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76
NAVIGATION
Doc. 12-7969 Doc. 12-7969 r09 (9/22/22) © Apeks (2022)
CALIBRATE
You may need to calibrate the compass from time to time to compensate for any magnetic interference (new dive
location or other surrounding changes). The Calibration selection in the Compass Main Menu allows you to initiate
a calibration.
To calibrate the DSX, select Calibrate from the Compass Main Menu. Then follow the onscreen prompts. Rotate
and turn the DSX in as many different directions as possible until the unit beeps.
ROTATE AND TURN OVER
IN MULTIPLE DIRECTIONS
UNTIL BEEP
The message READY PASSED CALIBRATION or FAILED CALIBRATE AGAIN will then appear.
READY
PASSED CALIBRATION
FAILED
CALIBRATE AGAIN
SET DECLINATION
Magnetic declination or variation measures the angle between the Earth's magnetic north and true north. The dec-
lination value for any region can be found on current geographical charts. By correcting for declination, you can
achieve a more accurate compass reading.
NOTE: Magnetic north changes over time; so use only current geographical charts to obtain the decli-
nation value for any geographical region.
/
COMPASS MENU
+8 EAST
SET DECLIN
/
SET REFERENCE HEADING
Pressing the Right button while on the Compass Main screen will set a heading. The heading is then represented
by a green marker. Pressing the Right button a second time will reverse the heading. The reverse heading is then
represented by a red marker. Pressing the Right button again will clear the heading. Arrows will appear to show
you the direction to correct your course if you are significantly off course.
BAR
226°
180 228°
REFERENCE
SW
S W
AR GF
DEPTH DIVE TIME
0:43
CHRONO
56:21
M
22.
9
181°
SE
SW
S
180
BAR
228°
REFERENCE
AR GF
DEPTH
DIVE TIME
0:49 25:43
CHRONO
M
22.
9
134°
SE
S
180 132°
BAR REVERSE
E
AR GF
DEPTH
DIVE TIME
1:06
CHRONO
18:59
M
22.
9
ON HEADING
(heading set to 228
°
)
OFF HEADING
(heading set to 228
°
)
ON REVERSE HEADING
(heading set to 132
°
)