AVL Fuel Balance and Fuel Temperature Control

The combination of AVL Fuel Balance and AVL Fuel Temperature Control is a highly precise fuel consumption measurement and conditioning system.


AVL Approach

Combined with the AVL Fuel Temperature Control, the AVL Fuel Balance measures the fuel consumption of engine- and chassis dyno testbeds for transient and steady state measurement where highly accurate temperature control of fuel is needed.

Benefits at a Glance

  • Time-saving ISO9001 testing due to calibration within a few minutes
  • Universal measurement system for different injection systems and engine sizes
  • Minimization of testbed times due to high reliability and long maintenance intervals
  • Easy and fast integration into the engine testbed due to compatible interfaces
  • Direct determination of the fuel mass

Technical Data

AVL Fuel Balance and Fuel Temperature Control

Technical Details AVL Fuel Balance and Fuel Temperature Control
Type: AVL 733S/753C
Measurement principle: Gravimetric
Measurement ranges:

0 … 150 kg/h
Measurement uncertainty: 

≤ 0.12% (acc. to DIN 1319) 
Interfaces / output signal: RS232, analog I/O,0 … 10 V
digital I/O 
Measurement frequency: 10 Hz (max.)
Response time: < 440 ms
Fuel types: Standard*) and 100% bio fuels
Engine feed pressure: < 0 … 600 kPa
Fuel circulation quantities: Optionally 240/450/540 l/h
Control range: 10 … 80° C
Stability: Better than 0.02° C
Heating / cooling: 1.6 kW / 1.6 kW
Power supply: 230 V, 50 Hz, 220 V, 60 Hz
100 V, 50–60 Hz, 115 V,
60 Hz
Power consumption: 0.4 kW (without heating)
Ambient temperature: 5 … 50° C
Dimensions (W x H x D): 770 x 1,350 x 345 mm

 *) With max. 20% alcohol and up to 10% bio diesel

Measuring Principle

AVL FUEL BALANCE measurement principle
The fuel consumed by the engine is taken from a continuously weighted measurement vessel with all the properties of the vehicle tank.

The detection of the weight of the fuel is implemented with a capacitive displacement sensor that is connected to the measurement vessel by means of a beam.

A calibration weight is used to perform the accuracy testing and calibration procedures in accordance with ISO9001.

The calibration is implemented in a fully automatic manner within a few minutes and is integrated by default in the AVL Fuel Balance.