Casio Isokinetic Calculator April 07 - Apex Instruments Instruments, Inc. Casio ® Calculator for Isokinetic Calculations Calculator Manual 4/07 Page 3 Apex Instruments, Inc. Casio®

When Changing Batteries, Please Change within 1 Hour or Programming will be Lost.

When Changing Batteries, Please Change within 1 Hour or Programming will be Lost.

Apex Instruments, Inc. Casio ® Calculator for Isokinetic Calculations

Page 3 Calculator Manual 4/07

Apex Instruments, Inc.Casio® Calculator

withEnglish and Metric

Isokinetic Calculations

204 Technology Park LaneFuquay-Varina, N.C. 27526

Tel: 919-557-7300 / Fax: 919-557-7110Website: www.apexinst.com



Table of Contents

BACKGROUND .................................................................................................................................. 5GENERAL OPERATION INSTRUCTIONS ......................................................................................... 6METHOD 5 PROGRAMS (M5ENG/M5METRIC) INSTRUCTIONS ................................................... 7METHOD 4 PROGRAMS (M4ENG/M4METRIC) SUMMARY .......................................................... 10SATURATION MOISTURE DETERMINATION (SATURENG/SATURMET) SUMMARY ................. 10METHOD 2 PROGRAMS (M2ENG/M2METRIC) SUMMARY .......................................................... 10METHOD 1 PROGRAMS (M1ENGCIR/M1METCIR) SUMMARY ................................................... 10METHOD 5 METERING CONSOLE CALIBRATION USING CRITICAL ORIFICE (ORCALENG/

ORCALMET) SUMMARY ............................................................................................................ 10



BACKGROUND

The programmed isokinetic calculator serves as a replacement for the nomograph, or slide-rule calculator, to calculate isokinetic conditions for EPA Method 5 and EPA Method 5-type sampling. The calculator is developed to be accurate and simple to operate.

The calculator is loaded with six independent programs in either English or Metric Units:

ENGLISH UNIT PROGRAMS:

1. M5ENG – Method 5 English Units (Calculates K-Factor and/or Post-test Isokinetics)

2. M4ENG – Method 4 English Units (Calculates Percent Moisture)

3. SATURENG – Saturation Moisture English Units (Calculates Moisture at Saturation)

4. M2ENG – Method 2 English Units (Calculates Stack Gas Velocity and Flowrate)

5. M1ENGCIR – Method 1 English Units (Calculates Number and Location of Traverse Points)

6. ORCALENG – M5 Metering Console Calibration using Critical Orifi ce, English Units

METRIC UNIT PROGRAMS:

1. M5METRIC – Method 5 Metric Units (Calculates K-Factor and/or Post-test Isokinetics)

2. M4METRIC – Method 4 Metric Units (Calculates Percent Moisture)

3. SATURMET – Saturation Moisture Metric Units (Calculates Moisture at Saturation)

4. M2METRIC – Method 2 Metric Units (Calculates Stack Gas Velocity and Flowrate)

5. M1METCIR – Method 1 Metric Units (Calculates Number and Location of Traverse Points)

6. ORCALMET – M5 Metering Console Calibration using Critical Orifi ce, Metric Units

The user will be prompted for each input with appropriate units and if values with differing units are entered, the calculations will NOT be correct.



GENERAL OPERATION INSTRUCTIONS

The following operation instructions are for the Casio Model CFX-9850G calculator with the Apex Instruments Method 5 Isokinetic Calculations Programs.

1. Turn the calculator on by pressing the ‘AC/ON’ button. The “MAIN MENU” should appear. To access this menu at other times, press the ‘MENU’ button on the calculator.

2. To access the programs from the “MAIN MENU”, either use the ‘up/down/left/right’ arrows to the “PRGM” menu box and press the ‘EXE’ button on the calculator OR push the alpha character ‘B’ button on the calculator (also labeled as the ‘log’ button on the calculator).

