© National Instruments Corporation 47 NI PXI-5422 Calibration Procedure
8. Take the following voltage measurements at the NI PXI-5422 CH 0
front panel connector into a high-impedance load:
a. 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: 50000
b. Cal l 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
c. Wait 500 ms for the output to settle.
d. Use the DMM to measure the voltage output by the device.
This measurement is measurement 0, which is used in step 9.
e. 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
f. 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
g. Wait 500 ms for the output to settle.
h. Use the DMM to measure the voltage output by the device.
This measurement is measurement 1, which is used in step 9.