Sensors
SS4 Door Sensor
Type SS4-D-VTLA 144
Multifunctional door sensor for distance, depth, temperature, tension, angle and stability.
- Multifunctional
- Increased battery capacity
- Robust and innovative construction
- 5 year warranty
SS4 DoorSensor
An important factor in all kinds of trawling is having control of your trawl doors. Water flow, speed, depth, wire length, bottom conditions and underwater currents all affect the performance of your doors and the trawl efficiency.
Functions in the new SS4 DS
- Distance
- Door distance, bottom and pelagic trawl
- Depth
- Door depth
- Temperature
- Sea water temperature
- Tension
- Tension in trawl wires or sweeps
- Angle
- Door angle (roll and pitch)
- Stability
- Door stability (ScanFactor)
The sensors can be bought with one or several functions, and can be upgraded later via license.
Construction
The new design with double casting of the electronics provides 100% protection. Scanmar’s newly developed super plastic drastically reduces damage to the sensor from strokes, tension, or if the doors get hooked on the bottom.
Batteries and charging
With new long lasting lithium-ion batteries, charging is in many cases no longer an issue. Many are able to keep the sensor on the door for the whole trip, and only charge when back from the fishing ground.
Technical specifications
Distance
- Range
- 0-300 / 0-600 m
- Accuracy
- ± 0.5% of value
Angle
- Roll angle
- -90° to +90°
- Pitch angle
- -90° to +90°
- ScanFactor roll
- 0° to +20°
- ScanFactor pitch
- 0° to +20°
- Accuracy
- ± 1°
Depth
- Range (full scale)
- 300/600/1200/1800 m
- Accuracy1
- 1 m
Temperature
- Range
- -5°C to +30°C
- Accuracy
- ± 0.15°C
Tension
- Range
- 12 ton
- Accuracy
- ± 60 kg
- Repeatability
- ± 30 kg
- Overload
- 48 ton
Height2
- Range
- 1 - 60 m
- Accuracy
- ± 0.5% of value
Operation
- Mounting position
- Door
- Mode
- Master or slave
- Trawl
- Single, double and triple trawl
- Update rate
- 3 to 20 sec
- Operation time3
- Up to 7004 hrs (3505 hrs typical)
- Max. depth
- 1500 m continuously (2000 m for a short period6)
Uplink
- Frequency range
- 38.9 – 43.4 kHz
- Source level
- 170 - 191 dB //1uPa @ 1m
- Beam width
- 55º (- 3dB)
- Range to vessel7
- Approx. 2500 m (max power)
Distance measurement
- Frequency
- 144 kHz
- Source level
- 168 - 193 dB //1uPa @ 1m
- Beam width
- 60º (- 3dB)
Battery
- Smart battery
- LiIon 10.8V / 7200 mAh
- Charging time
- Typ. 1.5 hour (QBC-X1)
Configuration
FID, measurement type (telegram), mounting position, depth range and uplink & transponder transmit power.
Weight
- In air
- 6.7 kg
- In water
- 2.0 kg
Available accessories and spare parts
- Mounting kit trawl door
- 107705
- Battery pack (standard)
- 108164
- Battery pack (DoorHeight)
- 110754
- Battery charger
- QBC-X1
Environmental
- Storage
- -20°C to 55°C
- Waste treatment of sensor
- According to WEEE-directive