What is the minimum leakage loss that can be quantitatively assessed and displayed in L/min using the LeakExpert app?

Under suitable measurement conditions, LeakExpert can quantitatively assess compressed-air losses from a typical order of magnitude of approximately 1 L/min.

This value is not a guaranteed or universally applicable detection limit. The minimum loss that can actually be assessed depends on factors including:

• the system pressure and the pressure difference to the surroundings,
• the type of gas,
• the size, shape, and condition of the leak,
• the measurement distance,
• the orientation of the sensor,
• reflected ultrasonic signals,
• the ultrasonic background level.

A quantitative assessment is only possible when the signal generated by the leak is sufficiently distinguishable from the background level. If the signal-to-noise ratio is too low, a reliable loss value in L/min cannot be calculated.

A distinction must be made between locating and quantitatively assessing a leak:

• A small leak may be located acoustically even though a reliable loss value cannot yet be calculated.
• A displayed loss value is an estimate based on the measured ultrasonic level and the entered operating data. It is not a direct flow measurement.

For comparable results, the measurement distance, sensor orientation, and entered system pressure should be recorded as accurately as possible.