Calculated Industries 4080 Construction Master Pro Trig User Guide
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CONSTRUCTION MASTER PRO ® POCKET REFERENCE GUIDE For Models: 4065 v3.1 − Construction Master Pro 4080 v3.1 − Construction Master Pro Trig CONSTRUCTION MASTER PRO V3.1 The Construction Master Pro calculators help you save time, cut costly errors and build like a pro! Quickly Solve: • Feet-Inches-Fractions, Yards, Metric Dimensional Problems and Conversions • Problems Involving All Fractions – 1/2 through 1/64ths! • Areas, Volumes and Weights • Column/Cone Area and Volume • Blocks/Bricks, Drywall and Footings (NOT AVAILABLE ON TRIG MODEL #4080) • Circle/Arc Calculations • Common, Hip/Valley, Jack Rafter Lengths (regular and irregular) and Cut Angles • Rake-Wall Solutions • Roofing Materials • Stair Layout Solutions • Trig Keys (TRIG MODEL #4080 ONLY) TABLE OF CONTENTS KEY DEFINITIONS..................................1 Basic Function Keys ............................1 Unit Keys .............................................2 Length, Width and Height Keys (NOT AVAILABLE ON TRIG MODEL #4080) .......2 Circle/Arc Keys ....................................2 Construction Project Keys ...................3 Trigonometric Keys (TRIG MODEL #4080)..............................................5 Right Triangle/Roof Framing Keys.......5 Stair Layout Key ..................................7 Customizable Stair Settings ................8 Miscellaneous Functions .....................9 ENTERING DIMENSIONS ....................10 Entering Linear Dimensions ..............10 Entering Square/Cubic Dimensions ...11 EXAMPLES ...........................................12 Adding and Subtracting Strings of Dimensions ....................................12 Rectangular Area and Volume...........12 Entering Square and Cubic and Adding a Waste Allowance ........................13 Using Multi-Function h Key (NOT AVAILABLE ON TRIG MODEL #4080) .....13 Dividing Dimensions ..........................14 Linear Conversions............................14 Square and Cubic Conversions.........15 Blocks (NOT AVAILABLE ON TRIG MODEL #4080)............................................15 Board Feet and Cost .........................15 Circle Area and Circumference..........16 Circle/Arc Properties..........................16 Compound Miter ................................17 Concrete Columns .............................18 Concrete Footings (NOT AVAILABLE ON TRIG MODEL #4080) .........................19 Concrete Volume for Driveway ..........19 Converting D:M:S ..............................20 Drywall (NOT AVAILABLE ON TRIG MODEL #4080)............................................20 Polygon – Brick Paving......................20 Roofing Materials...............................21 Squaring-Up a Foundation ................22 Studs..................................................22 RIGHT ANGLE/FRAMING ....................24 Pitch – Converting Roof Angle ..........24 Converting Slope ...............................24 Angle – Rise and Hypotenuse Known (TRIG #4080 AND DESKTOP #44080 MODELS ONLY) ..................................24 Common Rafter Length .....................25 Regular Hip/Valley and Jack Rafters ..26 Irregular Hip/Valley ............................27 Rake-Wall – No Base ........................28 Rake-Wall – With Base ......................29 STAIRS ..................................................30 Stairs – Given Rise and Run .............30 Stairs – Given Rise Only ...................31 Stairs – Riser