Operation Manual

Simrad PI54
150
850-165186 / Rev.B
Numerical presentation
On the PI54 display, the distances between the trawl doors are
displayed in the numeric display. Two rectangles are used, one
for each distance. If the distance is increasing or decreasing, this
is shown with two arrows and the variation in meters per
second.
When the readings are stable, the digits are shown in black
colour. When the values are predicted, the digits are grey, and if
the contact is lost, the characters **.* areshowningrey.The
characters ±±.± indicate that the Twin Spread sensor has lost
contact with the Remote sensor(s), while characters ??.? means
that the Remote sensors are out of range.
(A) = Twin Spread sensor set up as
sensor no.1.
(B) = The distancea are measured in
meters.
(C) = Current distance between the
port door and the center clump.
(D) = The distance is increasing by 1
meters per second.
(E) = Arrows pointing “out” means
that the distance is increasing.
Arrows pointing “in” means that it is
decreasing.
(F) = Graphic alarm
(G) = Indicator, lit for every sensor interrogation.
(H) = Interference symbol.
The bottom numeric display shows the distance from the port
door to the starboard door, and indicates that the distance is
decreasing with 0.5 meters per second.