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Product Applications
Fan monitoring, Damper feedback, Filter monitoring, Air handlers.
The new Series AVFS Adjustable Air Flow Switch complements the Dwyer Instruments line of thermo-anemometer transmitters and handheld instruments. The AVFS is specifically designed to monitor air flow in ducts and provides a 3A contact output to indicate a change or loss of flow. Simply turn on the fan or air handling unit and adjust the set-point via the potentiometer to show normal status. Then alter a damper or decrease fan speed to activate the AVFS. The AVFS will signal a loss of flow and the N.O. SPST output will indicate the detected decrease. For ease of installation and system troubleshooting, the Series AVFS possesses a redgreen LED indication to provide local status if the air flow is above (green) or below (red) the set-point. The AVFS provides a 5% set-point repeatability across a full scale range of 1-10 ms (197-1969 fpm) and includes a mounting bracket for quick duct mounting. The AVFS Series Adjustable Air Flow Switches come in a compact, rugged PBT enclosure that is rated NEMA 4X (IP65), making them ideal for any ventilation system installation or similar BAS application.
Mahdi Hasan (A L M Engineering & Instrumentation Private Limited)
No. 302-304, Damji Shamji Industrial Complex, L. B. S. Marg, Kurla West, Mumbai, Maharashtra - 400070
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