Limited Function .........32 DEFAULT SETTINGS ...........................33 KEY DEFINITIONS Basic Function Keys +–x ÷= Arithmetic operation keys. % Four-function (+, –, x, ÷) percent key. 0–9 and • Keys used for entering 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. ß Store Key — Used for storing values. ® Recall Key — Recalls stored values. POCKET REFERENCE GUIDE — 1 Unit Keys y f i / m Ç7 Ç9 Ç2 Yards Feet Inch Fraction Bar Meters Centimeters Millimeters Acres Length, Width and Height Keys (NOT AVAILABLE ON TRIG MODEL #4080) l Enters length for calculation of area or volume. W Calculates area, square-up and perimeter. h Calculates volume, wall area and total room area. Circle/Arc Keys C Circle — Calculates circle area and circumference. a Calculates Arc Length or Degree, chord length, segment area, pie slice area, segment rise, and length of arched segment wall studs. POCKET REFERENCE GUIDE — 2 Ça Radius — Enters or calculates circle radius. Construction Project Keys Çl Ç8  ÇC Blocks/Bricks — Finds the number of blocks or bricks for a given area and stored block/brick size. ß 4 — Stores block or brick size (default: 128 Square Inches area and 16 Inches length). Board Feet — Enters or converts cubic values to Board Feet. Compound Miter — Calculates (based on entered spring and wall corner angle) miter angle, and bevel angle for cutting crown moulding. ß Â —Stores value other than default spring (crown) angle of 45°. Column/Cone — Calculates the volume and surface area of a Column and/or Cone. POCKET REFERENCE GUIDE — 3 Çh Drywall — Calculates number of 4 x 8, 4 x 9 and 4 x 12 drywall sheets based on entered or calculated area. ÇW Footing — Finds quantity of concrete, based on entered wall length and stored footing area. ß 6 — Stores footing area (default: 264 Square Inches). Çd Roof — Calculates roof area, number of roof squares and bundles, and number of 4 x 8 sheets based on an entered or calculated plan area. ÇR Polygon — Calculates full angle, bi-sect angle, side length, perimeter and area based on entered radius and number of sides. Ç5 Studs — Calculates number of studs based on stored On-center spacing and entered length of wall. POCKET REFERENCE GUIDE — 4 Trigonometric Keys (TRIG MODEL #4080) S Finds the sine of a degree or undimensioned value. ÇS Arcsine (sin -1) — Gives the angle for the Sine value. ç Finds the Cosine. Çç Arccosine (cos -1) — Gives the angle for the Cosine value. Finds the Tangent. Arctangent (tan -1) — Gives the angle for the Tangent value. t Çt Right Triangle/Roof Framing Keys p Enters or calculates the slope (amount of “Rise” over 12” of “Run”. Çp Slope — Enters a Pitch ratio, or slope (e.g., • 5 8 3 Ç p). Enters or calculates the vertical leg of a right triangle. Rake-Wall — Finds the stud sizes based on entered right triangle values. r Çr POCKET REFERENCE GUIDE — 5 R Enters or calculates the horizontal leg of a right triangle. d Diagonal — Enters or calculates the Diagonal leg, or Common rafter. H Hip/Valley — Calculates length of the regular or irregular Hip/Valley rafter. ÇH Enters irregular pitch used to calculate lengths of the irregular Hip/Valley and Jack rafters. j Calculates Jack rafter lengths on the regularpitched roof side. Çj Calculates Jack rafter lengths on the irregularpitched roof side. ß 5 — Stores On-center spacing value (default: 16") for rafters and Rake-Walls. Also used for studs. POCKET REFERENCE GUIDE — 6 Stair Layout Key s Given rise and/or run and stored variables, calculates or displays: Press Result 1 Riser