Pressure Measurement & Control

Air velocity and flow measurement in system ducts

July 2018 Pressure Measurement & Control

Kimo manufactures a new system to measure air velocity and airflow in ducts. The Debimo measuring blades can easily be installed inside any circular or rectangular duct and the streamlined design avoids any air loss and turbulence inside the duct. This system is based on a differential probe – also called an averaging Pitot tube – and can measure dynamic pressure at different locations.

This pressure is measured with the new generation of Kimo CP300 transmitters. These models have the accuracy required to measure differential pressure, to calculate air velocity from 2 to 100 m/s and to control airflow in ducts.

When the duct sizes have been configured the system enables the user to:

• Compensate air velocity and airflow according to air temperature.

• Enable different setpoints on 2 relays.

The data can be sent through two 4-20 mA or 0-10 V analog outputs, or through the RS-485 Modbus digital output.

For more information contact Anastas Schnippenkotter, ASSTech Process Electronics & Instrumentation, +27 (0)11 708 9200,,


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