Model AS-PS Pressure Switch
Brand: Fluid Components International LLC (FCI)FCI pressure elements use piezoresistive sensors (strain gage sensors) fabricated using silicon processing techniques common in the semiconductor industry.
Piezoresistive sensors are often referred to as IC sensors (integrated circuit), solid state sensors, monolithic sensors (formed from single crystal silicon) or just silicon sensors.
FCI elements consist of four strain sensitive resistors ion implanted into silicon wafers. These resistors are connected in a wheatstone bridge configuration. Two resistors increase in ohmic value as pressure increases while the other two decrease. When pressure is applied, the resistors in the arms of the bridge change by an amount R. Alignment of the resistors on the silicon determines which resistors increase and which decrease with pressure.
Features- No moving parts
- High reliability
- Wide range
- Simple installation
- Durable sensor solution
- Military standard connections
- Light weight, compact design
- Exceptional corrosion and abrasion resistance
- Multiple Switch points, up to 3
- Linear voltage output
- Available temperature option
Specifications
Accuracy
- Interchangeability: ± 1 % of Reading
Applications
- Aerospace & Military Applications
- Coolant Systems
- Environmental Control Systems (ECS)
- Fuel Systems
- Hydraulic Applications
- Lubrication Equipment
- Semiconductor Industry
Approvals & Certifications
- AS 9000
- Dissimilar Metal: MIL-STD-889
- EMI: MIL-STD-461/462
- Environmental Testing: MIL-STD-810
- ISO 9001
- Markings: MIL-STD-130
Burst Pressure
- psi: 0 to 2,400 (kPa: 0 to 16,550, bar: 0 to 165.5)
Electrical Connectors
- Military or Commercial Connector
- Pigtail with Cable
Humidity
- 100 % Relative Humidity
Input
- < 10 mA
- 28 Vdc
Materials of Construction
- All-Welded, 300 Series Stainless Steel
- Aluminum
- Titanium
Media
- Liquids & Gases
Operating Temperature
- -40° to 125° C (-40° to 257° F)
Output
- Close-Sink: 100 µA to 800 mA
- Open-Leakage: < 10 µA
Proof Pressure
- psig: 0 to 1,200 (kPa: 0 to 8,274, bar: 82.74)
Repeatability
- ± 0.1 % of Reading
Resistance
- Bonding: < 2.5 milliohms
Sensor, Probe Material
- Silicon
Sensor, Probe Type
- Piezoresistive Sensors (Strain Gage Sensors)
Set Point - Decreasing
- bar: 0 to 34.47
- kPa: 0 to 3,447
- psi: 0 to 500
Set Point - Increasing
- bar: 0 to 34.47
- kPa: 0 to 3,447
- psi: 0 to 500
Shock
- Thermal Shock: 10° cycles/min
Switch Points
- Three Switch Points
System Pressure
- bar: 0.689 to 165.5
- kPa: 68.95 to 16,547
- psi: 10 to 2,400
Temperature Range
- Survival Temperature: -80° to 200° C (-112° to 392° F)
Time Constant
- 0.5 second
Vibration
- Fixed Wing
- Rotary
Voltage
- D.R. Test Voltage: < 500 Vdc
- I.R. Test Voltage: < 1,000 Vdc
- Fuel syatems
- Hydraulics applications
- Environmental control system (ECS)
- Coolant Systems
- Aerospace & military applications
- Lubrication equipment
- Semiconductor industry