PCI-1720 & 1720U User Manual
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Appendix A Calibration
A.1 Overview
PCI-1720 cards are calibrated at the factory for initial use. However, a
recalibration of the analog analog outputs is recommended:
1. Every six months.
2. Everytime the analog output range is changed.
We provide a calibration program on the companion CD-ROM. The cali-
bration programs make calibration easier. With a variety of prompts and
graphic displays, these programs will lead you through the calibration and
setup procedures, showing you all the correct settings and adjustments.
Note: If you installed the program to another directory, you can find these
programs in the corresponding subfolders in your destination directory.
To perform a satisfactory calibration, you will need a 4½-digit digital
multi-meter and a voltage calibrator or a stable, noise-free DC voltage
source.
Note
Before you calibrate the D/A function, you must
turn on the power at least 15 minutes to make
sure the DA&C card is already stable.
