Marport Catch Sensor - Installation; Installing the Sensor on the Trawl

Catch Sensors | V1 | Installation
Installation
Read this section to learn how to install catch sensors on the trawl gear.
Installing the Sensor on the Trawl
You can install one or several Catch and Catch Explorer sensors on the codend of the
trawl.
About this task
Sensors can be installed with the pull cords on the side or on the center of the sensor.
Pull cords are attached to the net. When the net fills up and the meshes expand, cords are
pulled and this triggers the catch sensor.
You can install a stabilization board for Catch Explorer sensors.
Procedure
1.
Install the sensor on the top of the codend with the UP side of the housing oriented
toward the vessel. Make sure there is nothing in front of it that would block its signal.
Tip: If the meshes of the net obstruct the Catch Explorer signal, you can install
the sensor inside the codend.
2.
Securely attach the sensor to the net by its front and back attachment lugs:
a)
We recommend lashing the shackles to the front and back attachment lugs with
rope. This prevents metal to metal contact and extends the life of the housing.
b)
When you attach the sensor, stretch the net codend at the point where you need
the catch status to become full.
c)
Once installed, make sure that when the net is fully stretched out it does not cause
stress on the attachments points.
3.
If you use a stabilization board:
a)
Put the mounting straps through the lugs on the sides.
b)
Attach the stabilization board with rope to prevent rapid wear on the board.
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