Product Specification

Honeywell Zephyr?

Analog Airflow Sensors

HAF Series–High Accuracy
±50 SCCM to ±750 SCCM

Honeywell Zephyr? HAF Series sensors provide an analog 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 ℃ to 50 ℃ [32 ℉ to 122 ℉] and operates across a temperature range of -20 ℃ to 70 ℃ [-4 ℉ to 158 ℉]. The state-of-the-art ASIC-based compensation provides analog outputs with a response time of 1 ms.

High Accuracy Analog Airflow Sensors HAF Series Features and Benefits
● Fast response time
● Wide range of airflows
● Customizable flow ranges and configurable package styles
● Linear output
● High stability
● Low pressure drop
● 0.049 %FS resolution
● Low 3.3 VdC operating voltage option and low power consumption
● Small size
● Rosh-Compliant materials

High Accuracy Analog Airflow Sensors HAF Series Potential Applications
● Medical

   Anesthesia Delivery machines
   Ventricular Assist Devices (Heart Pumps)
   Nebulizers
   Oxygen concentrators
   Patient monitoring systems (respiratory monitoring)
   Sleep apnea machines
   Spirometers
   Ventilators
   Laparoscopy
● Industrial

   Air - to - fuel ratio
   Fuel cells
   Gas leak detection
   VAV system on HVAC ystem
   Gas meters
   HVAC filters