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The flow of fuel DFM - measurement of fuel consumption and operating time of motor vehicles

The flow of fuel DFM designed to measure the consumption of diesel fuel in the fuel rail vehicles and components in the composition of the monitoring systems of transport.

The flow of fuel DFM effectively solve tasks:

control of fuel consumption,

time control engine operation in different modes:

idling,

the optimal mode,

overload,

condition monitoring of the fuel system.

 

Датчик расхода топлива DFM
 
 Дифференциальный расходомер топлива DFMАвтономный счетчик топлива DFMРасходомер топлива DFM Датчик расхода топлива DFM

The flow of fuel DFM intended for measuring fuel consumption and operating time of the various consumers of fuel:
trucks;
tractors;
tractors of various types;
loaders;
graders;
technological transport;
locomotives;
river vessels;
burners;
boilers;
diesel generators;
other mobile and fixed installations with diesel engine.

Виды техники, на которые устанавливаются расходомеры топлива DFM

Оperating principle


Fuel flow meter DFM has a volumetric measuring chamber ring type. The sensor generates a pulse when the flow volume of fuel equal to the volume of the measuring chamber. The number of pulses generated by the sensor when the flow through 1 liter of fuel, is marked on the wiring harness of the sensor and is indicated in the passport of the product.

Advantages of flow of fuel DFM


Implementation of DFM helps to solve the following tasks:

  • the actual fuel consumption;
  • the actual operating time of machinery;
  • rationing of fuel consumption;
  • prevention and detection of theft of fuel;
  • the real-time monitoring and optimization of fuel consumption;
  • test engines in terms of fuel consumption.

Many years of experience in the application of metering fuel to the automobile companies in different industries showed that the economic effect of implementation varies from 10 to 40 % depending on the neglect of the original situation and persistence management.

  • protection against unauthorized interference and "cheating";
  • minimum flow resistance;
  • large mud filter;
  • according to automotive standards, electromagnetic compatibility, mechanical and climatic influences: STB ISO 7637-2, STB ISO 7637-3, GOST 30378, GOST 3940, GOST 28751, GOST 29157, GOST R 50607;
  • durable and accurate measuring chamber;
  • a complete set of mounting accessories;
  • 100% verification on metrologically certified heavy installation.

Measured fluid


The fuel sensors DFM can be used to measure the flow of the following liquids:

diesel fuel;

heating oil;

other liquids with a kinematic viscosity of from 1.5 to 6 mm square/S.*

* Application for more viscous liquids, it is also possible, but the maximum flow rate may be less regulated, and the pressure drop on the gauge. All flow sensors are checked on diesel fuel. Be sure to specify fuel type and viscosity when ordering.


Is it possible to deceive fuel flow meter DFM?


The flow of fuel DFM allow them to detect the theft of fuel. The sensor is mounted directly in the fuel line of the vehicle. It is protected from fraud and vandalism. The driver will not be able to quietly affect the operation of the flow meter!

 Sturdy metal housing with a flow of fuel DFM - reliable protection from dust and dirt, and from attempts to withdraw from the sensor system.

Protection from exposure to even a strong magnet. When the electromagnetic influence of the flow meter registers the duration of exposure in a special counter "Time of intervention.

The air purge useless! With the increased fuel consumption DFM detects interference in the counter Fraud".

High battery life. The flow of fuel DFM can work from the built-in battery for up to two years. While disconnected from the electrical system, the meter records the data in its own memory.

Sealing of the flow meter and fuel system components.


Specifications


 
Присоединительная резьба M14x1.5
Номинальное давление, МПа 0,2
Mаксимальное давление, MПа 2,5
Диапазон напряжения, В 10-50
Защита от перегрузок, В ?100
Ток потребления, мА ?25 (24 В)
?50 (12 В)
Температура окружающей среды, °C без дисплея: от -40 до +80;
с дисплеем: от -20 до +60
Степень защиты корпуса IP54
 

Installations


The flow of fuel DFM is installed in the fuel systems of motor vehicles in accordance with the developed circuit.

 DFM - установка по схеме на разрежение
Схема установки расходомера топлива DFM "на разрежение"

DFM - установка по схеме на давление
Схема установки расходомера топлива DFM "на давление"

Дифференциальная схема установки расходомеров топлива DFM "на разрежение"
Дифференциальная схема установки расходомеров топлива DFM "на разрежение"

Дифференциальная схема установки расходомеров топлива DFM "на давление"
Дифференциальная схема установки расходомеров топлива DFM "на давление"

 

 

Measuring range and accuracy of single-chamber restorerow.


