ADU Series Sensor and Air Bubble Detector
INTROTEK® ADU Series Sensor is a solution for non-standard, soft tube sizes between 1 ⁄ 8“ and 3 ⁄ 8“ where standard AD9 Air Bubble Detector housings are not available. The ADU can eliminate tooling costs for low volume requirements for some odd-sized tubes. Our ADU incorporates many of the features of the AD9 including the latest generation “MEC” pulse-type ultrasonic circuitry. The micro-controller based circuitry is located integrally in the sensor assembly. Custom algorithms to control functionality, such as response times, time delays and more can be designed at Introtek based on customer requirements.

Product Details
ADU Series: A Game-Changer for Air Bubble Detection in Non-Standard Soft Tubes
For applications involving air bubble detection in non-standard, soft tubes, traditional solutions often fall short. Standard air bubble detector housings, like the AD9, may not be compatible with these odd-sized tubes, leading to potential challenges and requiring custom tooling for low-volume production runs.
The innovative Introtek® ADU Series Sensor solves this problem by offering a cost-effective and reliable solution specifically designed for non-standard soft tubes ranging from 1/8" to 3/8" in diameter.
Key Advantages of the Introtek® ADU Series:
The ADU Series boasts several key features that make it a compelling choice for air bubble detection in non-standard soft tubes:
Cost-Effective Solution for Low-Volume Needs: The ADU Series eliminates the need for custom tooling, a significant expense often associated with low-volume production runs involving odd-sized tubes. This translates to substantial cost savings for businesses with specific requirements.
Proven Ultrasonic Technology: The ADU Series leverages the latest generation "MEC" pulse-type ultrasonic circuitry, the same reliable technology trusted in the successful AD9 Air Bubble Detector. This ensures accurate and dependable air bubble detection in your processes.
Integrated Microelectronics Controller (MEC): The ADU Series integrates a micro-controller based circuitry directly within the sensor assembly. This strategic placement optimizes performance and simplifies installation.
Customizable Functionality: Introtek understands that different applications require unique parameters. The ADU Series offers the advantage of customizable control algorithms based on your specific needs. This allows for adjustments to response times, time delays, and other functionalities to ensure optimal performance in your specific application.
A Reliable Partner for Your Air Bubble Detection Needs:
The Introtek® ADU Series is a powerful solution for those seeking a safe, reliable and cost-effective method for air bubble detection in non-standard soft tubes.
Operating Principle
Introtek’s pulse-type ultrasonic technology provides highly reliable, non-invasive air 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 systems, are eliminated or greatly reduced, thus yielding accurate and repeatable detection.
What Makes the INTROTEK® ADU Series Sensor Unique?
Features
- Adjusted at the factory for optimum tube fit
- Can eliminate tooling costs for low volume requirements.
- Compact design features integral MEC circuitry
- Reliable pulse-type, non-invasive ultrasonic technology
- Air detection threshold or sensitivity can be user specified
- Accommodates a wide range of tubing sizes
- Dry coupled; no coupling gel is required
- Accuracy is not affected by fluid or tubing color
Options
- Factory adjusted for odd tube sizes between 1/8 – 3/8
- Bi-color LED
- Reverse output logic
- Custom response times
- Dual redundant operation
What Makes the INTROTEK® ADU Series Sensor Unique?
Custom Design
- Adjusted at the factory for optimum tube fit.
- Eliminate tooling costs for low volume requirements.
Compact
- "MEC" Circuitry
- Non-invasive
Flexible
- Accommodates a wide range of tubing sizes.
Programmable
- Air detection threshold or sensitivity can be user specified.

