USER’S Guide PLUMBingCalc Pro ™ Flow & Dimensional Math Calculator Model 4094
Designing and building new calculators like the Pipe Trades Pro™ Advanced Pipe Trades Math Calculator and the PlumbingCalc™ Pro Flow & Dimensional Math Calculator could not have been done without the support of pipefitting and plumbing professionals. Calculated Industries gratefully acknowledges the many individuals and organizations who were so generous with their time and expertise.
PlumbingCalc™ Pro The PlumbingCalc Pro Flow & Dimensional Math Calculator has been specifically designed for today’s plumbing professionals. Calculate Volumetric Flow Rates, Pressure, Force and Area. Select Pipe Material and Type, then enter Pipe Size and instantly display O.D., I.D., wall thickness, internal area, and weight per foot. Get all these calculations and more on the jobsite or in the office.
Table of contents GETTING STARTED................................................................. 4 Order of Operations................................................................ 4 Key Definitions.................................................................... 5 Basic Function Keys................................................................ 5 Dimensional Function Keys..................................................... 5 Plumbing Project Keys...................................................
Pipe Material Key...................................................................18 Pipe Size Key.........................................................................19 Angle, Offset, Run and Travel............................................... 20 Calculating Pipe Drop (Offset).............................................. 21 Calculating Flow Rate........................................................... 22 Velocity..................................................................................
Getting started You may want to practice getting a feel for your calculator keys by reading through the key definitions and learning how to enter basic feet-inch-fractions and metric, how to store values in Memory, etc., before proceeding to the examples. Order of Operations Unlike other Calculated Industries calculators, which use the Chaining Method of Operations, this calculator uses the Order of Operation Method.
key definitions Basic Function Keys On/Clear Key – Turns on power. Pressing once clears the last entry and the display. Pressing twice clears all non-permanent values. Off – Turns all power off. Clears all nonpermanent memory. Arithmetic operation keys – and Keys used for entering numbers. Convert – Used with the dimensional keys to convert between units or with other keys to access special functions. Store – Used for storing values.
Inch – Enters or converts to inches. Entry can be whole or decimal numbers. Also used with for entering fractional inch values (e.g., ). Repeated presses during conversions toggle between fractional and decimal inches. Fraction Bar – Used to enter fractions. Fractions can be entered as proper (1/2, 1/8, 1/16) or improper (3/2, 9/8). If the denominator (bottom) is not entered, the calculator’s fractional accuracy setting is automatically used.
and Run or Slope. Enters, calculates or stores the Offset (Rise). Enters or calculates the Run. Enters or calculates the Travel (Diagonal). Used to calculate pipe length. Defines the pipe material used for various pipe sizes used in Pressure Loss calculations. Defines the nominal Pipe Size being used. Enter or calculate volumetric Flow Rate through a Pipe. Defines the Pipe Type based on Pipe Material.
Squares the value in the display. Percent function Cost function Paperless tape Preference settings Backspace Function – Used to delete entries one keystroke at a time (unlike the function, which deletes the entire entry). - Used to store values in Memory registers 1-9. PREFERENCE SETTINGS Press , then to access the Preferences menu. Continue pressing to toggle through different Preferences.
(repeats options) Std. Third press of : (Volume displays) (repeats options) VOL Std. VOL 0. CU FEET VOL 0. CU M VOL Std. Fourth press of : (Meter Linear displays) METR 0.000 M (floating point) METR FLOAt M (repeats options) METR 0.000 M Fifth press of : (Decimal Degree displays) (floating point) (repeats options) DEG 0.00º DEG FLOAt DEG 0.00º Sixth press of : (Fractional mode) FRAC Std. FRAC COnSt. (repeats options) FRAC Std.
Examples of how linear dimensions are entered (press after each entry): DIMENSIONS 5 feet 5 feet, 1 ½ inches 17.5 meters 1250 millimeters KEYSTROKES Square and Cubic Dimensions Examples of how square and cubic dimensions are entered (press after each entry): DIMENSIONS 14 square inches 11 square feet 3.
Volume Conversions Enter 8.5 gallons and convert to liters. KEYSTROKES DISPLAY 0. GAL 8.5 LITR 32.176 Weight/Volume Conversions Convert 20 pounds to kilograms: KEYSTROKE 20 7 (Pounds) (Kilograms) DISPLAY 0. 20 LB 9.071847 kG Convert 5 cubic feet of water to pounds. Then convert the pounds to kilograms: KEYSTROKE 5 7 (Pounds) (Kilograms) DISPLAY 0. 5 CU FEET 312.1398 LB 141.
