Choosing Equipment for Fuel Efficiency

If you're considering purchasing a fuel flow meter and would like to know more, contact Dan Falvey.

 

Floscan Fuel System

The Floscan system uses a turbine fuel flow sensor on both the supply and return lines for each engine to measure fuel flow. Sensors are specifically sized to match engine HP and fuel use. To reduce error caused by lift-pump pulses or tank surges, Floscan uses a cartridge filter to buffer the fuel flow.  

The 7500 and 9500 models also measure the temperature difference between the supply fuel and the return fuel. This correction is important for accuracy, especially in GM engines where temperature changes in the return line can be significant. After installation, each transducer is calibrated against a known quantity of fuel to remove remaining errors due to temperature or pulsation.

Floscan systems cost $700 to $1,500 depending on then sensor type and gauge. See the FloScan website for more information and a free price quote for the FloNet software and NMEA adapter.

Two options below: 

NMEA 2000 Interface

Commercial Marine

 

Low flow sensors:

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High flow sensors:

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Display Options

6500 Series Analog Meter

Displays gallons/hr and total gallons.

 

7500 Series Digital Meter

Allows for heat correction between supply and return line (important on GM engines), and can display engine RPM & engine hrs.

9500 Series Digital Meter

The 9500 series allows input from a GPS to display miles/gallon information. This model use NMEA 0183 input common to many older GPS units. 


Laptop + GPS + Gateway

A laptop connected to a GPS can display and log a wide variety of trip and fuel management information if it is connected using the FloNet NMEA 2000 gateway. A NMEA 0183 to NMEA 2000 adapter is available for use with older GPS units. 


Software Compatibility

It is IMPORTANT to ensure that the NMEA 2000 Gateway you purchase is compatible with the software used to monitor fuel efficiency. The “FloNet” NMEA 2000 gateway is compatible with Nobletec Catch and with Floscan's DataLog software.  Nobletec V9 and V10 are NOT compatible.

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Maretron Fuel System

Fuel Flow Sensor/Transducer

 

M1RSP-2R-E8                                       FFM 100 

 

Maretron provides NMEA 2000 based vessel monitoring systems which allow a number of sensors to feed information into a common display. Basic systems can display fuel flow. As these systems are modular, additional sensors can monitor fuel filter suction, exhaust temperature, hydraulic pressures, engine performance, fish hold temperature and many other parameters.

The fuel monitoring system uses a positive displacement fuel flow sensor on both the supply and return lines. Sensors are specifically sized to match engine HP and fuel use. All fuel passing through the sensors is captured by the rotors and moved forward.  This positive displacement approach reduces the need to buffer fuel flow against pump pulsations and tank surges. It also minimizes the need for calibration.  All Maretron sensors measure the temperature difference between the supply fuel and the return fuel for accuracy. A minimum of 75 micron fuel filter, up-stream of the sensors is required to eliminate any particles which may “jam” the rotors. The racor filters used on many vessels can meet this requirement.

Maretron sensors feed into the FFM-100 fuel flow monitor where they are output as a NMEA 2000 signal. Basic fuel flow systems cost approximately $1,700 to $2,400

Display Options

DSM250 Multi-function Color Display

The DSM 250 is a 5” X 7” display and the DSM 150 is a 3” X 5” display.  Either one can display fuel consumption and a myriad of other vessel monitoring information such as fuel filter vacuum, exhaust temp, engine room temp. oil pressure.

Adding a GPS to the DSM display allows miles/gallon information and trip planning.

As the Maretron system is based on NMEA 2000 data, a simple NMEA 200 GPS antenna can supply the needed information.

 

A laptop and GPS can display and log a wide variety of trip and fuel management information if it is connected using the IPG 100 NMEA 2000 gateway. 

Software Compatibility

It is IMPORTANT to ensure that the NMEA 2000 Gateway you purchase is compatible with the software used to monitor fuel efficiency. Maretron’s IPG 100 NMEA 2000 Gateway must be used with Maretron’s NK2View software. A more generic NMEA 2000 gateway can be used with other software such as Nobletec Catch.  

Nobletec V9 and V10 are NOT compatible.