dfm

DFM Diesel Flow Meter

Diposkan pada Februari 16, 2015Juni 13, 2017 oleh Yugo Nugroho Boyolali

Fuel flow meter DFM is designed for diesel fuel consumptionmeasuring in the fuel line of the following vehicles:

trucks;
tractive vehicles;
tractors of various types;
loaders;
graders;
road-building machinery;
boilers;
boats;
burners;
technological transport;
fixed installations with diesel engines etc.

Inline fuel meter DFM can be applied for fuel accounting both autonomously and as a part of vehicle tracking and fuel monitoring system.
Fuel gauge DFM allows to solve the following tasks:

fuel consumption control;
fuel consumption rationing;
fuel theft detecting and preventing;
fuel comsumption optimization and real-time monitoring;
engine fuel consumption testing.

Fuel meter DFM enables to receive objective information about actual fuel consumptionand vehicle working time. It also permits to reduce fuel and repairing costs. It is possible to develop fuel consumption rates for selected routes and technological operations.

The economic effect of using the fuel accounting devices is different at various companies, usually about 10 to 40%, depending on the baseline situation and management persistence

DFM models designation

DFM models choice for internal combustion engine/boiler

Fuelflow meters models designation for the ordering

Engine power, kW	Boiler heat productivity, kW	Recommended inline fuel meters	Recommended mounting kits
under 80	under 400	DFM 50	№ 2
80-150	400-800	DFM 90, DFM 100	№ 2
150-300	800-1500	DFM 220, DFM 250	№ 4
300-500	1500-3500	DFM 400	№ 4

Operating principle

Fuel gauge DFM has three-dimension ring type measuring chamber. DFМ generates an impulse, when the volume of fuel (which is equal to volume of the measuring chamber) passes through it.

Measured fluids

Fuel flow meter DFМ can be used for consumption measuring of the following fluids:diesel fuel;

heating oil;
engine oil;
other types of liquids with kinematic viscosity from 1.5 to 6 mm2/sec*.

Application for more viscous liquids is also possible, but the maximum consumption may get less than critical and the pressure on the meter gets down. All the meters DFM are tested with diesel fuel. Please specify the fuel type and viscosity in your order.
The materials resistant to gasoline are used for DFМ manufacturing. Use safety means in accordance with the national laws when working with gasoline.

Features

protection against unauthorized interference and tampering with the meter;
resistant to vibration and hydraulic impacts;
big in-built mud filter;
meets road standards of electromagnetic compatibility, mechanical and climatic influences;
durable and precise measurement zinc-aluminum chamber;
full set of mounting accessories;
all the fuel flow meters DFM are tested on the metrologically certified installation when produced.

Specification

Connecting thread		M14x1.5
Nominal pressure, MPa		0.2
MAX pressure, MPa		2.5
Supply voltage, V		10-50
Overvoltage protection, V		≤100
Current consumption, mA		≤25 (24 V) ≤50 (12 V)
Operating temperature, °C		without display: from -40 to +80; with display: from -20 to +60

Mounting

Fuel meters DFМ are mounted into fuel line of vehicles according to approved installation schemes. Fuel pipe and mounting kit can be additionally included in delivery package.
We strongly recommend to seal pipe connections after the fuel flow meter output.

To get the detailed information about fuel gauges DFМ installation please contact to Technical Support.

Fuel flow meter DFМ installation scheme before pump		Fuel flow meter DFМ installation scheme after pump

Measurement scope and accuracy

Model	The nominal bore	Start-up consumption, l/h	MIN flow rate, l/h	MAX flow rate, l/h	Inaccuracy, ±%
DFМ 50 AK, B, C, CK	6	0.5	1	50	1
DFМ 90 AP	6	0.5	3	90	2
DFМ 100 AK, B, C, CK	6	0.5	2	100	1
DFМ 220 AP	8	2	8	220	2
DFМ 250 AK, C, CK	8	2	5	250	1
DFМ 400 AK, C, CK	10	20	30	400	2

DFM-AK

DFM-C

DFM-CK

DFM-D

DFM-i

DFM Fuel Flow meters Component

Diposkan pada Desember 11, 2011 oleh Yugo Nugroho Boyolali

Fuel Flow Meters
Diesel Flow Meters
DFM Flow Meter

Designed to measure the flow in the fuel line of engine. Produced as one-way (direct) fuel flow meters, and differential fuel flow meters. There are versions for different ranges of fuel consumption. Compatibility requirements: terminal of vehicle tracking system should have one or two frequency inputs.

In most cases a consumer impressions about the material of a product are based on his own experience and knowledge. Such a conclusions may result an erroneous opinion about the reliability and durability of a product.

In this article we will talk about the materials used in the manufacture of DFM flow meters components and their characteristics.

