PAD - Point Air Detector
INTROTEK® Non- Invasive, PAD Point-Air Detection, delivers a reflective ultrasonic signal from a single contact point. The ultimate air detection sensor for a fluid-handling cassette application. The PAD Sensor incorporate the state-of-the-art, patented pulse-type ultrasonic circuitry. Integral to the sensor’s assembly, the Micro-Electronic Controller (MEC) features programmable algorithms for functionality control. Response times, time delays, and other functions are programmed in accordance to specific requirements.

Product Details
Introtek’s pulse-type ultrasonic technology provides highly reliable, non-invasive air bubble detection capabilities in the most critical applications where the safety of a patient or process is mandatory. Many of the variables, which can affect performance of amplitude or continuous wave based sensing air detector sensor systems, are eliminated or greatly reduced, thus yielding accurate and repeatable detection.
Applications
- Air bubble, Air-in-line and liquid level sensing
- Patient-connected medical devices, including:
• Apheresis
• Heart-lung bypass
• Auto-transfusion
• Dialysis
• Infusion pumps
• Cardiac assist pumps
• Perfusion-based “life support” devices - Chromatography and separations technology
- Immunoassay and diagnostic equipment
- Liquid and chemical dispensing
- Blood processing equipment
Features
- Compact design features of air detector sensor with integral MEC circuitry
- Programmable micro-controller expands the circuits functionality
- High EMI and RFI noise immunity
- Reliable pulse-type, non-invasive ultrasound
- Air detection threshold or bubble size can be set to our customer’s requirements
- Accommodates a wide range of disposable cassette assemblies that incorporate fluidic channels
- Dry coupled; no coupling gel is required
- Accuracy is not affected by fluid or tubing color
Options
- Reverse output logic
- Custom OEM designs
- Custom response times
- Dual redundant operations
Compact
- Compact design features integral MEC circuitry.
- Non-invasive.
Technology
- Programmable micro-controller expands the circuits functionality.
- Accommodates a wide range of disposable cassette assemblies that incorporate fluidic channels.
- Reliable pulse-type, non-invasive ultrasound.
Custom Design
- Custom OEM designs.
- Custom response times.
- Air detection threshold or bubble size can be set to our customer’s requirements.
Safe
- High noise immunity to EMI / RFI
- Highly reliable.

