Humminbird 150SX, Operation Manual

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17
USING THE 150SX
MENU FUNCTIONS
Contrast. The Contrast function allows the user to
control the level of contrast of the LCD display. The
150SX will automatically adjust the display contrast
to compensate for changing ambient temperatures;
however, some situations may occur where manual
adjustment will provide a higher level of contrast.
Eleven contrast settings, +5 to -5, are possible. The
display contrast will change as the adjustment is made so the optimum
level of contrast can be achieved. Use the ARROW buttons to highlight the
desired selection. The 150SX will reset to the factory setting when the unit
is powered off.
Display Speed. Display Speed controls the
rate at which the graphic information
moves across the display. There are 5
possible speeds; the fastest rate (5) is the
factory setting. Keep in mind that the
closer the update rate matches your boat
speed, the more accurate is the graphic
depiction of the terrain beneath your boat.
Use the UP and DOWN ARROWS to select
the desired update rate. The Display Speed
setting is remembered when the unit is powered off.
Battery Alarm. The Battery Alarm Option
allows you to select the voltage level at
which the Battery Alarm activates.
At the Battery Alarm menu (under options),
you will note that the default setting is OFF.
Push the DOWN ARROW BUTTON to select
the feature ON. Push the DOWN ARROW
BUTTON again to move into the ADJUST BATTERY ALARM setting. Using
the UP and DOWN ARROW BUTTONS, select a voltage between 9.0 and
12.0.
When the voltage drops below your selected voltage, an audible alarm will