C
onstruCtion
M
aster
P
lus
eZ
19
Weight per Volume Conversions
Find the weight of 15 cubic yards of gravel. The gravel weighs 1.75 tons
per cubic Yard.
Note: The default weight conversion is 1.5 tons per cubic yard.
1. Enter the weight per cubic yard:
1.75C5
1.75 TONS/CU. YARD
2. Enter the volume of gravel and find the weight:
15yyyC6
26.25 TON
3. Find the weight in metric tons and pounds:
C3
23.813599 MTON
C4
52500 LBS.
Calculating Percentages
The
%
key can be used for finding a given percent of a number or for
working add-on, discount or division percentage calculations. It can be
used with any type of number, in any dimension (Feet, Inch, millimeter, etc.)
and any type of convention (non-dimensioned, linear, square or cubic).
Find 18% of 50 Feet:
OO
0.
50fx18%
9 FEET 0 INCH
Take 20% from 17 Feet 6 Inches:
17f6i-20%
14 FEET 0 INCH
BASIC MATH OPERATIONS
Adding and Subtracting Dimensions
Add the following measurements:
•
6 Feet 2-1/2 Inches
• 11 Feet 5-1/4 Inches
• 18.25 Inches
Then subtract 2-1/8 Inches.
6f2i1/2+
6 FEET 2-1/2 INCH
11f5i1/4+
17 FEET 7-3/4 INCH
18.25i=
19 FEET 2 INCH
-2i1/8=
18 FEET 11-7/8 INCH
Multiplying Dimensions
Multiply 5 Feet 3 Inches by 11 Feet 6-1/2 Inches:
5f3ix
5 FEET 3 INCH
11f6i1/2=
60.59375 SQ FEET
Multiply 2 Feet 7 Inches by 10:
2f7ix10=
25 FEET 10 INCH
Dividing Dimensions
Divide 30 Feet 4 Inches by 7 Inches:
30f4i÷7i=
52.
Divide 20 Feet 3 Inches by 9:
20f3i÷9=
2 FEET 3 INCH
APPENDIX C – ACCURACY/ERRORS, AUTO
SHUT-OFF, BATTERIES, RESET
Error Codes
OVERFLOW
Overflow (too large)
MATH ERROR
Divide by 0
DIMENSION ERROR
Dimension error
ENTRY ERROR
Invalid entry error
Auto Shut-Off
Your calculator is designed to shut off after about 4 minutes of non-use.
Battery
The
Construction Master Plus EZ
uses one CR2025
(included). This should last approximately 800 hours of
actual use. Should your calculator display become very
dim or erratic, replace the battery.
Note:
Please use caution when disposing of your old battery, as it
contains hazardous chemicals. Replacement batteries are available
at most discount or electronics stores. You may also call Calculated
Industries at 1-775-885-4900.
Battery Replacement Instructions
While the calculator is off, turn the calculator over and use a
#1 Phillips screwdriver to remove the battery holder screw located near
the center at the top. With the screw removed, pull battery holder out,
remove old battery, and slide new battery into holder. The negative side of
the battery should be facing you as you insert the battery holder into the
calculator. Replace screw using a #1 Phillips screwdriver.
Reset
If your calculator should ever "lock up," insert the tip of a paperclip or a
small diameter wire into the small Reset hole above the
o
key.
REPAIR AND RETURN
Return Guidelines
1. Please read the Warranty in this User's Guide to determine if your Calcu
-
lated Industries product remains under warranty before calling or return
-
ing any device for evaluation or repairs.
2. If your product won't turn on, check the battery as outlined in the User's
Guide.
3. If you need more assistance, please go to the website listed below.
4. If you believe you need to return your product, please call a Calculated
Industries representative from 7 a.m. to 4 p.m. Pacific Time for additional
information and a Return Authorization (RA).
Call Toll Free: 1-800-854-8075
Outside USA: 775-885-4900
www.calculated.com/warranty
wARRANTY
Calculated Industries ("CI") warrants this product against defects in
materials and workmanship for a period of one (1) year from the date
of original consumer purchase in the U.S. If a defect exists during
the warranty period, CI at its option will either repair (using new or
remanufactured parts) or replace (with a new or remanufactured calculator)
the product at no charge.
