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Trawl length and tension meter system: Trawltec 1500
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System for length and tension meter for trawlers Trawltec 1500
(WAKI, Iceland). Precise information about trawl tension and
warp length is essential in maximizing the opening of the trawl,
and is especially important when turning the vessel in cross
currents. All information is displayed graphically by the
software.
Control of failures in trawl work which may be caused by cable
damages or damages of other important parts leading to work stop.
Life time increasing of armament (wires, wire units, trawls),
decreasing of loss of time for repair and increasing the amount
of fishing days.
During a simultaneous work of two trawls the general tension
on three wires is measured automatically; this allows to
regulate the tension on a central wire.
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Technical specifications:
Parameters, function | Values
| Measuring units: |
| Range of tension measuring | from 0 to 15 tons
| Maximum tension | 90 tons
| A speed of length measuring | 5 m/seconds
| Power supply of length sensors | 15 V DC
| Power supply of tension sensors | 5 V DC
| A distance between sensor's heads and plate of winch barrel | 2-8 mm
| Range of working temperatures | from -10 to +40°Ñ
| Microcomputer: |
| A way of connection | RS-485, sequential
| Resolving capacity on monitor | < 1 kg of tension
| Range of working temperatures | from -10 to +40°Ñ
| Power supply nominal tension | (18-24) V DC
| Power supply consumed capacity | 0,2 À
| Software: |
| Operational system | Microsoft ® Windows
| Requirements to the computer | ÐÑ386, fixed disk 20 MB, RAM 4 MB |
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A scope of delivery:
The system consists of four main modules:
- Measuring unit
Sensors for tension and length are set up in a special blocks.
Three robust blocks come in three main sizes, and can be used
either as a main or a middle block, depending on the size
of the vessel.
- Microcomputer
Converts analogue sensor signals to digital form. After computing,
signals are sent to the PC for display.
- Computer
Used to display information and configurations, and perform minor
calculations. Up to three monitors can be connected to the
computer.
- Software
All operations are executed schematically, with point and click
mouse operation. If the user has some difficulties in his location,
clear and concise help is instantly available by clicking the
«Help» button.
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