Celestron 48001 TrekGuide, Instruction Manual

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5
B
ackLight
/ k
eypaD
L
ock
• Press the “L” button to turn the backlight on for 5 seconds.
• Press and hold the “L” button for 3 seconds and the
keyboard will be locked and the icon will be shown in
the LCD display. Hold the “L” button down for 3 seconds to
unlock the keyboard.
L
eveL
In the center of the “L” button is a bubble level. When the
small bubble is centered on the button the unit is level.
m
aintenance
& t
rouBLeshooting
• Do not disassemble or modify the unit in any way.
• Do not use any abrasive or volatile cleaners on the unit.
• Do clean the unit with water using a soft cloth.
• Do not pour water or any type of liquid or put food on
the unit.
• If for some reason the LCD keys do not work, remove the
batteries and reinstall them.
y
our instrument has a two year LimiteD warranty
.
p
Lease see the
c
eLestron weBsite For DetaiLeD inFormation
on aLL
c
eLestron proDucts at www
.
ceLestron
.
com
.
t
emperature
• When compass mode is off, the LCD display will provide the
temperature reading with unit of °C or °F. The range is from
-20°C to 60°C and -4°F to 140°F.
• When the temperature is lower than -20°C the LCD display
will show LL.L°C. When the temperature is higher than 60°C
the LCD display will show HH.H°C.