M9/M11 Sterilizer Heat-Up Mode Theory of Operation
To prevent risk of shock always disconnect power before removing covers or performing any service procedure.
Some procedures require power to be connected with covers removed. Line voltage is present. Use extreme caution to prevent electric shock.
The illustrations call out the components that are energized / monitored during the Heat-Up Mode. Refer to the dropdowns for detailed descriptions of the Heat-Up Mode.
Model Range -020 thru -022, -033, -034
|
Model |
M9/9D -020 thru -022, -033, -034 |
M11/11D -020 thru -022, -033, -034 |
| Serial Number | All | All |
During the Heat-Up Mode, the water in the chamber is heated to achieve the proper temperature for sterilization.
All electrical current is supplied thru the two high-limit thermostats on bottom of chamber. Refer to: Power Up Mode for further detail.
Display Panel
During the Heat-Up Mode, the display panel will show:
Heating Element
Throughout the Heat-Up Mode, line voltage is continually supplied to the heating element. The heating element heats the water in the chamber until sterilzation temperature is achieved.
Vent Valve
Throughout the Heat-Up Mode, voltage is supplied to the normally open vent valve. When energized, the vent valve closes. This prevents water from flowing back into the reservoir thru the vent valve.
Air Valve
Periodically during the Heat-Up Mode, line voltage is supplied to the normally closed air valve. When energized, the air valve opens. This occurs three times during this mode to expel air from the chamber.
Temperature Sensor and Pressure Sensor
The temperature sensor inside chamber and pressure sensor on Main PC Board monitor the temperature and pressure conditions inside the chamber.
When the preset sterilization conditions are met, the Heat-Up Mode is complete and the unit goes into the Sterilization Mode.
Model Range -040 thru -043
|
Model |
M9 -040 thru -043 | M9D -042 | M11 -040 thru -043 |
| Serial Number | All | All | All |
During the Heat-Up Mode, the water in the chamber is heated to achieve the proper temperature for sterilization.
All electrical current is supplied thru the two high-limit thermostats on bottom of chamber. Refer to: Power Up Mode for further detail.
Heating Element
Throughout the Heat-Up Mode, line voltage is continually supplied to the heating element. The heating element heats the water in the chamber until sterilization temperature and pressure conditions are achieved.
Vent Valve
Throughout the Heat-Up Mode, voltage is supplied to the normally open vent valve. When energized, the vent valve closes. This prevents water from flowing back into the reservoir thru the vent valve.
Air Valve
Periodically during the Heat-Up Mode, line voltage is supplied to the normally closed air valve. When energized, the air valve opens. This occurs three times during Unwrapped, Pouches, and Packs cycles. Four times during the Handpieces cycle to expel air from the chamber.
Temperature Sensor and Pressure Sensor
The temperature sensor inside chamber and pressure sensor on Main PC Board monitor the temperature and pressure conditions inside the chamber.
When the preset sterilization conditions are met, the Heat-Up Mode is complete and the unit goes into the Sterilization Mode.
