Sonin InchMate 2000 Reference Manual
Sonin InchMate 2000 is an invaluable tool for professionals working with dimensions and units, offering a range of features to simplify complex calculations. It excels in construction settings, enabling users to accurately calculate area, volume, weight, and more. With its ability to handle feet, inch, and fraction inputs, the InchMate 2000 streamlines tasks involving dimensional conversions, ensuring precise results crucial for construction projects. Additionally, its memory functions and paperless tape review enhance efficiency, allowing users to effortlessly manage and review calculations.
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Reference Guide
Professional
Foot / Inch / Fraction
Construction Calculator
Model DT220
SONIN INC.
Phone: 800-223-7511 Website: www.sonin.com
© 2003 Sonin Inc. All Rights Reserved
Printed in China
018-0000-0003 Rev.2
CONTENTS
INTRODUCTION
Key Pad Information
General Purpose Keys
Memory Keys
Other Functions Keys
Liquid Keys
Weight Keys
Dimension Keys
Triangle Keys
GETTING STARTED
Working with Dimensions and Units
Addition
Subtract
Multiply
Divide
Default Settings
Reduced Fraction Mode
Weight/Volume
Construction Settings
Conversions
Linear Conversions
Area Conversions
Volume Conversions
Weight Conversions
Liquid Conversions
Temperature Conversion
Paperless Tape Review
EXAMPLE PROBLEMS
Complex Area
Carpentry Rough Opening
Carpentry Joist Numbers
- 1 -
14
15
15-17
15-16
16
17
17
17
17
18-19
12-19
12-13
12
13
13
13
14-15
14
3
3-11
3-4
4-5
5-6
6-7
7-9
7
9-11
20-35
20
21
21
CONTENTS
Costing a Concrete Walkway
Squaring a Foundation
Stair Run Known
Stairs with Unconventional Risers & Treads
Raked Wall Stud Lengths
Board Feet Lumber
Circle Solutions
Simple Concrete Footings
Concrete Weight/Volume
Roof Rise
Roof Pitch Given Rise & Run
Regular Hip/Valley & Jack Rafter
Irregular Hip/Valley & Jack Rafter
REFERENCE
Chaining
Error/Overflow
Auto-Range
Care
Battery
Resetting Your Calculator
APPENDIX
Conversion Tables
Area Formulas
Volume Formulas
Lumber Sizes
FCC Statement
WARRANTY & REGISTRATION
Warranty Information
Customer Service
Warranty Registration
- 2 -
38-42
38
39
40
41
42
36-37
36
36
36
37
37
37
43-45
43
44
45
22
23
23-24
25-26
27
28
28
28-29
30
31
32
32-33
34-35
INTRODUCTION
If you build or design things you know the importance of working with accurate dimensions. The most frustrating and costly construction headaches can usually be traced to dimensional errors.
The INCH MATE 2000 is part of the new generation of Sonin
Feet-Inch-fraction Calculators helping people who work with dimensions to simplify difficult and tedious calculations.
KEY PAD INFORMATION
General Purpose Keys
Note: The key to be pressed appears between the left and right brackets, e.g., [+] except when referring to numerals.
On/Off
CE/CLR
Turns calculator ON and OFF.
To save the battery, calculator will turn off automatically after approximately 10 - 12 minutes of inactivity at which time the displayed value and memory content will be cleared.
Press this key once clears the current entry.
Pressing it twice clears display to 0.
Memory register & default setting are not affected.
Enters the numbers 0 thru 9 into the display.
0 to
9
- 3 -
1
KEY PAD INFORMATION
2 3 4 Performs arithmetic operation.
5
·
2ND
%
2ND
2ND
6
9
Completes all previously entered arithmetic operations and displays the result.
Enters a decimal point.
Activates the 2ND Function for designated keys. 2ND function is indicated above keys.
Percent is used to find a given percentage of a number.
X 2 is used to take the square (quantity multiplied by itself) of the number on the display. No operation is performed if the square of an area or cubic dimensioned number is taken, Error will be displayed.
Square Root - takes the square root of a number. Error will display if you try to take square root of a linear or volume value.
Memory Keys
M+ If memory is clear, enters displayed quantity into memory. If a value is already stored in memory this will add displayed quantity to memory.
- 4 -
KEY PAD INFORMATION
2ND M+ Subtracts displayed quantity from memory. The result is then placed in memory.
RCL Memory Recall retrieves data from selected memory & displays it.
NOTE: To display & keep in memory press [RCL] [ M+ ] . To display and remove from memory press [RCL] [RCL] .
2ND RCL CLEARS MEMORY without displaying it.
Other Functions Keys
Cost Cost is used when calculating the cost of items.
