1.15.4.2 Range check

Taking into account the lowest and highest driveable altitude, the pressure must lie within a valid range under all conditions. If the measured value from the atmospheric pressure sensor lies below the valid minimum pressure for a calibrated period of time, a minimum fault PUR will be set. If the measured value from the atmospheric pressure sensor exceeds the valid maximum pressure for a calibrated period of time, a maximum fault PUR will be set.