Honeywell BW MaxXT II User Manual page 48

Calibration Interval
Define how often a sensor must be calibrated in the Calibration Interval (days) field. A
different calibration interval can be set for each sensor. The detector is shipped with the
factory default set to 180 days.
1. Enter the value (0-365 days) for each sensor.
2. Enter 0 to disable the calibration interval option. Entering 0 automatically deactivates
the Force Calibration user option.
BW MaxXT II 47 User Manual