2ND % Restore Defaults allows the calculator to restore ALL changed default values
(NOTE: effects Wt/Vol., fraction, stair, rake, jack & hip/valley settings).
2ND
2ND
3
0 p is used to insert the value of Pi
(3.141592) onto the display for use in subsequent calculations, or for use as part of a mathematical process.
English/Metric Mode changes the first function Imperial unit keys to their corresponding metric unit functions.
It allows the user to enter a series of
- 5 -
2ND
2ND
2ND
2ND
2ND
2ND
KEY PAD INFORMATION metric values without having to use the second function key. The Metric icon is active when the metric mode has been selected. To return back to English mode press [2ND] [ 0 ] again.
5
5
·
8
2
4
Paperless Tape Review Access.
Paperless Tape Review Exit.
Weight Per Volume displays and enters a weight per volume (density) to be used in calculating weight. (see Default Values)
Weight is used to calculate the total weight of a volume of material.
+/- Change Sign changes the sign of displayed value between positive and negative.
Inverse 1/X divides the number 1 by the number on the display
Liquid Keys
Gal
Fl Oz
Gal Use to enter and convert gallons.
Fl Oz Use to enter and convert fluid
Ounces.
- 6 -
KEY PAD INFORMATION
2ND Gal Liter Use to enter and convert Liters.
2ND Fl Oz ml Use to enter and convert milliliters.
Weight Keys
Ton Ton Use to enter and convert Tons.
2ND Ton M Ton Use to enter and convert Metric
Tons.
lbs
Yard
Feet lbs Use to enter and convert pounds.
2ND
DryOz lbs kg Use to enter and convert kilograms.
Dry Oz use to enter and convert Dry
Ounces.
2ND DryOz grams Use to enter and convert grams.
Dimension Keys
Mile Mile Use for entering or converting miles, displayed in decimal units.
Yards Use for entering or converting yards.
Feet Use for entering or converting feet.
You may stop entry after feet or continue by entering inches and fractions.
- 7 -
Inch
KEY PAD INFORMATION
/ 2 / 4
/ 8 / 16
/ 32 / 64
Inch Use for entering inches. You may continue by entering fractions. Or press twice for decimal inches.
Fraction of an Inch Denominator keys-
They complete your fraction entries. Only fraction inches are defined.
2ND Mile km Use for entering or converting kilometers.
2ND Yard
2ND Feet
2ND Inch
Sq
2ND Sq
2ND 1 m Use for entering or converting meters.
cm Use for entering or converting centimeters.
mm Use for entering or converting millimeters.
Square Use for entering square units.
Press the [Sq] key before the units key.
Example: Enter 5 [Sq] [Feet]
Cube Use for entering cubic units.
Press [2ND] [Sq] before the entering units key. Example: Enter 5 [2ND ] [Sq] [Feet]
Bd Ft Use for entering or converting board feet.
- 8 -
2ND
2ND
KEY PAD INFORMATION
7
4
2ND 2
/ 2
Circle is used to find the circumference and area of a known diameter of a circle.
Arc is used to find the length of an arc after diameter and angle are entered.
Fixed Fraction mode is used to select a desired fraction result.
/ 64
Triangle Keys
Pitch
Run
Rise
Pitch is used to calculate the pitch (slope) of a right triangle. Once pitch entered continued pressing of pitch key will cycle through Angle, Rise and Ratio.
Run is used to enter or calculate.
To calculate the run, you must enter any two of the following: rise, pitch, diagonal
(length).
Rise is used to enter or calculate.
To calculate the rise, you must enter any two of the following: run, pitch diagonal
(length)
- 9 -
Diag
2ND Diag
H/V
2ND
Jack
KEY PAD INFORMATION
H/V
Diagonal /Length is used to enter or calculate. To calculate the diagonal/length, you must enter any two of the following:
Rise, Run, Pitch.
Raked Wall is used to figure stud lengths in a raked wall. Given pitch, rise and/or run continuous pressing of Rake function will show descending stud lengths.
Hip/Valley is used to find the lengths of regular or irregular hip/valley rafters.
When used alone it shows the regular hip/valley length. If an irregular pitch [2ND]
[H/V] is entered first, then the irregular hip/valley will be shown.
Irregular Pitch is used to change the regular pitch value for determining lengths of irregular hip/valley and jack rafters.
To recall press [2ND] [H/V]
Jack is used once the length of the Hip
(or valley) is found. Continuous entry will display the descending sizes of the jack rafters until 0 is displayed. These calculations will use a standard on center stud spacing of 16" unless otherwise specified. To change the OC default enter desired dimension prior to pressing [Jack] .
