Low Battery Alarm; Aux. Temp. Alarm (With Optional-Purchase Temp. Probe Or Temp/Speed Only) - Humminbird 747c Operation Manual

531526-1_A - 747c_&_777c2_Man_Eng.qxp
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 sounds when the water temperature (from an optional-
purchase temperature probe or Temp/Speed accessory) 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)

Low Battery Alarm

Low Battery Alarm sounds when the input battery
Aux. Temp. Alarm
(with optional-purchase temp. probe or Temp/Speed only)
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