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
