Oval Wheel Meter OS2
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Oval Wheel Meter OS2 for precise measurement of the volume and flow rate of lubricants, oils and fuels • Highest quality and precision for almost all volume and flow rate measurements in an extensive measuring range • Robust and compact design • Simple operation and installation 3 standard designs available: • as blind version with reed sensors • with new local indicator type MFE • MFE1 battery powered • MFE3 24 VDC, with pulse and current output Measuring principle Oval wheel meters are direct volumetric meters. The measuring element consists of two meshing precision oval wheels which are driven by the liquid. Therefore, each revolution of the oval wheels transports an exact quantity of liquid, defined by the geometry of the measuring chamber, through the meter. The number of revolutions is directly proportional to the flow quantity. These are scanned by high-quality reed sensors and evaluated in a local indicator. Technical Data Measuring error Repeatability Resolution Measuring temp. Ambient temp. Measuring pressure Viscosity Elec. connection Process connection Protection class Ex - protection +/- 0,5% of measured value with standard calibration +/- 0.3% of measured value with special calibration +/- 0.05% of measured value on request better 0.05% approx. 100 p/l -10°C to +90°C (blind version) or up 70°C with local indicator type MFE -20°C to + 70°C 16 bar 2 – 2000 mPas supply MFE1 battery MFE3 24VDC aluminium, hard anodised aluminium hardended steel (standard), stainless steel, if requested bronze (standard), carbon bearing: bushings if requested fluorcarbon elastomer gasket: polyester MFE housing: G ¾“ female connection DN15, PN16, flanged connection IP 50 (blind version), IP 65 (with local indicator MFE) not required for blind version (reed sensor) housing/cover plate: oval wheels: axles: Pressure equipment directive classification according to pressure equipment directive 97/23/EG the OS 2 is suitable for liquids from group 1; classification according to Article 3, § 3 Application Applications, e.g. for measuring the volume and consumption of lubricating oil, hydrocarbons, fuel oil and hydraulic oil, in power units, burners and engines, of greases, paints, oil circuits and oil treatment plants, etc. The device is suitable for industrial application due to its robustness and excellent accuracy. The oval wheel axles are pivoted on both sides, a feature which enables this meter to function perfectly during pressure surges, short overloads or with high viscosities. Special design with stainless steel axles and carbon bushings, suitable for measuring fuels, e.g. petrol, etc. viscosity range

Pressure loss Pressure loss depending on the dynamic viscosity (in mPa.s) and flow 3 buttons select between: • flow rate • partial totalizer (resettable) • main totalizer (not resettable) Design / Dimensions OS2 with local indicator MFE blind version with local indicator with local indicator Face to face dimension subject to technical change Bopp & Reuther Messtechnik GmbH Postfach 1709 67327 Speyer Am Neuen Rheinhafen 4 67346 Speyer Telefon : +49 (6232) 657-0 Fax : +49 (6232) 657-505 Internet : www.bopp-reuther.de eMail : Info@bopp-reuther.de