Height 2 Number of Risers 3 Riser Overage/ Underage 4 Tread Width 5 Number of Treads 6 Tread Overage/ Underage 7 Stairwell Opening 8 Stringer Length 9 Angle of Incline 10 Stored or Calculated Run 11 Stored or Calculated Rise 12 Stored Desired Riser Height 13 Stored Desired Tread Width 14 Stored Headroom 15 Stored Floor Thickness POCKET REFERENCE GUIDE — 7 Çs Riser Limited — Recalculates Riser Height and other stair values if you’re limited by local code. The calculated Riser Height will never exceed the stored Desired Riser Height. STAIR DEFAULT VALUES • 7-1/2” Desired Riser Height • 10” Desired Tread Width • 10” Floor Thickness • 6’8” Headroom Customizable Stair Settings ß7 Stores Desired Riser Height. ß9 Stores Desired Tread Width. ß8 Stores Floor Thickness. Ç ß ß Sets Headroom. See ßß large User’s Guide, Preference Settings, for details. POCKET REFERENCE GUIDE — 8 Miscellaneous Functions B Backspace Key ®= Paperless Tape Çß Preference Settings Ç÷ (1/x) Reciprocal Çx Clear All Ç– (+/–) Toggle Ç+ Pi (π) 3.141593 Ç• Converts between D:M:S and Decimal Degrees. Ç% x2 ÇB ( Ç/ Exponential Notation (x10y) Ç0 Total Cost (based on entry of per unit cost) ß0 Stores Weight per Volume Ç6 Tons Ç4 Pounds Ç3 Metric Tons Ç1 Kilograms µ Memory + ǵ ) Square Root (M–) Memory Minus POCKET REFERENCE GUIDE — 9 ß1 (M1) Storage Register ß2 (M2) Storage Register ß3 (M3) Storage Register ®® Recall and Clear M+ ® µ, 1, 2 or 3 Recall M+, M1, M2 or M3 ENTERING DIMENSIONS Entering Linear Dimensions Examples of entering Linear Dimensions: DIMENSION KEYSTROKE Clear calculator o 5 Feet 1-1/2 Inch 5 f 1 i 1 / 2* Clear calculator 5 Yards o 5y Clear calculator 17.5 Meters o 17•5m Clear calculator 100 Centimeters o 100Ç7 Clear calculator 500 Millimeters o 500Ç9 *If a denominator is not entered, the fractional setting value is used. POCKET REFERENCE GUIDE — 10 Entering Square/Cubic Dimensions Examples of entering Square and Cubic Dimensions: KEYSTROKE DISPLAY oo 0. Enter numeric value and press desired unit key once to label value as “Linear:” 100f 100 FEET KEYSTROKE DISPLAY oo 0. Enter numeric value and press desired unit key twice to label value as “Square:” 100ff 100 SQ FEET KEYSTROKE DISPLAY oo 0. Enter numeric value and press desired unit key three times to label value as “Cubic:” 100fff 100 CU FEET Note: If you pass the desired dimensional format, keep on pressing the dimensional unit key until the desired result is displayed again. Note: Feet-Inches format cannot be used to enter Square or Cubic values. POCKET REFERENCE GUIDE — 11 EXAMPLES Adding and Subtracting Strings of Dimensions Add the following measurements: • 6 Feet 2-1/2 Inches • 11 Feet 5-1/4 Inches • 18.25 Inches Then subtract 2-1/8 Inches. KEYSTROKE DISPLAY 6f2i1/2+ 11f5i1/4+ 18•25i= 19 FEET 2 INCH – 2 i 1 / 8 = 18 FEET 11-7/8 INCH Rectangular Area and Volume* Find the area and volume: • Length: 20 Feet 6-1/2 Inches • Width: 12 Feet 8-1/2 Inches • Height: 18 Inches KEYSTROKE DISPLAY 20f6i1/2l 12f8i1/2WW AREA 261.0503 SQ FEET 1 8 i h h VOL 14.5028 CU YD *If using the Trig model (#4080), multiply (LxWxH) in Feet-Inches-Fractions. POCKET REFERENCE GUIDE — 12 Entering Square and Cubic and Adding a Waste Allowance Add a 10% waste allowance to 55 Square Feet. Then add a 20% waste allowance to 150 Cubic Feet: KEYSTROKE DISPLAY 5 5 f f + 1 0 % 60.5 SQ FEET 150fff+20% 180. CU FEET Using Multi-Function h Key (NOT AVAILABLE ON TRIG MODEL #4080) Find the volume, wall area and total room area of a room measuring 15’ x 20’. The room is 8’ tall. KEYSTROKE oo 