Display presentations
How to set up the graphic display
1
Identify the sensor you wish to use, and make sure that
the sensor is connected to the PI system with correct
communication channels and update rates.
2
Ensure that you have a graphic presentation active on your
PI system.
3
Press the
ADJ
button to open the
Graphic setup
menu.
4
Press the
GAIN+
button repeatedly to reach the
Marker line
dialogue.
5
Observe the list of sensors that appear. Only those sensors
that can provide a marker line are listed.
6
For every sensor, set
Auto Delay
to
On
.
• This allows the PI system to use the Trawl Calculator
to estimate the correct time delay. This will place the
marker correctly on the timeline depending on the current
location of the trawl. (This is not applicable for purse
seiners.)
• If you wish to calculate the delay yourself, set
Auto
to
Off
. You must then enter the calculated value into the
Delay
column.
• This function is not important when you use the PI
Geometry sensor. We recommend that you choose the
default value.
7
Enter requested value for
Width
.
• Use this parameter to control the thickness (in pixels)
of the marker line(s).
8
For every marker line, set
Show
to
On
.
9
If you wish to see the marker lines in the expanded views
(bottom expansion, zoom and phased range), set
Sensor
marker in expansion
to
On
.
10
If you wish the PI system to draw a thin white line over and
under the marker lines, sett
Marker white zone
to
On
.
11
Press the
ENT
button to save the chosen parameters and
return to the graphical presentation.
How to extract the difference between the two
geometry measurements
A special function is available to calculate and display the
difference between the two geometry measurements. Once this
function is activated, the difference between the two geometry
sensor are shown on the left hands side in the graphical display.
Observe the
TS
value displayed. With a “perfect” trawl or danish
seine situation, this value should be 0.0 meters.
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Содержание PI GEOMETRY
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