Calculated Industries 4320 User Manual

Pocket Reference Guide

➡

➡

Insert This

Direction

f

C

ONSTRUCTIONMASTER

®

H

EAVYCALC

™

ADVANCED FEET-INCH-FRACTION CALCULATOR

Model 4320

POCKET REFERENCE GUIDE — 1

Designed for today’s excavation and heavy
construction professional, the

Construction

Master®HeavyCalc

adds even more power

to the

Construction Master

line-up. As with
earlier models, this calculator is so simple
to use, even the novice will find it easy to
solve hundreds of dimension-related prob­lems in Feet, Inches, Fractions and Cubic
Yards!

• Solve Dimensional Math with Ease

• Instant Dimensional Conversions

• Imperial/Metric Conversions

• Weight/Volume Conversions

• Calculate Square and Rectangular Areas

• Find Cubic Volumes

• Determine % Grade and Slope

• Solve Cut and Fill

• Find Bank, Loose and Compact Volumes

• Instant Square-Up (Diagonal) Solutions

• Constant Add Feature

• Calculating Averages

• Material Estimations

• Paperless Tape

HEAVYCALC

™

POCKET REFERENCE GUIDE — 2

GETTING STARTED...............................3

Key Definitions.....................................3

Fractional Settings.............................11

Entering Dimensions .........................12

Conversions.......................................13

Basic Math Operations......................15

Percentage Calculations....................17

Memory Operation .............................18

Paperless Tape..................................20

USING THE HEAVYCALC ....................22

Linear Division...................................22

Linear Addition...................................22

Area Calculations ..............................23

Volume Calculations ..........................24

Right Triangle Problems....................29

Basic Cut/Fill Solutions......................34

Shrink and Swell Solutions —

Material Volume

.............................38

APPENDIX ............................................42

Accuracy/Errors.................................42

Battery and Auto Shut-Off.................44

Full Reset/All Clear............................44

Default Settings.................................44

Area Formulas...................................45

Surface Area and Volume Formulas..46

REPAIR AND RETURN.........................47

Warranty, Repair and Return

Information.......................................47

WARRANTY..........................................48

TABLE OF CONTENTS

POCKET REFERENCE GUIDE — 3

KEY DEFINITIONS
Basic Function Keys

+ – x Arithmetic operation keys.
÷ =

%

Percent Key

— Four-func-

tion (+, –, x, ÷) percent key.

0 – 9 Keys used for entering
and • numbers.

O

Off Key

— Turns all power
off, clearing all non-perma­nent registers.

o

On/Clear Key

— Turns on
power. Pressing once clears
the display. Pressing twice
clears all temporary values.

Ç

Convert Key

— Used with
the dimensional keys to
convert between dimen­sions or with other keys to
access special functions.

c

Constant Key

— This key
stores a value permanently.
Used as a constant in
repeated calculations.

GETTING STARTED

POCKET REFERENCE GUIDE — 4

Ç c

Square Root

— Used to
find the Square Root of a
non-dimensional or area
value.

µ

Memory Add Key

— Adds
the displayed number to the
value stored within the
semi-permanent Memory.

Ç µ

Memory Minus

—
Subtracts the displayed
value from Memory.

®

Recall Key

— Recalls val­ues stored in any register.
® µ displays the value
in Memory.

® ®

Memory Display/Clear

—
Displays the value in Memory
and clears the register.

Ç ®

Memory Clear

— Clears
the Memory without chang­ing the current display.

Dimension Keys

y

Yards Key

— This is an
entry and conversion key.
The entry can be a whole
number or a decimal num­ber. Used with the Ç key
converts any other dis­played dimensioned num­ber to Yards.

POCKET REFERENCE GUIDE — 5

f

Feet Key

— Enters or con-

verts to

Feet

as whole or
Decimal numbers. Also
used with the i and /
keys for entering Feet-Inch
values (e.g., 6 f 9 i
1 / 2). Repeated press­es during conversions tog­gle between Decimal Feet
and Feet-Inch-Fractions.

i

Inch Key

— Enters or con-

verts to

Inches

. Entry can
be whole or Decimal num­bers. Also used with the /
key for entering Fractional
Inch values (e.g., 9 i 1
/ 2). Repeated presses
during conversions toggle
between Fractional and
Decimal Inches.

/

Fraction Bar Key

— Used

to enter

Fractions

. Fractions
can be entered as proper
(1/2, 1/8, 1/16) or improper
(3/2, 9/8). If the denomina­tor (bottom) is not entered,
the calculator's fractional
accuracy setting is automat­ically used.

POCKET REFERENCE GUIDE — 6

C

Cubic Key

— This key is
used with a dimension key
(Feet, Inches, Yards,
Meters, etc.) to identify a
value as being a volume.

Example:

5 C y

S

Square Key

— This key is
used with a dimension key
(Feet, Inches, Yards,
Meters, etc.) to identify a
value as being an area.

Example:

1 0 S f

m

Meter Key

— Enters or

converts to

Meters.

