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Introducing the Zephyr™ Digital Airflow sensors from Honeywell

The Zephyr™ Digital Airflow Sensors from Honeywell are available in a wide range of airflows. With recent additions to the Zephyr™ range including low flow ranges 0-10 and 0-15 SLPM and high flow ranges 0-50, 0-100, and 0-300 SLPM, Honeywell now offer one of the industry’s broadest range of Digital airflow sensors available today.

The 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. The sensors are designed to measure mass flow of air and other non-corrosive gases.

Standard flow ranges available are 10 SLPM, 15 SLPM, 20 SLPM, 50 SLPM, 100 SLPM, 200 SLPM or 300 SLPM, with custom flow ranges also available.

The sensors are fully factory calibrated and temperature compensated with an on-board Application Specific Integrated Circuit (ASIC).

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

The Zephyr™ Digital Airflow 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.

The Zephyr™ Digital Airflow Sensors provide customers with enhanced reliability, high accuracy, repeatable measurements, and the ability to customize sensor options to meet many specific application needs. The new expanded range of airflows can optimize the customers’ system accuracy by providing a sensor that is matched to the airflow range required by the application. In addition the combination of rugged housings with a stable substrate makes the Zephyr™ products extremely robust.

Free Sample   
Features
  • High accuracy: Ideal for use in demanding applications that require high accuracy
  • Fast response time [1 ms]: Allows quick response to a change in airflow
  • High stability: Reduces errors due to thermal effects and null shift, providing accurate readings over time and often eliminating system calibration after PCB mount and periodically over time
  • High sensitivity at very low flows: Provides a fast response time at the onset or cessation of flow
  • High 12-bit resolution: Increases ability to sense small airflow changes
  • Wide airflow range: 0-10, 0-15, 0-20, 0-50, 0-100, 0-200, and 0-300 SLPM, plus custom ranges
  • Linear output: Provides a more intuitive sensor signal than the raw output of basic airflow sensors, helps reduce production costs, design and time
  • Choice of port styles: Manifold mount, 22 mm OD tapered male fitting, and G 3/8 female threaded fitting
  • Wide supply voltage range [3 Vdc to 10 Vdc]: Flexibility to choose the voltage needed for the system
  • ASIC-based I2C digital output compatibility: Simplifies integration to microprocessors or microcontrollers reducing PCB complexity and component count
  • Factory or custom calibration: For gas types such as dry air, helium, argon, nitrogen, nitrous oxide, and carbon dioxide.
  • ROHS-compliant: Meet Directive 2002/95/EC
Data

The Zephyr™ Digital Airflow Sensors have been designed and manufactured according to ISO 9001 standards and due to the wide range of airflows available they can be used in many medical or industrial applications:

Medical

  • Anaesthesia delivery machines (low)
  • Laparoscopy (low)
  • Spirometers (high)
  • Ventilators (high)
  • Ventricular assist devices (heart pumps) (high)

Industrial

  • Air-to-fuel ratio (low)
  • Analytical instrumentation (spectrometry, chromatography) (low)
  • Fuel cells (high)
  • Fume hoods (low)
  • Gas leak detection (low)
  • Process control gas monitoring (low)
  • Vacuum pump monitoring (high)

Anglia are offering customers FREE samples of the Zephyr™ Digital Airflow Sensors from Honeywell, fill in the form below to register your interest now.

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FREE samples for UK and Ireland customers only, subject to availability.

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