Filtration Air
FMA Series
Restriction Sensor
Features
• Supply Voltage: 5VDC
• Linear Output: 0.5V to 4.5V (Ratiometric)
• Diagnostic Features (Bridge Connection Checks,
Bridge Short Detection, Power Loss Detection)
• Temperature-Compensated
• Sealed AMP Electrical Connector
• Multiple Pressure Ranges Available (Vacuum and
Pressure)
• Fast Response Time
• REACH & RoHS Compliant
Amphenol
Advanced Sensors
For improved air ltration system performance, the NovaSensor FMA Series of Filtration Air Restriction (FAR)
Sensors accurately measures pressure loss across a variety of air ltration devices utilizing high accuracy
NPA piezoresistive technology in a low-prole form factor that is easy to install and maintenance-free.
With congurable thresholds, the FMA Series can be easily installed for use in a variety of applications,
including commercial and automotive HVAC and industrial air lters, engine air ltration 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
• Engine Air Filter Restriction
• Cabin Pressure
• HVAC Pressure
• Exhaust Pressure
• Industrial Filters
2
Technical Specifications
Electrical
Supply Voltage (VDD) (1) 5 VDC +/-5%
Supply Current 5 mA Max
Output Voltage (VO)
(Ratiometric) 0.5 to 4.5 V (10% to 90% VDD)
Output Impedance 250 Ohms Max
Over Voltage 28 V Momentary Contact
Reverse Voltage 28 V Momentary Contact
ESD Rating Contact: 8 kV; Air: 15 kV
EMC Compliance
RE (150 kHz - 3.2 GHz)
CI (30 Hz - 50 kHz)
BCI (10 kHz - 400 MHz)
RI (100 kHz - 3.2 GHz)
Connector Pin Out and Port Thread
Performance
Accuracy +/- 2.5% FSO
Resolution 0.12% FSO
Compensated Temp Range 0°C to 80°C
0°C to 60°C for 5”H2O
Proof Pressure 2X Full Pressure
Burst Pressure 3X Full Pressure
Vibration 20-2000Hz AT 11.5 Grms
Operating Temp Range -40°C to 125°C
Storage Temp Range -55°C to 150°C
Start-Up Time 10 ms
Response Time < 2 ms
Intended Media Clean Dry Air
Clamp Limits Upper/Lower 92.5% to 7.5% VDD
Diagnostic Limits Upper/Lower 97.5% to 2.5% VDD
Pressure Ranges Available
5” H2O
10” H2O (2)
40” H2O
1 PSI (2)
5 PSI
[1] Use 5 VDC +/- 2.5% for 5” H2O
[2] Contact factory for additional custom pressure ranges.
3
Transfer Function
Parameter Unit Typical Output
Upper Clipping Limit VDD 92.5% 4.625 V
Lower Clipping Limit VDD 7.5% 0.375 V
Upper Diagnostic Level VDD 97.5% 4.875 V
Lower Diagnostic Level VDD 2.5% 0.125 V
Transfer Function Parameters
FSO
VDD: Power Supply Voltage
Vo: Sensor Output Voltage
Zero: Sensor Output Voltage at Zero-scale Pressure
FSO: Sensor Output Voltage at Full-scale Pressure
Zero
AAS-920-707E - 05/2019
www.amphenol-sensors.com
© 2019 Amphenol Corporation. All Rights Reserved. Specications are subject to change without notice.
Other company names and product names used in this document are the registered trademarks or
trademarks of their respective owners.
Amphenol
Advanced Sensors
FMA Code Description
500 Analog Amplied Output, 5.0 VDC Excitation, Calibrated
Code Description
T1 Pressure Port, 1/8-27 NPT Female
Code Description
05W 5 in H2O (1.25 kPa)
10W 10 in H2O (2.5 kPa)*
40W 40 in H2O (10 kPa)
001 1 PSI (7 kPa)*
005 5 PSI (35 kPa)
Code Description
GV Vacuum Gage
GP Positive Gage
FMA _____ _____ _____ _____ - Typical Order Number
*Contact factory for additional custom pressure ranges.
Ordering Information
