Calibration of flow velocity, flow rate and mass flow
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Calibration of flow velocity, flow rate and mass flow Free jet wind tunnel WK320 with Laser Doppler Anemometer (LDA) The Höntzsch calibration laboratory The Höntzsch calibration process is subject to the Quality Management Systems ISO 9001 and is accredited according to DIN EN ISO/IEC 17025 by the German Accreditation Body (DAkkS). The DAkkS accreditation of our calibration laboratory for the field of gas flow velocity, volume of flowing gases and mass of flowing gases is a confirmation by the German Accreditation Body (DAkkS) about the traceability to national standards of the Physikalisch-Technische Bundesanstalt (PTB) and the accuracy of the references used. Naturally the calibration of all sensors and flow meters outside of the scope of accreditation is also based on references traced to national standards of the Physikalisch-Technische Bundesanstalt (PTB). Ensuring global uniformity of dimensions, Höntzsch GmbH & Co. KG works closely together with other national and international metrological institutes. This goal is achieved through an intensive exchange of research results within the framework of Höntzsch GmbH & Co. KG‘s membership in the German calibration service (DKD) in technical committee 11, Flow Measurands, and through extensive international comparative measurements. Höntzsch works resolutely and in close collaboration with national and international accredited laboratories to further develop calibration methods and reduce measurement uncertainties. Atmospheric flow rate test bench AVP High pressure flow rate test bench HDVP

DAkkS-calibrations according to DIN EN ISO/IEC 17025: Measuring unit Calibration medium Measuring range Best measurement uncertainty in relation to the measured value Flow velocity Flow rate or volume of flowing gases Mass flow or mass of flowing gases Nozzle flow rate test bench DVP

ISO calibrations / factory calibrations: Calibration medium Measuring range Best measurement uncertainty in relation to the measured value Flow velocity Flow velocity at high temperatures (HTP) Measuring unit Flow rate Flow rate up to 10 bar absolute pressure for air and other inert gases various gases: Flow rate argon, propane, hydrogen, natural gas, landfill gas, helium, air, butane, oxygen, noble gases, nonaggressive gases Flow velocity Flow rate Flow rate numerous liquids

Göttinger free jet wind tunnel Calibration range Calibration medium Free jet wind tunnel differential pressure system with DAkkS-calibrated transfer measurement standards Calibration range Calibration medium Free jet wind tunnel WK180 Atmospheric flow rate test bench PTB-calibrated transfer measurement standards Calibration range Calibration medium Nozzle flow rate test bench DAkkS-calibrated, supercritically operated venturi nozzles / laval nozzles Calibration range Calibration medium

Low velocity wind tunnel with closed test section DAkkS-calibrated transfer measurement standards Calibration range Calibration medium High temperature flow test bench in closed construction 'University of Stuttgart' LDA-calibrated transfer measurement standards Calibration range Temperature range Calibration medium High temperature flow test bench HTP in closed construction 'University of Stuttgart'

High pressure flow rate test bench in closed construction PTB-calibrated transfer measurement standards Calibration range Pressure range Temperature range Calibration medium air (optional numerous inert gases) * calculated from flow rate and average flow velocity with the respective profile factor in DN200 pipe Real gas flow rate test bench DAkkS-calibrated transfer measurement standards Calibration range Calibration medium various gases * calculated from flow rate and average flow velocity in DN16 pipe Water flow rate test bench electromagnetic flow rate meter Calibration range Calibration...

Calibration / Measurement uncertainty / Recalibration Höntzsch calibration is able to carry out an optimally tailored calibration for every type of operation. As close an approximation as possible to the real conditions is achieved using a variation of pressure, temperature and type of calibration medium. This ideal choice of calibration conditions means that measurement uncertainties in practical applications are reduced to a minimum. Höntzsch calibration certificates document the set value and actual value and provide the user with proof and reliability that faultless and accurate...