- 10 -
KEY PAD INFORMATION
2ND
2ND
2ND
Jack
Run
Irregular Jack is used once the length of the Hip(or valley) rafter is found.
Entry of [2ND] [Jack] followed by successive entry of [Jack] will display the descending sizes of the irregular hip
(or valley) until 0 is displayed.
Continuing to press [Jack] will show the display the regular jack rafters.
Rise Stair is used to calculate the number or risers, actual riser heights, riser under/overage, number of treads, tread overage/underage, stringer/carriage and inclination angle-Rise and/or Run is required. The default riser height of 71/2" can be changed by pressing desired height followed by [2ND] [Rise] .
Tread is used to calculate the width of the tread. The default tread width of 10" can be changed by pressing desired width followed by [2ND] [Run] .
- 11 -
GETTING STARTED
To activate battery, carefully remove plastic tab from battery compartment.
Your calculator utilizes chaining logic allowing you to carry our successive intermediate operations using the [=] key to finalize operations. See page 34 for Chaining
3
9
4
7
1
2
3
2
5
5
7
4
5
5
5
9 5
8.
4.
28.
8.
Working with Dimensions and Units
When entering dimensional values, you must always enter the largest dimension first. When entering fractions, enter the numerator followed by the dedicated denominator key
( [/2] [/64 ] ). If an operation is performed with mixed units, your calculator will automatically convert the result to the units of first entry.
Addition:
Enter
5 Feet 7 Inch
6 Feet 9 Inch
12 Ft - 4 1/16 INCH
1
1 / 16 5
Enter
5
6
12.3 Ft
·
· 7 Feet
6 Feet
1
5
- 12 -
GETTING STARTED
Subtract:
Enter
9 Feet 1 1 Inch
3 Feet 4 Inch 1
6 Ft - 6 3/4 INCH
Enter
2 0 Feet
6 · 7
13 Ft - 3 INCH
2
5 Feet
2
/ 4
5
5
Multiply:
Enter
1 8 Feet
1 ·
21.6 SQ Ft
2
Enter
1 8
54 INCH
Inch
3
Feet
3
5
3 5
Divide:
Enter
3 6
12 INCH
Enter
1 4
Inch
Feet
4
3
7 Ft - 0 3/64 INCH
Enter
5
2.5
Inch 4
3
/ 32
2 Inch
5
4
5
2 5
- 13 -
GETTING STARTED
DEFAULT SETTINGS
Reduced Fraction Mode
Your calculator is set to Reduced Fraction mode which give the most accurate result (to the /64th). To change your results to a Fixed Fraction you must press [2ND] [2] and desired denominator. The FIX icon will blink. To confirm your selection press [2ND] again.
Example: To change to /8th fixed fraction:
Press 2ND 2 / 8 2ND . Your calculations will now result to the nearest /8th.
To Restore back to Reduced Fraction Mode press [2ND] [2]
Weight/Volume
The density default values are 1.5 Tons/Cu Yd, 3000 lb/Cu
Yd, and 1779.829 kg/Cu M. The density is used in calculating weight. When using English units, the density is entered as tons per cubic yard or pounds per cubic yard; when using metric units, the density is entered as kilograms per cubic meter.
You can recall the density by entering [2ND] [5] . Continuing to press 5 causes the calculator to cycle through the various units: Tons/Cu Yd, LB/Cu Yd and kg/Cu M. You can set a new density by entering the weight followed by [2ND] [5] .
Example: To change and work in a density of
4000 LB/CuYd.
Enter:
4 0 0 0
2ND 5 5
Display : 4000 LB/Cu Yd
- 14 -
GETTING STARTED
To store and proceed press [CE/CLR] . Your Wt/Vol. is now set at 4000 Lb/CuYD
Construction Settings
This unit contains a set of default values that are used during various construction calculations. These values can be changed as required.
Setting
Stair Riser Height
English
7 1/2"
Stair Tread Width 10"
Raked Wall On Center 16"
Metric
18.5 cm
250 cm
60 cm
Regular Jack On Center 16"
Weight per Volume
60 cm
1.5 Tons/Yd3 1775 kg/m3
To check setting press [RCL] then desired setting.
NOTE: The Restore Defaults key [2ND] [%] restores ALL changed values to their default values.
CONVERSIONS
Linear Conversions
Key Sequence Result Displayed
To Convert 1 Yard
To Feet
To Inches
To Centimeters
1 [Yard]
[Feet]
[Inch]
[2ND] [Feet]
1. Yd
3. Ft
36. INCH
91.44 CM
- 15 -
GETTING STARTED
To convert between decimal feet and feet, inch, fractions press the [Feet] key to cycle through them.
