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NI PXIe-4463 Calibration Procedure
Adjustment
An adjustment is required at least once every two years to warrant the published specifications
for the next calibration interval. An adjustment is recommended even if the NI PXIe-4463
successfully passed each of the verification procedures within the As Left test limits
without
adjustment
. Performing an adjustment procedure improves the device accuracy and resets the
calibration interval.
Upon successful completion of an adjustment procedure, the calibration constants, date, and
temperature in the device EEPROM are automatically updated.
To update the calibration date without performing adjustment, refer to the instructions in the
section.
The following procedures describe the sequence of operation required to adjust the
NI PXIe-4463.
AO Offset and Gain Adjustment
Complete the following procedure to adjust the offset and gain performance of the
NI PXIe-4463.
Note
Set the polymorphic selector to
4463
for all polymorphic VIs used in the
Offset and Gain Adjustment procedure.
1.
Connect channel AO 0 of the NI PXIe-4463 to the DMM using the cables recommended in
Table 1.
2.
Configure the DMM using the parameters in Table 25.
3.
Call
DAQmx Initialize External Calibration
(DAQmxInitExtCal) with the
following parameters:
deviceName:
Dev_name
password:
NI
(default)
Use the
calhandle out
from this function to reference the current session.
Table 25.
DMM Configuration
Parameter
Value
Function
DC volts (DCV)
Autorange
ON
Number of Power Line Cycles (NPLC)
100
