National Instruments NI PXI-5422

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.