The new Honeywell Zephyr™ Digital Airflow Sensors, HAF Series(High Accuracy), deliver enhanced functionality driven by our customers’ product performance needs. Their high accuracy allows for very precise airflow measurement, often ideal for demanding applications with high accuracy requirements. These customizable devices provide enhanced reliability, digital accuracy and repeatable measurements to meet many application specifications.
Zephyr™ digital airflow sensors are designed to measure mass flow of air and other non-corrosive gases. They are available in standard flow ranges, and are fully calibrated and temperature compensated with an on-board Application Specific Integrated Circuit (ASIC). They provide a digital interface for reading airflow over the specified full scale flow span and temperature range, and their thermally isolated heater and temperature sensing elements help provide a fast response to air or gas flow.
Zephyr™ digital airflow sensors provide value for our customers by:
(
= competitive differentiator)
Meet high
accuracy specifications: High ± 2.5% accuracy allows for very precise airflow measurement, often ideal for
demanding applications with high accuracy requirements.
Customizable:
Allows the sensor to be designed to meet specific end-user needs.
High sensitivity at
very low flows: Allows the customer’s application to detect presence or absence of airflow.
High stability:
Reduces errors due to thermal effects and null shift to provide accurate readings over time, often
eliminating need for system calibration after printed circuit board (PCB) mount and periodically over
time.
Improves patient
comfort: Low pressure drop typically improves patient comfort in medical applications, and reduces noise and
system wear in components such as motors/pumps.
Saves customers
time and money: Linear output provides a more intuitive sensor signal than the raw output of basic airflow
sensors, often eliminating the need for customers having to linearize the output which can help to reduce
production costs, design, and implementation time.
Simplifies the
customer’s production requirements: ASIC-based I2C digital output compatibility eases integration to
micro-processors or microcontrollers, reducing PCB complexity and component count.
• Small size: Occupies less space on PCB, allowing easier fit and potentially reducing production costs; PCB
size may also be reduced for easier fit into space-constrained applications.
• Flexible: Low 3.3 Vdc voltage option and low power supply allows for battery-driven and other portable
applications.
Medical
• Anesthesia delivery machines
• Hospital diagnostics(spectrometry, gas chromatography)
• Nebulizers
• Oxygen concentratorss
• Patient monitoring systems (respiratory monitoring)
• Sleep apnea machines
• Spirometers
• Ventilators
•Ventricular assist devices
Industrial
• Air-to-fuel ratio
• Analytical instrumentation(spectrometry, chromatography)
• Fuel cells
• Gas leak detection
• Gas meters
• HVAC filters
• VAV system on HVAC systems
