FCI - Model AS-FS -Dual Output Flow Sensor
FCI’s AS-FS Dual Output flow sensor provides fully redundant and separate outputs in the same outline dimension envelope of single sensor output designs. This is achieved by employing two electrically independent sensor heads and circuit boards; the second output assures continued operation in spite of a failure of one of the two redundant channels, thereby reducing the probability of an erroneous low flow or dry signal caused by a single sensor failure.
- Liquid Cooling Systems
- Fuel Transfer
- Fuel Tank Inerting Systems
- Lubricating Oils
- PACK Air Systems
- Hydraulic Fluids
- Bleed Air Systems
- Ground and in-flight refueling
Service: Flow monitoring of liquid or gas.
Material: Wetted parts 316 stainless steel, all welded construction
Electronics Enclosure: Hermetically sealed units; 316 stainless steel
Electrical Connection: D38999 or compatible
Process Connection: Flanged with O-ring seal
Insertion Length: Per customer requirement
Output Options
Sourcing
- Flow Signal: Source 240 mA at 28 Vdc
- No Flow Signal: Source 0 Vdc
- Flow Signal: Source 0 Vdc
- No Flow Signal: Source 240 mA at 28 Vdc
Open Collector
- Flow Signal: Closed, sinking up to 100 mA at < 0.5 Vdc
- No Flow Signal: Open, leakage < 10µa at 30 Vdc
- Flow Signal: Open, leakage < 10µa at 30 Vdc
- No Flow Signal: Closed, sinking up to 100 mA at < 0.5 Vdc
Electrical Power Input: 28 VDC nominal per MIL-STD-704
Power Consumption: 3 watt maximum
Weight: 8 oz. [227 g] maximum
Operating Pressure: Standard up to 2000 psig [138 bar (g)]; higher pressures available by request, contact FCI
Switch Point Adjustment
Factory set at customer specified switch point within flow range listed:
Flow Range
Operating Temperature Range
Flow Element: - 65 °F to 500 °F [- 54 °C to 260 °C] Specify actual requirement
Electronics: - 40 °F to 257 °F [- 40°C to 125 °C]
Repeatability: ± 2% of full signal range
Time Response: 1 to 10 seconds typical, depending on fluid type and switch point
EMI and Lightning Protection: MIL-STD-461 and RTCA/DO-160
Qualifications: MIL-STD-810 and RTCA/DO-160
Quality Systems Approval: ISO 9001, AS9100