(This item pertains to the Probe Utilities dialog box, accessible through Insert | Hardware Definition | Probe.)
The Use Unit Calib Data check box only appears on the dialog box if you have already performed a unit calibration. If this check box is not selected, PC-DMIS uses the standard calibration. Selecting this check box allows you to use the unit calibration data. See "Calibrate the Unit" in the "Calibrating Probe Tips" topic for additional information.