Current Sensors
Movable Sensor Bar
Movable horiztonal sensor bars mount on the inside of the Horizontal fumehood frame.
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Phoenix Controls Sash Sensors detect a fume hood’s sash position. Sensors can be configured to operate with the sash configurations found on most VAV fume hoods. The sash sensors are used together with a Phoenix Controls fume hood monitor and airflow control valve to maintain a constant average face velocity at the sash opening
Either sensor and magnet bar sets attached directly to overlapping panes or magnet bars and blocking strips attached directly to the overlapping panes with a fixed sensor bar mounted across the entire horizontal sash opening. As the sashes are moved, the magnet bar covers part of the sensor bar, closing the magnetic switches it overlaps. The sensor bar changes resistance and a variable sash position voltage is received by the fume hood monitor. Multiple horizontal frames can be arranged side-by-side, above or below each other, and unequal in area.
