Using The Calibration Function - National Instruments PCI-1200 User Manual

Dac multifunctional i/o device for pci bus computers

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Using the Calibration Function

The

Calibrate_1200

the calibration DACs with the factory constants or the user-defined

constants stored in the EEPROM, or you can perform your own calibration

and directly load these constants into the calibration DACs. To use the

function or the 1200 Calibrate VI for AI calibration,

Calibrate_1200

ground an AI channel at the I/O connector for offset calibration and apply

an accurate voltage reference to another input channel for gain calibration.

You should first configure the ADC for RSE mode, then for the correct

polarity at which you want to perform data acquisition.

To use the

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calibration, the DAC0 and DAC1 outputs must be wrapped back and

applied to two other AI channels. You should first configure the AI

circuitry for RSE and for bipolar polarity, then configure the AO circuitry

for the polarity at which you want to perform output waveform generation.

Refer to your software documentation for more details on the

function and the 1200 Calibrate VI.

Calibrate_1200

function and the 1200 Calibrate VI can either load

function or the 1200 Calibrate VI for AO

5-3

Chapter 5

Calibration

NI PCI-1200 User Manual

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