General requirements for intelligent face wind speed control system of fume hood
VAV control system with pressure independence，Ventilation cabinet window action，system automatically calculates the exhaust volume required by the current window height of the ventilator，Pressure independent VAV butterfly valve Quick response，Quick regulating valve exhaust，Meet the requirements of ventilation cabinet；Air volume sensor real-time monitoring exhaust air volume，Fast and stable ventilation cabinet exhaust，Ensure constant wind speed of ventilation cabinet，Control accuracy is within ± 10%。
Each fume hood is equipped with a set of VAV control system，Ensure that the window of the fume hood is at any position，surface wind speed of the ventilator is rapidly constant at the set value，Generally 0.5M/S；System includes：A VAV butterfly valve with air volume measuring device，A LCD touch control screen，A displacement sensor，A sensor exists in a region，A control power module；
System control functions：
●System adopts the control mode of window height detection；
●Real-time monitoring of window average wind speed，Real-time exhaust，Real-time window height values (mm) ;
●Operating parameters of ventilation cabinet：Wind speed value for person/unperson，Door height out of limit，Minimum ventilation, etc.；And the temperature in the cabinet
●System one key start stop function；
●Emergency，One-button quick switch to emergency exhaust，Air valve fully open；
●System can automatically switch to energy-saving (unmanned) working mode
●Real-time status indicator：Energy saving/normal/emergency
●Exhaust linkage function；
●Direct control of lighting in fume hood；
●Window over limit alarm function of fume hood；
●Fume hood window surface wind speed over limit alarm function；
●VAV low air pressure alarm function；
●Maintain the minimum exhaust volume of 200 m3/h when the fume hood window is fully closed; (minimum air volume can be set)
●Real-time feedback of system exhaust volume；
●Time reminder function during the experiment, including timing and countdown；
●Text prompt function；
●Compatible with Automatic Windows Control System；
●System adopts the design of pull-out
●Support ModbusRTU Standard agreement，Strong scalability；
Accessories parameters：
VAV butterfly valve
Butterfly valve specification
| Fume hood monitoring panel | Door height sensor | Area presence sensor |
 |  |  |
General requirements for intelligent face wind speed control system of fume hood
VAV control system with pressure independence，Ventilation cabinet window action，system automatically calculates the exhaust volume required by the current window height of the ventilator，Pressure independent VAV butterfly valve Quick response，Quick regulating valve exhaust，Meet the requirements of ventilation cabinet；Air volume sensor real-time monitoring exhaust air volume，Fast and stable ventilation cabinet exhaust，Ensure constant wind speed of ventilation cabinet，Control accuracy is within ± 10%。
Each fume hood is equipped with a set of VAV control system，Ensure that the window of the fume hood is at any position，surface wind speed of the ventilator is rapidly constant at the set value，Generally 0.5M/S；System includes：A VAV butterfly valve with air volume measuring device，A LCD touch control screen，A displacement sensor，A sensor exists in a region，A control power module；
System control functions：
●System adopts the control mode of window height detection；
●Real-time monitoring of window average wind speed，Real-time exhaust，Real-time window height values (mm) ;
●Operating parameters of ventilation cabinet：Wind speed value for person/unperson，Door height out of limit，Minimum ventilation, etc.；And the temperature in the cabinet
●System one key start stop function；
●Emergency，One-button quick switch to emergency exhaust，Air valve fully open；
●System can automatically switch to energy-saving (unmanned) working mode
●Real-time status indicator：Energy saving/normal/emergency
●Exhaust linkage function；
●Direct control of lighting in fume hood；
●Window over limit alarm function of fume hood；
●Fume hood window surface wind speed over limit alarm function；
●VAV low air pressure alarm function；
●Maintain the minimum exhaust volume of 200 m3/h when the fume hood window is fully closed; (minimum air volume can be set)
●Real-time feedback of system exhaust volume；
●Time reminder function during the experiment, including timing and countdown；
●Text prompt function；
●Compatible with Automatic Windows Control System；
●System adopts the design of pull-out
●Support ModbusRTU Standard agreement，Strong scalability；
Accessories parameters：
VAV butterfly valve
Butterfly valve specification
| Fume hood monitoring panel | Door height sensor | Area presence sensor |
| | |
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