15fl 20fW 8fh h h h DISPLAY 0. LNTH 15 FEET 0 INCH WDTH 20 FEET 0 INCH HGHT 8 FEET 0 INCH VOL 2400. CU FEET WALL 560. SQ FEET ROOM 860. SQ FEET POCKET REFERENCE GUIDE — 13 Dividing Dimensions Divide 15 Feet 3-3/4 Inches into thirds (divide by 3): KEYSTROKE DISPLAY 15f3i3/4÷3= 5 FEET 1-1/4 INCH Linear Conversions Convert 10 Feet 6 Inches to other dimensions, including Metric: KEYSTROKE 10f6i Ç f* Ç i* Çy Çm Ç 9 (mm) Ç 7 (cm) DISPLAY 10 FEET 6 INCH 10.5 FEET 126. INCH 3.5 YD 3.200 M 3200.4 MM 320.04 CM *Repeated presses of f or i will toggle between Feet-Inch-Fractions and Decimal Feet or Inches. POCKET REFERENCE GUIDE — 14 Square and Cubic Conversions Convert 14 Square Feet to Square Yards: KEYSTROKE 14ff Çy DISPLAY 14 SQ FEET 1.555556 SQ YD Convert 12 Cubic Feet to Cubic Yards: KEYSTROKE 12fff Çy DISPLAY 12 CU FEET 0.444444 CU YD Blocks (NOT AVAILABLE ON TRIG MODEL #4080) How many blocks (block size 8” x 16”) will you need to build a retaining wall measuring 8’ x 22’? KEYSTROKE oo 8fx22f= Ç l (Blocks) DISPLAY 0. 176. SQ FEET BLKS 198. Board Feet and Cost Find the total Board Feet for the following boards: 2 x 4 x 16, 2 x 10 x 18 and 2 x 12 x 20. What is the total cost at $275 per MBM? (Cont’d) POCKET REFERENCE GUIDE — 15 (Cont’d) KEYSTROKE DISPLAY oo 0. 2x4x16Ç8µ BDFT 10.66667 M 2x10x18Ç8µ BDFT 30. M 2x12x20Ç8µ BDFT 40. M ®® BDFT 80.66667 x 2 7 5 Ç 0 (Cost) $22.18 Circle Area and Circumference Find the area and circumference of a circle with a diameter of 25 Inches: KEYSTROKE oo 25iC C C DISPLAY 0. DIA 25 INCH AREA 490.8739 SQ INCH CIRC 78-9/16 INCH Circle/Arc Properties Find Arc properties given a 5-foot diameter and an Arc length of 3 Feet 3 Inches: KEYSTROKE DISPLAY 1. Enter Circle diameter and Arc length: oo 0. 5fC DIA 5 FEET 0 INCH 3 f 3 i a ARC 3 FEET 3 INCH POCKET REFERENCE GUIDE — 16 2. Find Degree of Arc, Chord Length, Segment Area, Pie Slice Area and Segment Rise: a ARC 74.48° a CORD 3 FEET 0-5/16 INCH a SEG 1.051381 SQ FEET a PIE 4.0625 SQ FEET a RISE 0 FEET 6-1/8 INCH* *You may also find arched segment wall stud sizes, based on the stored o.c. After the segment rise, the calculator will display the stored o.c., then calculate the stud sizes with each successive press of the a key. See large User’s Guide for example. Compound Miter If the wall corner angle is 60° and the spring (crown) angle is 38°, find the miter angle and bevel angle for installing crown moulding: KEYSTROKE oo 38ß 60    DISPLAY 0. 38.00° MITR 46.84° BEVL 43.03° SPRG STORED 38.00° CRNR 60.00° SPRG STORED POCKET REFERENCE GUIDE — 17 Concrete Columns Find the total Cubic Yards and Tons of concrete (using 1.5 tons per cu. yd) required for three (3) columns, each with a diameter of 5 Feet 2-3/4 Inches and a height of 10 Feet: KEYSTROKE DISPLAY 1. Recall stored Weight per Volume: oo 0. STORED ®0 1.5 Ton Per CU YD 2. Enter diameter: 5f2i3/4C DIA 5 FEET 2-3/4 INCH 3. Find total volume: 1 0 f h Ç C (Column/Cone) COL 214.7607 CU FEET Çy 7.954101 CU YD x3= 23.8623 CU YD 4. Convert to tons: Ç 6 (ton) 35.79345 Ton Trig Model (#4080) Users: As this model does not have a h key, you must enter the height using the r key. POCKET REFERENCE GUIDE — 18 Concrete Footings (NOT AVAILABLE ON TRIG MODEL #4080) Find the volume of concrete required for an 8” x 16” footing that measures 100 Feet in length: KEYSTROKE DISPLAY oo 0. 8ix16i= 128. SQ INCH ß6 F-AR STORED 128. SQ INCH 1 0 0 f Ç W (Footing) FTG 3.292181 CU YD Concrete Volume for Driveway Calculate the Cubic Yards of concrete required to pour a driveway that measures: 45 Feet 5 Inches long x 13 Feet 6 Inches wide x 5 Inches deep. If concrete is $65 per Cubic Yard, what will it cost? KEYSTROKE oo 45f5i x13f6i x5i= x 6 5 Ç 0 (Cost) DISPLAY 0. 