Simrad PI54 A Especificaciones Pagina 119

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Sensors
107
850-165186 / Rev.B
PI Bottom Contact sensor
Purpose
The PI Bottom Contact sensor detects if a trawl is accidentally
lifted off the seabed, or a purse seine is touching the bottom.
(A) = The trawl follows the bottom. The detection wire on the sensor is not released.
(B) = The trawl has lifted off the bottom, and the detection wire is released.
Main parts
(A) = Negative charging / fastening lug
(B) = Positive charging / fastening lug
(C) = Communication link (Channel 1 - 30)
(D) = Location of sensor lamp
(E) = Water switch sensor
(F) = Detection wire (in/out)
(G) = Ground weight
Daily operation
Once installed and put to use, the sensor will
automatically be switched on once the
waterswitch is activated. After an initial startup,
the sensor starts transmission of the detector wire
(F) status (in or out). When the sensor is not in
use, check that the sensor lamp (D) is not flashing
from time to time, as this indicaties that the
sensor is on and is discharging its batteri es. In
this case, wash the sensor in fresh water to
remove salt and dirt.
If you operate with Fast update rate, the sensor
must be charged approximately every 35 hours.
Used with Normal or Slow update r ates, the
operational life is approximately 60 or 250 hours
respectively. The optimal sensor charging
temperature is from +10 to +25° C.
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