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Observator 100 years

OPC 1347 Cone

This cone is used in combination with a rotating vane anemometer. It can double the capability of your velocity instrument into an air volume flow meter as well. It is used for commissioning and balancing of air volume flow at grilles, diffusers and air valves up to 165 mm dia in residential buildings. Including specific calibration of the cone on air supply and exhaust. Airflow traceable from calibration graphs.


  • Suitable for measuring air exhaust and supply up to a maximum of 150 m3/h
  • Suitable for Airflow rotating vane anemometers LCA301, LCA501 and multifunctional TA465 with 995 rotating vane
  • Suitable for air valves up to 165 mm in diameter
  • ABS black plastic
  • Light in weight
  • Easy assembly
  • Incl. specific calibration on the applied anemometer
  • Airflow traceable from calibration graphs

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