Multi-Hall magnetic immunity
Multiple Hall-effect sensors and processing algorithms improve resistance to external magnetic fields.
Fuel consumption measurement
Actual Fuel Consumption.Measured Directly in the Fuel Line.
Eurosens Direct and Delta fuel flow meters for vehicles, machinery, generators, marine and industrial applications — with direct or differential measurement and telematics-ready outputs.
- 1–5,000 L/h family range
- Direct + Differential
- RS485 • MODBUS • CAN • Pulse
- −40…+85 °C
Direct · Tank → Direct → Engine (measures flow)
Delta · Supply − Return = Consumption
Choose a Fuel Meter for Your Diesel Engine
Which of these three describes your engine?
Pick your fuel system, give one number, and get a preliminary Direct, Delta or paired-Direct recommendation in under a minute.
How Fuel Consumption Is Measured
One Flow, Measured Directly — or Two Flows, Measured and Subtracted
Direct
Fuel passing through the meter is measured directly
Tank → Filter → Direct → Engine
A simple single-channel measurement story — the whole fuel flow to the engine passes through one measuring chamber.
Delta
Supply and return flows are measured separately
Consumption = Supply − Return
Electronics calculate the difference. The original fuel-supply / return circulation scheme is retained — no fuel system reconfiguration.
Eurosens Direct
One Flow. Direct Measurement.
Single-chamber fuel flow meters for diesel engines and stationary fuel consumers — from smaller engine applications to high-flow industrial equipment.
| Model | Qmin | Qnom | Qmax |
|---|---|---|---|
| Direct 100 | 1 L/h | 50 L/h | 100 L/h |
| Direct 250 | 2 L/h | 125 L/h | 250 L/h |
| Direct 500 | 5 L/h | 250 L/h | 500 L/h |
Supply
10–50 V
Accuracy
±1%
Temperature
−40…+85 °C
Protection
IP67
Interfaces
RS485 / K-Line / CAN
Eurosens Delta
Measure Supply. Measure Return. Calculate What the Engine Actually Uses.
Supply 120 L/h · 38 °C→Delta→Engine
Return 93 L/h · 57 °C←Delta←Engine
Actual consumption = 27 L/h
Installed in the existing supply and return lines — the original fuel-circulation scheme is retained
One chamber is installed in the supply line and the other in the return line. No fuel system reconfiguration is required.
Two Flows Can Have Two Different Temperatures. Delta Measures Both.
Dual-temperature compensation on both measuring channels — not a specification footnote, a core part of how Delta stays accurate.
Range
10–500 L/h
Accuracy
±1%
Temperature
−40…+85 °C
Interfaces
RS485 / CAN J1939
Warranty
2 years
Where the return line contains air or foam, installation may require Eurosens Deaerator ahead of the return chamber.
Help Me Choose a Delta ModelWhy Eurosens?
Engineering Differentiators, Not Just a Spec Sheet
Tamper detection
Attempts to interfere with the meter can be detected and recorded.
Abnormal flow detection
Excessively high flow conditions can be accumulated in a dedicated counter.
Electronic flow direction
Electronic flow-direction detection removes the need for a separate check valve for this purpose.
Low hydraulic resistance
Designed for installation within the engine fuel-system pressure requirements.
Built for harsh environments
Automotive connector, hardened alloy body, antifriction-coated measuring chambers.
More Than a Fuel Counter
Fuel Consumption by Operating Mode
Configurable thresholds let the meter classify operation and accumulate fuel and runtime data for different modes — not just a totalizer.
CURRENT CONSUMPTION37.4 L/h
ENGINE MODENOMINAL
ENGINE RUNTIME1,284 h
IDLE FUEL1,920 L
SUPPLY (DELTA)141.3 L/h
RETURN (DELTA)103.9 L/h
MAGNETIC INTERFERENCENO
- IDLE
Low-load / idle consumption and runtime
- NOMINAL
Normal operating region
- OVERLOAD
Higher-than-normal operating flow
- ABNORMAL / TAMPERING
Flow above the configured abnormal threshold
Total fuel volume, instantaneous consumption, mode-split runtime, reverse-flow data where supported, and magnetic-interference time — all from one measurement platform.
Applications
Where Eurosens Fuel Meters Are Used
- Trucks & buses
- Construction & mining
- Agriculture
- Diesel generators
- Marine & river vessels
- Boilers & burners
- Industrial equipment
Real Installations
Proven on Real Engines
Authentic Eurosens installation photography — the meter and its fuel-line routing are visible, not just the equipment around it.
Truck — engine bay installation
- Engine
- Electronically controlled diesel, light/medium commercial vehicle
- Fuel system
- Electronically controlled
- Configuration
- Eurosens Direct CAN 250
- Interface
- CAN
Installed directly in the fuel line ahead of the injection system, mounted on the chassis bracket next to the fuel filter.
Marine auxiliary engine — Yanmar
- Engine
- Yanmar marine diesel, auxiliary / genset duty
- Fuel system
- Supply / return fuel-circulation scheme, unchanged
- Configuration
- Eurosens Delta CAN
- Interface
- CAN
Differential measurement installed without rerouting the original supply and return lines — the marine installation Eurosens Delta was designed for.
More installation cases (construction / mining, agriculture, diesel generator, high-power > 800 kW, boiler / burner, stationary industrial engine) are being added to this portfolio as photography is approved for publication.
Tell Us Your Engine — We'll Recommend the Installation SchemeInstallation
Select. Install. Verify.
- 01Select the configuration by engine scenario
- 02Install in the fuel line using the approved scheme
- 03Connect, configure and verify with Eurosens service tools
Keep the original fuel circulation principle: for Delta, the supply chamber is installed in the feed line and the return chamber in the return line — fuel consumption is calculated from the difference, without rerouting the normal return flow. Where the return line contains air or foam, the installation may require Eurosens Deaerator.
Connect to Your System
Connect Eurosens to the Telematics Ecosystem You Already Use
PulseRS485MODBUS RTUCAN SAE J1939NMEA 2000K-Line / service
GPS Tracker Manufacturers
TeltonikaQueclinkJimi IoT (Concox)RuptelaST SUNLAB (Suntech)Sensata / XirgoTOPFLYtechNavtelecomGalileoskyCalAmp
Telematics Platforms
WialonGeotabSamsaraWebfleetPowerfleetMotiveNavixyGpsGateTraccarflespi
Designed for integration with leading telematics ecosystems. Compatibility depends on the tracker model, available interface and firmware — send us your device model and we will confirm the connection scheme.
Trust
Certifications & Warranty
E-mark / UNECE R10
TR CU 018/2011
TR CU 020/2011
Measuring instrument approval — Russia
Measuring instrument approval — Belarus
Measuring instrument approval — Kazakhstan
Certificate applicability depends on the exact model and destination market — do not assume every certificate applies to every modification.
Designed to Be Maintained, Not Discarded
Field diagnostics and configuration software, service / cleaning documentation, an accuracy-check procedure, firmware updates where supported, and CAD / engineering drawings for integration.
Documentation Center
Everything an Engineer Needs to Evaluate the System
FAQ
Questions from Integrators and Fleets
Direct measures the whole fuel flow to the engine directly in one chamber. Delta measures supply and return flow separately and calculates the difference, without changing the original fuel-circulation scheme.
Final step
Get Model Selection & Price
Tell us the engine scenario and application — Eurosens engineering confirms the correct measurement scheme and meter.
I do not need to understand every model myself.