background image

6

|

ni.com

|

NI 9269 Calibration Procedure

EEPROM Update

When an adjustment procedure is completed, the NI 9269 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 

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 9269 installed in slot 8 of an NI cDAQ-9178 chassis

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

Table 6.  

NI 9269

 

Accuracy Under Calibration Conditions

Note

For operational specifications, refer to the most recent 

NI 9269 Operating 

Instructions and Specifications

 online at 

ni.com/manuals

.

Gain Error

Offset Error

0.060%

0.015%

*

 Range equals 10.47 V

Summary of Contents for 9269

Page 1: ...rification 3 Accuracy Verification 3 Adjustment 5 Accuracy Adjustment 5 EEPROM Update 6 Reverification 6 Accuracy Under Calibration Conditions 6 Where to Go for Support 7 Software Calibrating the NI 9269 requires the installation of NI DAQmx 9 6 or later on the calibration system You can download NI DAQmx from ni com downloads NI DAQmx supports LabVIEW LabWindows CVI ANSI C and NET When you instal...

Page 2: ... Operating Instructions and Specifications NI 9269 specific 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 about NI DAQmx VIs and functions NI DAQmx C Reference Help Reference information for NI DAQmx C functions and NI DAQmx C properties NI DAQmx N...

Page 3: ...ting temperature Initial Setup Complete the following steps to set up the NI 9269 1 Install NI DAQmx 2 Make sure that the NI cDAQ 9178 power source is not connected 3 Insert the module into slot 8 of the NI cDAQ 9178 chassis Leave slots 1 through 7 of the NI cDAQ 9178 chassis empty 4 Connect the NI cDAQ 9178 chassis to your host computer 5 Connect the power source to the NI cDAQ 9178 chassis 6 Lau...

Page 4: ...ount of time for the DMM measurement to settle e Read the NI 9269 output voltage measurement from the DMM f Clear the task 5 Compare the DMM measurement to the test limits in Table 4 6 Repeat steps 3 through 5 for each test point in Table 4 7 Disconnect the DMM from the NI 9269 8 Repeat steps 1 through 7 for each channel on the NI 9269 Table 2 NI 9269 AO Voltage Channel Configuration Input Range S...

Page 5: ...DC voltage in the minimum range required to cover the NI 9269 output range of 10 V f Call and configure the NI 9269 setup calibration function with the DAC value obtained from the array of recommended calibration voltages g Wait the appropriate amount of time for the DMM measurement to settle h Read the NI 9269 output voltage measurement from the DMM i Call and configure the NI 9269 adjustment fun...

Page 6: ...tment 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 condit...

Page 7: ...e 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 At ni com support you have access to everything from troubleshooting and application development self help resources to email and phone assistance from NI Application Engineers National Instruments corp...

Reviews: