Tender Specification: 

155 – Airflow Volume Monitor

Make: Syannlab Solutions Pvt. Ltd.

The Airflow Volume Monitor accurately measures and displays airflow volume across the hood sash on a bright 1.3” OLED display, ranging from 100 to 10,000CMH. With a sleek, glass front semi-flush design, the Airflow Volume Monitor allows for easy mounting on the hood fascia panel. The device is equipped with an audio alarm and visual red and green light indication on the front, ensuring that users are promptly alerted to any out-of-range airflow volume detected.
One of the most impressive features is the ability to set independent lower and upper airflow velocity limits. If the airflow falls outside these user-defined set points, an audio and visual alarm will be triggered, alerting users to the issue. The device can also display measurements in both SI and Imperial systems.

The Airflow volume Monitor is designed to show very low change in airflow volume with minimal static loss. Additionally, the device boasts a runtime counter and reminder alerts. Users will receive reminders to calibrate the device after 4000 hours of use and settable on the device based on per day usage. 

The Airflow Volume Monitor should be produced with touch sensitive buttons. The device provides the light on/off control through a contactor relay. The device also should provide air fail alert through NO NC contacts. Optionally, device shall provide analogue outputs like 0-10V or 4-20mA.   
To ensure the highest level of quality and safety, the Airflow Monitor meets the ASHRAE 2016 guidelines and CE requirements of 30 & 35 derivatives. The device manufacturer should possess ISO 9001, 14001 & 45001 certificates, further demonstrating their commitment to excellence.