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 Locating
plastic pipes acoustically
The System COMBIPHON® consists of the central
control unit generator G5 and different pulse
generators.
As plastic pipes are not electrically conductive,
they cannot be located with the classic electro-magnetical
method. Another principle in pipe location is
used with the acoustic method: the pipes transmit
mechanical vibrations better than the it surrounding
soil. The vibrations are transmitted along the
pipe and over the soil to the surface where
they can be detected by a microphone (AQUAPHON®).
Just as with the acoustic location of water
leaks, indicates the highest intensity the position
of the pipe. Basically AC or metallic pipes
can also be located with this method.
 Service
pipes - water
are
set vibrating by the knocker. It knocks just
as an electrical hammer from the outside onto
the pipe. Chain fastening for diameters up to
3.94 in, weight: 3.96 pound.
 Main
pipes - water
require
more energy to be set vibrating. The water column
is set into motion by extraction of water from
a hydrant. The water column is restricted in
intervals by a shutoff device, the stopper.
The created pressure waves transmit and can
be located, even over long distances.
Radio
control of generator G5.
When
e. g. locating a service pipe, it is not necessary
for the user to go back to the point of coupling
to modify the intensity. This is necessary as
it is impossible to work with high intensity
near house walls (contamination of sound), but
more power is required on longer distances.
Transmitting ranges of approx. 30 m from the
cellar and up to 300 m on the outside are possible.
Technical
data of generator G5
Power
supply: built-in lead accu, optional 12
V adapter or 12 V car battery
Operating time: with the Knocker, between
5 – 80 h (depending on intensity)
Operating temperature: 14 °F up to 122
°F
Protection class: spray protection according
to IP 54 (without adapter)
Dimensions (W x H x D): 23.62 x 7.48
x 8.27 in (compartment for knocker and adapter,
car adapter L)
Weight: approx. 13.89 pound with adapter
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