Nautique 230 - Manual (Page 105)

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Controls and Indicators
Holding M in for two seconds will save the new shallow setting and
change the display back to the normal depth mode. Set to zero to
disable the alarm.
Deep Alarm
This alarm sounds when the water depth equals or is greater than
the set value.
The display will show “d XX.X” which is the current setting for the
deep alarm.
Pressing s and t will change the deep setting.
Holding M in for two seconds will save the new deep setting and
change the display back to the normal depth mode. Set to zero to
disable alarm.
Keel Offset
Adjust depth sounder to measure depth below keel or drive instead
of sensor.
The display will show “K X.X” which is the current setting for the
keel offset. Pressing s and t will change the keel-offset setting.
Deep Display
CORC123
Shallow Display
CORC122
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