M

Millimeter Key

— Enters or

converts to

Millimeters.

w

Weight Key

— Enters or

converts (a volume value) to

Tons, Pounds

or

Kilograms

.
Repeated presses will cycle
through these units.

Ç %

Weight/Volume

— Enters

or converts the

Weight

per Volume

setting as

Tons/Yard3, Lbs/Yd

3

or

kg/m

3

. Repeated presses
will cycle through these
settings.

POCKET REFERENCE GUIDE — 7

Area/Volume Keys

l

Length Key

— Enters the
value for Length in dimen­sion problems (e.g., for cal­culating Area or Volume).

Note: this key is also used to
enter the length for “Square­Ups.”

Ç l

Square-Up

— Calculates
the Diagonal, or “Square­Up,” based on entered
Length and Width.

W

Width Key

— Enters the
value for Width in dimension
problems (e.g., calculating
Area or Volume).

Note: this key is also used to
enter the width for “Square-Ups.”

Ç W

Percent Grade

— Used to
enter and/or solve Percent
Grade. Calculates Percent
Grade using entered values
for Width and Depth or
Slope.

d

Depth Key

— Enters the
value for Depth in dimen­sion problems. Calculates
Depth from entered values
of Width and Percent
Grade or Slope.

POCKET REFERENCE GUIDE — 8

Ç d

Slope

— Used to enter
Slope as a ratio of Run per
Unit Rise (e.g., 4:1), or in
Decimal Degrees (e.g.,
10°). Also calculates Slope
using entered value for
Width and Depth or Percent
Grade.

v

Volume Key

— Computes
the Volume (Length x Width
x Depth) in Cubic Yards
based on entered Length,
Width and Height values. A
second press will display
the area (in Square Feet)
based on entered Length
and Width. Successive
presses will toggle the dis­play between the calculated
Area and Volume.

Ç v

Area

— Computes the area
in Square Feet based on
entered Length and Width.

Excavation/Volume Keys

F Used to enter or calculate

the cut or fill amount. Based
on entries of proposed and
existing benchmarks. Afill
is displayed as a positive
value; a cut as a negative
value.

POCKET REFERENCE GUIDE — 9

e

Existing Key

— Used to
enter or calculate an exist­ing benchmark, Grade or
value.

p

Proposed Key

— Used to
enter or calculate a pro­posed benchmark, Grade
or value.

b

Bank Volume Key

—
Enters or calculates the vol­ume for bank fill material.
Bank fill is material in an
untouched, pristine state.

ç

Compacted Volume Key

— Enters or calculates the
volume for compacted fill
material. Compacted fill is
material that has been
compacted.

Ç ç

% Shrink

— Enters or
recalls percent shrink factor
for converting between bank
and compacted fill volumes.

L

Loose Volume Key

—
Enters or calculates the vol­ume for loose fill material.
Loose fill is material that
has been disturbed or
excavated.

Ç L

% Swell

— Enters or recalls
the percent swell factor used
for converting between
bank and loose volumes.

POCKET REFERENCE GUIDE — 10

Additional Functions

Ç ÷

Reciprocal

— 1/x function.

Ç x

All Clear (AC)

— Clears all
values, including Memory.
Resets all permanent set­tings to defaults.

Ç +

Pi (π)

— Constant = 3.141593.

Ç –

Positive/Negative Toggle
(+/–)

— Toggles the sign of
the displayed value between
positive and negative.

® =

Paperless Tape

—
Accesses the paperless
tape mode.

® x

Imperial/Metric Mode

—
Selects either Imperial or
Metric defaults for weight.

Ç •

Per

— Allows you to com­pute a total material cost
given a unit dimension and
an entered Per Unit Cost.

Ç 0

Degrees

— Used for enter­ing Slopes that are in
Decimal Degrees instead
of a ratio.

POCKET REFERENCE GUIDE — 11

FRACTIONAL SETTINGS
Setting Fractional Accuracy

When your calculator is in a default condi­tion (battery change or full reset), it is set
to round fractional values to the nearest
1/16th of an Inch. The fractional level can
be revised by using the following key­strokes:

Ç 1 = Accuracy set to 1/16”
Ç 2 = Accuracy set to 1/2”
Ç 3 = Accuracy set to 1/32”
Ç 4 = Accuracy set to 1/4”
Ç 6 = Accuracy set to 1/64”
Ç 8 = Accuracy set to 1/8”

A star (★) will appear in the bottom left of
the display when the calculator is turned
on, if the setting is different from the
default. The fractional setting can be dis­played at any time by pressing ® /.

Normal Fractional Mode

The default,

Normal Mode

(Ç 7),
reduces a fraction to its lowest common
denominator (for example, 8/16 rounds to
1/2). If a fraction is entered having a higher
fractional accuracy than the current setting,
the setting will be temporarily revised to
the level of accuracy of the entered value.

POCKET REFERENCE GUIDE — 12

Fixed Fractional Mode

In the

Fixed Mode

(Ç 9), fractional
results are displayed in the set fractional
value, not reduced. Entries of higher accu­racy values will be rounded to the nearest
Fraction of the accuracy setting (for exam­ple, for a Fraction level setting of 1/16, an
entry of 5 / 3 2 = will result in a dis­play of 3/16).

