Eeprom Update; Reverification; Accuracy Under Calibration Conditions - National Instruments C Series Calibration Procedure

c) Call the NI 9202 get C Series adjustment points function to obtain an array of
recommended calibration voltages for the NI 9202.
d) Set the calibrator to a reference value determined by the array of recommended
calibration voltages.
e) Set the calibrator to Operate mode (OPR).
f) Call and configure the NI 9202 adjustment function according to NI 9202
Adjustment Configuration table.
Physical Channel
cDAQ1Mod8/AI0:15
g) Set the calibrator to Standby mode (STBY).
h) Repeat steps d through g for each point in the array.
i) Close the calibration session.
j) Clear the task.
4. Disconnect the NI 9202 from the calibrator.

EEPROM Update

When an adjustment procedure is completed, the NI 9202 internal calibration memory
(EEPROM) is immediately updated.
If you do not want to perform an adjustment, you can update the calibration date and onboard
calibration temperature without making any adjustments by initializing an external calibration,
setting the C Series calibration temperature, and closing the external calibration.

Reverification

Repeat the Verification section to determine the As-Left status of the device.
Note If any test fails Reverification after performing an adjustment, verify that you
have met the Test Conditions before returning your device to NI. Refer to the
Worldwide Support and Services section for assistance in returning the device to NI.

Accuracy under Calibration Conditions

The values in the following table are based on calibrated scaling coefficients, which are stored
in the onboard EEPROM.
6 | ni.com | NI 9202 Calibration Procedure
Table 5. NI 9202 Adjustment Configuration
The actual value of the voltage output of the calibrator
Note The module acquisition is started each time the adjust function is
called. There is a delay of approximately 550 µs from the acquisition start
until module data becomes available.
Reference Value