What is the Averaging Air Velocity Sensor™?
The Averaging Air Velocity Sensor™ (AAV) is yet another feature available with Ecogate’s greenBOX Master control system (software version 184.108.40.206 or higher). The AAV Sensor precisely measures fan air volume by measuring the velocity inside of the clean side duct at 24-46 different locations and averaging those out to give you the most accurate number possible. This allows the greenBOX Master to more accurately report on performance, while maintaining better system regulation and most importantly, helping Ecogate controls fulfill NFPA 664 requirements by ensuring minimum transport velocities are properly maintained at all times inside of the ducting system.
How does it work?
The AAV sensor works similarly to how a pitot tube reads air velocity inside of a duct. However, instead of moving the pitot tube across the duct as if you were taking the readings manually, a properly aligned AAV Sensor takes readings from 24-46 different locations inside of the duct and takes the average to give you the most precise number possible, automatically. With the AAV sensor installed, your greenBOX Master screen will display the actual velocity and airflow inside of your main duct at any given time. This is great information to have in case you want to make any changes to your system as well - such as changing the size of your main duct, or moving machines around - and helps in recalibrating your system with ease after changes have been implemented.
Why do I want one?
The AAV sensor ensures you are maintaining minimum required transport velocities in your main duct. This not only helps fulfill NFPA 664 requirements as mentioned above, but also helps keep your factory and workers safer as well. If for any reason your velocities dip under the desired ranges, that is a sign that something may be obstructing flow or of another issue, and with the AAV sensor properly installed, we can be proactive in troubleshooting and solving these issues BEFORE they cause major dust settling and fire or safety hazards. And who doesn’t want that?
If you want to find out more information about how Ecogate’s Averaging Air Velocity Sensor™ works and if you can get one for your system, contact us.
Author: Daniela Petrescu