All vital information displayed on a powerful echosounder
Main echosounder screen, showing trawl lines
starting where the trawl is. This information is
either taken from the depth sensor or the height
sensor. The built in trawl calculator calculates the
distance to the trawl based on the ships speed
and wire length. The trawl height on the screen
is 4.1m off the bottom.
The bottom expansion function is a vital tool to
distinguish fish from the bottom. Here the white
line is turned on to even easier separate fish
and bottom. The trawl line will also be displayed
in the bottom expansion display giving a better
resolution.
High performance transducers
Installing the highly acclaimed Simrad transducers
will give you maximum performance from the echo-
sounder. The Combi-C and D transducers come in
38/200kHz and 50/200kHz and is the perfect
match for the PI44/54.
Active PI Charger
The PI Charger enables
intelligent and safe
charging of all sensors.
Hydrophones
The hydrophone is mounted in the hull facing
the net. For Purse seine one hydrophone is
installed pointing at the purse seine. For trawl
it is recommended to install two hydrophones
facing the trawl. This will ensure constant
communication during turning and if the trawl
is off centre line. A portable hydrophone is also
available for trials and as
intermediate solution while
waiting to haul the vessel.
Automatic hydrophone selector
A trawl is often not in a straight line behind
the vessel, it is on one of the sides. The automatic
hydrophone selector switch selects the hydrophone
that has the best signal level and makes sure
that you have optimum reception at all time.
The switch can be set to manual
if necessary.
The new sensor family
The PI family is continuously growing. The
new cable based FS70 system can be integrated
with the PI system. All information from the PI
system can be displayed on the FS giving pelagic
trawlers better control of their trawl and
a perfect back-up if the third wire breaks.
New PI Height Sensor.
