Detecting – Levels

Do you need to reliably detect levels in containers? To find the right solution for your needs, please ask yourself the following questions: What distance to the object do you need? Is the sensor allowed to contact the medium? How much installation space do you have available? What ambient conditions do you need to account for (elevated temperatures, moisture, oil, dirt, etc.)? This is how you select the right technology.

Application examples

Capacitive sensors reliably detect the level of granulate in a container. To accomplish this two sensors are attached in the container offset from each other. A signal is generated when the minimum or maximum level is exceeded. This prevents over-filling or falling of the level below a prescribed value, and reduces equipment downtime. Capacitive sensors are flexibly designed and simple to install.

Ultrasonic sensors detect the precise fill height of a tank without contact. They ensure that the filling process can run continuously. Ultrasonic sensors are also reliable over greater distances and require no additional component such as reflectors.

Sensor technologies

Various technologies can be used for detecting level depending on the application area:

• Capacitive sensors for detecting the presence or level of almost any material and liquid at close range (< 50 mm)

• Ultrasonic sensors for detecting virtually any object over greater distances (> 50 mm) using sound