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4225 Pocket Reference Guide 

— 26

KEYSTROKE DISPLAY

1. Clear calculator:

o o 

0.

2. Enter rebar size*:

5 ' 

No 5 STORED 0.625 INCH

3. Find rebar weight per foot:

No 5 1.04188 LB Per FEET

4. Enter rebar spacing:

1 8 i c ' 

R-oc STORED 18 

INCH

5. Enter rebar inset:

3 i c r 

R-oc STORED 3 INCH

6. Enter slab length

2 3 f l 

LNTH 23 FEET 3 INCH

7. Enter slab width:

1 6 f ] 

WDTH 16 FEET 0 INCH

8. Find rebar total linear feet:

RBAR 533 FEET 6 INCH

9. Find rebar total weight:

No 5 555.8428 LB

10. Display values used for calculating rebar:

No 5 STORED 0.625 INCH

R-oc STORED 18 INCH

R-IN STORED 3 INCH

LNTH 23 FEET 0 INCH

WDTH 16 FEET 0 INCH

*Rebar size can be entered as a number for rebar sizes 

3-11, 14, and 18 (e.g., 

5 '

 for #5 rebar), or as a 

decimal or fractional value not exceeding 6 Inches in 

diameter (e.g., 

5 / 8 '

 for 5/8 Inch rebar size).

Rebar – Total Weight

How many pounds of #5 rebar are needed 

to layout 100 linear feet of footings?

KEYSTROKE DISPLAY

PRG4225E-E.indd   25

6/28/2016   1:03:10 PM

Содержание Construction Master ConcreteCalc Pro 4225

Страница 1: ...67 85 7 5 21 5 7 352 9 1 5 7 1 5 7 21 21 5 7 216758 7 21 0 7 8 725 0RGHO PRG4225E E indd 1 6 28 2016 1 03 07 PM...

Страница 2: ...elated problems Solve Dimensional Math with Ease Dimensional Conversions U S Metric Conversions Weight Volume Conversions Rectangular Area Volume Calculations Block Quantity Solutions Footing Volume C...

Страница 3: ...tions 20 Squaring Up a Concrete Slab 23 Calculating Rebar 24 Calculating Loads 26 Blocks and Bricks 26 Polygon Equal Sided 27 Concrete Footing 28 Finding Weight Per Volume 29 Concrete Bags 29 Calculat...

Страница 4: ...sters o On Clear Key Turns on power Pressing once clears the display Pressing twice clears all temporary values c Convert Key Used with the dimensional keys to convert between dimensions or with other...

Страница 5: ...th the key for entering fractional Inch values e g 9 i 1 2 Repeated presses during conversions toggle between Fractional and Decimal Inches Fraction Bar Key Used to enter Fractions Fractions can be en...

Страница 6: ...l room Area This is a permanent entry stored value holds when turned off Arc Circle Keys k Arc Calculates arc Length or degree chord Length segment Area pie slice Area and segment rise e Circle Enters...

Страница 7: ...you already know your total linear Feet of rebar you can enter the Length to calculate the total Weight based on the Weight per Foot of the stored rebar size e g 1 0 0 f r r c r Inset Stores rebar ins...

Страница 8: ...res load size Load size must be entered as a cubic value e g 8 y y y p The default size is 8 cubic yards c 5 Bags Calculates number of concrete bags for a given Volume and stored bag size 5 Bag Size S...

Страница 9: ...standard face bricks store a brick size of 21 square inches e g 2 1 i i b or store 32 square Inches e g 3 2 i i b for paver bricks This is based on Modular U S brick size of 3 5 8 inches x 2 1 4 inch...

Страница 10: ...footing Area Footing Area must be entered as a square value e g 2 6 4 i i g The default footing is 264 square inches c l Polygon Calculates full angle bi sect angle side Length perimeter and Area base...

Страница 11: ...Stored Desired Riser Height R HT 13 Stored Desired Tread Width T WD 14 Stored Headroom HDRM 15 Stored Floor Thickness FLOR c t Riser Limited Calculates riser Height and other stair values if you re l...

Страница 12: ...e reciprocal of a number e g 8 c z 0 125 c x Clear All Returns all stored values to the default settings Does not affect Preference Settings c Toggle c Pi 3 141593 c Converts between D M S and decimal...

