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1 (2015-07-12 11:34:47 отредактировано Mechatronica)

Тема: How to choose fuel flow meter

It is a first question to start.

1. Decide single chamber flow meter or differential (two chambers).
Most of diesel engines have supply and return line.
So, you need either measure fuel flow in both lines or modify fuel system in such manner, so there is only supply flow must be measured.

Easiest way - measure supply and return flow with Eurosens Delta flow meters. Eurosens Delta calculates total consumption based on supply and return flow.

If you want to save a little money - you can modify fuel system and install Eurosens Direct.

How to modify fuel system - look here:

It is important that modification of fuel system in such manner can affect operation of engine, expecially when engine have modern design (Common-rail, many electronic sensors).
We can recommend to do this modification only if:
1. Engine is not performing under maximum load
2. Engine is Euro-2  or older. Don't have a lot electronic sensors which can detect error
3. You have enough experience and knowledge in diesel engine operation and design.

Typical diesel fuel system


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Re: How to choose fuel flow meter

Eurosens Delta installs in easy manner

Eurosens Delta installation


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Re: How to choose fuel flow meter

Installation scheme of Eurosens Direct with fuel supply system re-design

Eurosens Direct installation

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Re: How to choose fuel flow meter

So, if you already make a decision between Eurosens Direct and Eurosens Delta you can choose model.

1. Eurosens Direct

Max fuel consumption of engine (per hour, not per 100 km!) must be lower than flow meter index.

For example, for engine/boiler with 20, 45 and 80 liters/hour max fuel consumption you need Eurosens Direct 100

For engine/boiler with 105, 120, 200 liters/hour max you need Eurosens Direct 250


2. Eurosens Delta

Index of model means max fuel flow rate per each chamber. Problem that customer usually don't know flow rate in supply and return line. He knows only resulted fuel consumption. Ratio of supply/return/fuel consumption depends from fuel system design and fuel pump.

From our experience very approximately you can compare power of engine (in KW) with flow meter index.
For example:

40,80,95 KW - Eurosens Delta 100
120,150,250 KW - Eurosens Delta 250
300,400,500,600 KW - Eurosens Delta 500

5 (2015-07-12 12:23:48 отредактировано Mechatronica)

Re: How to choose fuel flow meter

And latest step - choose options of flow meter.

Index  P can have only Eurosens Direct. It is simpliest electronic board, with reed switches.
We recommend use PN serie instead. It has improved precision and Hall-sensors.

You need to choose interface between simple pulse output (index PN) and digital serial interface (RS232/RS485) - index RS.

RS232/RS485 interface provides not only information about fuel consumption but also fuel consumption in various operation modes (idle, nominal, overload) and time of operation in these modes. It is an advantage but this protocol must be supported by your GPS tracker vendor.

If you need built-in display - choose also index "I". That means LCD display.


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6 (2015-07-12 12:29:52 отредактировано Mechatronica)

Re: How to choose fuel flow meter

Eurosens flow meter modifications


table of models