Operation Manual

Simrad PI54
84
850-165186 / Rev.B
Depth and Height marker lines
The purpose of these marker lines is to provide an easy way to
monitor the depth of the gear. The Height sensor measures the
distance from the seabed and up to the sensor, while the Depth
sensor measures the distance from the sea surface and down to
the sensor.
1 Identify which of the sensors that are the Depth and/or
Height sensors.
2 For each sensor, set Auto to On.
- This enables the PI54 to use the delay calculated by the
Trawl calculator.
- You can also set Auto to Off. You must then calculate
the delay yourself, and enter it manually in the Delay
column.
3 Enter your preferred value for marker line Width.
4 Enable each individual marker line by setting Show to
On.
5 If you wish to see the marker line(s) in expanded view
(Bottom Lock, Zoom and Shif t), set t he Sensor marker
line in expansion to On.
6 If you wish the PI54 to draw a thin white line over and
under the marker line to enhance the view, set Marker
white zone to On.
7 If you wish to view the Height marker in expanded mode
only, set Height marker in main echogram to Off.
8 Select the appropriate setting for Height reference.
9 Press ENT to save the settings and exit to the graphic
display presentation.
The Depth and Height marker lines are presented on the
Graphic display with continuous lines in the same background
colour as in the Numeric display. To read the depth, consult the
depth range on the right side of the display, or the readout in the
Numeric display.