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Alarm Watchdog Controller Design
Main Functions
- Emergency shut-off for critical failures
- Alarm notification (buzzer, display)
- Alarm override
- O2 Alarm <- O2 Sensor
- Flow Alarm <- Flow Sensor
- Pressure Alarm <- Pressure Transducer
- Temp. Alarm <- Temperature Sensor
- Low Battery Alarm <- Power Controller
- Battery Over-temp Alarm <- Batt. Temp Sensor
- Mains Power Loss Alarm <- Power Controller
- Alarm Override <- Input Panel
Output Pins
- O2 Alarm -> Display
- Flow Alarm -> Display
- Pressure Alarm -> Display
- Temp. Alarm -> Display
- Low Battery Alarm -> Display
- Battery Over-temp Alarm -> Display
- Mains Power Loss Alarm -> Display
- Buzzer
Critical Features
- Separate battery circuitry