*The measuring chamber case*
	The case of DFМ measuring chamber is made from Zinc-Aluminum-Copper alloy (known as Zamak), contrary to popular opinion that it made of aluminum. Zinc quota is about 96% in alloys structure. Zamak alloys are used in the automotive industry for responsible parts manufacturing: carburetors body casting, pumps, speedometer frames, radiator grills and hydraulic brake parts. One of the main alloy features is the processing compliance by metal-cutting tools that allows reaching high precision accuracy of responsible details processing to observe strict requirements of the design documentation. Zamak alloy products get glaze in the air forming a thin dense oxide coat over, which protects the metal from further oxidation. The density of the alloy is about 7000 kg/m3, melting temperature is 380 °C, hardness is 80-90 HB (for comparison soft brass 50-60 HB, solid 100-120 HB). Zinc-aluminum alloys possess high antifriction properties and are often used as a substitute for bronze in friction knots. Zamak alloy is well suited for automotive fuel flow meters and determines such qualities of DFM flow meter as: accuracy; stability to deterioration; low weight; manufacturability in production. In the manufacturing process measuring chamber body is molded under pressure, and then, after the testing for leakproofness, is exposed to machining on high-precision tools with numerical programmed control.
*Intermediate and upper cover*
	The intermediate cover, closing flow meter measuring chamber, as well as the top cover also is made of Zamak alloy.
*Ring*
	The ring should be light and durable as much as possible, therefore it is made of aluminum and covered by a wear-resistant anoxia covering – colorless or painted golden.
*Partition of the measuring chamber*
	The partition of the measuring chamber is designed as guiding for the ring, for this reason its considerable deterioration is not allowed. Therefore the partition is made of solid stainless steel.
*The sealing ring*
	The sealing ring made of oil-petrol-resistant rubber is applied to ensure leakproofness of the measuring chamber. It is resistant to the aggressive operating environment.
*Bracket*
	DFМ mounting bracket should be not only reliable but also be upgradeable by the installation place. Brackets are made of steel to realize the possibility of cutting, bending and welding.
*Electronic components*
	Original components of industrial temperature range (-40 to +85 °C) of the leading manufacturers of Microchip, Sumida, Ipcos and other are used in fuel flow meters DFМ.
*Battery*
	Lithium-silicon battery by French company Saft (specially developed for automotive use) provides uninterrupted flow meter operation up to 2 years even in the severe conditions.

Epilogue…

Application of high-quality materials, design and efficient technology of manufacturing is the result of long-term working out and research of Тechnoton together with the leading manufactures of Belarus and Europe. This fact guarantees high accuracy, reliability and durability of fuel flow meters DFМ.

Fuel Flow Counter ; fuel monitoring

Diposkan pada Desember 11, 2011 oleh Yugo Nugroho Boyolali

DFМ autonomous fuel flow counter. Simple solution for fuel monitoring.

Autonomous fuel counter DFМ is a simple solution for fuel consumption control.

Fuel counter DFМ can be used to create a fleet fuel consumption accounting system.

Fuel flow counter DFМ represents information on the LCD display. Fuel consumption indications control and fixation are made visually by a responsible person with entering dаta to report.

SIMPLE SOLUTION FOR FUEL MONITORING

Application

It is supposed to use GPS trackers to organize the fuel consumption accounting system in a company. The application of DFМ counters is a simpler and cheaper way to do it. The fuel consumption accounting system based on the autonomous fuel counter DFМ is easy to install and maintenance. There is no need any additional costs for hardware and software.

Fuel flow counter DFМ is powered by built-in battery. Its resources are enough for more than 24 months of the device continuous operation. The fuel counter DFМ has no buttons – switching on the display is made with a special magnetic key.

Autonomous_fuel_counter_DFM_standby_mode

Autonomous_fuel_counter_DFM_working_mode

The special form to be filled out by a responsible person for fuel control.

Features

The unique tampering and intervention protection functions of fuel counter DFМ allow using it in companies, where the chances of vandalism and discredit from some drivers are high.
If somebody will try to blow DFМ with the air, the air volume passed through the device would not considered in the counter of consumed fuel, but will get into special counter called “Tampering”.
The counter “Interference time” will protect from attempts to influence the device with a magnet. It registers the duration of exposure to the device with the magnetic field.
Along with the fuel monitoring function counters DFM have a function of engine operating time control (DFМ C model ). This functionality is very useful for some kinds of machines.

Controlled parameters

Instant fuel consumption, l/h
Total fuel consumption, l
“Overflow” counter, l
Total engine operating time, h*
Engine operating time in “idling” mode, h*
Engine operating time in “optimal” mode, h*
Engine operating time in “overload” mode, h*

* – these counters are accessible in “C” version only.
Display indications: fuel consumption counter.