ENTERING DIMENSIONS
Linear Dimensions

When entering Feet-Inch values, enter
dimensions from largest to smallest —
Feet before Inches, Inches before
Fractions. Enter Fractions by entering the
numerator (top), pressing / (Fraction Bar
key) and then the denominator (bottom).

Note: If a denominator is not entered, the frac­tional setting value is used.

Examples of how linear dimensions are
entered:

DIMENSION KEYSTROKES

5 Yards 5 y
5 Feet 1-1/2 Inch 5 f 1 i 1 / 2

17.5 Meters 1 7 • 5 m

POCKET REFERENCE GUIDE — 13

Square and Cubic Dimensions

Examples of how Square and Cubic
dimensions are entered:

DIMENSION KEYSTROKES

5 Cubic Yards 5 C y
130 Square Feet 1 3 0 S f
33 Square Meters 3 3 S m

CONVERSIONS
Linear Conversions

Convert 14 Feet to other dimensions:

KEYSTROKE DISPLAY

1 4 f...

Ç y 4.666667

YD

f* 14 FEET 0 INCH
f 14. FEET
i 168. INCH
M 4267.2 MM
m 4.2672 M

Square Conversions

Convert 14 Square Feet to other Square
dimensions:

KEYSTROKE DISPLAY

1 4 S f...

Ç i 2016.

SQ INCH

y* 1.555556 SQ YD
m 1.300643 SQ M
M 1300643. SQ MM

* When performing conversions, Çonly has to
be pressed once.

POCKET REFERENCE GUIDE — 14

Cubic Conversions

Convert 14 Cubic Feet to other Cubic
dimensions:

KEYSTROKE DISPLAY

1 4 C f...

Ç i 24192. CU INCH
y 0.518519 CU YD
m 0.396436 CU M
M* 0.396436 CU M

* The calculator’s Auto-Range function forced
the answer to be in Meters, as it is out of the
calculator’s normal seven-digit range (see Auto­Range on page 43).

Weight Conversions

Convert 25 Tons to other weights:

KEYSTROKE DISPLAY

2 5 w...

Ç w 50000. LB
w 22679.62 kG
w 25. Ton

Weight per Volume Conversions

Your calculator has the capability of con­verting between Weight and Volume. The
Weight/Volume ratio is permanently stored
by entering the value and pressing Ç
%. The default value is 1.5 Tons per Cubic
Yard.

(Cont’d)

POCKET REFERENCE GUIDE — 15

(Cont’d)
Find the weight of 15 Cubic Yards at 1.75

Tons per Cubic Yard, then convert to other
weights:

KEYSTROKE DISPLAY

1 • 7 5 Ç % 1.75 Ton per CU YD
1 5 C y...

Ç w 26.25 Ton
w 52500. LB
w 23813.61 kG
w 26.25 Ton

BASIC MATH OPERATIONS

Your calculator uses standard chaining
logic, which simply means that you enter
your first value, the operator (+, –, x,
÷), the second value and then the Equal
sign (=).

A. 3 + 2 = 5
B. 3 – 2 = 1
C. 3 x 2 = 6
D. 3 ÷ 2 = 1.5

This feature also makes the calculator sim­ple to use for dimensional applications:

(Cont’d)

POCKET REFERENCE GUIDE — 16

(Cont’d)

Adding Dimensions

Add 11 Inches to 2 Feet 1 Inch:

KEYSTROKE DISPLAY

1 1 i + 2 f 1 i = *36 INCH

* The format of the first value entered determines
the answer format.

Ç

can be used to change to
any format desired, provided convention is main­tained.

Subtracting Dimensions

Subtract 3 Feet from 11 Feet 7-1/2 Inches:

KEYSTROKE DISPLAY

1 1 f 7 i 1 / 2 – 3 f =

8

FEET 7-1/2 INCH

Multiplying Dimensions

Multiply 5 Feet 3 Inches by 11 Feet 6-1/2
Inches:

KEYSTROKE DISPLAY

5 f 3 i x 1 1 f
6 i 1 / 2 = 60.59375

SQ FEET

Dividing Dimensions

Divide 30 Feet 4 Inches by 7 Inches:

KEYSTROKE DISPLAY

3 0 f 4 i ÷ 7 i = 52.

Divide 20 Feet 3 Inches by 9:

KEYSTROKE DISPLAY

2 0 f 3 i ÷ 9 = 2 FEET 3 INCH

POCKET REFERENCE GUIDE — 17

PERCENTAGE CALCULATIONS

The Percent 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).