Convert 1.6 feet
To feet, inch, fraction
Key Sequence Result Displayed
1.6 [Feet]
[Feet]
1.6 Ft
1 Ft- 7 13/64 INCH
To convert a displayed fraction to another, only the desired fraction key need to be pressed
Key Sequence Result Displayed
Convert 7/32"
To /16th
7 [/32]
[2ND] [/16]
0 7/32 INCH
0 4/16 INCH
Area Conversions
Key Sequence Result Displayed
Convert
10.5625 Sq Ft
10.5625
[Sq] [Feet]
To Square Meters [2ND] [Yard]
To Square
Centimeters
10.5625 SQ Ft
0.981288 SQ M
[2ND] [Feet] 9812.884 SQ CM
- 16 -
GETTING STARTED
Volume Conversions
Key Sequence Result Displayed
Convert 9
Cubic Meters
To Cubic Feet
To Cubic Inches
9 [2ND] [Sq]
[2ND] [Yard]
[Feet]
[Inch]
9. CU M
317.832 CU Ft
549213.7 CU INCH
Weight Conversions
Convert 10 pounds
To kgs
Key Sequence Result Displayed
10 [lbs]
[2ND] [kg]
10. LB
4.535924 KG
Liquid Conversions
Convert 10 Gallons
To Liters
Key Sequence Result Displayed
10 [Gal]
[2ND] [Gal]
10. GL
37.85412 L
Temperature Conversion
Convert 104°F
To Celsius
Key Sequence Result Displayed
104 [F°]
[2ND] [F°]
104. °F
40. °C
- 17 -
GETTING STARTED
Paperless Tape Review
The Paperless Tape Review feature allows you to review up to 20 entry steps and calculation results. The display will show the entered or calculated value, along with the entry step number.
Clear Calculator and enter a string of numbers
(i.e. 2 + 3 + 4 - 6 + 7 = 10)
Enter Tape Review
Display will read
2ND 5 Tape icon is activated
Tape 06 = 10.
The [+] and [-] keys allow you to step forward and backward through the last 20 steps entered into the calculator. After the initial display of the result, the [ +] key starts sequencing through the series of entries and calculations starting with the first step of the sequence. The [-] starts sequencing through the series in the reverse order starting with the next to last entry.
To review 2 + 3 + 4 - 6 + 7 = 10 in the forward direction
Key Sequence
[2ND] [=]
[+]
[+]
[+]
[+]
[+]
[+]
Tape
Tape
Tape
Tape
Tape
Tape
Tape
Result Displayed
06=
01
02+
03+
04-
05+
06=
10.
2.
3.
4.
6.
7.
10.
- 18 -
GETTING STARTED
To review in the reverse direction
Key Sequence Result Displayed
[-]
[-]
Etc.
Tape
Tape
05+
04-
7.
6.
Note: If more than one series of calculations have been performed, the Paperless Tape will only review the last series of calculations. Previous series of calculations will be deleted.
Example:
Enter Calculation Series #1:
1
10.
1 2 1 3 1 4 5
Then Enter Calculation Series #2:
2 Feet
24 CU Ft
3 3 Feet 3 4 Feet 5
Your paperless tape will only review the Calculation
Series #2
To exit Paperless Tape Review press 2ND · .
- 19 -
EXAMPLE PROBLEMS
Complex Area
Determining the square feet of an L shaped room when depth is unknown.
10'
Enter:
Enter:
29' 5"
2ND RCL to clear Memory.
1 8 Feet 3 Inch 3
2 9 Feet 5 Inch 5
Answer: 536.8542 SQ Ft
Press: M+ to store in memory.
Enter:
1 0 Feet 3
1 0 Feet 3 Inch
Answer: 102.5 SQ Ft
5
Press: 2ND M+ (to subtract from memory) then
Press: RCL RCL to recall total 434.3542 SQ Ft .
NOTE: [RCL] [RCL] should only be used when you no longer need to keep in memory otherwise use [RCL] [M+] to recall and keep in memory.
- 20 -
EXAMPLE PROBLEMS
Carpentry Rough Opening
Given 5 windows, each 2' 11 7/16" wide, find their overall width if they are placed side by side in a wall.
2' 11 7/16" × 5 = ??
Enter:
2 Feet 1 1 Inch 7
3
Answer:
5 5
14 Ft- 9 3/16 INCH
/ 16
Carpentry Joist Numbers
Find the number of joists on 16" centers needed for a 32' 4" long room.
32' - 4"
Enter:
3 2 Feet 4 Inch 4
1 6 Inch 5
Answer: 24.25
( Add 1 for the end = 25.25
and round up to 26 )
- 21 -
EXAMPLE PROBLEMS
Costing a Concrete Walkway
To find the cost of concrete for this courtyard when the concrete costs $50.00 per cubic yard:
30" b
30" a
35'
Press 2ND RCL to clear Memory.
