Beko METPOINT CID Quick Start Manual page 24

METPOINT ® CID
Pinpointing leaks can be made much easier by reducing the sensitivity and especially by using the
parabolic mirror (for long distances) and the gooseneck (for short distances).
Very large leaks: Very large leaks will produce a strong ultrasonic field that can generate ultrasound
throughout the entire room under certain circumstances. In this case, it is also recommended to
reduce the sensitivity and closely scan the individual components. Within this context, leaks should
be pinpointed based on the volume level of the loudest point.
If the leak is not accessible, it is recommended to use the parabolic mirror, as it has excellent
directivity.
Lamps and motors:
Noise: Electrical buzzing -> Do not confuse for leaks!
Some systems and machines can also produce ultrasound that falls within a similar frequency range,
e.g., neon tubes and motors. However, these usually sound different from the typical "hissing" of
leaks and should not be confused with them.
If you can hear ultrasound that is clearly not coming from the compressed air system, then reduce
the device's sensitivity in order to "suppress" it. If this is not enough, then you will have to ignore
the noise.
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Overlapping leaks: If leaks are physically close to each
other, the ultrasound they emit will overlap. In this case, it is
recommended to "seal off" the leaks with a piece of cloth. This
will increase the accuracy of the measurement enormously,
especially when quantifying the leak. At the same time,
you should be measuring physically very closely to the
components.
Quick Start Guide