Computing Percentages

Find 18% of 500 Feet:

KEYSTROKE DISPLAY

5 0 0 f x 1 8 % 90 FEET 0 INCH

Add 10% to 137 Square Feet:

KEYSTROKE DISPLAY

1 3 7 S f + 1 0 % 150.7 SQ FEET

Take 20% from 552 Feet 6 Inches:

KEYSTROKE DISPLAY

5 5 2 f 6 i – 2 0 %

442 FEET 0 INCH

Divide 350 Cubic Yards by 80%:

KEYSTROKE DISPLAY

3 5 0 C y ÷ 8 0 % 437.5 CU YD

POCKET REFERENCE GUIDE — 18

MEMORY OPERATION

Whenever the µ key is pressed, the dis­played value will be added to the Memory.
Other Memory functions:

FUNCTION KEYSTROKES

Add to Memory µ
Subtract from Memory Ç µ
Recall total in Memory ® µ
Display/Clear Memory ® ®
Clear Memory Ç ®
Replace Memory Ç ® µ

Memory is semi-permanent, clearing only
when you:

1) Turn off the calculator;

2) Press ® ®;

3) Press Ç ®;

4) Press Ç x

(all clear)

.

Examples:

KEYSTROKE DISPLAY

3 5 5 µ 355.
2 5 5 µ 255.
7 4 5 Ç µ 745.
® ® – 135.
1 0 f 5 i µ 10 FEET 5 INCH
5 f 3 i µ 5 FEET 3 INCH
® ® 15 FEET 8 INCH

M

M

M

M

M

POCKET REFERENCE GUIDE — 19

Averaging

The Memory Key (µ) is also capable of
displaying the average and totals as well
as the number (count) of values entered.
This is achieved by repeated presses of
µ after recalling the stored total value
in Memory.

Example:

KEYSTROKE DISPLAY

1 µ 1.
2 µ 2.
3 µ 3.
4 µ 4.
5 µ 5.
® µ 15.
µ AVG 3.
µ CNT 5.
® ® 15.

M

M

M

M

M

M

M

M

POCKET REFERENCE GUIDE — 20

PAPERLESS TAPE

The Paperless Tape allows the user to dis­play and review the last 20 entries of a cal­culation. ® = accesses the Tape func­tion and + or – scrolls forward or back­ward through the entries.

While working with the Paperless Tape
function, the display will show the entered
or calculated value, along with the
sequence number of entry (e.g., 01, 02,

03, etc.) and the math operator (+, –, x, ÷,
%) in the upper left corner of the display. If

= has been used in the middle of a string,

SUB (for Subtotal) will display in the upper
left. If = was the last operation performed,
the display will show TTL (Total) as the
last entry.

Pressing any key other than O, + or –
exits the Paperless Tape function. The last
entry made (or TTL) will be displayed,
allowing you to either exit completely, or to
continue using the last tape value for
another operation.

Note: The Paperless Tape is cleared each time

o

is pressed twice, the unit is shut off, or an

All Clear is performed.

POCKET REFERENCE GUIDE — 21

Previewing Paperless Tape

KEYSTROKE DISPLAY

1. Enter a string of numbers:

4 f + 4 FEET 0 INCH
5 f + 9 FEET 0 INCH
6 f + 15 FEET 0 INCH
7 f = 22 FEET 0 INCH

2. Access the Tape function:

® = TTL= 22 FEET 0 INCH

3. Scroll from first value to total:

+ 01 4 FEET 0 INCH
+ 02+ 5 FEET 0 INCH
+ 03+ 6 FEET 0 INCH
+ 04+ 7 FEET 0 INCH
+ TTL= 22 FEET 0 INCH

4. Scroll to last two values:

– 04+ 7 FEET 0 INCH
– 03+ 6 FEET 0 INCH

5. Exit Tape function and continue:

=* TTL= 22 FEET 0 INCH
+ 22 FEET 0 INCH
2 f = 24 FEET 0 INCH

* Can press any key besides O, +or –.

POCKET REFERENCE GUIDE — 22

LINEAR DIVISION
Spacing Calculation

You have a 78 Feet 6 Inch length of wall
which you want to divide into five equal
spaces for office partitioning. What is the
Length of each section?

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

2. Enter overall Length:

7 8 f 6 i 78 FEET 6 INCH

3. Divide by number of equal spaces:

÷ 5 = 15 FEET 8-3/8 INCH

4. Convert to Decimal Feet then Decimal
Inches:

Ç f 15.7 FEET
Ç i 188.4 INCH

LINEAR ADDITION
Building Perimeter

You are measuring a building perimeter
with the following measurements: 32 Feet,
25 Feet 5-1/2 Inches, 19 Feet, 5 Feet 6­1/2 Inches, 13 Feet, and 31 Feet. What is
the total Perimeter?

(Cont’d)

USING THE HEAVYCALC

POCKET REFERENCE GUIDE — 23

(Cont’d)

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

2. Add sides to find Perimeter:

3 2 f + 32 FEET 0 INCH
2 5 f 5 i 1 / 2 +

57 FEET 5-1/2 INCH

1 9 f + 76 FEET 5-1/2 INCH
5 f 6 i 1 / 2 +

82 FEET 0 INCH

1 3 f + 95 FEET 0 INCH
3 1 f = 126 FEET 0 INCH

AREA CALCULATIONS
Area of a Rectangle

What is the area of a room measuring 12
Feet 6 Inches by 15 Feet 8 Inches?

