9
10
B
ACKLIGHT
A
UTO
S
HUT
-O
FF
Backlight Auto shut-off allows the user to select the interval at which the backlight of
Outback will automatically turn off. The backlight on the Outback can be programmed
to automatically shut off at 3 predetermined intervals. They are: 10 seconds, 30
seconds and 60 seconds. The backlight can also be programmed to never automatical-
ly shut-off. The default auto shut-off value is 10 seconds. Keep in mind, the backlight
uses significantly more power than the compass itself, therefore it is recommended the
backlight be turned off when it is not being used. The backlight can always be shut-off
by pressing the LIGHT button regardless of which backlight auto shut-off value is
chosen.
1. The Outback must be in Basic to program the backlight auto shut-off
2. Hold MENU until
PROGRAM
flashes to enter programming mode. The display
word flashes ÒPOWERÓ.
3. Press ADVANCE once and ÒLIGHTÓ flashes in the display word. Press ENTER
to select the backlight auto shut-off.
5. The chosen backlight auto shut-off value is displayed. (Example: Ò10 SECÓ if 10
seconds is chosen as the backlight auto shut-off or ÒOFFÓ if the backlight auto
shut-off is disabled)
6. Press ADVANCE to step from one backlight auto shut-off value to the next until
you see the one you want to use, then press ENTER.
7. The chosen auto shut off value does not flash when in the display word. Any
value which is not the chosen value, flashes when in the display word.
8. If you do not press ENTER while viewing a different backlight auto shut-off value,
the Outback uses the value which was previously selected. (Example: If the auto
shut-off value is currently Ò10 SECÓ, and you scroll through the backlight auto
shut-off values by pressing ADVANCE, and ENTER is not pressed while viewing
a different auto shut-off value, the Outback continues to use 10 seconds as the
backlight auto shut-off value)
C
ALIBRATION
Calibration allows the Outback to separate the earthÕs magnetic field from the local
magnetic fields thereby providing accurate heading information. The Outback must
be calibrated because the internal electronics of the Outback generate magnetic fields.
W
HEN
T
O
C
ALIBRATE
The Outback must be calibrated when:
1) It is being used for the first time.
2) The magnetic distortion flag, ÒdISTÓ, is displayed.
3) The batteries are removed or replaced.
4) The Outback seems to be consistently inaccurate.
There are two methods of calibration for the Outback. Option one is a 180¡ calibra-
tion method and option two is a 720¡ method. The 720¡ calibration method is more
accurate, but it is also the more difficult to perform correctly. With 720¡ calibration,
the Outback must be constantly level during calibration. This is best achieved by
placing the Outback on a level, nonmagnetic surface such as a solid wood or plastic
table which is at least three feet away from any source of magnetic interference.
The 180¡ calibration is also performed by also placing the Outback on a level,
nonmagnetic surface such as a solid wood or plastic table which is at least three feet
away from any source magnetic interference, but if one is not available, the 180¡
calibration can be performed by holding it level in your hand. Only one calibration
method needs to be performed. If both are performed, the Outback will only store
calibration data from the last calibration.
180¡ C
ALIBRATION
1. The Outback must be in Basic to perform 180¡ calibration.
2. Hold MENU until
PROGRAM
flashes to enter programming mode. The display
word flashes, ÒPOWERÓ.
3. Press ADVANCE twice until the display word flashes ÒCALIB 180¡Ó.
Then press ENTER.
BRUNTON MAN. MECH. 7/97 9/29/98 9:08 AM Page 7