Counter name	Units of measurement
Total fuel consumption	liter
Total fuel consumption with the increased accuracy	liter

Display indications: time counter (DFМ C only)

Counter name	Units of measurement
Total engine (Consumer) working time	hour
Working time of the Consumer in “Idling” mode	hour
Working time of the Consumer in “Optimal” mode	hour
Working time of the Consumer in “Overload” mode	hour

Display indications: tampering and interference counters

Counter name	Units of measurement
Fuel consumption in “Tamper” mode	liter
Time of interference	hour

Display indications: Parameters

Counter name	Units of measurement
Instant fuel consumption	liter/hour
Measuring chamber temperature	°С

Fuel flow meters DFМ

Diposkan pada Desember 11, 2011 oleh Yugo Nugroho Boyolali

Diesel Flow Meter
Fuel Engine Flow Meter

Fuel flow meters DFМ. Actual fuel consumption Measuring

Fuel flow meter DFМ is designed for diesel fuel consumption measuring in the fuel line of the following vehicles:

trucks;
tractive vehicles;
tractors of various types;
loaders;
graders;
road-building machinery;
boilers;
boats;
burners;
technological transport;
fixed installations with diesel engines etc.

Inline fuel meter DFМ can be applied for fuel accounting both autonomously and as a part of vehicle tracking and fuel monitoring system.Fuel gauge DFM allows to solve the following tasks:

fuel consumption control;
fuel consumption rationing;
fuel theft detecting and preventing;
fuel comsumption optimization and real-time monitoring;
engine fuel consumption testing.

Fuel meter DFМ enables to receive objective information about actual fuel consumption and vehicle working time. It also permits to reduce fuel and repairing costs. It is possible to develop fuel consumption rates for selected routes and technological operations.

The economic effect of using the fuel accounting devices is different at various companies, usually about 10 to 40%, depending on the baseline situation and management persistence.

Operating principle

Fuel gauge DFM has three-dimension ring type measuring chamber. DFМ generates an impulse, when the volume of fuel (which is equal to volume of the measuring chamber) passes through it. For detailed operating principle for every DFM model please visit product pages.

Measured fluids
Fuel flow meter DFМ can be used for consumption measuring of the following fluids:

Diesel fuel
Fuel Oil
Heating oil
Engine oil

Other types of liquids with kinematic viscosity from 1.5 to 6 mm2/sec*.
* Application for more viscous liquids is also possible, but the maximum consumption may get less than critical and the pressure on the meter gets down.
* All the meters DFM are tested with diesel fuel.
* Please specify the fuel type and viscosity in your order.
* The materials resistant to gasoline are used for DFМ manufacturing.
* Use safety means in accordance with the national laws when working with gasoline.

Features

Protection against unauthorized interference and tampering with the meter
Resistant to vibration and hydraulic impacts
Big in-built mud filter
Meets road standards of electromagnetic compatibility, mechanical and climatic influences
Durable and precise measurement zinc-aluminum chamber
Full set of mounting accessories
All the fuel flow meters DFM are tested on the metrologically certified installation when produced.

Specification

Connecting thread : M14x1.5
Nominal pressure, MPa : 0.2
MAX pressure, MPa : 2.5
Supply voltage, V : 10-50
Overvoltage protection, V : ≤100
Current consumption, mA : ≤25 (24 V) and ≤50 (12 V)
Operating temperature, °C : -40 to +80 and -20 to +60 ( with display: )

Installation

Fuel meters DFМ are mounted into fuel line of vehicles according to approved installation schemes. Fuel pipe and mounting kit can be additionally included in delivery package. We strongly recommend to seal pipe connections after the fuel flow meter output. To get the detailed information about fuel gauges DFМ installation please contact to Technical Support.

Installation scheme before pump		Installation scheme after pump

Measurement scope and accuracy

Model	Bore Size	Consumption	Flow Rate (l/h)		Inaccuracy
Model	Bore Size	l/h	Min	Max	±%
DFМ 50 AK, B, C, CK	6	0.5	1	50	1
DFМ 90 AP	6	0.5	3	90	2
DFМ 100 AK, B, C, CK	6	0.5	2	100	1
DFМ 220 AP	8	2	8	220	2
DFМ 250 AK, C, CK	8	2	5	250	1
DFМ 400 AK, C, CK	10	20	30	400	2

Ordering information
The range of DFМ devices includes the following models :

Autonomous fuel flow meter with display (fuel counter)
Fuel flowmeter with pulse interface
Differential fuel flow meter

DFM models choice for internal combustion engine/boiler

Engine power	Boiler heat	Recommended	Recommended
( KW )	productivity, kW	inline fuel meters	mounting kits
under 80	under 400	DFM 50	№ 2
80-150	400-800	DFM 90,	№ 2
80-150	400-800	DFM 100	№ 2
150-300	800-1500	DFM 220,	№ 4
150-300	800-1500	DFM 250	№ 4
300-500	1500-3500	DFM 400	№ 4