
Simrad PI32
178
857-164636 / Rev.A
Clearance pre-warning
: These alarms are used to warn you if a
trawl or another towed object either moves too close to the
bottom, or lifts too far off the bottom. You must have the echo
sounder switched on to use this alarm. To enable it, set the
minimum limit to the minimum allowed distance between the
footrope and the bottom, and/or the maximum limit to the
maximum allowed distance between the footrope and the
bottom. Then, switch one or both alarms to ON. The alarm is
triggered if the reading from a
Depth
sensor mounted on the
footrope (or a manual depth marker) exceeds one of the defined
limits. To use this alarm for a single towed object, select the
Depth sensor as a
Foot rope sensor
in the
Trawl info
dialogue.
Related topics
→
How to define alarm limits, page 78
→
Trawl info dialogue, page 182
Содержание PI32
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