Страница 13: ...c 1 Kilograms Enters or converts to Kilograms n Memory c n M Memory Minus 1 M1 Storage Register 2 M2 Storage Register 3 M3 Storage Register c s Clear M s s Recall and Clear M s n 1 2 or 3 Recall M M1...

Страница 14: ...ng of 6 FEET 8 INCH 6 FEET 9 INCH 6 FEET 8 INCH Press to increase or to decrease by one inch Fifth press Exponential Mode of OFF ON OFF repeats options Sixth press Meter Linear Displays of 0 000 M FLO...

Страница 15: ...number Note If a denominator is not entered the fractional setting value is used Examples of how linear dimensions are entered press o after each entry DIMENSION KEYSTROKES 5 Yards 5 y 5 Feet 1 1 2 I...

Страница 16: ...feet to cubic yards KEYSTROKE DISPLAY 1 2 f f f 12 CU FEET c y 0 444444 SQ YD Weight Conversions Convert 25 tons to other weights KEYSTROKE DISPLAY 2 5 c 6 tons 25 Ton c 4 lbs 50000 LB c 1 kg 22679 6...

Страница 17: ...o 0 2 3 4 2 3 9 DMS 23 42 39 c 23 71 BASIC MATH OPERATIONS Your calculator uses standard chaining logic which simply means that you enter your first value the operator x z the second value and then th...

Страница 18: ...52 Divide 20 feet 3 inches by 9 2 0 f 3 i z 9 2 FEET 3 INCH PERCENTAGE CALCULATIONS The key can be used for finding a given percent of a number or for working add on discount or division percentage c...

Страница 19: ...Memory Other memory functions FUNCTION KEYSTROKES Add to Memory n Subtract from Memory c n Recall total from Memory s n Display Clear Memory s s Clear Memory c s Memory is semi permanent clearing only...

Страница 20: ...d twice the unit is shut off or a Clear All is performed Previewing Paperless Tape KEYSTROKE DISPLAY 1 Enter a string of numbers 4 f 4 FEET 0 INCH 5 f 9 FEET 0 INCH 6 f 15 FEET 0 INCH 7 f 22 FEET 0 IN...

Страница 21: ...AREA 300 SQ FEET SQUP 25 FEET 0 INCH PER 70 FEET 0 INCH Using the Multi Function h Key to find Volume Wall Area and Room Area Find the volume wall area and total surface room area if you have a lengt...

Страница 22: ...VOL 9 461806 CU YD x 6 5 c 0 615 02 Total cost Complex Concrete Volume You re going to pour an odd shaped patio 4 1 2 Inches deep with the dimensions as shown First calculate the total area by dividin...

Страница 23: ...FEET 6 INCH AREA 35 41667 SQ FEET n M 35 41667 SQ FEET M 4 Find area C and add to Memory 9 f l LNTH 9 FEET 0 INCH 9 f 6 i WDTH 8 FEET 6 INCH AREA 85 5 SQ FEET n M 85 5 SQ FEET M 5 Find total area vol...

Страница 24: ...ameter o o 0 5 f e DIA 5 FEET 0 INCH 2 Enter arc angle then find arc length chord segment area pie slice area and segment rise 8 5 k k ARC 3 FEET 8 1 2 INCH k CORD 3 FEET 4 9 16 INCH k SEG 1 522922 SQ...

Страница 25: ...AY 1 Find circle area o o 0 3 f 6 i e DIA 3 FEET 6 INCH e AREA 9 621128 SQ FEET 2 Enter height and find volume 5 f h HGHT 5 FEET 0 INCH c e e e CONE 16 03521 CU FEET To access cone volume press e thre...

Страница 26: ...eight of 10 feet KEYSTROKE DISPLAY 1 Recall stored weight per volume o o 0 s 0 STORED 1 5 Ton Per CU YD 2 Enter diameter 5 f 2 i 3 4 e DIA 5 FEET 2 3 4 INCH 3 Find total volume 1 0 f h c eCOL 214 7607...

Страница 27: ...ALCULATING REBAR Rebar Total Linear Feet Find the total linear feet of rebar for a 23 feet x 16 feet concrete slab using default values for rebar size No 5 on center spacing 18 inches and inset 3 inch...

Страница 28: ...BAR 533 FEET 6 INCH 9 Find rebar total weight r No 5 555 8428 LB 10 Display values used for calculating rebar r No 5 STORED 0 625 INCH r R oc STORED 18 INCH r R IN STORED 3 INCH r LNTH 23 FEET 0 INCH...

