INSTRUMENTS & CONTROLS

1 1 TO BE REALLY SURE WWW.VAF.NL 774 Product Bulletin Viscosense ® 3D Viscosity & Density Measurement Enabling Mass Flow Measurement Introduction Most of the operating costs of a ship are fuel related. Therefore it is very important to use fuel in the most efficient way. Calculated Carbon Aromaticity Index (CCAI) is the index for the ignition quality of residual fuel oil and is calculated from density and viscosity of the fuel. The measurement and control of the viscosity and density ensures an improved combustion efficiency preventing engine damage and reduction of fuel and maintenance costs. Viscosity, Density and temperature measurement ViscoSense®3D is a highly accurate sensor with a superior measuring principle based on the proven ViscoSense® technology. The sensor offers density, viscosity and temperature measurements. Furthermore, in combination with VAF Instruments PT2 Flowmeters, this measurement system is a cost effective solution for mass flow measurement. Viscosity control A large variation in the quality and composition of fuel oil makes the behavior of the fuel oil at higher temperatures difficult to predict. An optimal viscosity is needed for the best possible atomization of HFO in the engine and thus the fuel will be burned completely without remaining deposits. Mass flow measurement In general fuel is bought in metric tonnes. Therefore, to be consistent, fuel consumption is more and more monitored in kilograms. Smart usage of existing components of the fuel system in combination with an upgrade of the viscosity sensor enables mass flow measurement. For the maritime industry After many years of research ViscoSense®3D is based on proven and patented ViscoSense® technology and especially designed for the maritime industry. VAF Instruments has decades of experience in viscosity measurement, is the worldwide market leader in measurement and control systems and specialist for the maritime and process industry. To maximize efficiency, improve operational excellence and reduce the environmental impact of shipping, VAF Instruments develops innovative and highly accurate measurement and control systems. With agents around the globe, VAF Instruments has a worldwide network. Over 70 representatives are specialised in VAF Instruments’ products and solutions. Please feel free to contact us or one or our representatives, any time, any place . Principle of operation ViscoSense®3D is able to measure inline the actual dynamic viscosity and density of a large range of liquids. The unique measuring principle of ViscoSense®3D is based on a torsional vibration of a pendulum in liquid. The measured damping of this piezo-driven vibration is directly related to the viscosity. A built-in temperature sensor is used to measure the temperature at the same location where the viscosity is measured. The sensor head is equipped with a cross vane through which a small amount of fluid is increasing the mass moment of inertia. The frequency of the pendulum, which is dependent on the mass moment of inertia, is now directly related to the density of the fluid. Reliability Due to the operating principle based on a torsional vibration, the measurement is insensitive to unwanted external influences. Flow velocity, flow direction and pulsations have no effect on the sensor operation. The robust sensor is designed to operate under the most difficult conditions in which a faultless and stable viscosity and density measurement is required. Cost-effective operation The ViscoSense®3D sensor is developed to measure viscosity and density without interruptions and with low operating costs. Since the sensor does not actually move, it is not subject to wear and therefore it ensures a long lifetime and a maintenance free operation. The non-stick surface of the pendulum in combination with a smooth edged design makes the sensor highly insensitive to fouling and easy to clean. The sensor is calibrated for life and the high accuracy will be kept without the necessity of re-calibration. Due to its compact design the sensor is suitable for easy installation in any new or retrofit system. Base plateTorsion tubePT 100 Receiver piezos Sensor head Driver piezos sensor 3 Features and benefits As a result of the torsional vibration technique, the flow velocity has no effect on the measurement. External vibrations have no influence on the ViscoSense®3D. In practice the smooth edged design of the sensor makes the system highly insensitive to fouling and easy to clean. In addition the closed-loop controlled torsional vibration principle is independent of ageing of piezo material, ensuring a long term stable and accurate measurement. FeaturesBenefits stable and accurate in-line measurement Optimal burning efficiency and fuel consumption Engine damage prevention and reduced maintenance Torsional vibration measuring principle Reliable under all circumstances Not influenced by vibrations, flow velocity or dirt particles No moving parts No preventive maintenance required Low operating costs Minimal load on components No ageing and wear effects s tainless steel 316L pendulum No wear due to corrosion Durable smooth edged pendulum Insensitive to adherence Compact light-weight construction Easy to install Calibrated for life