45 FEET 5 INCH 13 FEET 6 INCH 9.461806 CU YD $615.02 (total cost) POCKET REFERENCE GUIDE — 19 Converting D:M:S Convert 23° 42’ 39” to decimal degrees: KEYSTROKE DISPLAY oo 23•42•39 Ç • (dms deg) 0. DMS 23.42.39 23.71° Drywall (NOT AVAILABLE ON TRIG MODEL #4080) Find the number of 4 x 8, 4 x 9 and 4 x 12 sheets needed to cover an area of 125 Square Feet: KEYSTROKE oo 125ff Ç h (Drywall) h h DISPLAY 0. 125 SQ FEET 4X8 3.90625 4X9 3.472222 4X12 2.604167 Polygon — Brick Paving Find the Full Angle, Bi-sect Angle, Side Length, Perimeter and Area of a Polygon for paving a brick patio. The radius is 7 Feet 5 Inches and the number of sides is five: POCKET REFERENCE GUIDE — 20 KEYSTROKE DISPLAY oo 0. 7 f 5 i Ç a (Radius) RAD 7 FEET 5 INCH 5 Ç R (Polygon) FULL 108.00° R HALF 54.00° R SIDE 8 FEET 8-5/8 INCH R PER 43 FEET 7-1/8 INCH R AREA 130.7868 SQ FEET Roofing Materials Find the roof area, number of roofing squares and bundles of shingles, stored bundles size, and number of 4 x 8 sheets needed for an 8” pitched roof covering a floor size of 15’ x 13’: KEYSTROKE DISPLAY oo 0. 8ip PTCH 8 INCH 1 5 f x 1 3 f = 195. SQ FEET Ç d (Roof) ROOF 234.3608 SQ FEET d SQRS 2.34 d BNDL 7.03 d B-SZ 33.33 d 4X8 7.32 POCKET REFERENCE GUIDE — 21 Squaring-Up a Foundation Square-up a 15’ 6” x10’ 2” foundation:* KEYSTROKE DISPLAY oo 0. 15f6il LNTH 15 FEET 6 INCH 10f2iW WDTH 10 FEET 2 INCH WW SQUP 18 FEET 6-7/16 INCH *Alternative Method, or for Trig model (#4080) Owners: Square-up a 15’ 6” x10’ 2” foundation. KEYSTROKE DISPLAY oo 0. 15f6iR RUN 15 FEET 6 INCH 10f2ir RISE 10 FEET 2 INCH d DIAG 18 FEET 6-7/16 INCH POCKET REFERENCE GUIDE — 22 Studs Find the number of 16-inch On-center studs* required for a wall measuring 25 feet in length: KEYSTROKE oo 2 5 f Ç 5 (Studs) DISPLAY 0. STUD 20. *If you are working with a number other than 16 Inches On-center, change it via ß 5 (e.g., 18 Inches o.c., enter 1 8 i ß 5, then recalculate above). POCKET REFERENCE GUIDE — 23 RIGHT ANGLE/FRAMING Pitch — Converting Roof Angle Find the % Grade, Slope and Pitch in Inches if the roof angle is 30.25°: KEYSTROKE oo 30•25p p p p DISPLAY 0. PTCH 30.25° %GRD 58.31828 SLP 0.583183 PTCH 7 INCH Converting Slope Find the Pitch in Inches, Pitch Degrees, and Percent Grade if the slope is 0.625: KEYSTROKE DISPLAY oo 0. • 6 2 5 Ç p (Slope) SLP 0.625 p PTCH 7-1/2 INCH p PTCH 32.01° p %GRD 62.5 Angle — Rise and Hypotenuse Known (TRIG #4080 AND DESKTOP #44080 MODELS ONLY) Find the angle that connects the Rise and Hypotenuse of a Right Triangle, if the Rise is 6 Feet and the Hypotenuse is 10 Feet in length: POCKET REFERENCE GUIDE — 24 KEYSTROKE DISPLAY 1. Use trigonometry formula (divide the rise by the hypotenuse): oo 0. 6f÷10f= 0.6 2. Solve for angle or degrees:minutes:seconds: Ç ç (cos -1) 53.13° DMS 53.07.48 Ç • (dms deg) Common Rafter Length Find the point-to-point length of the Common rafter on a 7/12-pitched roof with a span of 28 Feet. What are the angle cuts? KEYSTROKE 1. Enter Pitch: oo 7ip DISPLAY 0. PTCH 7 INCH 2. Enter half the span as the run: 28f÷2= 14 FEET 0 INCH R RUN 14 FEET 0 INCH 3. Find the Common and cuts: d DIAG 16 FEET 2-1/2 INCH d PLMB 30.26° d LEVL 59.74° POCKET REFERENCE GUIDE — 25 Regular Hip/Valley and Jack Rafters A roof’s Pitch is 9/12 and half the total span is 6 Feet. Find the lengths of the Common, Hip/Valley and Jack rafters. Also find the incremental jack adjustment and the cut angles. (Jack rafters at 16” On-center spacing.) KEYSTROKE DISPLAY 1. Find the Common rafter length: oo 0. 