"
WARNING
The Calibration Cap must be removed from the XIR environmental
guard after completing the Zeroing and/or Spanning procedure;
otherwise, the sensor cannot perform properly.
Calibration Documentation
The Ultima X Series Monitor records the date of the last
successful calibration. This date can then be displayed on the
front-panel LCD (with the use of the Controller).
Chapter 2, Start-up and Calibration
2-12