Flow Meter for Heavy Machinery DFM Marine

Are you on a quest to crack the code of optimal fuel consumption? Worried about fuel misuse or even outright theft? Want to get granular with the operational hours of your heavy machinery, be it boats, trains, diesel generator or mining equipment?

Introducing the DFM Marine Fuel Flow Meter, your one-stop solution designed exclusively for heavy machinery. Engineered to monitor fuel flow rates up to an astonishing 4,000 Litres per hour, this state-of-the-art device seamlessly integrates into your engine’s fuel line.

From fuel consumption to engine operational times, capture it all, either through GPS tracking systems or as a stand-alone monitoring powerhouse.

Keep reading to find out how the DFM Marine Flow Meter could be the game-changer you’ve been waiting for.

Fuel Flow Measurement Redefined: The DFM Marine Flow Meter for Heavy Machinery

Discover the unparalleled precision of the DFM Marine fuel flow meter, tailored explicitly for heavy machinery. Whether it’s marine vessels, trains, mining equipment, or stationary engines like diesel generators, this model delivers accurate readings, revolutionising how you view fuel consumption.

Why the DFM Marine Flow Meter Stands Out:

  1. Versatility: It’s compatible with a wide range of liquids – diesel, heating oil, burner oil, biofuel, and other fuels boasting a kinematic viscosity of 1.5-6mm²/S.
  2. Material Excellence: At its core, the measuring chamber is crafted from brass, ensuring corrosion resistance and prolonged durability.
  3. Customisation: Tailor your DFM Marine to fit your needs. Opt between the duralumin or brass bodies and select your preferred fuel line connection, be it threaded or flange.


How it Operates: Positioned past the fine filter in the fuel line, the DFM Marine operates as a direct volumetric fuel measurement device, housing a unique ring-type measuring chamber. As the fuel pressure drives through the flow meter inlet, the ring traverses along the chamber’s inner surface, pushing the fluid out systematically. For each complete ring rotation, a volume equivalent to the chamber’s capacity is pushed out. Volume is automatically calculated by the flow meter’s electronic unit.

Integrate your results seamlessly with Fuel Monitoring, GPS Fleet, or Telematics Monitoring Systems. This synergy provides real-time data insights, making it a pivotal tool for informed decision-making.

Key Insights Delivered:

  • Fuel Consumption Metrics: Gain insights into instant fuel consumption rates, overall consumption, and consumption during different engine modes.
  • Operational Analysis: Track the total operational hours, differentiating between modes like “Idling”, “Overload”, and “Optimal”. Plus, reset counters as needed.
  • Special Features: In addition, dive deep with insights into “Tampering” and “Interference” modes, current engine operation status based on consumption, fuel temperature, battery charge, and more.
  • Diagnostics Function: Assess the flow meter’s performance, adapt settings to fuel system parameters, and access diagnostic codes and event logs for a holistic view.


Finally, enhance your experience further with the Service S6 DFM Software for PCs.  Enabling you to tweak settings for units of measurement, operational mode boundaries, and temperature correction coefficients.

DFM Marine Models

Configuration Module for DFM Marine


Autonomous Fuel Flow Meter
Autonomous Fuel Flow Meter


DFM Marine with Output Cable and Display
Output Cable and Display



Finally, harness the power of precision with the DFM Marine Flow Meter for heavy machinery. Elevate your operational insights and optimize fuel consumption like never before. Don’t wait, enquire today by contacting us!


Maximum Pressure
Flange Connection25 atm
Thread Connection16 atm
Maximum Temperature of Working Fluid95°C to 150°C*
Fluid Viscosity1.5 - 6.0mm ²/S. (CST)
Measurement Chamber MaterialBrass
Body/Connection MaterialsBrass/Duralumin **
Inaccuracy RateSee Measurement and Accuracy Table below for
Communications StandardCAN J1939/S6 + NMEA2000 Digital Interface.

RS232/485 (Protocols: Modbus and DFM COM (extended LLS) Interfaces pulse output

*Under the order

** Specified in the order

Measurement and Accuracy

DFM Marine 1000
Starting flow rate* m³/h0.01
Minimum flow rate (Qmin) m³/h0.02
Maximum flow rate (Qmax) m³/h1
Relative Accuracy Error % not more than ***±0.5**
DFM Marine 2000
Starting flow rate* m³/h0.02
Minimum flow rate (Qmin) m³/h0.04
Maximum flow rate (Qmax) m³/h2
Relative Accuracy Error % not more than ***±0.5**
DFM Marine 4000
Starting flow rate* m³/h0.04
Minimum flow rate (Qmin) m³/h0.08
Maximum flow rate (Qmax) m³/h4
Relative Accuracy Error % not more than ***±0.5**
  • *Minimum threshold flow rate value when the meter starts operating.  The value is indicated for reference only. Therefore, accuracy is not standardised for operation on the starting flow rate.
  • **In differential/summarisation measurement mode, in accuracy is not higher than ±1.0% (depending on the proportion of fuel consumption in the chamber of each flow meter used)
  • *** If fuel consumption in the range from Qmin to e-Qmin, the allowed inaccuracy is not more than ±1.0% .  Therefore, for differential/summarisation fuel consumption modes – not more than ±2.0%


Power Supply

  • Stand-alone power supply (DFM Marine C models) DFM Marine is powered from the built-in lithium-silicon battery. Estimated DFM Marine operation time until full battery discharge is not less than 36 months.
  • Combined power supply (DFM Marine CK/CCAN models) — DFM Marine is powered from the external power source or built-in battery (in case external power is off). Power supply is switched to stand-alone mode in case of low level of external power supply (less than 8 V). Estimated DFM Marine operation time in this mode is not less than 36 months.





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