Regular calibration is essential if you want your instruments to deliver constant and accurate measurements. These measurements are based on recorded consumption or providing proof of a constant flow rate. This is often vital for guaranteeing consistent product quality, occupational health and safety for employees or protection of the environment. Reliable instruments are also essential for optimising processes in ventilation systems. halstrup-walcher operates a calibration laboratory accredited by the Deutsche Akkreditierungsstelle GmbH (DAkkS) in accordance with DIN EN ISO / IEC 17025 to guarantee the correct functioning of measurement systems. It is approved for calibrating a variety of measurements including flow rate (volume flow/mass flow) of the medium "air". The reference value for the laboratory is a maximum flow velocity of 10 m/s. The test facility is therefore perfectly designed for the calibration of measurement systems for air conditioning and process air ducts.

Measurement and regulation equipment and instruments - electricity and other energy
  • DAkkS
  • Flow Rate Calibrations
  • process air

Product features

Calibration certificate DAkkS or ISO
Calibration object Volume flow instrument (installed in air ducts), balometer, ventilator fans (ISO calibration only),
Flow rate range air flow velocity, volume flow, mass flow, ventilator fan curve

Additional product literature


Modern volume flow measurement facility

PDF documents

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