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Table 5.

 NI 9252 Adjustment Configuration

Physical Channel

Reference Value

 

 

cDAQ1Mod8/AI0:7

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.

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 9252 from the calibrator.

EEPROM Update

When an adjustment procedure is completed, the NI 9252 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.
The following accuracy table is valid for calibration under the following conditions:

Ambient temperature 23 °C ± 5 °C

NI 9252 installed in slot 8 of an NI cDAQ-9178 chassis

Slots 1 through 7 of the NI cDAQ-9178 chassis are empty

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NI 9252 Calibration Procedure

Summary of Contents for NI-9252

Page 1: ...NI 9252...

Page 2: ...ication 6 Accuracy under Calibration Conditions 6 Worldwide Support and Services 7 Software Calibrating the NI 9252 requires the installation of NI DAQmx 19 1 or later on the calibration system You ca...

Page 3: ...rt for Visual Studio Reference information for NI DAQmx NET methods and NI DAQmx NET properties key concepts and a C enum to NET enum mapping table Test Equipment The following table lists the equipme...

Page 4: ...8 chassis to the system safety ground a Attach a ring lug to a 14 AWG 1 6 mm wire b Connect the ring lug to the ground terminal on the side of the NI cDAQ 9178 using the ground screw c Attach the othe...

Page 5: ...ble 2 NI 9252 AI Voltage Task Physical Channels Range Terminal Configuration cDAQMod8 AI0 7 10 5 V Differential b Configure the AI voltage channel timing according to the following NI 9252 Task Timing...

Page 6: ...equired to adjust the NI 9252 Accuracy Adjustment Complete the following procedure to adjust the accuracy performance of the NI 9252 1 Set the calibrator to Standby mode STBY 2 Connect the NI 9252 to...

Page 7: ...calibration temperature without making any adjustments by initializing an external calibration setting the C Series calibration temperature and closing the external calibration Reverification Repeat...

Page 8: ...i com services for information about the services NI offers Visit ni com register to register your NI product Product registration facilitates technical support and ensures that you receive important...

Page 9: ...ents EULAs and third party legal notices in the readme file for your NI product Refer to the Export Compliance Information at ni com legal export compliance for the NI global trade compliance policy a...

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