
Simrad PI54
120
850-165186 / Rev.B
PS Catch sensor
Purpose
The PS Catch sensor detects when the trawl has been filled
with fish. The sensor monitors the opening of the meshes i n the
cod end, and will be activated once the volume caught is enough
to pull the detector wires.
Catch sensor principle: Three sensors are
mounted at the cod end of the trawl to detect the
amount of fish caught.
Main parts
(A) = Negative charging / fastening lug
(B) = Positive charging / fastening lug
(C) = Communication link
(D) = Location of sensor lamp
(E) = Water switch sensor
(F) = Detection wires
Daily operation
To monitor the filling rate, we recommend that
you use minimum two sensors. The first sensor is
located at the far end of the cod-end indicating
that the trawl is fishing, while the second sensor
tells when to haul. Due to the fish m oving back
and forth in the cod-end, the sensor will normally
change status (on/off) several times until the
volume caught keeps the opening of the meshes
stable.
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