Oval Wheel Meter OS2 AG53 for High Temperatures Robust and reliable design For the precise measurement of the volume and flow rate of lubricants, oils and fuels • Highest quality and precision for almost • Suitable for measuring materials up to 130°C all volume and flow rate measurements in • Blind version with an open collector pulse pick-up an extensive measuring range (resolution approx. 100 p/l) • Robust and compact design • Simple operation and installation • Excellent load capacity due to double-sided axle attachment 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 a pulse pick-up. Technical Data Measured error Repeatability Resolution Measuring temp. Ambient temp. Measuring pressure Measured materials Viscosity +/- 1% of measured value with standard calibration +/-0.3% of measured value with special calibration better 0.05% approx. 100 p/l -10°C to +130°C -20°C to +65°C 16 bar only liquid media 2 – 2000 mPas Elec. connection Supply: Screw connection: Output: Aluminium, hard anodised Aluminium Hardened steel (standard), stainless steel, if requested Bronze (standard), carbon Bearing: bushings, if requested Gasket: Fluorcarbon elastomer Connector housing: Aluminium paint finish G ¾“ for screw in connection with elastic gasket IP 65 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 Process connection System of protection Pressure equipment directive Housing/Cover plate: Oval wheels: Axles: Applications, e.g. for measuring the volume and consumption of lubricating oil, mineral oil, fuel oil and hydraulic oil, of diesel 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. Viscosity (mPa.s)

Pressure Loss Model / Dimensions Pressure loss depends on the dynamic viscosity OS2 AG53 Blind Version Type Mounting Length 90 mm between the sealing surfaces Subject to technical changes Bopp & Reuther Messtechnik GmbH Postfach 1709 67327 Speyer, Germany Am Neuen Rheinhafen 4 67346 Speyer, Germany Phone : +49 (6232) 657-0 Fax : +49 (6232) 657-505 Internet : www.bopp-reuther.de eMail : [email protected]