Filtration Air FMA Series Restriction Sensor For improved air filtration system performance, the NovaSensor FMA Series of Filtration Air Restriction (FAR) Sensors accurately measures pressure loss across a variety of air filtration devices utilizing high accuracy NPA piezoresistive technology in a low-profile form factor that is easy to install and maintenance-free. With configurable thresholds, the FMA Series can be easily installed for use in a variety of applications, including commercial and automotive HVAC and industrial air filters, engine air filtration systems and rooftop units exposed to pressure or vacuum environments. With hydrophobic reference port and sealed connection system, it can also be used in a variety of harsh environmental conditions. The FMA Series is available in multiple positive or vacuum pressure ranges, mating with an integrated AMPSEAL 16 (3-way) electrical connector (Drawing No. C-776402-1-GEN) and a 1/8-27 NPT female pressure connection port. Applications Features Engine Air Filter Restriction Supply Voltage: 5VDC Cabin Pressure Linear Output: 0.5V to 4.5V (Ratiometric) HVAC Pressure Diagnostic Features (Bridge Connection Checks, Bridge Short Detection, Power Loss Detection) Exhaust Pressure Temperature-Compensated Industrial Filters Sealed AMP Electrical Connector Multiple Pressure Ranges Available (Vacuum and Pressure) Fast Response Time REACH & RoHS Compliant Amphenol Advanced SensorsTechnical Specifications Performance Electrical Accuracy +/- 2.5% FSO (1) Supply Voltage (VDD) 5 VDC +/-5% Resolution 0.12% FSO Supply Current 5 mA Max 0C to 80C Compensated Temp Range 0C to 60C for 5H O 2 Output Voltage (V ) O 0.5 to 4.5 V (10% to 90% VDD) Proof Pressure 2X Full Pressure (Ratiometric) Burst Pressure 3X Full Pressure Output Impedance 250 Ohms Max Vibration 20-2000Hz AT 11.5 Grms Operating Temp Range -40C to 125C Over Voltage 28 V Momentary Contact Storage Temp Range -55C to 150C Reverse Voltage 28 V Momentary Contact Start-Up Time 10 ms Response Time < 2 ms ESD Rating Contact: 8 kV Air: 15 kV Intended Media Clean Dry Air RE (150 kHz - 3.2 GHz) Clamp Limits Upper/Lower 92.5% to 7.5% VDD CI (30 Hz - 50 kHz) Diagnostic Limits Upper/Lower 97.5% to 2.5% VDD EMC Compliance BCI (10 kHz - 400 MHz) 5 H O 2 RI (100 kHz - 3.2 GHz) (2) 10 H O 2 Pressure Ranges Available 40 H O 2 (2) 1 PSI 5 PSI 1 Use 5 VDC +/- 2.5% for 5 H2O 2 Contact factory for additional custom pressure ranges. Connector Pin Out and Port Thread 2