6fR RUN 6 FEET 0 INCH 9ip PTCH 9 INCH d (Common) DIAG 7 FEET 6 INCH 2. Find the Hip/Valley rafter length and cut angles; then the incremental jack adjustment, Jack rafter lengths and cut angles: H H/V 9 FEET 7-1/4 INCH H PLMB 27.94° H LEVL 62.06° H CHK1 45.00° j JKOC STORED 16 INCH j INCR 1 FEET 8 INCH j JK 1 5 FEET 10 INCH j JK 2 4 FEET 2 INCH j JK 3 2 FEET 6 INCH POCKET REFERENCE GUIDE — 26 j j j j j JK 4 0 FEET 10 INCH JK 5 0 FEET 0 INCH PLMB 36.87° LEVL 53.13° CHK1 45.00° Irregular Hip/Valley A roof has a 9/12 Pitch, an irregular Pitch of 8/12, and half the span is 6 Feet 7 Inches. Solve the Hip/Valley length. On-center spacing is 16 Inches. KEYSTROKE DISPLAY 1. Find Common rafter length: oo 0. 9ip PTCH 9 INCH 6 f 7 i R RUN 6 FEET 7 INCH d DIAG 8 FEET 2-3/4 INCH 2. Enter On-center spacing and irregular Pitch; find irregular Hip rafter: 1 6 i ß 5 (o.c.) OC STORED 16 INCH 8 i Ç H (Ir/Pitch) IPCH 8 INCH H IH/V 11 FEET 0-7/8 INCH POCKET REFERENCE GUIDE — 27 Rake-Wall – No Base Find each stud size in a Rake-Wall with a peak of 3 Feet 6 Inches, and a length of 5 Feet. Use 16 Inches as your On-center spacing (default; already stored): KEYSTROKE DISPLAY 1. Enter Rise and Run: oo 0. 3 f 6 i r RISE 3 FEET 6 INCH 5fR RUN 5 FEET 0 INCH 2. Find stud lengths: Ç r (R/Wall) RWOC STORED 16 INCH r RW 1 2 FEET 6-13/16 INCH r RW 2 1 FEET 7-5/8 INCH r RW 3 0 FEET 8-3/8 INCH r BASE 0 FEET 0 INCH 3. Find Rake-Wall angle of incline: r RW 34.99° POCKET REFERENCE GUIDE — 28 Rake-Wall – With Base Find each stud size in a Rake-Wall with a peak of 4 Feet, a length of 8 Feet, and a base of 5 Feet. Use 16 Inches as your On-center spacing: KEYSTROKE DISPLAY 1. Enter Rise and Run: oo 0. 4fr RISE 4 FEET 0 INCH 8fR RUN 8 FEET 0 INCH 2. Enter base and find stud lengths and angle of incline: 5 f Ç r (R/Wall) BASE 5 FEET 0 INCH r RWOC STORED 16 INCH r RW 1 8 FEET 4 INCH r RW 2 7 FEET 8 INCH r RW 3 7 FEET 0 INCH r RW 4 6 FEET 4 INCH r RW 5 5 FEET 8 INCH r BASE 5 FEET 0 INCH r RW 26.57° POCKET REFERENCE GUIDE — 29 STAIRS Stairs — Given Rise and Run You’re going to build a stairway that has a floor-to-floor height of 10 Feet 1 Inch, a run of 12 Feet 5 Inches, and a desired riser height of 7-1/2 Inches (default). Find the stair values: KEYSTROKE DISPLAY 1. Enter rise and run: oo 0. 10f1ir RISE 10 FEET 1 INCH 12f5iR RUN 12 FEET 5 INCH 2. Recall stored 7-1/2” desired riser height, then find the stair values: ®7 R-HT STORED 7-1/2 INCH s R-HT 7-9/16 INCH s RSRS 16. s R+/– 0 INCH s T-WD 9-15/16 INCH s TRDS 15. s T+/– 0-1/16 INCH s OPEN 9 FEET 10-1/4 INCH s STRG 15 FEET 7-5/16 INCH s INCL 37.27° POCKET REFERENCE GUIDE — 30 Stairs — Given Rise Only You’re building a stairway with a total rise of 9 Feet 11 Inches. Using the default riser height of 7-1/2 Inches and tread width of 10 Inches, find the stair values: KEYSTROKE DISPLAY 1. Enter known Rise: oo 0. 9f11ir RISE 9 FEET 11 INCH 2. Recall stored desired stair riser height: ®7 R-HT STORED 7-1/2 INCH 3. Recall stored desired stair tread width: ®9 T-WD STORED 10 INCH 4. Find stair values: s R-HT 7-7/16 INCH s RSRS 16. s R+/– 0 INCH s T-WD STORED 10 INCH s TRDS 15. s T+/– 0 INCH s OPEN 10 FEET 1 INCH s STRG 15 FEET 6-15/16 INCH s INCL 36.64° POCKET REFERENCE GUIDE — 31 Stairs — Riser Limited Function Calculate stairs using the Riser Limited function, if you must limit the Riser Size to 7-1/2 Inches: KEYSTROKE DISPLAY 1. Enter Rise and Run: oo 0. 