First you must find the area of {a} Enter:
5 Feet 6 Inch 3 3 0 Inch 5
Answer: 13.75 SQ Ft Press M+ to add to memory.
Find Area of {b} Enter:
9 Feet 6 Inch 3 3 0 Inch 5
Answer: 23.75 SQ Ft Press M+ to add to memory.
Find Area of {c} Enter:
3 5 Feet 3 3 0 Inch 5
Answer: 87.5 SQFt Press M+ to store in memory.
Press RCL RCL to recall 125 total SQ Ft then multiply by depth
Answer: 41.66667 CU Ft
3 4 Inch 5
To convert to Cubic Yards press Yard
Answer: 1.54321 CU Yd
Press: 3
Answer: $77.16
5 0 Cost
- 22 -
EXAMPLE PROBLEMS
Squaring a Foundation
Calculate the
DIAGONAL of this rectangle
65' - 8 1/2"
Press:
Then
6
1
3
5
9
/ 4
Feet 8
Feet 4
Rise Diag
Inch
Inch
Answer: 68 Ft - 6 9/64 INCH
To convert answer to /8ths press 2ND
1
/ 8
/ 2 Run
Stair Run Known
Build a stairway where the value of the Run (22' 5 1/4") is known with a floor-floor height of 20' 6 1/2" using the default riser height of 7 1/2".
Operation: Reset
Enter: CE/CLR
Display: 0.
CE/CLR
Operation: Enter floor to floor height
Enter: 2 0 Feet 6
Display: RISE 20 Ft - 6 1/2 INCH
Inch
Operation: Enter Run
Enter: 2 2 Feet 5
Display: RUN 22 Ft - 5 1/4 INCH
Inch
1
1
/ 2
/ 4
Rise
Run
- 23 -
EXAMPLE PROBLEMS
Operation: Enter Nominal Riser Height
Enter: 7 Inch 1
Display: R-HT 7 1/2 INCH
/ 2 2ND
Operation: Find Number of Risers
Enter: 2ND Rise
Display: RSRS 33.
Operation: Find Actual Riser Height
Enter: Rise
Display: R-AH 7 1/2 INCH
Rise
Operation: Find Underage/Overage of Risers
Enter: Rise
Display: R+ / - 1 INCH
Operation: Find Number of Treads
Enter: Rise
Display: TRDS 32.
Operation: Find Tread Width
Enter: Rise
Display: T-WD 8 7/16 INCH
Operation: Find Underage/Overage of Treads
Enter: Rise
Display: T+ / - 0 3/4 INCH
Operation: Find Stringer Length
Enter: Rise
Display: STRG 30 Ft - 0 1/64 INCH
Operation: Find Incline
Enter: Rise
Display: INC° 41.59389°
- 24 -
EXAMPLE PROBLEMS
Stairs with Unconventional Risers & Treads
Build an entryway where your rise is 3' and you require shorter risers (5") and wider treads (3') for physically challenged user.
Operation: Reset
Enter: CE/CLR CE/CLR
Display: 0.
Operation: Enter Height
Enter: 3 Feet Rise
Display: RISE 3 Ft - 0 INCH
Operation: Enter Riser Height
Enter: 5 Inch 2ND
Display: R-HT 5 INCH
Rise
Operation: Enter Tread Width
Enter: 3 Feet 2ND Run
Display: T-WD 3 Ft - 0 INCH
Operation: Find Number of Risers
Enter: 2ND Rise
Display: RSRS 7.
Operation: Find Height of Risers
Enter: Rise
Display: R-AH 5 1/8 INCH
- 25 -
EXAMPLE PROBLEMS
Operation: Find Overage/Under
Enter: Rise
Display: R+ / - 0 1/8 INCH
Operation: Find Number of Treads
Enter: Rise
Display: TRDS 6.
Operation: Find Width of Treads
Enter: Rise
Display: T-WD 3 Ft - 0 INCH
Operation: Find Overage/Underage
Enter: Rise
Display: T+ / - 0 Ft - 0 INCH
Operation: Find Run Required
Enter: Rise
Display: RUN 18 Ft - 0 INCH
Operation: Find Stringer Length
Enter: Rise
Display: STRG 18 Ft - 2 13/64 INCH
Operation: Find Inclination
Enter: Rise
Display: INC° 8.134744°
- 26 -
EXAMPLE PROBLEMS
Raked Wall Stud Lengths
Find the stud lengths in the raked wall with a peak of 7'5" and length of 14' 8" (using the 16" default OC).
Operation: Reset
Enter:
CE/CLR CE/CLR
Display: 0.
