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low alarm sounds a tone.
To turn the shallow alarm off, press the MENU key, then press the key
next to the "Alarms" label. Now press the key next to the "Shal Alarm"
menu until the check mark moves to the “OFF” box. Press the CLR key to
return to the sonar display.
Remember, the shallow and deep alarms adjust exactly the same. The
only difference is the shallow alarm sounds when the bottom signal goes
shallower than the shallow alarm’s setting. The deep alarm sounds when
the bottom signal goes deeper than the deep alarm’s setting.
ZONE ALARM
The zone alarm only works on
the 2D chart or 2D FasTrak
view. Any echo that passes
inside the zone alarm’s bar
sets it off. To adjust the zone
alarm, first press the MENU
key, then press the key next
to the "Alarms" label. Now
press the key next to the
"Zone Alarm" label. A new
menu appears at the bottom
of the screen. Finally, press
the key next to the "Accept"
label. The screen shown above appears.
The zone alarm’s bar appears on the right side of the screen. Adjustment
menus show in the middle of the screen. Press the up or down arrow keys
to move the
bottom
of the zone alarm bar up or down. To adjust the top of
the zone alarm bar, first press the key adjacent to the "Adjust Upper"
label. After setting the zone alarm bar, press the CLR key to erase the
menus and bar or wait a few seconds and they will automatically clear.
(You can turn the zone alarm’s bar on continuously. See the 2D View
Options section for more information.)
Setting the zone alarm automatically turns it on. To turn it off, press the
ALARM key, then press the key next to the zone alarm’s menu. This moves
the check mark from "ON" to “OFF”. Press the CLR key to exit the alarm
menu.