(ºC) 25.55556 ºC Convert 11 °C to a °F temperature. KEYSTROKES DISPLAY 0. 11 ºC 51.8 ºF (°C) (ºF) Flow Rate Conversions You can enter a Flow value in cubic feet per second, liters per second, cubic feet per minute, or gallons per minute, then convert to other units. Enter 47 cfs, then convert to other units. KEYSTROKES (cfs) (l/s) (cfm) (gpm) DISPLAY 0. CFS 47 L/S 1330.892 CFM 2820. GPM 21095.
Multiplying Dimensions Multiply 5 feet 3 inches by 11 feet 6-1/2 inches: KEYSTROKES DISPLAY 60.59375 SQ FEET Dividing Dimensions Divide 30 feet 4 inches by 7 inches: KEYSTROKES DISPLAY 52. Divide 20 feet 3 inches by 9: KEYSTROKES DISPLAY 2 FEET 3 INCH PERCENTAGE CALCULATIONS The keys can be used for finding a given percent of a number or for working add-on, discount or division percentage calculations.
Take 20% from 286 Feet 6 inches: KEYSTROKES DISPLAY 0. 229 FEET 2 3/8 INCH Add a 10% waste allowance to 275 feet of pipe: KEYSTROKES DISPLAY 0. 302 FEET 6 INCH memory operation Whenever the key is pressed, the displayed value will be added to the Memory.
Using M+ KEYSTROKES DISPLAY M+ 355. M M+ 255. M (M-) M- 745. M TTL – 135. M AVG – 45. M CNT 3. M ; ; M+ – 135. Using Memory Storage Keys (M1 - M9) In addition to the standard cumulative Memory (as previously described), your calculator has nine independent Storage Registers – M1 through M9 – that can be used to permanently store single, noncumulative values. The following example shows the use of M1 ( ).
PAPERLESS TAPE The Paperless Tape allows you to display and review the last 30 entries of a calculation. accesses the tape mode and or scrolls forward or backward through the entries. Note: The Paperless Tape is cleared each time is pressed twice, the unit is shut off, or an All Clear ( ) is performed. Paperless Tape Function — Normal Mathematics 1. Enter a string of numbers: KEYSTROKES 6 7 DISPLAY 0. 4 FEET 0 INCH 9 FEET 0 INCH 15 FEET 0 INCH 22 FEET 0 INCH 2.
Calculate Costs The Cost function provides the total cost for material, based on a stored unit cost and an entered quantity of material. This is convenient for quickly calculating costs on a job that requires many of the same kind of items. Example: You are doing an installation that includes 120 feet of pipe that comes in 10’ lengths at $3.21 per 10’ pipe. KEYSTROKES DISPLAY Store the unit cost of the pipes needed: 0. COST Per 3.
Using the Plumbingcalc Pro Note: The PlumbingCalc Pro’s built-in right-angle functions, including Offset, Run, and Travel, are designed to calculate centerline lengths only and do not account for take outs or welder’s gaps. Pipe Material Key The Pipe Material key lets you choose a pipe material, which defines the available sizes and surface roughness used by the calculator. The default material for the PlumbingCalc Pro is Plastic, but you can choose from material types as shown.
(Schedule 120) (SDR 21) (SDR 26) (SDR 32.5) (SDR 41) Type 120 Type SD21 Type SD26 Type SD32 Type SD41 PLASTIC PLASTIC PLASTIC PLASTIC PLASTIC You can also directly enter a Pipe Type, e.g., Schedule 80, by entering a number corresponding to the pipe type. KEYSTROKES DISPLAY 0. MATL PLASTIC 80 Type PLASTIC Pipe Size Key Pipe sizes are entered with the Pipe Size key. There is a list of valid pipe sizes for each Pipe Material in the Appendix.
PIPE SIZE 2.019802 LB Per FEET FILL SIZE 4.883337 LB Per FEET AREA SIZE 6.605199 SQ INCH (Weight per Foot) (Filled Weight/Foot) (Internal Area) Angle, Offset, Run and Travel Find the length (Travel) of a pipe over a Run of 45’ 6” with an Offset of 23’ 8”. TRA VEL OFFSET ANGLE RUN KEYSTROKES DISPLAY 0. 1. Enter the Offset: OFST 23 FEET 8 INCH 2. Enter the Run: RUN 45 FEET 6 INCH 3.
