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│ 2 AQUAPHON system
2
AQUAPHON system
2.1
General information regarding the system
In order to use the system for leak detection, a microphone must
be connected to the A 50 receiver. The microphone picks up
noises.
If you press the Activation key on the receiver, you can hear the
noises through the headphones. The playback volume is adjust-
able. The noises are not saved.
2.2
Hearing protection
The system features a hearing protection function which protects
the user from sudden loud sound interference. This type of sound
interference can occur if a vehicle drives past or if the touch mi-
crophone slips off the contact point.
Hearing protection is activated when the predefined hearing pro
-
tection threshold is exceeded. When the noise from the source
of interference ceases, hearing protection switches off again au
-
tomatically.
The way in which hearing protection works depends on the set-
tings (section 4.5 on page 23).
Note:
Another way of protecting the hearing from loud noises is to set
the volume only as high as is absolutely necessary.
