Calculated Industries 4045 User manual

Brand: Calculated Industries

Model: 4045

Category: Calculators

Type: User manual

This manual is also suitable for

Construction Master IV

User’s Guide

CONSTRUCTION MASTER

For Today’s Construction Professional

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INTRODUCING:

THE CONSTRUCTION MASTER IV

Designed for busy construction professionals,

the new Construction Master IV lets you solve

hundreds of dimension-related problems

quickly and accurately in Metric or feet-inch

formats!

◆ Solve Dimensional Math with Ease

◆ Instant Dimensional Conversions

◆ Complete Metric/Imperial Conversions

◆ Calculate Square and Rectangular Areas

◆ Find Cubic Volumes

◆ Solve Right-Triangle problems

◆ Find Regular and Irregular Hip/Valley

Rafters

◆ Find Regular and Irregular Jack Rafters

◆ Calculate Stair Risers, Treads and Stringers

◆ Solve Rake-Wall Stud Lengths

◆ Convert between Volume and Weight

◆ Estimate Board Feet

◆ Find Circular Areas, Circumferences, Arcs

◆ Material Estimations

◆ Paperless Tape Function

◆ And much, much more!

3 — User’s Guide

KEY DEFINITIONS/FUNCTIONS

Basic Functions

[+] [–] [x]

[÷] [=] Arithmetic operation keys.

[%] Four-function percent key.

0 – 9 Digits used for keying-in numbers.

[ • ] Decimal point.

[Off]

Turns all power off. Resets the dis-

play and all non-permanent registers.

[On/C] Turns on power. Pressing once

clears the last entry and the dis-

play. Pressing twice in succession

clears all temporary registers.

[Conv]

Used to convert between dimen-

sions. Dimensions can only be con-

verted within the same convention

(i.e., linear, square or cubic). Also

used to access special functions.

GETTING STARTED

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Used to find the square root of a

number.

[Conv]

x2 — Finds the square of the dis-

played value.

[M+] Memory Plus — Stores the dis-

played number in the semi-perma-

nent Memory. Also adds the

displayed number to any previous-

ly stored value in Memory. The

total stored in Memory is recalled

by pressing [Rcl] prior to [M+].

[Conv]

[M+] Memory Minus (M–) — Subtracts

the displayed value from Memory.

[Rcl] Recall — Recalls values stored in

any register (i.e., press [Rcl] and

then the key you wish to display

the value of). [Rcl] [M+] displays

Memory content.

[]

5 — User’s Guide

******************************************

[Rcl] [x] Imperial/Metric Mode — Selects

either Imperial or Metric defaults

for the following settings: pitch,

stair riser height, and on-center spac-

ing for jack rafters and rake-walls.

Note: This is a permanent setting

cleared only by removing batteries

or manually resetting.

******************************************

[Conv]

[Rcl] Memory Clear — Clears the

Memory without changing the

current display.

Dimension Keys

[Yds] Yards — This is an entry and con-

version key (when used with

[Conv]).

[Feet] Feet — This is an entry and con-

version key (when used with

[Conv]). This key can also be used

in conjunction with the [Inch] and

[/] keys for entering in Feet-Inch-

Fractions.

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[Inch] Inches — This is an entry and con-

version key (when used with

[Conv]). This key can also be used

in conjunction with the [/] key for

entering values in Fractional Inch

format.

[/] Fraction Bar — This key is used to

enter fractions. For example, to

enter 1/2, the key sequence would

be: 1 [/] 2.

[Cu] Cubic — This key is used with a

dimension key to identify a value

as being a volume.

Example: 5 [Cu] [Yds].

[Sq] Square — This key is used with a

dimension key to identify a value

as being an area.

Example: 10 [Sq] [Meters].

[m] Meters — This is an entry and con-

version key used to enter decimal

meters or to convert decimal

meters.

[cm] Centimeters — Entry and conver-

sion key for centimeters. Operates

the same as metric.

7 — User’s Guide

[mm] Millimeters — Entry and conver-

sion key for millimeters. Operates

the same as metric.

[Bd Ft] Board Feet — This key is used to

enter or convert cubic values to

board feet (using [Conv]). One

board foot is equal to 144 cubic

inches (1 inch x 1 foot x 1 foot).

[Weight] Weight — This key is used to con-

vert volume to a weight value using

the [Conv] key and the stored

Weight per Volume factor (see

below). Press repeatedly to toggle

between tons, pounds and kilo-

grams.

[Conv]

[%]

Weight per Volume — Used to set the

Weight per Volume factor. Factor

can be entered as Kilograms per

Cubic Meter, Tons per Cubic Yard,

or Pounds per Cubic Yard. To set a

different weight per volume, i.e.,

2150 Kilograms per Cubic Meter,

press 2150 [Conv] [%] [%] [%].

