FOS03, Optoelectronic Level Switch

FOS03.S Standard version

Dimensions of standard version

FOS03.T High temperature und pressure version

Dimensions of high temperature und pressure version

Accessory fo FOS03: M8 connector plug SM08

PKP- Products, Level / Electronic Level Switches

FOS03 Optoelectronic Level Switch For Industrial Applications

for liquids
standard version and high temperature and high pressure version
small and compact, no moving parts
Easy installation, can be installed in any position
Visual indication of the switching status
switching direktion selectable
with cable or plug connection
process connection: G 1/2 AG, G 3/8 AG, M12x1 AG
material: stainless steel, borosilikate glass
max. pressure: 50 bar, max. temperature: 170 °C

For Further Information

More informations

The FOS03 optoelectronic level switches are used to monitor the level of liquids. The sensor contains an infrared LED and a light receiver. The light from the LED is directed into a prism that forms the tip of the sensor. As long as the tip is not immersed in liquid, the light is reflected within the prism to the receiver. If the liquid in the container rises and surrounds the tip, the light is refracted by the liquid and no longer or only weakly reaches the receiver, which reacts to this change and initiates a switching process. The switching status can be read directly on the sensor (LED, with high temperature variant only as an option).

Typical applications

The area of application for optoelectronic level indicators is the detection of limit values in a variety of liquids. The advantage here is that the measuring method is largely independent of physical variables such as refractive index, colour, density, dielectric constant or conductivity. The very compact design guarantees minimum space requirements, enabling measurement in very small volumes. The fact that it can be installed in any position and the high pressure and temperature ranges offer a wide range of applications.

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