Humminbird 797c2 SI/NVB, Operation Manual

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Low Battery Alarm
Low Battery Alarm sounds when the input
battery voltage is equal to or less than the menu setting. The battery alarm will
only sound for the battery that is connected to the Fishing System. The Low
Battery Alarm should be set to warn you when the battery voltage drops below
the safety margin that you have determined. For instance, if you are running a
trolling motor (battery operated), you would want to set the Low Battery Alarm
to sound before the battery voltage drops too low for it to be used to start your
main, gasoline-powered engine.
To change the Low Battery Alarm setting:
1. Highlight Low Battery Alarm on the Alarms main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Low
Battery Alarm setting. (Off, 8.5V - 13.5V, Default = Off)
Aux. Temp. Alarm
(with optional-purchase temp. probe or Temp/Speed only)
Aux. Temp. Alarm sounds when the water temperature from the
Paddlewheel/Temperature Probe detected by the Fishing System reaches the
Aux. Temp. Alarm setting, which is either set in degrees Fahrenheit or Celsius
[International Models only] . For example, if the Aux. Temp. Alarm is set to
58 degrees Fahrenheit, and the water temperature falls from 60 degrees to
58 degrees, the Aux. Temp. Alarm will sound. Similarly, if the water temperature
rises from 56 degrees to 58 degrees, the Aux. Temp. Alarm will also sound.
To change the Aux. Temp. Alarm setting:
1. Highlight Aux. Temp. Alarm on the Alarms main menu.
2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Aux. Temp.
Alarm setting. (Off, 33-120 [Fahrenheit], 0-50 [Celsius], Default = Off)