Sensor specialist Baumer, which is based in the canton of Thurgau, has developed a new capacitive measuring device. According to a press release, the PL240 sensor can record fill levels even under challenging conditions. In particular, the capacitive sensor can detect fill levels of liquids and other media that have a tendency to form residues or films on tank walls.
The technology developed by Baumer enables the sensors to measure fill levels even through plastic or glass walls. They are therefore particularly suitable for measurements in closed systems where direct contact with the material being measured should be avoided, for example in the case of sensitive or aggressive lab liquids or in the food industry.
According to Baumer, conventional sensors record measuring errors as a result of film-forming, which can then lead to incorrect fill levels being reported and machines running dry. These conventional sensors react sensitively to the slightest changes: just a touch of the tank may result in switching errors. In contrast, the compact point level sensor measures from outside the tank, through walls with a thickness of up to 6 mm.
The PL240 can be used for applications such as lab automation, equipment engineering and semiconductor production. Baumer says it is very easy to install and does not require instructions.
