e.g. Direction pointing
by
......
;
- South East
(SE)
135·
Direction
..-
po
inting
~
- North East
(NE)
North -
O·
t
These dots depict
symbolica
ll
y a
compass needle
•
..-
,'~
.-~
..
"
.
.'
..
'
",'
Example: Determinati
on
of North
-+
Direction
pointing
~
- South West
(SW)
West
-
270·
.'
• •
• •
• •
.' .
• •
. .
•
•
-.
' .
...........
.'
.'
.'
..
'
You
may symbolize the icon
•••
as the "TIP" of
an
needl
e.
which always points to the north, and icon
•••
as the "TAIL"
of the needl
e,
which always points to the south. No matter the
current compass's o
ri
entation is, the NORTH and SOUTH can
easily
be identified
by
...
and.
• • .
Compass Calibration
and Environmental Interference
• It is important to know a
ll
digital compasses
works with Earth's magnetic field and is very
sensitive to different
env
ironments where
the
earth magnetic fields is distorted, such
as
interference by closing to heavy
melal
,
home
app
liance, computer and high
power
cable ...
elc
.
•
To
keep a
hi~h
accurate heading information.
you
must
ca
librate the compass when
(1) the magnetic distort message "Err" is continuously
displayed
(2)
the
numeric heading information with an error more than
10
degree
(3)
the
unit is used for the first time in a vehicle
so
as
to
separate the earth's field from the interference.
Malfunction
Incorrect
Compass
Road
l
ng
"Ell"
display.,
Compass
Mode
Incorrect Temperature
Reed
i
ng
DiSplay
readout
fede8
and
Incorrect readings
Black Display
DIsplay
shows
Irregular
figIns
Problem
Wrong
Ca
libration or the envirorvnent of
operation
Is
changod
.
Do
the Calb"ation again with correct
instruction stated In the user manual.
Extemal
MagnetiC
Interference. such as
heavy
metal
.
hOme
appIance. computer
and
high
power
cable
. etc
..
.
Escape
from
the Int8fference or
re-calibration
again.
Interference
from
direct
sun
light. air
concitioner or Heater
vent.
Move
the
unft
away
from
the Intooerence.
Poor battery or
bad
contacts.
Take out battery and .,staIl
again
or
Install a new battery.
Temperature too
hot
. or display exposed
10
dI
rect
8un
llght too long.
Take
out battery and
inSlall
again.
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