The Koolair model EM measurement stations are elements designed to measure the air volume which passes through it. The EMC casing is circular with diameters from 80 to 630 mm, corresponding to the normalised diameters for circular ducts. The EMQ casing is rectangular with dimensions LxH mm. In the inlet duct a cross-shaped probe is installed to measure the differential pressure that varies with the air volume entering the unit.
The casing of the regulator is made from galvanized sheet metal and the cross-shaped tubes in aluminum. They can be installed either in a vertical or horizontal position It conforms to class C classification for casing leakage according to EN 1751.
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