P
OCKET
R
EFERENCE
G
UIDE
— 41
Battery
This model uses one (1) CR2016 battery
(included). Should your calculator display
become very dim or erratic, replace the
battery.
Note: Please use caution when disposing of your
old batteries, as they contain hazardous chemicals.
Replacement batteries are available at
most discount or electronics stores. You
may also call Calculated Industries at
1-775-885-4900.
Replacing the Battery
Turn the calculator over and open user
guide door located at the top. Pull battery
holder out (top left corner) and turn over.
Remove old battery and slide new battery
under tabs. Turn holder over (negative side
facing you) and insert into calculator.
Reset
If your calculator should ever “lock up,”
press Reset — a small hole located above
the
p
key — to perform a total reset.
Summary of Contents for 4050 v3.1
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Page 46: ...POCKET REFERENCE GUIDE 42 AREA AND VOLUME FORMULAS Area Formulas Dgm AF 100...
Page 47: ...POCKET REFERENCE GUIDE 43 Volume Formulas Dgm VF 101...
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