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Basic maintenance
Weatherproofing
your 961
Cleaning the screen
961 Operations and Reference Manual Rev. D
The following information will help you maintain your 961's
high performance level:
•
keep fingerprints off the display screen (remove any prints
with a lens cleaning cloth)
•
don't scratch the display by scraping a sandy or salty cloth
across it
•
remove dirt and grime with Windex and a soft cloth, or
else soap and water
•
don't try to open the control head's case—there aren't any
user-serviceable parts inside
•
use the 961's protective plastic cover during periods of
inactivity
•
never expose the processor to moisture of any kind—it is
not water-resistant! (the control head unit is waterproof)
Excessive heat can cause short- and long-term damage to the
961. Although the unit can recover from short-term effects,
long-term damage may be permanent. When the 961 isn't in
use and is exposed to the hot sun, always shield it with the
protective plastic cover.
Saltwater spray
If left disconnected, the rear connectors behind the 961's con-
trol head may corrode slightly from exposure to saltwater
spray. Keep the plastic caps of the rear connectors in place at
all times. Protect the entire unit from prolonged exposure to
the elements by mounting it, if possible, in a relatively dry
area. At the end of a trip, wipe the control head dry.
Be careful when cleaning the glass window covering the dis-
play screen. Although it's scratch-resistant, you may damage
the anti-reflective coating if you use a dry cloth to wipe dirt
Chapter 2 - Introducing the 961
CAUTION!
Page 2-11
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