Mass Airflow Sensors  PMF2000 Series

 The PMF2000 series of mass airflow sensors incorporate the latest MEMS and microelectronics innovations. The sensor die uses a pair of thermopiles to detect changes in temperature gradient caused by mass flow, delivering ultra-low noiseto-signal, and unsurpassed repeatability. The "solid state" thermal isolation on the sensor die eliminates the need for surface cavities or fragile membranes, used in competing solutions, making the sensor resistant to clogging and pressure shock. The sensor's internal signal conditioning circuitry leverages an off-the-shelf microcontroller, providing proven reliability and low cost.

 Features
・Unsurpassed performance in a robust and cost effective package
・High accuracy and repeatability (2% F.S.Max)
・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)
・High sensitivity at very low flows Fast response time (1 ms)
       
  Absolute Maximum Ratings
・Operating Temperature: -25 oc to 85 oc
・Storage Temperature: -40 oc to 90 oc
・Humidity: Oto 100%
・Shock 100 g peak (5 drops, 6 axis)
・Common Mode Pressure 25 psi**
*Sensor is resistant to water condensation
*Packaging with higher common model pressure rating is available