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Trawl System: Simrad ITI
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The wireless system is designed for positioning of fishing trawl
relatively to the vessel and for achieving a full coverage
of the trawl geometry.
Water, depth, speed, temperature control; horizontal trawl opening control; control over the cod end fills up fish.
Hydroacoustic connection between fishing vessel and sensors installed on the trawl.
There is a principle of sensors inquiry at the command of user from the vessel which allows to prolong the time of accumulator's work in sensors.
Integrated trawl system can be quite simple with one sensor and may be enlarged to a very developed system.
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Technical specifications:
| Parameters, function | Values
| | Depth of immersion of underwater units | 2000 m
| | Range of registration | bottom - 150 m, trawl opening: 3 - 50 m / 3 - 300 m
| | Working frequency | trawl sounder: 120 kHz sensors: 27 - 33 kHz
| | Range of depth trawl move | 2 – 2000 m, ± 0,3% from scale
| | Water temperature control | from - 5° to +30° Ñ, ± 0,3° Ñ
| | Catch control | 3 steps
| | Power supply: |
| | Board units | 220 VAC, 50/60 Hz
| | Underwater units | Accumulators
| | Dimensions: |
| | Monitor | 494 õ 373 õ 103 mm
| | Transceiver | 400 õ 400 õ 300 mm
| | Temperature sensor | 360 õ 273 õ 125 mm
| | Depth sensor | 360 õ 273 õ 125 mm
| | Sensor of horizontal opening | 360 õ 273 õ 125 mm
| | Sensor of vertical opening | 360 õ 110 õ 110 mm
| | Catch sensor | 360 õ 273 õ 125 mm
| | Trawl sounder | 360 õ 273 õ 125 mm
| | Mass: |
| | Temperature sensor | about 3 kg
| | Depth sensor | about 3 kg
| | Sensor of horizontal opening | about 3 kg
| | Sensor of vertical opening | about 3 kg
| | Catch sensor | about 3 kg
| | Trawl sounder |
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A scope of delivery:
- Display;
- Simrad color LCD monitor
- Transceiver unit
- Dual transducer
- Keypad
- Temperature sensor (option)
- Depth sensor (option)
- Sensor of horizontal opening (option)
- Sensor of vertical opening (option)
- Catch sensor (option)
- Trawl sounder (option)
- Charger
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