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

2. Enter Length and Width:

1 2 f 6 i l

LNTH 12 FEET 6 INCH

1 5 f 8 i W

WDTH 15 FEET 8 INCH

3. Find Area:

Ç v AREA 195.8333 SQ FEET

POCKET REFERENCE GUIDE — 24

VOLUME CALCULATIONS
Simple Concrete Volume

You need to calculate the Cubic Yards of
concrete required for pouring a driveway.
The measurements are as follows: 36 Feet
3 Inches by 11 Feet 6 Inches by 4 Inches
deep. What’s the Volume of the driveway?
If concrete costs $47 per Cubic Yard, how
much will the concrete cost?

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

2. Enter Length, Width and Depth, then
find Volume in Cubic Yards:

3 6 f 3 i l
1 1 f 6 i W
4 i d
v VOL 5.146605 CU YD

3. Multiply by price per Cubic Yard to find
total cost:

x 4 7 Ç • $ 241.89 Per

POCKET REFERENCE GUIDE — 25

Topsoil Volume

You are measuring a building perimeter for
calculating topsoil excavation. If the build­ing measurements are 45 Feet by 23 Feet,
and the depth of topsoil to be removed is
8 Inches, what is the building area and
volume of topsoil to be removed?

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

2. Enter Length and Width of building:

4 5 f l LNTH 45 FEET 0 INCH
2 3 f W WDTH 23 FEET 0 INCH

3. Find building Area:

Ç v AREA 1035 SQ FEET

4. Enter Depth to be removed:

8 i d DPTH 8 INCH

5. Find Volume of topsoil:

v VOL 25.55556 CU YD

POCKET REFERENCE GUIDE — 26

Complex Concrete Volume

You’re going to pour an odd-shaped patio
4-1/2 Inches deep with the dimensions as
shown. First, calculate the total area (by
dividing the drawing into three individual
rectangles) and then determine the total
Cubic Yards of concrete required for this
job. What is the total cost of the concrete
if it is selling for $55 per Cubic Yard?

(Cont’d)

A

B

C

27’ 0”

38’ 2”

8’ 6”

9’ 0”

4’ 2”

9’ 6”

Dgm-CCV-103

POCKET REFERENCE GUIDE — 27

(Cont’d)

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

2. Find area “A” and add to Memory:

3 8 f 2 i 38 FEET 2 INCH
– 4 f 2 i = l

LNTH 34 FEET 0 INCH

2 7 f W WDTH 27 FEET 0 INCH
Ç v AREA 918. SQ FEET
µ 918. SQ FEET

3. Find area “B” and add to Memory:

4 f 2 i l

LNTH 4 FEET 2 INCH

8 f 6 i W

WDTH 8 FEET 6 INCH

Ç v AREA 35.41667 SQ FEET
µ 35.41667 SQ FEET

4. Find area “C” and add to Memory:

9 f l LNTH 9 FEET 0 INCH
9 f 6 i W

WDTH 9 FEET 6 INCH

Ç v AREA 85.5 SQ FEET
µ 85.5 SQ FEET

5. Find Total Area/Volume and cost:

® ® 1038.917 SQ FEET
x 4 i 1 / 2 =

389.5938 CU FEET

Ç y 14.4294 CU YD
x 5 5 Ç • $793.62 Per

M

M

M

M

M

M

M

M

M

POCKET REFERENCE GUIDE — 28

Trench Volume

You’re digging a trench that is 345 Feet
long, 24 Inches wide and 6 Feet deep.
Find the Volume of soil removed.

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

2. Enter Length, Width and Depth of
trench:

3 4 5 f l

LNTH 345 FEET 0 INCH

2 4 i W WDTH 24 INCH
6 f d DPTH 6 FEET 0 INCH

3. Find removed dirt Volume:

v VOL 153.3333 CU YD

POCKET REFERENCE GUIDE — 29

RIGHT TRIANGLE PROBLEMS

The calculator’s top row of keys provides
built-in solutions to Square-Up, Drop,
Percent Grade and Slope problems.

Square-up

is calculated from the values
entered as length and width and is the
diagonal length in a Right Triangle.

Slope and Percent Grade

are calculated
using the values for width and depth, or
drop. Slope can be entered as either a
ratio of Run per Unit Rise, or as a Decimal
Degree. Percent Grade is entered as a
percentage value. The following diagram
shows the relationship of these features.

Slope Ratio = Width:Unit Depth

Percent Grade =

Depth
Width

x 100%

Dgm-RTP-108

POCKET REFERENCE GUIDE — 30

Squaring a Concrete Slab

Assume you want to “Square-Up” the
forms for a concrete foundation measuring
45 Feet 6 Inches by 24 Feet 4 Inches. To
square the forms, find the Square-Up
(Diagonal) length. If the slab is 4 Inches
thick, find the Area and Volume.

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

2. Enter Length, Width and Depth:

4 5 f 6 i l

LNTH 45 FEET 6 INCH

2 4 f 4 i W

WDTH 24 FEET 4 INCH

4 i d DPTH 4 INCH

3. Solve for Square-up:

Ç l SQUP 51 FEET 7-3/16 INCH

4. Solve for Area and Volume:

Ç v AREA 1107.167 SQ FEET
v VOL 13.66872 CU YD

24’ 4”

45’ 6”

Square-Up (Diagonal)

Dgm-SUD-105A

POCKET REFERENCE GUIDE — 31

Finding Lot Width

What is the width of a lot that has a 5
Degree Slope and a total Drop of 2 Feet?

