Ultrasound Controller : D72 & DP72
Can Detect : Bubbles, Presence of Liquid, Liquid level
Ultrasound Controller uses ultrasound to make measurements. Ultrasound Controller D72 or DP72 can control up to two Air Sensors or four Level Switches or two Level Sensors. It can detect bubbles in flowing liquid or it can detect presence of liquid behind a container wall or it can measure continuous liquid level. It is easy to program and calibrate and is used by biochemical industries with high demands on reliability and aseptic design.
The Ultrasound Controller has three different modes of operation:
- Air Sensor mode: The Air Sensor monitors the presence of gas or particles in flowing liquid. The Air Sensor is very reliable and easy to use. Two Air Sensors can be connected to one Ultrasound Controller.
- Level Switch mode: The Level Switch is a small sensor which attached to the outside of the container can sense the presence of liquid inside the container without making hole in the container. Four Level Switches can be connected to one Ultrasound Controller.
- Level Sensor mode: Continuous liquid level is measured with a Level Switch attached under the container bottom (no hole in the container). High accuracy is achieved with a second Level Switch measuring liquid sound velocity. Two levels can be measured with one Ultrasound Controller.
**Ultrasound Controller DP72 is the same as D72 but instead of 4-20mA it has Profibus. It replaces the AS-P, AS/S-P, LS-P and AU100.






