Humminbird 425 SX Fish Finder User Manual


 
At initial power-up, the 425SX uses settings that were set at the factory. After
initial use, the 425SX will remember the settings you enter.
There are several elements on-screen that are common to all modes of
operation.
Temperature/Speed. The
initial screen layout takes one
of two basic forms depending
on whether the optional
Temp/Speed accessory is
installed. Figure A shows the
default view when the
Temp/Speed accessory is
installed. Figure B shows the
default view when the
Temp/Speed accessory is not
installed.
Depth. The digital depth
number shows the water
depth directly beneath the
transducer location.
Depth Range. The depth range
is shown to the right of the screen.
The upper number is 0 indicating
the surface of the water. The lower
number is one of the nine depth
ranges available that best match
the depth of the water. As the
depth of the water changes, the
range changes as necessary in
order to retain a bottom
representation on-screen.
8
Bottom Depiction
USING THE 425SX
WHAT YOU SEE ON-SCREEN
Figure B
6
Zero Line
Figure A
Water Depth
Depth Range