SensorCaution OFF  Sensor Caution alarm turned off 
SensorCaution ON  Sensor Caution alarm turned on 
RTC Bad  Real-time clock has failed 
 
SensTstAlr Ack  Sensor fail alarm has been acknowledged 
SetupLost Ack  Setup lost alarm has been acknowledged 
SetupLost OFF  Setup lost alarm turned off 
Set-up Lost ON  Setup lost alarm turned on 
Soft WatchDog  Reset of Hydran M2-X induced by the software watchdog 
Sp Span chg  Modification of the sensor temperature set point’s range 
STempAlr Ack  Sensor temperature fail alarm has been acknowledged 
STempAlr H chg  Modification of the sensor temperature High alarm’s set 
point 
STempAlr H ON  Sensor temperature High alarm turned on 
STempAlr HH chg  Modification of the sensor temperature High-High alarm’s set 
point 
STempAlr HH ON  Sensor temperature High-High alarm turned on 
STempAlr L chg  Modification of the sensor temperature Low alarm’s set point 
STempAlr L ON  Sensor temperature Low alarm turned on 
STempAlr LL chg  Modification of the sensor temperature Low-Low alarm’s set 
point 
STempAlr LL ON  Sensor temperature Low-Low alarm turned on 
STempDelay chg  Modification of the sensor temperature alarm’s delay 
STemp H OFF  Sensor temperature High alarm turned off 
STemp HH OFF  Sensor temperature High-High alarm turned off 
STemp L OFF  Sensor temperature Low alarm turned off 
STemp LL OFF  Sensor temperature Low-Low alarm turned off 
STempSetP chg  Modification of the sensor temperature set point 
SystemCalib  Calibration of Hydran M2-X 
 
TDM Mode chg  Modification of the TDM signal’s operating mode 
Unit in Service  Hydran M2-X back in service after the battery was 
disconnected 
Watchdog  Reset of Hydran M2-X induced by the hardware watchdog