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

2. Enter Slope and Drop:

5 Ç 0 Ç d SLP 5°
2 f d DPTH 2 FEET 0 INCH

3. Solve for Width:

W WDTH 22 FEET 10-5/16 INCH

Note: Slope and % Grade work with Width and
Depth, not Length.

POCKET REFERENCE GUIDE — 32

Finding Drop or Fall

What is the total Drop over 25 Feet for a
4:1 Slope? For a 5 Degree Slope? For a
5% Grade?

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

Solve Drop Using Slope ratio

2. Enter 4:1 Slope and Width:

4 Ç d SLP 4.
2 5 f W WDTH 25 FEET 0 INCH

3. Solve for Drop:

d DPTH 6 FEET 3 INCH

Solve Drop Using Slope degree

4. Enter 5° Slope:

5 Ç 0 Ç d SLP 5°

5. Solve for Drop:

o d DPTH 2 FEET 2-1/4 INCH

Solve Drop Using Percent Grade

6. Enter 5% Grade:

5 Ç W %GRD 5.

7. Solve for Drop:

o d DPTH 1 FEET 3 INCH

POCKET REFERENCE GUIDE — 33

Finding Slope Ratio/Percent Grade

What is the Slope Ratio and Percent
Grade of a lot that drops 3 Feet 6 Inches
over 20 Feet?

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

Solve for degree of Slope

2. Enter Drop (as Depth):

3 f 6 i d

DPTH 3 FEET 6 INCH

3. Enter Distance (Width):

2 0 f W WDTH 20 FEET 0 INCH

4. Find Degree of Slope:

Ç d SLP 9.926246°

Solve for Slope ratio

5. Find Slope Ratio:

d SLP 5.714286

Solve for Percent Grade

6. Find Percent Grade:

Ç W %GRD 17.5

POCKET REFERENCE GUIDE — 34

BASIC CUT/FILL SOLUTIONS
Finding Cut or Fill —

Exercise 1

Find the cut/fill marks or changes of eleva­tions for a lot with a proposed elevation of

4.0 Feet and existing elevations of 3.0
Feet, 4.5 Feet and 6.0 Feet.

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

Solve for First Cut/Fill mark

2. Enter proposed elevation:

4 f p PROP 4 FEET 0 INCH

3. Enter first existing elevation:

3 f e EXST 3 FEET 0 INCH

4. Find first Cut/Fill:

F FILL 1 FEET 0 INCH

Solve for Second Cut/Fill mark

5. Enter second existing elevation:

4 • 5 f e EXST 4.5 FEET

6. Find second Cut/Fill:

F CUT – 0.5 FEET

Solve for Third Cut/Fill mark

7. Enter third existing elevation:

6 f e EXST 6 FEET 0 INCH

8. Find third Cut/Fill:

F CUT – 2 FEET 0 INCH

POCKET REFERENCE GUIDE — 35

Finding Cut or Fill —

Exercise 2

Find the cut/fill marks for a lot that has a
proposed elevation of 15.5 Feet, and the
following existing elevations: 17.3 Feet,

20.7 Feet, 25.5 Feet and 11.8 Feet.

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

Solve for First Cut/Fill mark

2. Enter proposed elevation:

1 5 • 5 f p PROP 15.5 FEET

3. Enter first existing elevation:

1 7 • 3 f e EXST 17.3 FEET

4. Find First Cut/Fill:

F CUT – 1.8 FEET

Solve for Second Cut/Fill mark

5. Enter second existing elevation:

2 0 • 7 f e EXST 20.7 FEET

6. Find second Cut/Fill:

F CUT – 5.2 FEET

Solve for Third Cut/Fill mark

7. Enter third existing elevation:

2 5 • 5 f e EXST 25.5 FEET

8. Find third Cut/Fill:

F CUT – 10. FEET

Solve for Fourth Cut/Fill mark

9. Enter fourth existing elevation:

1 1 • 8 f e EXST 11.8 FEET

10. Find fourth Cut/Fill:

F FILL 3.7 FEET

POCKET REFERENCE GUIDE — 36

Cubic Yards of Cut/Fill
—

Grid Cell Method

The four corner elevations of a Grid cell
are 75.4 Feet, 77.5 Feet, 74.6 Feet, and

80.5 Feet. If the proposed elevation is 83
Feet, and the Area of the Grid is 2,000
Square Feet, what is the Volume (in Cubic
Yards) of cut or fill required for this Grid
cell?