10f1ir RISE 10 FEET 1 INCH 12f5iR RUN 12 FEET 5 INCH 2. Recall stored 7-1/2” Desired Riser height and find stair values: ®7 R-HT STORED 7-1/2 INCH Ç s (Riser Limited) R-HT 7-1/8 INCH s RSRS 17. s R+/– 0-1/8 INCH s T-WD 9-5/16 INCH s TRDS 16. s T+/– 0 INCH s OPEN 9 FEET 9-5/8 INCH s STRG 15 FEET 7-5/8 INCH s INCL 37.42° POCKET REFERENCE GUIDE — 32 DEFAULT SETTINGS After a Clear All (Ç x), your calculator will return to the following settings: STORED VALUES DEFAULT VALUE Desired Riser Height 7-1/2 INCH Desired Tread Width 10 INCH Floor Height 10 INCH On-center Spacing 16 INCH Weight per Volume 1.5 Ton Per CU YD Block Area (except Trig model) 128. SQ INCH Block Length (except Trig model) 16 INCH Footing Area (except Trig model) 264. SQ INCH Spring (crown) Angle 45.00° If you replace your batteries or perform a Full Reset* (press O, hold down x, and press o), your calculator will return to the following settings (in addition to those listed above): PREFERENCE SETTINGS DEFAULT VALUE Fractional Resolution Area Display Volume Display 1/16 Standard Standard (Cont’d) POCKET REFERENCE GUIDE — 33 (Cont’d) PREFERENCE SETTINGS Stairway Headroom Rake-Wall Arched Wall Jack Rafters Irregular Jack Spacing Exponent Meter Linear Display Decimal Degree Display Fractional Mode DEFAULT VALUE 6 feet 8 inch Descending Outside Descending OC-OC Off 0.000 0.00° Standard *Depressing the Reset button located above the p key will also perform a Full Reset. BATTERY WARNINGS • Remove and immediately recycle or dispose of used batteries according to local regulations and keep away from children. Do NOT dispose of batteries in household trash or incinerate. • Even used batteries may cause severe injury or death. • Call a local poison control center for treatment information. • Compatible battery type is LR44. • Non-rechargeable batteries are not to be recharged. POCKET REFERENCE GUIDE — 34 • Do not force discharge, recharge, dissemble, heat above manufacturer’s specified temperature rating or incinerate. Doing so may result in injury due to venting, leakage or explosion resulting in chemical burns. • Ensure the batteries are installed correctly according to polarity (+ and -). • Do not mix old and new batteries, different brands or types of batteries, such as alkaline, carbon-zinc, or rechargeable batteries. • Remove and immediately recycle or dispose of batteries from equipment not used for an extended period of time according to local regulations. • Always completely secure the battery compartment. If the battery compartment does not close securely, stop using the product, remove the batteries, and keep them away from children. WARNING • INGESTION HAZARD: This product contains a button cell or coin battery. • DEATH or serious injury can occur if ingested. • A swallowed button cell or coin battery can cause Internal Chemical Burns in as little as 2 hours. • KEEP new and used batteries OUT OF REACH of CHILDREN. • Seek immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body. POCKET REFERENCE GUIDE — 35 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. Pocket Reference Guide copyrighted by Calculated Industries, Inc. © 2024. Construction Master® and Calculated Industries® are registered trademarks of Calculated Industries, Inc. ALL RIGHTS RESERVED CALCULATED INDUSTRIES® 4840 Hytech Drive Carson City, NV 89706 USA 1-800-854-8075 or 1-775-885-4900 Fax: 1-775-885-4949 E-mail: [email protected] www.calculated.com 05/24 PRG4065E-H ">
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