Long and trouble-free operation Type approval from all major classification authorities To be implemented directly on any ship without additional costs += mass flow Cost-effective solution To enable mass flow measurement, only a small upgrade of your current fuel system is required. One ViscoSense®3D can be combined with multiple Flowmeters in the same fuel system, independent of configuration. Fuel consumption measurement by PT2 Flowmeters in combination with density measurement by the ViscoSense®3D is a cost-effective solution that enables mass flow measurements with highest accuracy, reliability and repeatability. Technical specification Sensor Viscosity range0-25/50 mPa.s (other ranges on request, max. 1000 mPa.s) Density range 750-1100 g/l (other ranges on request) Temperature range 0- 200°C Maximum operating temperature 180°C Temperature transmitter PT100 element Viscosity accuracy ± 2% instantaneous or 0.5 mPa.s Density accuracy ± 0.1% instantaneous or 1 g/l Temperature accuracy ± 1°C sensor material Stainless steel 316L / Ni-alloy Coating material Diamond Like Carbon (DLC) Protection class IP65 Cable length 5 m integrated Weight 1 kg Interface box Viscosity, density and temperature outputIsolated active output 4-20 mA, current loop, max. load 400? Bus Modbus over TCP/IP: all measuring data Power supply 100-230 VAC, 50-60 Hz (fluctuations should not exceed 10% of the nominal voltage) Power consumption 6 Watt Response time Depending on application Resolution 0,1 mPa.s and 1 g/l Ambient temperature -20-55 °C Humidity range 0-95% RH Protection class IP66 Mounting Wall mounting Installation category I acc. IEC 1010-10 Pollution degree I acc. IEC 664 Weight 2 kg Interface box 5 ViscoSense® HousingFor Viscotherm replacement a retrofit housing is available. Please refer to Information Bulletin 732. Housing Material Ductile iron Flange connections Standard DN50 (2”), DIN, ANSI or JIS; other sizes on request Pressure rating PN40 Weight 10 kg Diameter max. flow m 3/h DN 50 20 DN 65 34 DN 80 51 DN 100 80 Dimensions Interface box 82 1 45 120 250 24 234 82 61 n6,5 (4x) n10,5 17 50 (REQUIRED CONNECTION SPACE) 45 7 Sensor housing ØC ØEØF M 23 1500 ,5 M AX. 18 9 D N 50 ( 2 ") N x Ø D FIX ED C A BLE L E N G TH 5 m - 0 ,1 m Sensor housing for ViscoSense® DATE D RAW N C H EC KED M ATER IA L S EM I M AT.: : : : : 1 2-7 -2 0 10 F V W r D IM D RAW IN G V isc oS en se S en so r ( d im . V isc oT herm ) TH IS C O NFID EN TIA L D O CU M EN T I S T H E S O LE P R O PE R TY O F V A F I N ST R U M EN TS I T M UST N O T B E R EPR O DUCED I N A N Y M ATER IA L F O RM , O R I T S C O NTEN TS D IV U LG ED T O A T H IR D P A R TY W IT H OUT P R IO R W RIT TEN A U TH O RIZ A TIO N. D IM EN SIO NS I N m m 2 0 m m REV . 08 20-1 0 62 B B H ou sin g+ VAF lo g o 13 -4 -2 0 11 Wr A CO LU M N VA F A D D ED 25-1 -1 1 Wr R EV IS IO N R EV DESC RIP T IO N DATE PA R Ø C ØE ØF M L 150?1 20 0?1 INL ET O UTLE T 50 Ø ( 2 ") M AX. 1 7 9 E Exd M AX. 1 7 5 150 W IT H DRAW AL S PA CE FLA NGE MAX. W ORK P R ESS U RE CNx ØD E FLMV AF-NU MBER D IN DN5 0 P N4 0 40 B A R 16 5 4x1 8 12 5 102 20 3040 1-0 81 6 A NS I C LA SS 1 5 0R F 20 B A R 15 2.4 4x1 9 12 0.6 92 20 1 .6 040 1-0 81 8 J IS D N5 0 1 0K 10 B A R 15 5 4x1 9 12 0 100 20 2040 1-0 81 9 J IS D N5 0 1 6/2 0K 20 B A R 1 5 5 8x1 9 12 0 100 20 2040 1-0 82 0 N x?D 9 0 Sensor housing for Viscotherm replacement 1 All copyrights reserved PB-774-GB-0217 Quotation and ordering information 1.Basic system designation: ViscoSense®3D 2. Application: õ fuel viscosity and density measurement õ fuel viscosity control õ Viscotherm® retrofit õ ViscoSense® retrofit õ other fluid (please indicate specifications): 3. Viscosity range: õ 0 - 25 mPa.sõ 0 - 50 mPa.s õ special: 4. Density range: 750-1100 g/l 5. Flow rate [m 3/h]: 6. Nominal diameter of piping: 7. Controller type: õ electronic with viscosity control + temperature indication õ electronic with viscosity control + temperature control 8. Viscosity reading on electronic controller: õ mPa.s õ cSt 9. Flange type: õ DIN PN [bar]õ ANSI RF [lbs] õ JIS [K] 10. Optional extras: õ remote viscosity and/or density indicator õ remote viscosity and/or density indicator with alarm contacts õ remote temperature indicator õ remote temperature indicator with alarm contacts õ inspection by classification bureau bureau name: tagging of all system components: õ paper tags õ stainless steel tags 11. Control valve: actuation õ electric õ pneumatic medium õ steamõ thermal oil body material: õ ductile iron õ steel flange connections: õ DIN PN [bar]õ ANSI RF [lbs] õ JIS [K] 12. Nominal diameter of piping: 13. Inlet pressure [bar]: 14. Nominal flow rate [for steam in kg/h, liquids in m 3/h]: 15. Allowable pressure drop across valve [max. 1 bar]: 16. specific gravity of medium [water = 1,0]: VAF Instruments B.V. Vierlinghstraat 24, 3316 EL Dordrecht, The Netherlands P.O. Box 40, 3300 AA Dordrecht, The Netherlands T +31 (0) 78 618 3100, sales@vaf.nl Specifications subject to change without notice. Agents and distributors in more than 50 countries. Name: Place and date: For further information see relevant Product Bulletins or www.vaf.nl Represented by

PROPELLER, FUEL & HULL EFFICIENCY THRUST & TORQUE MEASUREMENT FUEL EFFICIENCY & MEASUREMENT VISCOSITY & DENSITY MEASUREMENT