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Leading-Edge AS-FS dual output flow Sensor/Switch is fully redundant with separate outputs

The breakthrough dual output AS-FS Flow Switch from FCI Aerospace features a next-generation, zero maintenance design that is flight qualified and ideal for a wide range of liquid or air/gas measurement requirements in commercial and military mission-critical rotorcraft and fixed-wing aircraft applications.

FCI's Dual Output flow/level sensor provides fully redundant and separate outputs in the same envelope dimension. The dual output assures continued operation in spite of a single-channel failure, reducing the probability of an erroneous low flow or dry signal caused by a single sensor failure. Sensor failures may cause false warnings, resulting in unnecessary and costly mission aborts. Built-in redundancy helps prevent false positive indication of critical flow sensing in a single sensor, reducing weight and power consumption.

The AS-FS Dual Output Flow Switch/Sensor features a switch point range of 0.25 to 1000 SFPS (0.07 to 305 MPS) in air, and up to10 SFPS (3 MPS) in liquids. Repeatability is ±2% of full signal range. Response time is 1 to 10 seconds typical, depending on media conditions and switch point setting. 

Designed for demanding commercial and military operating conditions, the AS-FS Dual Output Flow Sensor/Switch functions over a wide operating temperature range and is temperature-compensated for accuracy in extreme temperature conditions. The flow element is specified for service from -65 to 500°F (-54 to 260°C). The electronics are suitable for service from -40 to 257°F (-40 to 125°C).

Built for rugged service and zero maintenance, life-of-acquisition costs are very low. The AS-FS Dual Output Flow Sensor/Switch features a no-moving parts design. The mean-time between failure (MTBF) rate is 100,000 hours of service for superior dependability.

The AS-FS electronics package features an all-welded, hermetically sealed enclosure. Power input is 19-32 Vdc per MIL-STD-704. Standard outputs include an open collector, (sink) or a filtered, buffered op-amp (source) (< 1VDC [low flow] or > 17 VDC [high flow]).

Electronic hysteresis functionality is included with the AS-FS Sensor/Switch to prevent undesired switching when flow rates are in the vicinity of the set point. Because the flow induced heat dissipation effect is a logarithm function, FCI mass flow switches can perform over a remarkably wide flow range with exceptional low-flow sensitivity.

The AS-FS meets a wide range of performance and reliability standards. It includes qualifications to MIL-STD-810 and RTCA/DO-160, EMI protection meeting MIL-STD-461 and RTCA/DO-160, and quality systems approval to ISO 9001 and AS9100.

FCI's world-class, fully NIST traceable flow calibration laboratories test and calibrate all FCI products to ensure instrument accuracy with the customers' actual fluid and process conditions. FCI's calibration laboratories are ISO9001:2008 certified and AS9100 compliant. The laboratories also meet MIL-STD-45662A and ANSI/NCSL-Z-540 requirements. The company's advanced technologies also include mechanical design, advanced materials, metallurgy, electronics, communications and more.

Press release issued by FCI Aerospace on November 30, 2015

 

 Contact details from our directory:
FCI Aerospace Liquid Level Switches, Fluid Flow Switches, Temperature Detectors, Pressure Detectors, Flow Meters, Sensors/Transducers, Liquid Level Sensors, Leak Detectors, Pressure Switches, Thermal Switches

 

 Related directory sectors:
Switches

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