Operation: Check OC Default
Enter: RCL 2ND Diag
Display: OCTR 16 INCH
Operation: Enter Run
Enter: 1 4 Feet 8
Display: RUN 14 Ft - 8 INCH
Operation: Enter Rise
Enter: 7 Feet 5 Inch
Display: RISE 7 Ft - 5 INCH
Inch
Rise
Operation: Find Length of Longest Stud
Enter: 2ND Diag
Display: RW1 6 Ft - 8 29/32 INCH
Operation: Find Length of Second Stud
Enter: 2ND Diag
Display: RW2 6 Ft - 13/16 INCH
Run
Operation: Find Length of Third Stud
Enter: 2ND Diag
Display: RW3 5 Ft - 4 47/64 INCH
NOTE: Continue until you have last stud. To convert result to /16th press [2ND] [/16]
- 27 -
EXAMPLE PROBLEMS
Board Feet Lumber
Find the total cost for eight 2 inch x 4 inch x 12 foot piece of lumber when the unit price is $1.60/Bd Ft.
Enter: 2
Answer: 8. B Ft
3
Then press:
Answer:
3
64. B Ft
8
Then press: 3
Answer: $102.40
1
4
5
·
3
6
1
Cost
2 2ND 1
Remember: 1 board foot is 144 cubic inches or 0.08333
cubic foot of lumber, conversions can only be done to and from other cubic measurements.
Circle Solutions
After entering the diameter of a circle, the Circle function is used to find the circumference and area of a circle. After finding the circumference of a circle, the area of the circle may be found by entering [7] a second time. Entering [7] a third time displays the circle diameter.
Circumference & Area
To find the circumference and the area of a circle whose diameter is 10 inches.
- 28 -
Enter
1
7
7
0
EXAMPLE PROBLEMS
Inch 2ND 7
Display
DIA 10 INCH
CIRC 31 27/64 INCH
AREA 78.53982 SQ INCH
Arc Length
The Arc function is used to find the length of an arc. Note that the circumference will display as soon as [2ND] [7] is pressed, and will remain on the display until [ 2ND] [4] is pressed. To find the arc length of an 85° arc whose diameter is 5 inches.
Enter Display
5
8
Inch 2ND
5 2ND
7
4
DIA 5 INCH
ARC 3 45/64 INCH
Simple Concrete Footings
Determine how much cement is needed to pour 5 concrete footings that have an 8 inch diameter and are 12 inches deep.
Enter Diameter by pressing
Find surface area by continuing to press the
Answer:
Then compute volume by entering:
Answer:
8 Inch 2ND 7
7 key twice.
AREA 50.26548 SQ INCH
3 1 2 Inch
603.1858 CU INCH
5
- 29 -
EXAMPLE PROBLEMS
Then multiply:
Answer:
Convert to feet by pressing:
Answer:
3 5 5
3015.929 CU INCH
Feet
1.745329 CU Ft
Concrete Weight/Volume
Determine the weight and volume for this concrete patio.
Use default 1.5Tn/Cu Yd and depth of 6"
33' 8"
First check weight/volume default by pressing [2ND] [5] .
If not 1.5 Tn/Cu Yd see Default Section
Enter:
3 3 Feet 8
Feet 5 Inch 3
Answer: 225.8472 CU Ft
Convert to Cubic yards: Press Yard
Answer: 8.364712 CU Yd
To determine weight: Press
Answer: 12.54707 Tn
2ND 8
Inch
6
3
Inch
1
5
3
- 30 -
EXAMPLE PROBLEMS
Roof Rise
Given any two - pitch, rise, run or diagonal will automatically solve for the other two. Here is a useful calculation in determining wall heights. This example will figure the RISE of a roof knowing the PITCH is 4 in 12 and the RUN is 13' - 2 3/8"
Pitch
12
Rise = ??
run
Run = 13 2 3/8
Remember: The PITCH of a roof equals its RISE in INCHES over a RUN of 12" thus a 4/12 roof has a SLOPE of 4".
(when entering SLOPE always use inches) In Metric pitch is expressed in millimeters over 1,000 millimeters of run.
Enter
4
1
Inch
Rise
Diag
Pitch
Pitch
Pitch
Inch Pitch
3
3
Feet
/ 8
Display
PTCH 4 INCH
2
Run RUN 13 Ft - 2 3/8 INCH
RISE 4 Ft - 4 51/64 INCH
DIAG 13 Ft - 10 15/16 INCH
PTCH 4 INCH
PTCH 0.333333 (In Ratio)
PTCH 18.43495°
- 31 -
EXAMPLE PROBLEMS
Roof Pitch Given Rise & Run
?? 12 run
Run = 20 0
Rise = 6 8
Enter
6 Feet
2 0
Pitch Pitch
8
Feet
Inch
Run
Rise
Display
RISE 6 Ft- 8 INCH
RUN 20 Ft- 0 INCH
PTCH 4 INCH
Remember: Pitch is always rise in inches over a run of 12 inches.
