Operation Manual

Sensors
143
850-165186 / Rev.B
PI Spread and Remote sensors
Purpose
The P I Spread and Remote sensors measure the physical
distance between the trawl doors.
Note: Each Spread sensor can be configured to communicate with one
of two remote sensors; Remote 1 or Remote 2. Label the Spread
sensor accordingly, and ensure that you only use the sensors in
the correct pairs.
(S) = The PI Spread sensor is mounted in a
special adapteron the port trawl door.
(R) = The PI Remote sensor is mounted in a
special adapter on the starboard trawl door.
(C) = The PI Spread sensor communicates with
the PI system on the vessel.
(F) = Using the transverse communication link,
the two sensors measure the physical distance
between the trawl doors.
Main parts
(A) = Negative charging and fastening lug
(B) = Positive charging and fastening lug
(C) = Communication link to the vessel
(D) = Location of sensor lamp (rear side of PI
Spread)
(E) = Water switch sensor
(F) = Transverse communication link