Calculated Industries 4215 - Manual (Page 55)

ranging also applies to other dimension-
al units such as inches to feet, feet to
yards, etc.
Battery & Auto Shut-Off Your calculator
is powered by a single 3-Volt Lithium
CR-2032 battery. This should last approx-
imately 800 hours of actual use (1 year
plus for most people). Should the dis-
play become very dim or erratic, replace
the battery.
Warning! Please use caution
when disposing of your old batteries as
they contain hazardous chemicals.
Your calculator is designed to shut itself
off after about 8-12 minutes of non-use.
Note: Values in Memory or shown on the
display will be cleared.
Full Reset/All Clear Press [Conv] [x] to
clear all memory registers. After a Full
Reset/All-Clear, the following settings
return to their default state:
Default Settings
Setting Default
Weight per Volume 1.5 Tons/Cu. Yd.
Block Area 128 Sq. Inch
Footing X-Area 1.8 Sq. Feet
Stair Riser Height 7-1/2 Inch
Fractional Setting 1/16
Fractional Mode Normal
User’s Guide – 55