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Right Triangle/Rafter Keys

[Pitch] Pitch — This key is used to per-

manently enter or calculate the

pitch (slope) of a roof (or right tri-

angle). Pitch may be entered as an

inch format (9 [Inch] [Pitch]), or

as an angle in degrees (i.e., 30

[Pitch] for 30°), or also as a unit-

less ratio (0.75 [Conv] [Pitch]).

[Rise] Rise — This key enters or calcu-

lates the rise or vertical leg of a

right triangle.

[Run] Run — This key enters or calcu-

lates the run or horizontal leg (or

base) of a right triangle.

9 — User’s Guide

[Diag] Diagonal — This key enters or

calculates the diagonal leg or

hypotenuse of a right triangle.

[Conv]

[Diag] Rake-Wall — This function finds

the decreasing stud sizes in a rake-

wall based on computed or entered

values for pitch, rise and/or run.

Repeated presses of [Diag] will dis-

play the descending stud sizes from

longest to shortest.

The on-center spacing of a rake-

wall can be permanently stored by

entering a dimension prior to solv-

ing for stud sizes (for example, 750

[mm] [Conv] [Diag]

will store 750

millimeters as the on-center spac-

ing). Default on-center spacing is

600 millimeters in Metric Mode

(16 inches in English Mode).

[Hip/V] Hip/Valley — Finds the regular (45°)

hip/valley rafter length based on

entered or solved values for Pitch,

Rise, Run and/or Diagonal. If this

key is pressed after an irregular pitch

entry (see below), the length of the

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irregular (non-45°) hip/valley rafter

is displayed. Answers will show an

“I” on the display to indicate if it’s

an irregular.

[Conv]

[Hip/V] Irregular Pitch — Stores the irreg-

ular pitch or slope value for calcu-

lating lengths of the irregular

hip/valley and irregular jack rafters.

For instance, to enter a 38° irregu-

lar pitch or slope, press 38 [Conv]

[Hip/V] (or, to enter a ten inch

irregular pitch, enter 10 [Inch]

[Conv] [Hip/Valley]). To recall

the irregular pitch, press [Rcl]

[Conv] [Hip/Valley]. An irregular

pitch is designated with an “I”.

11 — User’s Guide

[Jack] Jack Rafter — Used to find the jack

rafter sizes—from largest to small-

est—for both regular and irregular

roofs based on entered values for

Pitch, Rise, Run and/or Diagonal,

jack on-center, and (optionally)

irregular pitch (see above). Use

[Conv] [Jack] to access the irregu-

lar jack rafter mode.

The default on-center spacing for

jacks is 600 millimeters in Metric

Mode. A new on-center spacing

can be permanently set by entering

a dimension before pressing

[Jack]. For example, 750 [mm]

[Jack] will store a 750 millimeter

on-center spacing.

[Conv]

[Jack] Irregular Jack — Accesses the irreg-

ular jack rafter mode, allowing suc-

cessive presses of the [Jack] key

(after [Conv] [Jack] is initially

pressed) to display the descending

irregular jack rafter lengths—from

longest to shortest. Based on

entered irregular pitch and on-cen-

ter spacing.

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Stair and Circle Keys

[Stair] A multi-function key that displays

the following values when pressed

repeatedly:

Number of Presses

Result

1 Number of Risers

2 Actual Riser Height

3 Riser Overage/Underage

4 Number of Treads

5 Actual Tread Width

6 Tread Overage/Underage

7 Stringer Length

8 Inclination Angle

9 Default Riser Height

13 — User’s Guide

When the [Stair] key is preceded

by a linear or undimensioned

entry, the value will be permanent-

ly stored as the “Desired Riser

Height”. Undimensioned values

are assumed to be millimeters

when in Metric Mode or inches if

in English Mode. Default = 185

millimeters for Metric Mode (7-

1/2 inches for English Mode).

[Circ] Circle — Based on an entered

dimensioned diameter, repeated

presses display the following circu-

lar values: 1) diameter, 2) surface

area 3) circumference.

[Conv]

[Circ] Arc Length — Used to find the arc

length based on an entered diame-

ter and angle. For example: 50

[mm] [Circ] 180 [Conv] [Circ]

would display an Arc length of

78.53982 millimeters for an

entered diameter of 50 millimeters

and a 180° angle.

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Additional [Conv] Key Functions:

When used in conjunction with the follow-

ing keys, the [Conv] key gives access to these

additional functions:

[Conv]

[÷] Reciprocal, or 1/x function.

[Conv]

[x] All-Clear — Clears all values

including Memory. Resets all per-

manent registers to default settings

(pitch, jack rafter and rake-wall on-

center values, stair riser height,

fraction set).

