The AD8/AD9 series are based on a special pulsed ultrasonic technology which permits highly accurate and repeatable detection with excellent electrical noise immunity. This non-invasive design, with no contact between the sensor and the fluid, eliminates all media compatibility and sterility issues. Detection can be carried out in a large variety of soft or rigid tubing with diameters from 1.6 mm to 25.4 mm. These sensors are very compact and feature an integral programmable micro-controller to allow for custom sensor functionality or specific algorithms. This enables the AD8/AD9 standard sensor to be optimised to meet application specific requirements.

Important features of the AD8/AD9 series are:

• Non-invasive air bubble and 'end of sample' detection
• Highly accurate and repeatable pulsed ultrasonic technology
• Detection in tubing with diameters from 1.6 mm to 25.4 mm
• Customisation to application specific requirements

Typical applications can be found in many patient-connected medical devices such as transfusion systems, blood processing equipment, dialysis machines and infusion pumps. Further, air bubble and air-in-line detectors can also be utilised in chromatographs, analytical instruments and dispensing or liquid filling machines.

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