Buttons Function
1. Mono Keying
, '
Up
' and '
DOWN
'
button:
In busy state (certain icon of LCD is blinking, waiting for
key-entering) press 'UP' button or 'DOWN' button to increase or decrease digit number. In standby
state (no icon blinking or no keying for at least 3 seconds), presses 'UP' or 'Down' button to select
one of the five icons showed in the following diagram. Selected icon will be blinking, indicating
that this data field is being activated for data input.
Figure 4: A Cycle of High Lighted Icon in Busy State
-- The SET button is used to activate a data field for a data input. In standby state, pressing the
button for 3 seconds will commence digital compass calibration.
-- The OK button is to confirm a data input and quit. Also it can cycle you through data field in
normal state. ( In standby state, pressing and holding the button will start the Courser function in
case of no MIIC included. )
-- Pressing and holding the POWER button will turn the unit On/Off. Pressing and releasing
will also ignite or darken display backlight.
2. Dual keying
+
Press and hold the two buttons simultaneously for two second to shift measurement unit.
+ Press the two buttons for two seconds to toggle GPS navigation pointer pointing function:
pointing to Point (n-1) (previous point of current point, position of this point has been marked
before) or pointing to Destination.
+ Press the two buttons for two seconds to toggle GPS navigation pointing function:
pointing to Point (n+1) (next point of current point, position of this point has been marked before)
or pointing to Destination.
7
OP9---
Use "
Up
"
or "
DOWN
"
button to highlight the distance icon
(refer to S4 in figure4), press and release "SET" button, distance icon will shifted to
, while the distance will correspond to it.
___ cumulative distance between starting point Home 0 to current point Home N. During
navigation
,
to show such distance just act like
OP9
.
Note : Inaccurate distance will result if GPS signal is lost during navigation.
Speed
With GPS signal being acquired (GPS signal icon become stable
Instead of blinking) the speed data field displays the instant speed relative to the ground.
Note: the value of speed will Remain
unchanged at the moment of losing GPS
signal until reacquiring GPS sigal.
Figure 10: Speed Data Field
Timer 1 and Timer 2
Timer 2
displays
Greenwich Mean Time or GMT, The value of Timer 2 will stop to run at the
moment of losing GPS signal.
Timer 1
is similar to the type in common use. Hour, minute and seconds of it can be set and
reset.
Op10 ---
To set Time 1, press "
UP
" or "
DOWN
" button to highlight Timer1 icon (refer to S5 in
figure4), then press and release "
SET
" button to enter into data field, then us "
UP
" and
"
DOWN
" button to change the digits of hour, minute and seconds.
Timer 1
can also be calibrated with GMT from Time 2.
Op11 ---
to calibrate Time 1, press "
UP
" or "
DOWN
" button to highlight Timer 1 icon, then press
"
SET
"
button for three seconds.
Such process will correct the value of minute and second according to GMT. Hour of it is
derived from offsetting GMT with the longitude of current position. GMT is collected from
NMEA sentence retrieved from the GPS receiver module. Since the world is divided into 24 major
civil time zones of equal width. Each zone would have an east-west dimension
Figure 11:Timer1
Figure12: Timer 2
18
POLARIS USER MANUAL
POLARIS USER MANUAL