value: 15000
k. Call niFgen_Commit (niFgen Commit VI) to commit the
attribute values to the device using the following parameter:
• vi: The session handle returned from
niFgen_InitExtCal
l. Wait 500 ms for the output to settle.
m. Use the DMM to measure the voltage output of the device. This
measurement is
measurement 2, which is used in step 8.