Airflow Monitoring-based VAV Control System(Single Damper)

The Airflow monitoring-based VAV control system is suitable for multi-
specification fume hoods. It creates a secure, comfortable, and productive
working environment in the laboratory. Ensuring the health and safety of its
staff.
 The sash position sensor transmits the sash height to the VAV controller.
Based on this height and predetermined air velocity, the controller calculates
the desired air volume at the point. The damper achieves the desired air volume
by adjusting the blade opening degree. Meanwhile , the system constantly
compares the monitored air volume, which is measured by the impeller
anemometers, with the desired volume until the two match.
Features of Airflow Monitoring-based VAV Control System
● With a damper body≤20cm, it ensures easy installation without space
limitations
● Response time <2.5 seconds
● Control accuracy >95%
● Straight-Duct required<1D
● Turndown ratio 15:1
● Support plug-and-play functionality, eliminating the need for commissioning
● Pressure-independent with flow and damper opening visualization capabilities
● Support third party standard communication protocol
● Suitable for controlling variable airflow in all types of fume hood

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