 
Модель ДУ Стартовый расход,
л/ч
Минимальный расход,
л/ч
Максимальный расход,
л/ч
Погрешность,
±%
Ресурс
измерительной камеры, л
DFM 50 AK, B, C, CK 6 0,5 1 50 1 70000
DFM 90 AP 6 0,5 3 90 2 70000
DFM 100 AK, B, C, CK 6 0,5 2 100 1 70000
DFM 220 AP 8 2 8 220 2 175000
DFM 250 AK, B, C, CK 8 2 5 250 1 175000
DFM 500 AK, C, CK 12 5 10 500 1 350000
 

The measurement range and the accuracy of the flow meters with two camerani.


 
Модель Количество
импульсов
на литр
Объем
каждой камеры,
мл
MIN расход
в каждой камере, л/ч
MAX расход
в каждой камере, л/ч
DFM 100D 200 5 10 100
DFM 250D 80 12,5 25 250
DFM 500D 50 20 100 500
 

Измеряемые жидкости


 

The measured fluid fuel flow sensors DFM flow measurement can be used for the following liquids: diesel; heating oil; other types of liquid fuels with kinematic viscosity of 1.5 to 6 mm sq/a. * * Use for more viscous fluids are also possible but maximum flow can be less than normiruemogo, and pressure drop in a gauge-more. All sensors are calibrated flow rate with diesel fuel. It is necessary to specify the type of fuel and viscosity when ordering.


Can I fool, fuel flow meter DFM?


Fuel flow meter DFM to timely detect theft of fuel. The sensor is installed directly in the fuel line of the car. It is protected by anti-cheat and vandalism. The driver will not be able to invisibly affect the flow meter! Sturdy metal housing, fuel flow meter DFM-reliable protection from dust and dirt, and from attempting to display the sensor failure. Protection from exposure to even a strong magnet. When the electromagnetic impact flow meter registers the duration of exposure in a special "time counter intervention". Purging air is useless! With the increased fuel consumption of DFM records the interference in the counter "Wrapping". High battery life. Fuel flow meter DFM can work from the built-in battery for up to two years. During the trip from the onboard network meter writes data in its own memory. Sealing of the flowmeter and elements of the fuel system. The driver will not be able to intervene in the fuel system of the vehicle without damaging the seals!

Specifications


 
Присоединительная резьба M14x1.5
Номинальное давление, МПа 0,2
Mаксимальное давление, MПа 2,5
Диапазон напряжения, В 10-50
Защита от перегрузок, В ?100
Ток потребления, мА ?25 (24 В)
?50 (12 В)
Температура окружающей среды, °C без дисплея: от -40 до +80;
с дисплеем: от -20 до +60
Степень защиты корпуса IP54

Installation


Fuel flow meter DFM are installed in vehicle fuel system in accordance with the installation diagrams.

 DFM - установка по схеме на разрежение
Схема установки расходомера топлива DFM "на разрежение"

DFM - установка по схеме на давление
Схема установки расходомера топлива DFM "на давление"

Дифференциальная схема установки расходомеров топлива DFM "на разрежение"
Дифференциальная схема установки расходомеров топлива DFM "на разрежение"

Дифференциальная схема установки расходомеров топлива DFM "на давление"
Дифференциальная схема установки расходомеров топлива DFM "на давление"
 

 

Measuring range and accuracy of single-chamber flow


 
Модель ДУ Стартовый расход,
л/ч
Минимальный расход,
л/ч
Максимальный расход,
л/ч
Погрешность,
±%
Ресурс
измерительной камеры, л
DFM 50 AK, B, C, CK 6 0,5 1 50 1 70000
DFM 90 AP 6 0,5 3 90 2 70000
DFM 100 AK, B, C, CK 6 0,5 2 100 1 70000
DFM 220 AP 8 2 8 220 2 175000
DFM 250 AK, B, C, CK 8 2 5 250 1 175000
DFM 500 AK, C, CK 12 5 10 500 1 350000
 

Measuring range and accuracy of the flow meters with two cameras


 
Модель Количество
импульсов
на литр
Объем
каждой камеры,
мл
MIN расход
в каждой камере, л/ч
MAX расход
в каждой камере, л/ч
DFM 100D 200 5 10 100
DFM 250D 80 12,5 25 250
DFM 500D 50 20 100 500