Страница 29: ...p KEYSTROKE DISPLAY 1 Clear calculator o o 0 2 Enter load size 8 y y y p L SZ 8 CU YD 3 Enter site length 1 0 8 f l LNTH 108 FEET 0 INCH 4 Enter site width 4 8 f WDTH 48 FEET 0 INCH 5 Enter site depth...

Страница 30: ...ks and add 5 waste b BLKS 169 5 170 Blocks 5 177 975 178 Blocks Masonry Estimating Bricks How many standard bricks 2 1 4 x 8 inch are needed for a wall measuring 36 feet 6 inches long and 8 feet high...

Страница 31: ...8 FEET 8 5 8 INCH l PER 43 FEET 7 1 8 INCH l AREA 130 7868 SQ FEET CONCRETE FOOTING Find the number of cubic yards of concrete required for a 16 inch x 8 inch footing that measures 232 feet 6 inches...

Страница 32: ...ING WEIGHT PER VOLUME Find the total volume and weight of a 10 foot high by 16 foot long by 8 inch thick concrete tilt up wall The unit weight is 1 5 tons per cubic yard of concrete KEYSTROKE DISPLAY...

Страница 33: ...ag size is stored in its place or a Clear All c x or reset is performed CALCULATING DROP Drop of a Sloped Patio You re pouring a sloped concrete patio with a Length of 14 feet If the standard drop or...

Страница 34: ...15 feet 5 inches in length What is the proper drop amount for each section What is the total accumulated drop depth at the end of all four sections KEYSTROKE DISPLAY 1 Clear calculator o o 0 2 Enter...

Страница 35: ...h or run of treads l based on desired riser height and tread width Floor to Floor Height Stringer Riser Height Total Run Inclination Angle Tread Width Stairs Given Rise and Run You re going to build a...

Страница 36: ...s below the desired stored tread width 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 inch...

Страница 37: ...iser height to 7 1 2 inches KEYSTROKE DISPLAY 1 Enter rise and run o o 0 1 0 f 1 i h HGHT 10 FEET 1 INCH 1 2 f 5 i l LNTH 12 FEET 5 INCH 2 Recall stored 7 1 2 inch desired riser height and find stair...

Страница 38: ...and re key the problem Error Codes DISPLAY ERROR TYPE OFLO Overflow too large MATH Error Divide by 0 DIM Error Dimension error ENT Error Invalid entry error None Attempts to calculate stairs without...

Страница 39: ...shown on the display will be cleared Replacing the Battery Turn the calculator over and open user guide door located at the top Pull battery holder out top left corner and turn over Remove old battery...

Страница 40: ...settings in addition to those listed above PREFERENCE SETTINGS DEFAULT VALUE Fractional Resolution 1 16 Area Display Standard Volume Display Standard Stairway Headroom 6 FEET 8 INCH Exponent Off Meter...

Страница 41: ...4225 Pocket Reference Guide 38 AREA FORMULAS PRG4225E E indd 38 6 28 2016 1 03 11 PM...

Страница 42: ...SURFACE AREA AND VOLUME FORMULAS PRG4225E E indd 39 6 28 2016 1 03 11 PM...

Страница 43: ...repairs 2 If your product won t turn on check the battery as outlined in the User s Guide 3 If you need more assistance please go to the website listed below 4 If you believe you need to return your p...

Страница 44: ...BY WARRANTY INCLUDE BUT ARE NOT LIMITED TO BATTERY LEAKAGE BENDING A BLACK INK SPOT OR VISIBLE CRACKING OF THE LCD WHICH ARE PRESUMED TO BE DAMAGES RESULTING FROM MISUSE OR ABUSE To obtain warranty se...

Страница 45: ...LD AS IS AND YOU THE PURCHASER ASSUME THE ENTIRE RISK AS TO ITS QUALITY AND PERFORMANCE IN NO EVENT WILL CI BE LIABLE FOR DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY...

Страница 46: ...ustries a leading manufacturer of special function calculators and digital measuring instruments is always looking for new product ideas in these areas If you have an idea or a suggestion for improvin...

Страница 47: ...HVLJQHG LQ WKH 8QLWHG 6WDWHV RI PHULFD 35 3ULQWHG LQ KLQD PRG4225E E indd 45 6 28 2016 1 03 11 PM...

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