[Conv]

[+] Pi (π) Constant = 3.141593.

[Conv]

[–] +/– Changes the sign of the dis-

played value.

[Conv]

[=] Tape — Accesses the paperless tape

mode.

[Conv]

[•] Per Unit — Allows you to calculate

a total material cost given a unit

dimension and an entered Per Unit

Cost.

15 — User’s Guide

Fractional

Rounding

Settings:

When your calculator is in a

default condition (after a battery

change or full reset), it is set to

round fractional values to the near-

est 1/16 of an inch. However, you

may program your preference for

six different accuracy levels which

remain in permanent memory

until revised or reset. To change the

fractional rounding, press:

[Conv] 1 Fraction set to 1/16

[Conv] 2 Fraction set to 1/2

[Conv] 3 Fraction set to 1/32

[Conv] 4 Fraction set to 1/4

[Conv] 6 Fraction set to 1/64

[Conv] 8 Fraction set to 1/8

ENTERING DIMENSIONS

All examples are performed in Metric Mode

(press [Rcl] [x] to see “METR” on display).

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Linear Dimensions

Below are some examples of how linear

dimensions are entered:

Dimensions Keystrokes

17.5 Meters 17.5 [m]

5 Feet 5 [Feet]

1/2 Inch 1 [/] 2

5 Feet 1 Inch 5 [Feet] 1 [Inch]

5 Feet 1-1/2 Inch 5 [Feet] 1 [Inch] 1 [/] 2

10 Yards 10 [Yds]

205 Millimeters 205 [mm]

Square and Cubic Dimensions

Square and cubic dimensions are entered in

the following order:

(1) Numerical Value;

(2) Convention — Square or Cubic;

(3) Units — Meters, Yards, Feet, Inches.

Below are some examples of how square and

cubic dimensions are entered:

Dimension Keystrokes

33 square millimeters 33 [Sq] [mm]

5 cubic yards 5 [Cu] [Yds]

130 square feet 130 [Sq] [Feet]

123 cubic meters 123 [Cu] [m]

17 — User’s Guide

DIMENSION CONVERSIONS

Linear Conversions

Convert 14 feet to other linear dimensions:

Keystrokes Display Shows

14 [Feet] . . .

[Conv] [m] 4.2672 M

[Conv] [cm] 426.72 CM

[Conv] [mm] 4267.2 MM

[Conv] [Yds] 4.666667 YD

[Conv] [Feet] 14 FT 0 IN

[Conv] [Feet] 14 FT

[Conv] [Inch] 168 IN

Square Area Conversions

Convert 14 square feet to other square

dimensions:

Keystrokes Display Shows

14 [Sq] [Feet] . . .

[Conv] [m] 1.300643 SQ M

[cm] 13006.43 SQ CM

[mm] 1300643 SQ MM

[Inch] 2016 SQ IN

[Yds] 1.555556 SQ YD

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Note: When performing conversions, [Conv]

only has to be pressed once.

Cubic Conversions

Convert 14 cubic feet to other cubic dimen-

sions:

Keystrokes Display Shows

14 [Cu] [Feet] . . .

[Conv] [m] 0.396 CU M

[cm] 396435.9 CU CM

[mm] 0.396 CU M *

[Inch] 24192 CU IN

[Yds] 0.518519 CU YD

* Notice in the conversion to millimeters, the

answer has “Auto-Ranged” and is again dis-

played in meters, as otherwise the number of

digits would be out of the calculator's normal

seven digit display range.

19 — User’s Guide

MATHEMATICAL 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 Equals 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 math, as shown in the

following examples:

Adding and Subtracting Dimensions

1. Add 7 meters to 11 feet 4 inches:

7 [m] [+] 11 [Feet] 4 [Inch]

[=] 10.4544 M

2. Subtract 3 feet from 11 feet 7-1/2 inches:

11 [Feet] 7 [Inch] 1 [/] 2 [–] 3 [Feet]

[=] 8 FEET 7-1/2 INCH

Note: The format of the first value you enter

determines the format of the answer. However,

with the [Conv] key you can change to any for-

mat you desire, provided that you maintain

convention.

Multiplying and Dividing Dimensions

1. Multiply 5 feet 3 inches by

11 feet 6-1/2 inches:

5 [Feet] 3 [Inch]

[x] 11 [Feet] 6 [Inch] 1[/] 2

[=] 60.59375 SQ FT

2. Divide 30 meters by 16 inches:

30 [m] [÷] 16 [Inch]

[=] 73.8189

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Calculated Industries 4045 User manual

Brand: Calculated Industries

Model: 4045

Category: Calculators

Type: User manual

This manual is also suitable for

Construction Master IV

Download PDF

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Calculated Industries 4045 User manual

This manual is also suitable for

Calculated Industries 4045 User manual

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