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Chapter 3 - Using the Controls
Brightness key
Controlling
LCD-screen
brightness
Page 3-26
Use the NEW AVOID key to:
•
add a new avoidance point to the list
Use the COPY key to:
•
make a new avoidance point by editing a copy of an exist-
ing one
Use the EDIT key to:
•
edit an avoidance point
•
erase an avoidance point
For in-depth information about avoidance points, see "Creat-
ing Avoidance Points" starting on page 7-1.
To adjust the screen for the current lighting conditions, press
the 961's BRIGHTNESS key, which is the double-arrow key
located on the upper left-hand side of the 961. Press the top
arrow to brighten the screen, or the bottom arrow to darken
the screen.
At high brightness, the fluorescent tubes illuminating the
961's screen slowly dim after several thousand hours of use. If
you use the 961 for several hours each day, try to keep the
lighting level low when you don't actually need it (for exam-
ple, during twilight or nighttime hours). Occasional
users—once a week or less—don't need to worry about keeping
the lighting level low.
Producing the high brightness needed for sunlight visibility
creates heat within the control head. When used during hot
sunlit conditions, the unit may automatically protect itself
from overheating by lowering its screen brightness. If this situ-
ation occurs, it's perfectly acceptable to increase the bright-
ness whenever necessary—the 961 will dim the screen again, if
necessary.
If you don't touch any key on the control head for one hour or
more, its LCD screen automatically dims to half its normal
brightness (based on its current brightness), if necessary. If
you press any key at any time, the display automatically
961 Operations and Reference Manual Rev. D
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