Honeywell first introduced its Zephyr
airflow sensors HAF Series in March 2010 with a digital output version, 200 SCCM, a long port fastener mount, and a short port snap mount. This product is considered the foundational building block of the Honeywell Zephyr portfolio. Since that first launch, Honeywell has twice introduced additional products to the building block portfolio: October 2010: analog, 200 SCCM, long port fastener mount, and short port snap mount; February 2012: short port fastener mount, and an airflow range from ±50 to ±750 SCCM.
Honeywell's customers use the Zephyr building block with their own bypass solution. The bypass serves as the main airflow channel in the equipment, such as a ventilator. Honeywell's building block airflow sensor is attached to the bypass. When air passes through the bypass, by design only a small amount of air goes into the Zephyr building block because, due to its sensitivity, it measures a small amount of airflow. The customer must ensure that the air is laminarized (smooth) when it enters the bypass, and does this via the bypass shape and through the use of filters, screens, etc.
In December 20112, Honeywell announced its new Zephyr Digital Airflow Sensors that provide an airflow range from 0 to 20 SLPM and 0 to 200 SLPM. These new devices have been designed for customers who don't want to create their own bypass solution. Honeywell has affixed the Zephyr building block airflow sensor directly to the bypass, eliminating customers having to design their own bypass and saving them time and effort.
Honeywell's new Zephyr Digital Airflow Sensors 0 to 20 SLPM and 0 to 200 SLPM offer customers three important benefits:
· High performance: Tight Total Error Band [±4% reading] and high accuracy [±3.5% reading]
· Ease of integration: Simple electrical interfaces (regulated, compensated, calibrated, linearized); multiple mechanical configurations (manifold mount, male and female fittings)
· Custom calibration: Forward flow direction; optimized custom calibration for many gases (dry air, helium, argon, nitrogen, nitrous oxide, carbon dioxide)
Honeywell's Zephyr Airflow Sensors may potentially be used in many medical and industrial applicatons. View more information.