2. Introduction
Ultrasound Controller
Ultrasound Controller uses ultrasound to make measurements of liquids. 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. The Ultrasound Controller has four 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.
Gel Distance Sensor mode: Continuous gel distance is measured with a Gel Distance Sensor.
This mode is only available in GS72.
Gel Sensor mode: Gel Sensor GF90 installed inside or Level Switches attached outside the
container can sense the presence of gel in the container. Four gel sensors can be
connected to one Ultrasound Controller.
The software version of the Ultrasound Controller is shown briefly on the display when power is
switched on. The software version can also be found in the HELP-menu. Software versions may
differ slightly and therefore it is usually better to use a manual version corresponding to the
software version, even though a later manual version can have less errors.
Installing Ultrasound Controller D72, G72
The Ultrasound Controller should be protected from dust and
water. It is made to be attached to a DIN-rail, to which it
snaps easily and can be removed by pushing up and bending
the top out. Usually it is installed in an electric cabinet. The
connector terminals can be removed by pulling the connector
straight out. Connections for terminal 1-7 and D-sub, see
table. Connections for terminal 8-17 depend on the selected
mode, see table in the corresponding chapter.
The Ultrasound Controller should be installed in accordance
with national regulations. A person with
the required knowledge should
perform the installation.
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