Optoelectronic level switch IMB Industrielle Messtechnik

Limit Switch for detecting the level of liquid media
Application area: Refrigeration
OPG 04
Characteristics:
Compact construction Long service life
No moving parts Measuring accuracy ± 0,5 mm
Reasonable prices Simple to install
Electrical connection: cable connection or plug
Optical switch condition check via the LED
Mounting direction: any Output PNP
High reliability Pressure 4 MPa, optional also higher pressure
Adjustable sensitivity for any application Glass fused in the steel body (without sealing)

Operating Principle:
The electro-optic sensor contains an infrared LED and a light receiver. Light from the LED is directed into a prism which forms the tip of the sensor. With no liquid present, light from the LED is reflected within the prism to the receiver. When rising liquid immerses the prism, the light is refracted out into the liquid, leaving little or no light reach the receiver. Sensing this change, the receiver actuates electronic switching within the unit to operate an external alarm or control circuit.
Areas of Application:
The opto electronic level switches OPG04 are used for monitoring the level of liquids. Applications include plants in the refrigeration.