Principal of Function of ACE-Xmed®

The O₂/CO₂ module ACE-DXmed consists of the approved oxygen sensor ACE-Xmed^® and of an ultrasonic sensor to measure carbon dioxide. The oxygen concentration is detected electrochemically by a heated solid state electrolyte (zirconium) whereas the ultrasonic sensor determines the molar mass of the breath. On this basis the carbon dioxide concentration is calculated precisely and reliably. The integrated, electronically controlled and adjustable pump provides a constant exhaustion. Influences of pressure, temperature and humidity are eliminated reliably. The system is simply calibrated with ambient air.