Product Specification

Honeywell Zephyr?

Digital Air flow Sensors

HAF Series-High Accuracy
10 SLPM, 15 SLPM, 20 SLPM, 50 SLPM, 100 SLPM, 200 SLPM or 300 SLPM

High Accuracy Digital Air flow Sensors HAF Description

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 10 SLPM, 15 SLPM, 20 SLPM, 50 SLPM, 100 SLPM, 200 SLPM or 300 SLPM, with custom flow ranges available. The sensors are fully calibrated and temperature compensated with an onboard Application Specific Integrated Circuit (ASIC).

The HAF Series >10 SLPM is compensated over the calibrated temperature range of 0 ℃to 50 ℃ [32 ℉ to 122 ℉]. The state-of-the-art ASIC-based compensation provides digital (I2C) outputs with a response time of 1 ms.

High Accuracy Digital Air flow Sensors HAF  Features and Benefits
● Total error band (TEB)
● High accuracy
● Fast response time (1 ms)
● High stability
● High sensitivity at very low flows
● High 12-bit resolution
● Wide airflow range
● Choice of port styles
● Linear output
● Wide supply voltage range [3 Vdc to 10 Vdc]
● ASIC-based I2C digital output
● Factory or custom calibration for multiple gas types
● RoHS-compliant materials

High Accuracy Digital Air flow Sensors HAF Potential Applications
● Medical

   Anesthesia Delivery machines
   Ventilators
   Ventricular Assist Devices (Heart Pumps)
   Spirometers
   Laparoscopy
● Industrial

   Analytic instrumentation (spectometry, chromatography)
   Air - to - fuel ratio
   Fuel cells
   Fume hoods
   Gas leak detection
   Process control gas monitoring
   Vacuum pump monitoring