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— 36
BATTERY AND AUTO SHUTOFF
Your calculator is powered by a single
3-Volt Lithium CR-2016 battery. This should
last approximately 800 hours of actual use
(1 year plus for most people). Should the
display become very dim or erratic, replace
the battery. Please use caution
when disposing of your old batteries as
they contain hazardous chemicals. Your
calculator is designed to shut itself o after
about 8-12 minutes of non-use.
Note: Values in memory or shown on the display will
be cleared.
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.
DEFAULT SETTINGS
After a Clear All (c x), your calculator
will return to the following settings:
STORED VALUES DEFAULT VALUE
Desired Riser Height 7-1/2 INCH
Desired Tread Width 10 INCH
Floor Height 10 INCH
Rebar Spacing 18 INCH
Rebar Inset 3 INCH
Rebar Size #5 (5/8″)
Load Size 8 CU YD
Bag Size 0.666667 CU FEET
Weight per Volume 1 .5 Ton Per CU YD
PRG4225E-E.indd 36 6/28/2016 1:03:11 PM
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