FCI Aerospace introduces Model AS—LLE Liquid Point Level Sensor

  • May 19, 2020
  • FCI - Fluid Components International
FCI Aerospace introduces Model AS—LLE Liquid Point Level Sensor
FCI Aerospace introduces Model AS—LLE Liquid Point Level Sensor

May 19, 2020 — With its precision thermal sensing capabilities, the Model AS—LLE Liquid Point Level Sensor from FCI Aerospace offers aircraft design engineers a solution to detecting and alarming liquid level for tanks, reservoirs, sumps and gearboxes in commercial and military fixed wing and rotary aircraft.

The AS-LLE Point Level Sensor can be used with most any liquid, including water, oil, hydraulic fluid, coolants, and more.  Its titanium (Ti 6AL-4V, per AMS 4928) construction ensures it is rugged, lightweight, and corrosion resistant to meet the most demanding aerospace fluid measurement application environments.

Unlike ordinary level sensors that are installed through a tap point in a vessel and protrude both into and out from the vessel, the breakthrough Model AS-LLE Liquid Point Level Sensor is designed to be installed within the vessel itself.  There are no external penetration points to leak or that require additional external space to accommodate their installation. 

With a no-moving parts thermal sensing technology design, the Model AS-LLE sensor has no moving parts to clog, jam or break.  It operates based on an excitation current of 75mA. (ON for 30 seconds, OFF for 120 seconds), which delivers an output signal that corresponds to tank or reservoir level. 

The tiny, but mighty, Model AS-LLE sensor’s body is designed to fit and go anywhere with a barrel-shaped body that’s only 1.36 inches (34.54 mm) in length with a 0.625 inch (15.87 mm) diameter.  The trim and svelte Model AS-LLE sensor weighs a mere 1.6 oz (45 g), making it ideal for both size-constricted and weight-restricted aerospace design environments

The process connection built into the easy-to-install Model AS-LLE sensor features an integrated extension panel with a 0.219-inch (5.6 mm) hole for attachment to the in-tank mounting bracket.  The sensor is potted to protect the electronics, which feature flying leads for connection. 
Designed for aerospace temperature and pressure operating environments, the Model AS-LLE sensor operates over a temperature range of -67° to 400°F (-55° to 205°C).  It meets high-pressure requirements too, operating at up to 3000 psig (207 bar [(g)]; proof to 6000 psig (414 bar [g]).

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