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Swema SwemaFlow 126 | Air capture hood

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Available to purchase from Instrument Solutions is the SwemaFlow 126 with 300 x 300 mm fabric hood assembly, charger and case

The SwemaFlow 126 measures both supply and exhaust air volumes from 1.5 to 125 l/s (5.4 to 450 m3/h), together with temperature and barometric pressure. The instrument measurement principle is based on a net of hot wires, which gives a good and accurate mean value of the air flow in the capture opening. The value on the instruments display is the average of a number of readings with barometric pressure and ambient air temperatures are taken to compensate the instrument to standard conditions.

Features

Pressure drop compensation

The SwemaFlow 126 instrument has a built in facility to compensate for the restriction the hood and measurement grid puts on the fan system. The "back pressure method" takes two measurements, one with a restriction ring in-place and one without, to compensate for the restriction. This is the ideal tool for low pressure ventilation systems.

Air flow scaling

Apart from the "back pressure method" it is possible to show the flow multiplied with a Flow Factor. This can be useful when balancing systems and this factor has been determined via an alternative measurement method such as a series of pitot traverses in a supply duct from a fan.

Technical

Range      1.5 to 125 l/s, 7 to 450 m3h

Temperature        0 to 50 oC

Airflow accuracy        3 % of the indicated value or 0.5 l/s whichever is the greater

Weight      1.82 kg with 300 x 300 mm fabric hood assembly

Memory       9999 measurement points

Support documents

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SwemaFlow 126 flow hood data sheet.pdf SwemaFlow 126 flow hood data sheet
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SwemaFlow 126 flow hood user manual.pdf SwemaFlow 126 flow hood user manual
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