Sensors and Transducers
Mass Air Flow Sensors
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POSIFA Microsystems Inc

1925 Zanker Road,
San Jose, CA 95112
USA
Tel: 1-650-646-5788
Fax: 1-866-213-8603
Email: info@posifamicrosystems.com

  

European Distributor

BS-rep GmbH
Eichertstr. 68, D-56745 Weibern, Germany

Tel: +49 (0) 2655 / 96 26 476
Email: info@sensor-rep.de 

  

  

 

PMF4000 (12 slm to 300 slm)

The PMF4000 series of Mass Air Flow Sensors co-vers the ranges from 12 SLM to 300 SLM. The sen-sors are fully calibrated and compensated over the temperature range of 0 to 50 °C (32 to 122 °F). The linearized analog output (1 to 5 V) provides maxi-mum flexibility and ease-of-use.


PMF4000 Series Datasheet

Part Number Spec Price
PMF4003V

1 to 5 V, linear; 0 to 12 SLM

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PMF4004V

1 to 5 V, linear; 0 to 20 SLM

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PMF4005V

1 to 5 V, linear; 0 to 35 SLM

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PMF4100V

1 to 5 V, linear; 0 to 50 SLM

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PMF4101V

1 to 5 V, linear; 0 to 100 SLM

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PMF4102V

1 to 5 V, linear; 0 to 150 SLM

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PMF4103V

1 to 5 V, linear; 0 to 200 SLM

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PMF4104V

1 to 5 V, linear; 0 to 300 SLM

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  • Features
  • Applications
  • Specs
  • Resources
  • Unsurpassed performance in a robust and cost effective package 
  • High accuracy (2% F.S. typ.*) 
  • Linear output and temperature compensation 
  • Long-term stability with minimal null drift 
  • “Solid state” sensing core (no surface cavity or fragile membrane), resistant to clogging and pressure shock 
  • Analog output (1 to 5 V)** 
  • Fast response time (1 ms typ.) 
  • Custom ranges between 10 SLM and 300 SLM


* 2% F.S. max option is available

  • Oxygen concentrators 
  • Oxygen conservers 
  • Respirators and ventilators 
  • Nebulizers 
  • Continuous positive airway pressure (CPAP) equipment 
  • Anesthesia delivery 
  • Leak detection 
  • Spectroscopy 
  • Mass flow controllers 
  • Telecommunication systems 
  • Environmental climate controls 
  • Fuel cell controls
ELECTRICAL CHARACTERISTICS
Test Conditions: Vin=10±0.01VDC, Ta=25°C. Relative Humidity: 40%<RH<60%
Maximum Operating Temperature Range –25°C to +85°C
  Flow Range 1  
PMF4003V 0 .. 12 SLM 2  
PMF4004V 0 .. 20 SLM  
PMF4005V 0 .. 35 SLM  
PMF4100V 0 .. 50 SLM  
PMF4101V 0 .. 100 SLM  
PMF4102V 0 .. 150 SLM  
PMF4103V 0 .. 200 SLM  
PMF4104V 0 .. 300 SLM  
 
SPECIFICATIONS MIN TYP MAX UNIT CONDITIONS
Analog Voltage Output 3 1   5 VDC  
Null Voltage  .95 1 1.05  VDC  
Null Drift   0.2   % F.S.  Per year
Repeatability    0.1   % F.S.   
Load   100    
Accuracy (Full Scale)4   2  3 % F.S.  0°C to +50°C
Response Time   1 mSec  
Supply Voltage5 8 10 14 VDC  
Supply Current 22   23 mA  
Wetted Materials Silicon carbide, Epoxy, PPS, FR4, Silicone as static seal
1. Custom ranges available between 10 and 300 SLM
2. SLM: standard liter per minute.  Standard conditions: 0 °C and 1 atmosphere
3. Custom output between 0 to 3 V options are available, e.g. 0.3 to 2 V output
4. Includes temperature drift and linearity error; 2% F.S. max option available.
5. 5 V supply voltage option is available 
 
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