Track Fuel Flow, Tank Fuel Used, Trip Fuel Used and Seasonal Fuel Used for a gasoline engine with the Simrad Fuel Flow Sensor, which has a 10-foot cable and comes with a T-connector for easy integration into a NMEA 2000 network.
A flow meter (or flow sensor) is an instrument used to measure linear, nonlinear, mass or volumetric flow rate of a liquid or a gas. When choosing flowmeters, one should consider such intangible factors as familiarity of plant personnel, their experience with calibration and maintenance, spare parts availability, and mean time between failure history, etc., at the particular plant site.
It is also recommended that the cost of the installation be computed only after taking these steps.One of the most common flow measurement mistakes is the reversal of this sequence: instead of selecting a sensor which will perform properly, an attempt is made to justify the use of a device because it is less expensive. Those 'inexpensive' purchases can be the most costly installations. This page will help you better understand flow meters, but you can also speak to our application engineers at anytime if you have any special flow measurement challenges.First Steps to Choose the Right Flow MeterThe first step in flow sensor selection is to determine if the flowrate information should be continuous or totalized, and whether this information is needed locally or remotely. If remotely, should the transmission be analog, digital, or shared? And, if shared, what is the required (minimum) data-update frequency? Once these questions are answered, an evaluation of the properties and flow characteristics of the process fluid, and of the piping that will accommodate the flowmeter, should take place. In order to approach this task in a systematic manner, forms have been developed, requiring that the following types of data be filled in for each application: Download the Flowmeter Evaluation Form.Fluid and flow characteristicsThe fluid and its given and its pressure, temperature, allowable pressure drop, density (or specific gravity), conductivity, viscosity (Newtonian or not?) and vapor pressure at maximum operating temperature are listed, together with an indication of how these properties might vary or interact.
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In addition, all safety or toxicity information should be provided, together with detailed data on the fluid's composition, presence of bubbles, solids (abrasive or soft, size of particles, fibers), tendency to coat, and light transmission qualities (opaque, translucent or transparent?).Pressure & Temperature RangesExpected minimum and maximum pressure and temperature values should be given in addition to the normal operating values when selecting flowmeters. Spring and Piston Flow MetersPiston-type flowmeters use an annular orifice formed by a piston and a tapered cone. The piston is held in place at the base of the cone (in the 'no flow position') by a calibrated spring. Scales are based on specific gravities of 0.84 for oil meters, and 1.0 for water meters. Their simplicity of design and the ease with which they can be equipped to transmit electrical signals has made them an economical alternative to rotameters for flowrate indication and control. Turbine Flow MetersThe turbine meter can have an accuracy of 0.5% of the reading. It is a very accurate meter and can be used for clean liquids and viscous liquids up to 100 centistokes.
A minimum of 10 pipe diameters of straight pipe on the inlet is required. The most common outputs are a sine wave or squarewave frequency but signal conditioners can be mounted on top for analog outputs and explosion proof classifications. The meters consists of a multi-bladed rotor mounted at right angles to the flow and suspended in the fluid stream on a free-running bearing. Paddlewheel SensorsOne of the most popular cost effective flowmeters for water or water like fluids.
Many are offered with flow fittings or insertions styles. These meters like the turbine meter require a minimum of 10 pipe diameters of straight pipe on the inlet and 5 on the outlet. Chemical compatibility should be verified when not using water. Sine wave and Squarewave pulse outputs are typical but transmitters are available for integral or panel mounting. The rotor of the paddlewheel sensor is perpendicular to the flow and contact only a limited cross section of the flow.
Fuel flow-meter AQUA METRO (Switzerland)DFM-system is a fuel flow-metering system, which includes:flow-meter and board computer. The system is able to identify flow on a feed line and/or return line,calculate difference between these flows and output data in readable form and also output data in readable form andprovide data for processing in systems of transmission and registration.Reliable structure as well as small size make it ideal for installation on truck and light duty vehicles,tractors, buses, construction machinery, agricultural machinery, special machinery, etc.It is widely used in remote control systems for control of fuel flow on fixed facilities (diesel-generators, liquid-fuel burners). Fuel flow-meter DFM 8 DDFM 8 D is a dual-channel, volumetric differential flow-meter, which reads both rate of direct flow to the engine and flow rate in fuel return line.Built-in electronic plate sends impulse signals corresponding with direct and return flow.Fluid-fuel meters of VZD series are usually used for diesel-fuel consumption (black oil, furnace fuel) in burners,diesel generators, on vehicles, vessels, locomotives, etc.Power supply is provided by battery installed inside. Designed life of a battery is 5 years.Pressure drop inside the device does not exceed 0,17 Bar in nominal mode, which makes it possibleto use liquid flow meter in free-flow systems, where fuel is supplied free-flow. CONTOIL VZDCONTOIL VZDNew generation flow-meter with digital display, where following parameters are displayed:.
Total fuel consumption (liters, gallons or kg/m3.). Daily fuel consumption (en-route consumption). Instant consumption (liters, gallons or kg/m3.). Fuel temperature.
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Correcting factor (for example: temperature compensation and error compensation). Stand-by time (idle run - parameters are adjusted to certain type of engine). Time of engine load running. CO2 measurement (actual and overall - estimated value). Fuel-flow sensor VZDCONTOIL VZPNew generation flow-meters without digital display with impulse output.If the meter is connected to telematic controller fuel flow parameters are sent to monitoring system serverand displayed on the monitor of a system user.DESCRIPTION OF FUEL FLOW SENSORS. Robust constructionImpulse output (standard)Brace caseProgramming of input/output impulsesTwo-line display, with 11 symbolsAutomatic sleep mode2 control buttonsData collection functionResistant to vibrations (tested up to 4 g)Built-in protective dirt filter5 years of battery operationEasy in operationStandard thread connections (M14.1,5)Password protectionSPECIFICATIONS OF FUEL FLOW SENSORS. VZO 8Liquid fuel meters of VZO 4 and VZO 8 are intended for measuring and metering diesel fuel and gasoline flow (special edition VZO 4/8V) on burners,diesel generators, vehicles, agricultural machinery and special machinery.
Standard model with mechanical rolling metering mechanism. It can be installed in any suitable place for taking readingsdownstream booster pump.
Fuel filter is installed upstream the meter.