KEYSTROKE DISPLAY 0. 1. Enter Run: 24 2. Enter bend angle: 45 3. Find the Travel: RUN 24 INCH /0 45.00° 33 15/16 INCH 4. Subtract 2 times the elbow take out (2 x 3 ¾”) from the calculated centerline Travel: 23 34 26 7/16 INCH 5. Subtract 2 times the welder’s gap (2 x 3/32”): 2 3 32 26 1/4 INCH Calculating Pipe Drop (Offset) Find the slope of a Pipe Run if it drops 6 Inches over 50 Feet. What is its Angle and Percent Grade? KEYSTROKES 1. Enter the Run: DISPLAY 0.
If a Pipe Run requires 1/8” Drop (Slope) per foot for drainage, how much total drop is required for a 25’ Run? KEYSTROKES DISPLAY 0. 1. Enter the Slope (Drop): SLP 0 - 1/8 INCH 2. Calculate the total drop (Offset): OFST 0 FEET 3 - 1/8 INCH Calculating Flow Rate If you know the Area and Velocity, you can calculate the Flow Rate. For this example, the Velocity is 5 feet per second, and the Area is 1.8 square inches. KEYSTROKES DISPLAY ALL CLEArEd 1.
KEYSTROKES DISPLAY 0. M3/S 0. If you know the Flow Rate, you can convert to other dimensional units. KEYSTROKES DISPLAY ALL CLEARED (Gallons per Minute) GPM 5 (Cubic Feet per Minute) CFM 0.668403 5 (Cubic Feet per Second) CFS 0.01114 2 (Liters per Second) L/S 0.315451 Velocity You can enter a known Velocity, calculate Velocity and convert between different units of Velocity. If you know the Flow and Area, you can calculate Velocity and then convert to other Velocity units.
KEYSTROKES DISPLAY 0. M/S 0.271639 If you clear the calculator, you will only recall the last unit shown. KEYSTROKES DISPLAY 0. M/S 0. If you know the Velocity, you can convert to other dimensional units. KEYSTROKES DISPLAY ALL CLEARED 1. Enter the Velocity: FPS 5. 2. Convert to other Units: (Feet per Second) FPS 5. (Feet per Minute) FPM 300. (Meters per Second) M/S 1.
3. Enter Flow Rate: GPM 4. Calculate Pressure Loss and toggle through units: PSI PER FEET 0.000205 REY 6120.09 PSF PER FEET 0.029469 inHG PER FEET 0.000417 HEAD PER FEET 0.000472 BAR PER FEET 0.000014 KPA PER FEET 0.001411 PSI PER FEET 0.000205 Using the values above, you can then add the Run (Length) to calculate the Pressure Loss over the length of the pipe. KEYSTROKES DISPLAY RUN 50 FEET 0 INCH Calculate Pressure Loss PSI 0.010232 REY 6120.09 PSF 1.47346 inHG 0.
KPA 3.9673 PSI 0.575408 Pressure/Force If you know the Force and Area, you can calculate Pressure and convert the solution to different units of Pressure. For this example the Force is 100 lbf and the Area is 2 square inches. KEYSTROKES DISPLAY ALL CLEARED 1. Enter Force and Area: LBF 100. 2. Enter the Area: 2 AREA 2 SQ INCH 3. Calculate Pressure: PSI 50. PSF 7200. inHG 101.801 HEAD 115.3329 BAR 3.447379 KPA 344.7379 PSI 50.
3. Find the Area: AREA 5.666667 SQ INCH Pipe Capacity How many gallons of water will a 20’ long 6” Type 40 Plastic pipe hold? KEYSTROKE DISPLAY 0. 1. Enter the Pipe Size: ] 2. Find the Area: 3. Multiply by the Pipe length: 20 4. Find the Pipe capacity: 8 40 SIZE 6 INCH AREA 28.89026 SQ INCH 4.012536 CU FEET GAL 30.01586 Weight of Filled Pipe Find the weight of a 10’ length of 3 inch Type 40 plastic pipe filled with water. KEYSTROKE DISPLAY 0. 1.
5. Find the weight of the filled 10’ length of pipe: 10 46.97352 LB Force Given Pressure and Area, you can calculate Force and convert between newtons and pound-force. For this example the Pressure is 100 psi and the Area is 2 square inches. KEYSTROKES DISPLAY ALL CLEARED 1. Enter Pressure and Area 2. Enter Area: 2 PSI 100. AREA 2. SQ INCH 3. Calculate Force, convert between units: LBF 200. NEWT 889.
PIPE MATERIALS Plastic, Copper, Steel, Stainless Steel, Brass, Aluminum and Cast Iron. The default is Plastic. The calculator will recall the last material used. After a Clear All or Factory Reset, the default is displayed first. PIPE TYPES FOR EACH MATERIAL Stainless Steel Schedules: 40-S, 80-S, 160, 5-S, 10-S Plastic Schedules: 40, 80, 120; SDR 21, SDR 26, SDR 32.
