Reference Guide
Professional
Foot / Inch / Fraction
Construction Calculator
SONIN INC.
Phone: 800-223-7511 Website: www.sonin.com
© 2003 Sonin Inc. All Rights Reserved
Printed in China 018-0000-0003 Rev.2
InchMate
®
2000
InchMate
®
2000
Model DT220
INTRODUCTION 3
Key Pad Information 3-11
General Purpose Keys 3-4
Memory Keys 4-5
Other Functions Keys 5-6
Liquid Keys 6-7
Weight Keys 7
Dimension Keys 7-9
Triangle Keys 9-11
GETTING STARTED 12-19
Working with Dimensions and Units 12-13
Addition 12
Subtract 13
Multiply 13
Divide 13
Default Settings 14-15
Reduced Fraction Mode 14
Weight/Volume 14
Construction Settings 15
Conversions 15-17
Linear Conversions 15-16
Area Conversions 16
Volume Conversions 17
Weight Conversions 17
Liquid Conversions 17
Temperature Conversion 17
Paperless Tape Review 18-19
EXAMPLE PROBLEMS 20-35
Complex Area 20
Carpentry Rough Opening 21
Carpentry Joist Numbers 21
CONTENTS
- 1 -
CONTENTS
- 2 -
Costing a Concrete Walkway 22
Squaring a Foundation 23
Stair Run Known 23-24
Stairs with Unconventional Risers & Treads 25-26
Raked Wall Stud Lengths 27
Board Feet Lumber 28
Circle Solutions 28
Simple Concrete Footings 28-29
Concrete Weight/Volume 30
Roof Rise 31
Roof Pitch Given Rise & Run 32
Regular Hip/Valley & Jack Rafter 32-33
Irregular Hip/Valley & Jack Rafter 34-35
REFERENCE 36-37
Chaining 36
Error/Overflow 36
Auto-Range 36
Care 37
Battery 37
Resetting Your Calculator 37
APPENDIX 38-42
Conversion Tables 38
Area Formulas 39
Volume Formulas 40
Lumber Sizes 41
FCC Statement 42
WARRANTY & REGISTRATION 43-45
Warranty Information 43
Customer Service 44
Warranty Registration 45
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