Unique Vortex Hand-Held Unit

The new vortex hand-held unit HVA, produced by Höntzsch GmbH (Germany), is suitable for use in gases and gas mixtures. This handy instrument lends itself to portable application, for instance for test or check measurement. It operates together with the manufacturer’s vortex flow sensors – be it with sensors designed as probes or measuring tubes, with or without integrated temperature probes or with a separate temperature probe. The HVA records the flow rate and temperature in addition to the flow velocity. The high-contrast LCD display shows the measured value for the flow velocity in m/s with 13 mm high digits. The flow rate is shown in m³/h or l/min and the temperature in °C. The display updates the measured values every second and can be switched to the respective measurable variable. The instantaneous values are also retrievable in long-term measuring mode.

Just how versatile this unit is, is reflected in the application range: in connection with the sensor, the HVA can be used for measuring in air, exhaust air, clean gases, and process gases as well as in gas mixtures of unknown or variable composition. This allows problem-free recording of emissions in small and large chimneys. Reliable measurements in emissions charged with particles or condensation or vehicle exhaust gases have become possible. This robust measuring system, which functions without moving parts, can cope with impurities such as sooty, dust, cement, carbon or toner particles. Even measuring in air with a dust content of up to approx. 900 g/m³ or with a high condensation content such as humid biogas, landfill gas or in superheated steam is possible.

The HVA is suitable for flow measurement in all industrial sectors, municipal facilities and public authorities, in research and development and particularly for the velocity area method for determining the flow rate or the average flow velocity in acceptance inspection and for warranty verification according to VDI/VDE 2640.