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

Find average Existing Grid Elevation

2. Enter first through fourth elevation (in
Memory):

7 5 • 4 f µ 75.4 FEET
7 7 • 5 f µ 77.5 FEET
7 4 • 6 f µ 74.6 FEET
8 0 • 5 f µ 80.5 FEET

3. Find total:

® µ 308. FEET

4. Find average:

µ AVG 77. FEET

Solve for Cut or Fill

5. Enter average as existing elevation:

= e EXST 77. FEET

(Cont’d)

M

M

M

M

M

M

M

POCKET REFERENCE GUIDE — 37

(Cont’d)

KEYSTROKE DISPLAY

6. Enter proposed elevation:

8 3 f p

PROP 83 FEET 0 INCH

7. Find Cut or Fill:

F FILL 6 FEET 0 INCH

Solve for Grid Volume

8. Enter Grid Area and find Volume:

x 2 0 0 0 S f =

12000 CU FEET

9. Convert to Cubic Yards:

Ç y 444.4444 CU YD

M

M

M

M

POCKET REFERENCE GUIDE — 38

SHRINK and SWELL SOLUTIONS
—

MATERIAL VOLUME

The

HeavyCalc

is able to convert among
Bank Fill, Compacted Fill and Loose (or
trucked) Fill soil Cubic Yard Volumes.
Once values for %-Shrink and %-Swell are
entered, converting among these volumes
is done with the press of a single key.
Entered values for Percent Shrink and
Percent Swell will remain in Memory until
they are revised or reset by using Ç x.

POCKET REFERENCE GUIDE — 39

Finding Loose Volume

How much dry gravel will be trucked out of
a hole to be dug that measures 10 Feet
long by 35 Feet wide by 15 Feet deep?
Assume dry gravel has a swell factor of
15%.

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

Solve Bank Fill Volume

2. Enter Length, Width and Depth:

1 0 f l LNTH 10 FEET 0 INCH
3 5 f W WDTH 35 FEET 0 INCH
1 5 f d DPTH 15 FEET 0 INCH

3. Solve for Volume:

v VOL 194.4444 CU YD

4. Enter as Bank Volume:

= b BANK 194.4444 CU YD

Solve Loose Fill Volume

5. Enter 15% swell factor:

1 5 Ç L % SWL 15.

6. Find Loose Volume:

L LOOS 223.6111 CU YD

POCKET REFERENCE GUIDE — 40

Finding Trucked Volume/Weight
—

Both Swell and Shrink Factors

You need to move wet sand from one
location to another that requires a 4-Inch
fully compacted fill under a 125 Feet long
by 75 Feet wide slab. What is the trucked
(loose fill) Volume? Assume a Swell Factor
of 5% and a Shrink Factor of 10%. What is
the total weight of the sand if it weighs

1.55 Tons per Cubic Yard?

KEYSTROKE DISPLAY

1. Clear calculator:

o o 0.

2. Enter Shrink/Swell Factors:

5 Ç L %SWL 5.
1 0 Ç ç %SHR 10.

3. Enter Length, Width and Depth:

1 2 5 f l

LNTH 125 FEET 0 INCH

7 5 f W WDTH 75 FEET 0 INCH
4 i d DPTH 4 INCH

4. Find Compacted Fill Volume and enter
into Compacted Volume:

v = ç COMP 115.7407 CU YD

5. Find Loose Volume:

L LOOS 135.0309 CU YD

6. Enter Unit Weight:

1 • 5 5 Ç % 1.55 Ton Per CU YD

(Cont’d)

POCKET REFERENCE GUIDE — 41

(Cont’d)

KEYSTROKE DISPLAY

7. Recall Bank Volume:

b BANK 128.6008 CU YD

8. Find Weight:

w 199.3313 Ton

9. Reset calculator:

Ç x 0.

POCKET REFERENCE GUIDE — 42

ACCURACY/ERRORS
Accuracy/Display Capacity

Your calculator has an eleven digit display.
This is made up of seven digits (normal
display) and four digits for the fraction. In a
standard calculation, each calculation is
carried out internally to ten digits and
rounded to a seven-digit standard display.
If the next undisplayed digit is five or more,
the 5/4 rounding technique adds one to the
least significant digit in the display. If the
digit is less than five, no rounding occurs.

Errors

When an incorrect entry is made, or an
answer is beyond the calculator’s range,
the word “Error” displays. To clear an error
you must hit the o key twice. When you
have determined what caused the error,
re-key the problem. An “Error” will also
occur if you enter a mathematical impossi­bility such as division by zero.

APPENDIX

POCKET REFERENCE GUIDE — 43

Auto-Range

If an “overflow” occurs due to an input or
calculation that use more digits than the
display’s standard seven-digit range, the
answer automatically displays in the next
larger unit (instead of showing “Error”). i.e.,

10,000,000 mm

is greater than the seven-

digit range; therefore,

10,000 m

is displayed
instead. This auto-ranging also applies to
other dimensional units such as Inches to
Feet, Feet to Yards, etc.

