N° 414
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Frequency control of industrial ventilators
The frequency as well as the direction of rotation of industrial ventilators should be controlled. At this, on one of the blades of the ventilator a fluorescent label is glued on.
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N° 336
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Detection of fluorescent marks on wooden board
Fluorescent marks should be detected on wooden boards. At this, two marks which are close together should be proper detected.
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N° 333
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Frequency control of industrial ventilators
Ventilators for industrial purposes should be frequency checked. Furthermore the direction of rotation should be controlled.
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