Air Flow Measurement Station

Air Flow Measurement unit uses averaging airflow measurement probes. Sensors that are placed into ducts side and top as cross, allow calculating average air velocity entire section of the duct by connecting outlets parallel to each other. The sensor measures static and total pressure difference which gives dynamic pressure according to the principle of pitot. Pressure difference is measured by differential pressure transmitter and transmitted to PLC unit. Airflow can be calculated from the differential pressure which is transmitted to the PLC unit with the formula below.



A1 and A2 terminals must be connected (+) pole of the differential pressure transmitter, B1 and B2 terminals must be connected to (-) pole in the same way. Electrical connection details of the differential pressure transmitter can be seen in prospectus of the unit.