Liquid Level and Interface Sensors


FCI’s proprietary thermal dispersion technology permits highly reliable detection of liquid level in the harshest aerospace and military applications with a no moving part element. With reported Mean Time Between Failure (MTBF) in excess of 100,000 hours, FCI’s Liquid Level Sensors are specified for the detection of level in hydraulic and gearbox oil, coolants, potable water applications, fuel and other fluids.
The typical liquid level and interface element is installed with a flanged or threaded process connection through the wall of the reservoir or gearbox, and it is equipped with an electrical connector or flying lead for interface with the FCI or customer’s electronics. As an alternative installation, FCI has provided liquid level and interface elements that may be internally mounted in the reservoir or sump with a flying electrical lead passing through a seal in the wall of the vessel to the remote mounted electronics outside. FCI’s technical staff can describe existing designs that meet many requirements, and they can provide recommendations for modified designs for application specific requirements. FCI provides sensors for temperature service to 800° F (427° C) and pressures to 5000 psig [345 bar(g)].
 

Level Series

  Model Type Application
AS-LLE Liquid Level Sensor Element Liquid Level Elements integrated to customer electronics.
AS-LLS Liquid Level Sensor Switch Liquid Level Element with solid state switch electronics.
AS-MLLS Liquid Level Sensor Multipoint Switch Liquid Level Element with solid state multipoint electronics.
AS-LLT Liquid Level Sensor Transmitter Liquid Level Element solid state transmitter electronics.


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