PXIe-4466/4467 Calibration Procedure
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4. Call DAQmxAdjust4466Cal (DAQmx Adjust 4466 Calibration VI from the
DAQmx Adjust DSA AI Calibration Polymorphic AI), using the following
parameters:
calHandle: myCalHandle
referenceVoltage: 6.3
Timebase Adjustment
Perform an adjustment at least once within the calibration interval. Adjustment
automatically updates the calibration constants, the date, and the temperature
in the DUT EEPROM. If the DUT passes the verification procedures within the As-
Left test limits, an adjustment is not required. Proceed to the Update the
Onboard Calibration Information section.
Note
Initial test connection is same as Timebase Frequency Verification, as
shown in Figure 5.
Adjustment Procedure
1. Connect channel AI0 to the function generator as shown in Figure 5.
2. Configure the function generator to output a sine wave of 6.3 V
rms
(8.9 V
pk
)
signal, no offset, at a frequency of 90.000 kHz.
3. Call DAQmxAdjustDSADeviceTimebaseCal (DAQmx Adjust DSA Device
Timebase Calibration VI) with the following parameters to perform the
timebase adjustment:
calHandle: myCalHandle
referenceFrequency: 90000.0
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