Meter Linear Display 0.000 Decimal Degree Display 0.00° Standard or Constant Fractional Resolution Standard Mathematical Operations Order of Operations Method *Depressing the Reset button located above the [Angle/Slope] key will also perform a Full Reset. appendix C – Preference Settings The PlumbingCalc Pro has Preference Settings that allow you to customize or set desired dimensional formats and calculations.
– Square Inches (area answers always displayed in Square Inches — e.g., Feet x Feet = Square Inches) – Square Meters (area answers always displayed in Square Meters — e.g., Feet x Feet = Square Meters) 3) Volume Display Format – *Standard (if units entered are the same — e.g., Feet x Feet x Feet — the answer will remain in this format (cu. ft), but if units entered are different — e.g., Feet x Feet x Inches — vol. answer will always be displayed in Cubic Feet) – Cubic Feet (vol.
Note: To check the current Fractional Resolution, press [Rcl] [/]. Either “Std” (standard fractional resolution) or “Cnst” (constant) will be displayed, along with the fractional resolution. 7) Mathematical Operation – *Order (the calculator uses the Order of Operation Method (10 + 4 x 5 = 30) – Chain (the calculator uses the Chaining Method of Operations (as entered: 10 + 4 x 5 = 70) HOW TO SET PREFERENCES The following sections detail Preference Setting options for the PlumbingCalc Pro calculator.
(Fractional Resolution) FRAC 0 1/16 INCH FRAC 0 1/32 INCH FRAC 0 1/64 INCH FRAC 0 1/2 INCH FRAC 0 1/4 INCH FRAC 0 1/8 INCH (repeats options) FRAC 0 1/16 INCH Second press of : (Area displays) (repeats options) Third press of : (Volume displays) (repeats options) AREA Std. AREA 0. SQ FEET AREA 0. SQ INCH AREA 0. SQ M Std. VOL Std. VOL 0. CU FEET VOL 0. CU M VOL Std. Fourth press of : (Meter Linear displays) METR 0.
appendix D – Constants For material surface roughness, we use the following: Material Roughness Factor e (x 10 -6 ft) PVC Copper Steel (low carbon) Stainless Steel (austenitic) Brass Aluminum Cast Iron 15.6 4.9 221 49.2 4.9 4.9 850 For water properties: Viscosity = 0.
appendix F – Accuracy/Errors, Auto Shut-Off, Batteries, Reset ACCURACY/ERRORS Accuracy/Display Capacity — Your calculator has a twelvedigit display made up of eight digits (normal display) and four fractional digits. You may enter or calculate values up to 19,999,999.99. Each calculation is carried out internally to twelve digits. Errors — When an incorrect entry is made, or the answer is beyond the range of the calculator, it will display the word “ERROR.
BATTERIES The PlumbingCalc Pro uses two LR-44 batteries. Replacing Batteries Should your calculator display become very dim or erratic, replace the batteries. Note: Please use caution when disposing of your old battery, as it contains hazardous chemicals. Replacement batteries are available at most discount or electronics stores. You may also call Calculated Industries at 1-775-885-4900.
appendix G – Formulas AREA FORMULAS User’s Guide — 37
SURFACE AREA/VOLUME FORMULAS 38 — PlumbingCalc™ Pro
Warranty, Repair and Return Information Return Guidelines 1. Please read the Warranty in this User’s Guide to determine if your Calculated Industries product remains under warranty before calling or returning any device for evaluation or repairs. 2. If your product won’t turn on, check the batteries as outlined in the User’s Guide. 3. If you need more assistance, please go to the website listed below. 4.
To obtain warranty service in the U.S., please go to the website. A repaired or replacement product assumes the remaining warranty of the original product or 90 days, whichever is longer. Non-Warranty Repair Service – U.S.A. Non-warranty repair covers service beyond the warranty period, or service requested due to damage resulting from misuse or abuse. Contact Calculated Industries at the number listed above to obtain current product repair information and charges. Repairs are guaranteed for 90 days.
FCC Class B This equipment has been certified to comply with the limits for a Class B calculating device, pursuant to Subpart J of Part 15 of FCC rules. Legal Notes Software copyrighted and licensed to Calculated Industries by Construction Master Technologies, LLC, 2009. User’s Guide copyrighted by Calculated Industries, Inc., 2009. PlumbingCalc™ Pro is trademarked and Calculated Industries® is a registered trademark of Calculated Industries, Inc. PATENT PENDING ALL RIGHTS RESERVED Designed in the U.S.A.
Designed in the United States of America. Printed in China.
