Temperature sensor PAV3000

pressureflowmass flow

PAV3000 was designed as an economical high- performance air velocity sensor for thermal management in even the most space constrained locations such as data center server farms. Unlike thermistor based solutions, the Posifa MEMS sensor core is minimally affected by ambient temperature changes and provides instant real time feedback on proper air flow at the server blades. PAV3000 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 temperature gradient caused by mass flow, delivering excellent signal-to-noise and repeatability. The "solid state" thermal isolation structure on the sensor die eliminates the need for surface cavity or fragile membrane used in competing technologies, making the sensor resistant to clogging and pressure shock. The PAV3000 series is surface mountable (SMD) and provides a digital I2C output. APPLICATIONS • Data Center Thermal Management • HVAC VAV Damper Control • HVAC Filter Monitoring FEATURES • Unsurpassed performance in a robust and cost effective package • “Solid state” sensing core (no surface cavity or fragile membrane) resistant to clogging and pressure shock • No moving parts • Fast response times (125 ms typ) • Excellent repeatability (1% FS) • SMD packaging MAXIMUM RATINGS • Operating Temperature: -25 to 85 °C • Storage Temperature: -40 to 90 °C • Humidity: 0 to 100% RH, non-condensing