National Instruments Isolated Analog Input Device NI PXI-4224 User Manual
Page 70

Appendix D
Common Questions
D-2
ni.com
How do I perform an external calibration of the NI PXI-4224?
As of the NI PXI-4224 release, an external calibration document is not
available. To check the availability of an NI PXI-4224 external calibration
document is go to
ni.com/calibration
and click Manual Calibration
Procedures.