A gas delivery system, comprising: a gas delivery subsystem configured to delivery therapeutic gas from a therapeutic gas source; a system controller including a processor in communication with a memory; the memory having stored thereon a calibration schedule; at least one sensor configured to measure the therapeutic gas; wherein the system controller is configured to cause the sensor to be calibrated according to the calibration schedule that dictates when a calibration is required depending on the absolute change in concentration of the therapeutic gas.
Systems and methods for compensating long term sensitivity drift of electrochemical gas sensors exposed to nitric oxide