Calorimetric flow sensor for gases




By means of a sensor element and auxiliary energy a temperature difference is used to convert the actual flow velocity into an electrical standard signal. This electric signal changes in proportion to the flow velocity and can be further processed.


With the flow measurement technology from octogon, even the smallest flows are recorded quickly and with high precision using the calorimetric measuring principle.


The flow sensors and flow monitors are intended for use in applications in which flow is required as a trend indicator, including in air conditioning, ventilation and heating technology and in many industrial areas. Heating, ventilation and air conditioning systems, fire extinguishing systems, aggregates, extractor hoods, filter monitoring, process control, fuel cells and gas measuring stations are further application examples of our flow sensors.


Technical features

  • Flow: 0...10 m/s bis 0...100 m/s(gases)
  • Output: 4...20 mA
  • Supply: 24 VDC
  • Process connection: 1/2" / 3/4" / 1" / 1,5" / 1/2NPT
  • Electrical connection: M12x1 / Deutsch DT04 / SuperSeal 1.5 / Bayonet / Valve / MIL
  • Sensor tube and Case: Stainless steel
  • Adjustment: in factory



For use in air-conditioning and ventilating plants, heating installations and the whole range of industrial facilities. With its numerous electrical connections, the flow sensor is also suitable for applications with higher requirements.