WIKA

OLS-C29 Level Switch

The WIKA OLS-C29 optoelectronic level switches are used for the detection of limit levels in liquids. This is widely independent of physical characteristics such as refractive index, colour, density, dielectric constant and conductivity. Measurement is also done in small volumes.The switches include an infrared LED and a phototransistor. The light of the LED is directed…

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The WIKA OLS-C29 optoelectronic level switches are used for the detection of limit levels in liquids. This is widely independent of physical characteristics such as refractive index, colour, density, dielectric constant and conductivity. Measurement is also done in small volumes.

The switches include an infrared LED and a phototransistor. The light of the LED is directed into a prism. So long as the sensor tip of the prism is in the gas phase,  the light is reflected within the prism to the receptor. When the liquid in the vessel rises and wets approximately 2/3 of the glass tip, the infrared light beam into the liquid is interrupted, and only a small portion reaches the receptor.

The switching status of the OLS-C29 can be read directly from the sensor.

The electronics can be exchanged without opening the vessel, while the glass prism remains within the vessel.

Datasheet WIKA OLS-C29 Level Switch DS_LM3103_GB_60473.pdf

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