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NI 9211 Calibration Procedure

EEPROM Update

When an adjustment procedure is completed, the NI 9211 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.

Re-Verification

Repeat the 

Verification

 section to determine the As-Left status of the device.

Note

If any test fails Re-Verification after performing an adjustment, verify that 

you have met the 

Test Conditions

 before returning your device to NI. Refer to 

Where 

to Go for Support

 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 9211 installed in slot 8 of an NI cDAQ-9178 chassis

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

Note

For operational specifications, refer to the most recent 

NI 9211 Operating 

Instructions/User Guide and Specifications

 online at 

ni.com/manuals

.

Table 6.  

NI 9211 Accuracy Under Calibration Conditions

Gain Error

Offset Error

370 ppm

13 

μ

V

Summary of Contents for 9211

Page 1: ...erification 3 Accuracy Verification 4 Adjustment 5 Accuracy Adjustment 5 EEPROM Update 6 Re Verification 6 Accuracy Under Calibration Conditions 6 Where to Go for Support 7 Software Calibrating the NI...

Page 2: ...c information specifications and calibration interval NI DAQmx Readme Operating system and application software support in NI DAQmx LabVIEW Help LabVIEW programming concepts and reference information...

Page 3: ...set up the NI 9211 1 Install NI DAQmx 2 Make sure the NI cDAQ 9178 power source is not connected 3 Connect the NI cDAQ 9178 to the system safety ground a Attach a ring lug to a 14 AWG 1 6 mm wire b C...

Page 4: ...and average samples a Create and configure an AI voltage channel according to Table 2 b Configure the AI voltage channel timing according to Table 3 c Start the task d Read samples from the NI 9211 e...

Page 5: ...of the NI 9211 1 Set the calibrator to Standby mode STBY 2 Connect the NI 9211 to the calibrator as shown in Figure 1 3 Set the calibrator output to 0 07 V 4 Set the calibrator to Operate mode OPR 5 A...

Page 6: ...adjustment verify that you have met the Test Conditions before returning your device to NI Refer to Where to Go for Support for assistance in returning the device to NI Accuracy Under Calibration Cond...

Page 7: ...de compliance policy and how to obtain relevant HTS codes ECCNs and other import export data Where to Go for Support The National Instruments Web site is your complete resource for technical support A...

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