Regular Hip/Valley & Jack Rafter
When two roofs are perpendicular (90°) to each other and have the same pitch, they meet at a 45° angle. This is known as a regular condition.
Given a run of 12' and a rise of 6' calculate common rafters, hip/valley rafters, hip jack/valley jack rafters. Standard oncenter spacing is assumed.
Operation:
Key Sequence:
Display:
Rise
6 Feet Rise
RISE 6 Ft- 0 INCH
- 32 -
EXAMPLE PROBLEMS
Operation:
Key Sequence:
Display:
Run
1 2 Feet Run
RUN 12 Ft- 0 INCH
Operation: Common Rafter
Key Sequence: Diag
Display: DIAG 13 Ft- 5 INCH
Operation: Hip Rafter Length
Key Sequence: H/V
Display: H/V 18 Ft- 0 INCH
Operation: Jack Rafter Lengths
Key Sequence: Jack
Display: RJ 1 11 Ft- 11 7/64 INCH
Key Sequence: Jack
Display: RJ 2 10 Ft- 5 7/32 INCH
Key Sequence: Jack
Display: RJ 3 8 Ft- 11 21/64 INCH
Key Sequence: Jack
Display: RJ 4 7 Ft- 5 7/16 INCH
Continuous entry of [Jack] will display the descending sizes of the jack rafters until 0 is displayed.
- 33 -
EXAMPLE PROBLEMS
Irregular Hip/Valley & Jack Rafter
When the pitch of a main roof and the pitch of the adjacent roof are not the same, this is referred to as irregular and we calculate the regular (main roof) and irregular (hip or gable) values.
Given a main roof with a run of 12' and a pitch of 6" and the hip roof with a pitch of 8", calculate the common rafter, hip rafter, irregular hip/common rafter, irregular and irregular hip jack rafters. (standard on-center spacing applies to main roof and 18" on-center spacing applies to hip roof) Fix Fraction to /8ths.
Operation:
Key Sequence:
Display:
Operation:
Key Sequence:
Display:
Change Fixed Fraction
2ND 2
Fix
0.
/ 8 2ND
Run
1 2 Feet Run
Fix
RUN 12 Ft- 0 INCH
Operation:
Key Sequence:
Display:
Operation:
Key Sequence:
Display:
Regular Pitch
6 Inch Pitch
Fix
PTCH 6 INCH
Irregular Pitch
8 Inch 2ND H/V
Fix
IPCH 8 INCH
Operation: Common Rafter
Key Sequence: Diag
Display: Fix DIAG 13 Ft- 5 INCH
- 34 -
EXAMPLE PROBLEMS
Operation: Rise
Key Sequence: Rise
Display:
Fix
RISE 6 Ft- 0 INCH
Operation:
Key Sequence:
Display:
Regular Jack OC Spacing
1 6 Inch Jack
Fix
R-OC 16 INCH
Operation:
Key Sequence:
Display:
Operation:
Key Sequence:
Display:
Irregular Jack OC Spacing
1 8 Inch 2ND
Fix
IROC 18 INCH
Jack
Find Irregular Jack Rafters
2ND Jack
Fix
IJ 1 9 Ft- 5 5/8 INCH
Key Sequence: Jack
Display: Fix IJ 2 8 Ft- 1 3/8 INCH
Key Sequence: Jack
Display:
Fix
IJ 3 6 Ft- 9 1/8 INCH
Continue to press [Jack] until 0 is displayed. Then continuing to press [Jack] will cause unit to cycle thru the regular jack rafters
Key Sequence: Jack
Display:
Key Sequence: Jack
Display:
RJ 1 11 Ft- 5 1/8 INCH
RJ 2 9 Ft- 5 2/8 INCH
Continue to press [Jack] until 0 is displayed.
- 35 -
REFERENCE
Chaining
Your calculator utilizes chaining logic allowing you to carry out successive intermediate operations using the [ =] key to finalize operations. Since the chaining logic works from left to right, you must use care when combining operation such as addition and multiplication by first addressing operations within brackets.
Example: 1 + 2 x 3 + 4 = 13 Enter the values and operators as they are written and press [=] to get the answer.
Example: (1 + 2) x (3 + 4) = 21
Enter 1 [+] 2 [=] [M+]
Then enter 3 [+] 4 [x] [RCL] [M+] [=]
NOTE:
To recall and remove from memory press [RCL] [RCL] .
