
Operational procedures
79
857-164636 / Rev.A
1
Verify that the echo sounder is operational.
2
Press the
MENU
button to access the main menu.
3
On the
Setup
menu, select
Sensor alarm/calibration
.
4
Select minimum and/or maximum distance for the alarms,
and activate each alarm separately.
5
Press the
ENT
key to store the parameters and exit.
The clearance alarm will take the current depth reading from the
echo sounder and subtract the current depth reading from the
Depth sensor. The calculated depth of the trawl or towed body is
then compared to the alarm limits. Due to the distance between
the vessel and the trawl, you will have ample time to make the
necessary adjustments to avoid damage.
If your Depth sensor is mounted to the headrope, you must
create a manual depth marker. This is made in the
Trawl info
dialogue.
Related topics
→
Speed setup, page 180
→
Echo sounder setup, page 157
→
Trawl info dialogue, page 182
→
Sensor alarm setup, page 177
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