TM Honeywell Zephyr Digital Airofl w Sensors HAF SeriesHigh Accuracy 50 SCCM to 750 SCCM DatasheetTM Honeywell Zephyr Digital Airofl w Sensors HAF Series - High Accuracy Honeywell Zephyr HAF Series sensors provide a digital interface for reading airflow over specified full-scale flow and compensated temperature ranges. The thermally isolated heater and temperature sensing elements help these sensors provide a fast response to air or gas flow. Zephyr sensors are designed to measure mass flow of air and other non-corrosive gases. Standard flow ranges are available at 50, 100, 200, 400 or 750 SCCM. Custom flow ranges are also available. The sensors are fully calibrated and temperature compensated with an onboard Application Specific Integrated Circuit (ASIC). The HAF Series is compensated over the temperature range of 0 C to 50 C 32 F to 122 F and operates across a 2 temperature range of -20 C to 70 C -4 F to 158 F . The state-of-the-art ASIC-based compensation provides digital (I C) outputs with a response time of 1 ms. These sensors operate on the heat transfer principle to measure mass airflow. They consist of a microbridge Microelectronic and Microelectromechanical System (MEMS) with temperature-sensitive resistors deposited with thin films of platinum and silicon nitride. The MEMS sensing die is located in a precise and carefully-designed airflow channel to provide repeatable response to flow. Zephyr sensors provide the customer with enhanced reliability, high accuracy, repeatable measurements and the ability to customize sensor options to meet many specific application needs. The combination of rugged housings with a stable substrate makes these products extremely robust. They are designed and manufactured according to ISO 9001 standards. What makes our sensors better Fast response time Wide range of airflows Customizable flow ranges and configurable package styles Linear output High stability Low pressure drop TIGHT TOTAL ERROR BAND fAsT REspONsE TIME WIDE RANGE Of AIRfLOWs sensing.honeywell.com 2