To recall & keep in memory storage press [RCL] [M+] .
Error/Overflow
An error/overflow condition occurs when the result of a calculation has more than 7 digits to the left of the decimal point, or when you attempt to divide a value by zero or calculate mixed units that are not alike. An Error condition is indicated by the " Error" displayed. You must clear the calculator display by pressing [CE/CLR] before continuing operations. Clearing an Error condition will not clear values stored in the memory registers.
Auto-Range
If the input or calculation result with small units is out of the
7 digit range of the display, the answer will be expressed in
- 36 -
REFERENCE the next larger units instead of showing " Error "
Care
Dont leave calculator in direct sunlight for long periods, or store it where excessive temperatures are possible. Dont leave the calculator on when not in use (NOTE- To save the battery, calculator will turn off automatically after 10-12 minutes of inactivity, at which time the displayed value and memory contents will be cleared.
Battery
This unit requires one 3V lithium battery (CR2032 or equivalent). The average battery operating life is 2000 hours.
When the display slows down and/or becomes dim, it is time for a new battery.
To change the battery
1.)
2.)
3.)
Turn power off.
Remove screw from battery lid & slide cover off.
4.)
Before removing the battery, be sure to touch a metal object. This is to avoid any accidental discharge of static electricity, which may harm the circuit board.
Install new battery with the (+) side up.
Resetting Your Calculator
To reset your calculator, turn unit over and see RESET.
Press with point of ball point pen. You calculator is now reset.
NOTE: RESETTING YOUR CALCULATOR WILL ERASE
ANYTHING IN MEMORY OR PAPERLESS TAPE.
- 37 -
APPENDIX
Conversion Tables
1 square inch = 6.4515 sq centimeters
1 square foot = 144 square inches
1 square foot = 0.92903 sq meters
1 square yard = 9 square feet
1 square yard = 0.836127 sq meters
1 cubic inch = 16.3871 cu centimeters
1 cubic foot
1 cubic foot
= 1728 cubic inches
= 0.02831 cu meters
1 cubic yard
1 cubic yard
1 mile
1 mile
= 27 cubic feet
= 0.76455 cu meters
= 5,280 feet
= 1.609344 kilometers
1 acre
1 ounce
= 43,560 square feet
= 28.349532 grams
1 pound = 0.4535924 kilograms
1 (U.S.) gallon = 3.7854118 liters
1 (U.K.) gallon = 4.546090 liters
1 fluid ounce = 29.574 milliliters
Fahrenheit
Centigrade pi ( p )
= 9/5 (C) + 32
= 5/9 (F - 32)
= 3.141593
- 38 -
Area Formulas
Circle p r 2
APPENDIX r
Triangle ab
2
Sphere
4 p r 2 b r a
Cylinder
2 p r(r+I) r
- 39 -
I
APPENDIX
Volume Formulas
Sphere
4 p r 3
3 r
Cylinder p r 2 I
Cone p b 2 a
12 r b a
I
- 40 -
2" x 2"
2" x 3"
2" x 4"
2" x 6"
2" x 8"
2" x 10"
2" x 12"
4" x 4"
4" x 6"
4" x 8"
4" x 10"
4" x 12"
Lumber Sizes
Normal Size
1" x 2"
1" x 3"
1" x 4"
1" x 6"
1" x 8"
1" x 10"
1" x 12"
APPENDIX
Actual Size (S4S)
3/4" x 1 1/2"
3/4" x 2 1/2"
3/4" x 3 1/2"
3/4" x 5 1/2"
3/4" x 7 1/4"
3/4" x 9 1/4"
3/4" x 11 1/4"
1 1/2" x 1 1/2"
1 1/2" x 2 1/2"
1 1/2" x 3 1/2"
1 1/2" x 5 1/2"
1 1/2" x 7 1/4"
1 1/2" x 9 1/4"
1 1/2" x 11 1/4"
3 1/2" x 3 1/2"
3 1/2" x 5 1/2"
3 1/2" x 7 1/4"
3 1/2" x 9 1/4"
3 1/2" x 11 1/2"
- 41 -
APPENDIX
FCC Statement
This device has been tested and found to comply with the limits for a Class B device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This device generates, uses and can radiate radio frequency energy and, if not used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the device off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna
- Increase separation between the device and receiver
CUSTOMER SERVICE
TECHNICAL ASSISTANCE
If you have any questions or need technical assistance, e-mail to:
[email protected]
CUSTOMER SERVICE
SONIN takes pride in offering unmatched customer service to owners of SONIN products. If you have any questions or would like additional information, please call:
1 - 800 - 223 - 7511 (USA)
or e-mail to:
[email protected]
- 42 - 43 -
The Measure of Excellence ®
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