1.15.4.1 Circuit continuity

The circuit continuity check compares the sensor signal voltage with an upper and lower limit to detect short or open circuits.

A maximum fault PUE indicating a short circuit to battery will be set when the voltage derived from the atmospheric pressure sensor exceeds an upper calibrated limit for a calibrated period of time. Likewise, a minimum fault PUE will be set when it lies below a calibrated minimum for a calibrated period of time.