Raymarine L750 Operations Instructions download pdf (Page 64)

L750 Fishfinder: Installation and Operation Handbook

trigger the alarm, the letter “D” will begin to flash, and the buzzer will

sound. Press the Clear button to silence the buzzer. The letter “D” will

continue to flash until you move into shallower water.

Note: You may want to use both the Shallow Alarm and Deep Alarm

features when you are anchored. Set the limits just a bit to either side of

your anchor depth. When set this way, the unit will trigger an alarm if the

anchor drags and the boat moves into shallower or deeper water.

Fish Alarm

The third Soft Key controls the Fish Alarm feature. This alarm will trigger

when the unit detects a fish. Press the Soft Key again to turn this item on

or off. The fish alarm feature will work even if the fish symbols are turned

off.

When the fish alarm is set, the fish symbol will appear in the upper left-

hand corner of the normal displays. If a fish is detected, the buzzer will

sound. The unit uses different buzzer tones to indicate fish detected by

the 50 kHz and 200 kHz transducers.

Buzzer

The fourth Soft key sets up the Buzzer feature. Press the Soft Key

several times to see the three possible settings. If you choose the

setting labeled Alarms, the buzzer will sound when any of the alarm

conditions occurs (shallow, deep, or fish alarm). When one of the

alarms is tripped, the “S” or “D” symbol at the top of the screen will flash.

By pressing the Clear button, you can silence the buzzer for the

current

alarm condition

. The “S”or “D” symbol will continue to flash as long as

the alarm condition is still present.

If the alarm condition occurs again, the buzzer will sound again. (For

example, this would happen if, after a shallow alarm you moved into

deep water, then returned to shallow water.) You can silence the buzzer

again by pressing the Clear button.

If you choose the setting for Alarms + Keys, the buzzer will also sound a

short “beep” each time you press one of the buttons on the control panel.

This confirms that you have pressed the button hard enough, and that

the unit has received your command.

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Raymarine L750 Operations Instructions Page 64