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As much as we depend on computers today, machines
have one major drawback: they can't think.
In the world of dredging, that's where the Electrotechnical Department
of DAMEN DREDGING EQUIPMENT comes in.
The Electrotechnical Department develops, designs and builds measuring
and control instruments which provide operators with vital information
about the dredging process.
Our creativity and expertise are guided by continuous client input,
which leads to custom-made instrumentation systems.
Datasheets are available for several products
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All datasheets are in the Adobe PDF format. To view this format you need
the Adobe Acrobat Reader 4 or higher.
Instrumentation products:
Production measurement, existing of:
 density meter
velocity meter
yield indicator
For detailed information see the datasheet
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Production measurement
A small PLC with touch screen has been developed for the production
measurement.
The 2 analog signals from the density gauge and flow meter are
interfaced to the PLC, to calculate the production, dependent on the
pipe diameter.
The result is given on the touch screen.
The production can be given in T or m3 per sec. or hour.
The mixture production can be given, the material in situ (reclamation
area/bottom), when the s.g. in situ is known, or Ton Dry Material (TDS).
The production is given on a day- or total counter.
Trailing suction pipe instruments displayed on one computer screen, such
as:
Vessel draught
Load and Draught
Suction Tube Position Indicator
Electronic Monitoring System (EMS/TDS)
A EMS (TDS) software package for logging and registration of positions
and processdata on-board trailing suction hopper dredgers, as required
by the authorities nowadays.
Beside datalogging various calculations can be done, such as Tons Dry
Material (Stof) which has become the trade name for this package (TDS).
The stored data is also visualised on a monitor, giving the crew the
posibility to check what is going on.
Beside data storing, there is the posibility to transmit the data by a
cellular telephone to the shore, to the authorities and to the office.
Telemetry
A Remote Control (Telemetry) software package for remote control of
dredging equipment (most time a Booster station) and surveillance.
A choice of engines and motors can be started or stopped and speed
controlled. In opposit direction, process- and equipment (status) data
are transmitted for surveillance purposes.
The link can be by radio or fiber optics. For the radio there are
several solutions, depending on the range and pairing to this the
requirement for a license.
For detailed information see the datasheet
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Survey system
There are a lot of possibilities, to compose a "Survey system".
The required accuracy and with that the price for the system is
qualifying the system, but also the requested detailed position
information of several instruments on-board.
Is either only the horizontal position of the vessel enough or
additionally also the depth of the suctionhead.
The NAVGUARD software application package consists of modules for
visualisation on board the dredger, for calculation and plotting at the
office and for gathering hydrografic data.
Damen Dredging Equipment has published a datasheet which described all
the possibilities
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Excavator/dredger positioning system
The Excavator/dredger positioning system, combined with DDE "Navguard"
software and the required sensors, provides the operator with the
position and depth of the bucket/dredge head relative to the actual and
required depth. The data is displayed on a monitor in the operator
cabin.
Positioning and depth are displayed with an accuracy of a sub-meter (<
80 cm) or a few centimeters, depending on the positioning system (DGPS).
For detailed information see the datasheet
>>>
Several other products, like:
pressure indicators
cutter depth indicators
revolution counters
profile computer
dynamic global positioning systems
etc.
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Downloads datasheets (PDF)
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