POCKET REFERENCE GUIDE — 44

BATTERY and AUTO SHUT-OFF

Your calculator is powered by a single
three-Volt Lithium CR-2016 battery. This
should last approximately 800 hours of
actual use (one year plus for most people).
Should the display 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 Ç 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.
Fractional Setting 1/16”
Fractional Mode Normal

POCKET REFERENCE GUIDE — 45

AREA FORMULAS

Dgm-AF-100

POCKET REFERENCE GUIDE — 46

SURFACE AREA and VOLUME
FORMULAS

Dgm-VF-101

POCKET REFERENCE GUIDE — 47

WARRANTY, REPAIR and RETURN
INFORMATION

Return Guidelines

1. Please read the Warranty in this User’s

Guide to determine if your Calculated
Industries calculator, measuring device
or electronic tool remains under warranty

before

calling or returning any device

for evaluation or repairs.

2. If your calculator won’t turn on, try

pressing the “Reset Button” first. If it
still won't turn on, check the batteries
as outlined in the User's Guide.

3. If there is a black spot on the LCD

screen, THIS IS NOT A WARRANTY
DEFECT. The unit can be repaired.
Call for a repair quote before return­ing your unit.

4. If you need more assistance, please go

to our website at www.calculated.com
and click on Support, then Repair
Services FAQs.

5. If you believe you need to return your

calculator, please speak to a Calculated
Industries representative for additional
information!

Call Toll Free:1-800-854-8075

REPAIR AND RETURN

POCKET REFERENCE GUIDE — 48

Non-Warranty Repair Service –

U.S.A.

Non-warranty repair covers service beyond the warranty
period, or service requested due to damage resulting
from misuse or abuse.

Contact Calculated Industries at the number listed on the
last page of this guide to obtain current product repair
information and charges. Repairs are guaranteed for 90
days.

WARRANTY

Warranty Repair Service –

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.

THE WARRANTY WILL NOT APPLYTO THE PRODUCT
IF IT HAS BEEN DAMAGED BY MISUSE, ALTERATION,
ACCIDENT, IMPROPER HANDLING OR OPERATION,
OR IF UNAUTHORIZED REPAIRS ARE ATTEMPTED
OR MADE. SOME EXAMPLES OF DAMAGES NOT
COVERED BY WARRANTY INCLUDE, BUT ARE NOT
LIMITED TO, BATTERY LEAKAGE, BENDING, OR VISI­BLE CRACKING OF THE LCD, WHICH ARE PRE­SUMED TO BE DAMAGES RESULTING FROM MISUSE
OR ABUSE.

To obtain warranty service in the U.S., ship the product
postage paid to Calculated Industries (address listed on
the last page). Please provide an explanation of the serv­ice requirement, your name, address, day phone number
and dated proof of purchase (typically a sales receipt). If
the product is over 90 days old, include payment of $7.95
for return shipping and handling within the contiguous 48
states. (Outside the contiguous 48 states, please call CI
for return shipping costs.)

A repaired or replacement product assumes the remain­ing warranty of the original product or 90 days, whichever
is longer.

U.S.A.

POCKET REFERENCE GUIDE — 49

Repair Service –

Outside the U.S.A.

To obtain warranty or non-warranty repair service for
goods purchased outside the U.S., contact the dealer
through which you initially purchased the product. If you
cannot reasonably have the product repaired in your
area, you may contact CI to obtain current product repair
information and charges, including freight and duties.

Disclaimer

CI MAKES NO WARRANTY OR REPRESENTATION,
EITHER EXPRESS OR IMPLIED, WITH RESPECT TO
THE PRODUCT’S QUALITY, PERFORMANCE, MER­CHANTABILITY, OR FITNESS FOR A PARTICULAR
PURPOSE. AS ARESULT, THIS PRODUCT, INCLUD­ING BUT NOT LIMITED TO, KEYSTROKE PROCE­DURES, MATHEMATICALACCURACY AND PREPRO­GRAMMED MATERIAL, IS SOLD “AS IS,” AND YOU
THE PURCHASER ASSUME THE ENTIRE RISK AS TO
ITS QUALITY AND PERFORMANCE.

IN NO EVENT WILL CI BE LIABLE FOR DIRECT, INDI­RECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES RESULTING FROM ANY DEFECT IN THE
PRODUCT OR ITS DOCUMENTATION.

The warranty, disclaimer, and remedies set forth above
are exclusive and replace all others, oral or written,
expressed or implied. No CI dealer, agent, or employee
is authorized to make any modification, extension, or
addition to this warranty.

Some states do not allow the exclusion or limitation of
implied warranties or liability for incidental or consequen­tial damages, so the above limitation or exclusion may
not apply to you. This warranty gives you specific rights,
and you may also have other rights, which vary from
state to state.

POCKET REFERENCE GUIDE — 50

FCC Class B

This equipment has been certified to comply with the lim­its for a Class B computing device, pursuant to Subpart J
of Part 15 of FCC rules.

Looking For New Ideas

Calculated Industries, a leading manufacturer of special­function calculators and digital measuring instruments, is
always looking for new product ideas in these areas.

If you have an idea, or a suggestion for improving this
product or User's Guide, please submit your comments
online at www.calculated.com under “Contact Us,”
“Product Idea.” Thank you.

4840 Hytech Drive

Carson City, NV 89706 U.S.A

1-800-854-8075 • Fax: [phone]

E-mail: [e-mail]

www.calculated.com

Printed In China

4320PRG-E-A

6/04