Flow sensor PMF4000

medical

PMF4000 features Posifa’s third-generation thermal flow die, benefiting from the latest innovations in microfabrication. The sensor die uses a pair of thermopiles to detect changes in température gradient caused by mass flow, delivering excellent signal-to-noise and repeatability. The “solid State” thermal isolation structure on the sensor die éliminâtes the need for surface cavity or fragile membrane used in competing technologies, making the sensor résistant to clogging and pressure shock. The PMF4000 sériés includes the analog output PMF4000V and the digital l2C output PMF4000D. The supported max flow rates range from 12 SLM to 300 SLM. The sensors are température compensated over the température range of 0 to 50 °C. The linearized output provides maximum flexibility and ease-of-use. APPLICATIONS • Oxygen concentrators • Respirators and ventilators • Nebulizers • CPAP equipment • Anesthesia delivery • Leak détection • Spectroscopy • Mass flow controller • Fuel cellcontrol FEATURES • Unsurpassed performance in a robust and cost effective package • "Solid State” sensing core (no surface cavity or fragile membrane) résistant to clogging and pressure shock •Highly accurate (4% reading typ.) •Fast response time (5 ms typ.) •Linear output and température compensation •Long-term stability with minimal null drift •Wiring harness with pre-installed receptacle (analog version only) MAXIMUM RATINGS •Operating Température: -25 to 85 °C •Calibrated Température Range: 0 to 50 °C •Storage Température: -40 to 90 °C •Humidity: 0 to 100% RH, non-condensing •Shock: 100 g peak (5 drops, 3 axis)