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Service Checkout
Service mode Calibrations :
• O2 Calibration
• Zero Flow and Airway Sensors
• Adjust Drive Gas Regulator
• Airway Sensor Span
• PEEP Valve Calibration
• Inspiratory Valve Calibration
• Pressure Sensitivity
Powerup tests
• Sequential watchdog
• Logical watchdog
• Data RAM walking pattern test
• FLASH ROM CRC verification
• PEEP Valve test
• PEEP Safety Valve test
Continuous tests
These tests are run continuously during normal operation and alarms are associated with each test.
• Supply voltage checks
• Battery voltage checks
Periodic tests
These tests are run every 30 seconds during normal operation.
• CPU Test
• Display RAM walking pattern test
• Data RAM walking pattern test
• FLASH ROM CRC verification
• Inspiratory control valve DAC and voltage feedback
• PEEP control valve DAC and voltage feedback