AST-75D Oxygen Sensor – Replaces AII-11-75D Sensor

AST-75D-PO2 oxygen sensor is a galvanic micro fuel cell that replaces AII model AII-11-75D used in Trimix-4001 analyzer. It is designed for internal mounting within the analyzer. The sensor features a 3-PIN Molex connector and M16x1 threaded front end. It offers up to 60 months of life in air at ambient temperature and pressure.

The AST-75D Oxygen Sensor features an advanced design with a proprietary lead (Pb) anode structure. As a result, it delivers excellent stability and ensures full utilization of the anode. This design prevents significant signal drift and improves overall performance.

In addition, the super activated anode reduces the need for frequent calibration. Therefore, users benefit from extended sensor life and lower maintenance requirements. Due to the super activated anode, up to 80% of the anode is consumed before the sensor loses its output beyond a certain threshold. The expected life of this sensor in air at ambient temperature and pressure is 36 months.

Furthermore, the geometry of the anode plays a critical role in internal electrochemical reactions. Its optimized structure ensures consistent and reliable operation. As a result, the sensor maintains excellent linearity from air up to 1.6 atmospheres of oxygen. This makes it ideal for accurate oxygen monitoring in diving applications.

Finally, AST oxygen sensors are designed, developed, and manufactured in the USA, ensuring high quality and dependable performance.

AST-75D oxygen sensor is a galvanic micro fuel cell specifically designed for oxygen measurement. It replaces the AII Model AII-11-75D sensor used in Trimix-4001 analyzers. The sensor features a 3-PIN Molex connector and M16x1 threaded front end. It offers up to 60 months of life in air at ambient temperature and pressure.

The innovative design uses a proprietary Pb anode structure. This provides excellent stability and ensures full anode utilization without signal drift. As a result, the sensor does not require frequent calibration, reducing maintenance and extending operational life. The super activated anode allows its consumption of up to 80% before sensor’s output drops beyond a certain threshold, further enhancing longevity.