HEYLO LSK 200 Bedienungsanleitung Seite 18

Leak Location Systems
LSK 200
Operation
Pre-locating (using test prod)
Plug the headset connector (8) into the designated socket (3). Attach the test prod. The
device is now ready for operation.
Put on the headset and use the volume control (2) to adjust the volume to the lowest
level. Only increase it as needed during locating.
Now pre-locating can start beginning from the faucets.
Precise locating (as ground microphone)
Plug the remote release (4) into the designated socket (7). Plug the headset connector
(8) into the designated socket (3). Screw extension (6) and base plate (5) together.
Screw extension (6) to device (9). The device is now ready for operation.
Put on the headset and use the volume control (2) to adjust the volume to the lowest
level. Only increase it as needed during locating.
If possible, always switch the device on using the remote release in order to prevent
hand contact noises on the device.
Locating sequence
Listening to pipes is a very old but efficient method to detect leaks. The beginnings of
the "listening box" will not be further discussed. However, the technology can be
compared to today's electro-acoustic devices.
When water is pressurized, two basic sounds are generated:
1. The pipe material and the water itself transport a structure-borne sound, which can
be recorded using microphones at the faucets or any accessible pipe locations
(more, less, no sound).
2. The water motion at the emersion point (leak) is absorbed as sound by floor or wall
covering. The sound propagation follows a bell shape. Ground microphones locate
the leak.
The leak sound propagates to both sides of the leak location and can be heard at the
adjacent contact locations using a microphone. Based on the principle "louder = closer"
and "softer = more distant" pre-locating takes place. This way the leak can be located
within one area.
Next, using the ground microphones the exact location of the leak can be detected.
18 EN