Calibration - National Instruments DAQArb 5411 User Manual

High-speed arbitrary waveform generator

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Chapter 4

Arb Operation

Note:

Calibration

DAQArb 5411 User Manual

The SYNC output generated on the DAQArb 5411 can be routed to

other boards through any of the RTSI bus trigger lines.You can use this

signal to provide other boards with an accurate and fine frequency

resolution clock.

Refer to your software manual for selecting and routing signals to the

RTSI bus.

Calibration is the process of minimizing measurement errors by making

small circuit adjustments. On the DAQArb 5411, NI-DAQ

automatically makes these adjustments by retrieving predetermined

constants from the onboard EEPROM, calculating correction values,

and writing those values to the CalDACs.

All DAQArb 5411 devices are factory calibrated to the levels indicated

in Appendix A, Specifications. Factory calibration involves procedures

such as nulling the offset and gain errors, all at room temperature

(25

C). The calibration constants are stored in a write-protected area in

the EEPROM. Factory calibration may not be sufficient for some

applications where different environmental conditions and aging could

induce inaccuracy. Contact National Instruments to recalibrate your

DAQArb 5411.

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