The AVL BLOW BY METER measures the leak gas which occurs between the gaps around pistons, piston rings and valve guides. These gases enter the crankcase and leak via the crankcase breather. The volume of blow by gas has proven to be a sensitive indicator of the state of the piston rings, pistons, and cylinder walls. It is a valuable tool in both engines under development and in engines out of production and already in use. The necessity of continuous measurement of the blow by flow to monitor the engine condition make the AVL BLOW BY METER an indispensable instrument for engine testing.
This innovative and flexible device has the widest measurement range on the market and can fit seamlessly into different engine applications. Its user interface is fully embedded into our PUMA automation system and delivers intuitive operation along with quick and easy parametrization. Our BLOW BY METER also impresses with a fast testbed setup and easy integration into any automation system via CAN Bus, analogue or ethernet interface.
On the basis of the interchangeable measurement ranges between 0,2 and 2,400 l/min, the AVL BLOW BY METER 442S can be used from small-scale and single-cylinder engines up to diesel engines for ships.
| Technical Data | Unit |
|
Measurement range |
0,2 … 2,400 l/min (with different sensors) |
| Measurement uncertainty |
<= 1,5 % FSO |
| Reproducibility | 0,1 % of reading |
| Step response time | < 20 ms |
|
Maximum permissible temperature of blow-by gas |
80°C |
Temperature Compensation
If the media temperature differs from the calibration requirements, it is recommended to use temperature compensation. Standardized adapters with temperature measurement are available for this purpose. After installation, the measuring system performs the compensation automatically.
Pressure Compensation
For compensation of pressure deviations between media pressure and ambient pressure, the use of an absolute pressure sensor for compensation is possible. The compensation of the deviation is done automatically by the measuring system.
Standardized Solution for Condensate Separation
With the introduction of the standardized oil separator for AVL BLOW BY METERS, a solution can be offered that reduces the effort for maintenance and increases the stability of the measurement results at the same time.
Solution Sheet AVL BLOW BY METER
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