Float switches in both horizontal and vertical configurations, ultrasonic sensors, and optical sensors can all perform the role of point level monitoring for a range of liquids. Integrating these with additional output connections will communicate point measurements to control or alarm systems.
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The primary component of an optical level sensor is a hard-wearing polymer or glass tip that houses an infrared (IR) light source and an optical detector. When the tip is in air, the IR light reflects off the inside of the sensor tip and is reflected into the optical detector. Conversely, when submerged in liquid, this IR light refracts out of the tip and the optical signal is reduced. |
PST offers a wide selection of optical sensors that can reliably function as point level switches to help prevent flooding or run-dry conditions. The Optomax range of optical sensors are our broadest range, which offer small and compact designs that are able to detect the smallest amounts of fluid in a tank or vessel. These solid-state devices offer long service in applications as varied as flood prevention and industrial monitoring. They are also unaffected by adverse process conditions or ambient light, offering the most precise point level monitoring possible.
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