3. The “Program List” screen should appear. English unit programs that appear are: “M5ENG”, “M4ENG”, “SATURENG”, “M2ENG”, “M1ENGCIR”, and “ORCALENG”. Metric unit programs that appear are: “M5METRIC”, “M4METRIC”, “SATURMET”, “M2METRIC”, “M1METCIR” and “ORCALMET”. The program listed at the top of the screen will be highlighted. To access any of these programs, highlight the program by using the ‘up/down’ arrow keys on the calculator and then push the ‘EXE’ button or the ‘F1’ button on the calculator.

4. At this point the user is inside one of the programs. The fi rst statement informs which program the user has entered and prompts the user the press the ‘EXE’ button to continue. As a note, when the “- Disp -” appears on the screen, press ‘EXE’ to continue.



METHOD 5 PROGRAMS (M5ENG/M5METRIC) INSTRUCTIONS

The “M5ENG” and “M5METRIC” programs have two subroutines; “‘1’ K-FACTOR” subroutine calculates the ideal nozzle size and then the K-Factor (based on the actual nozzle size), “‘2’ POST-TEST ISOKINETICS” subroutine calculates the post-test isokinetic variation using the data from the actual test run. The data for the “‘1’ K-FACTOR” subroutine is obtained by performing a preliminary velocity/temperature/moisture traverse before the actual test.

1. The next step prompts which subroutine the user would like to enter. The subroutines are described in the paragraph above. To select the subroutine, press the number ‘1’ or ‘2’ and then press ‘EXE’. If you select the “‘1’ K-FACTOR” subroutine, continue on to instruction number 2. If you select the “‘2’ POST-TEST ISOKINETICS” subroutine, skip to instruction number 19.

2. The user is now in the K-FACTOR subroutine. The user is prompted to enter the “DRY GAS METER DELTA H@ (MM H20 / IN H20)”. This value is the orifi ce calibration factor provided from the meter console calibration data reduction. Type the number and then press ‘EXE’.

3. The next two prompts ask the user to input the oxygen (O2) and carbon dioxide (CO2) content that are used in the program to determine the molecular weight of the stack gas. This data can be determined by performing an orsat, or similar, analysis per US EPA Method 3. If the exact composition is unknown, the user can estimate the molecular weight using ambient conditions (20.9% O2 and 0.0% CO2). When prompted, enter the value and press ‘EXE’.

4. At the “STACK TEMPERATURE (CELSIUS / FAHRENHEIT)” prompt, enter the value and then press ‘EXE’.

5. At the “BAROMETRIC PRESSURE (MM HG / IN HG)” prompt, enter the value and then press ‘EXE’.

6. At the “STACK STATIC PRESSURE (MM H2O / IN H2O)” prompt, enter the value and then press ‘EXE’.

7. At the “AVERAGE SQUAREROOT DELTA P (“ MM H2O / “IN H2O)” prompt, enter the value and then press ‘EXE’. This value is obtained by averaging the square roots of each Delta P value. In other words, take the square root of each value BEFORE averaging the values. The user can have the calculator compute the average square root by keying in the following string at the prompt: ( “x1+”x2+”x3+…+”xn)/n

8. At the “METER TEMPERATURE (CELSIUS / FAHRENHEIT)” prompt, enter the value and then press ‘EXE’.

9. At the “PITOT TUBE COEFFICIENT” (unitless) prompt, enter the value and then press ‘EXE’.

10. At the “PERCENT MOISTURE” prompt, enter the value and then press ‘EXE’.

11. At the “SAMPLING RATE (USUALLY 21.21 LPM / 0.75 CFM)” prompt, enter the value and then press ‘EXE’.

12. The program calculates the ideal nozzle size for the stack gas conditions the user has entered. Press ‘EXE’ to continue with the program.

13. At the “ACTUAL NOZZLE DIAMETER (MM / IN)” prompt, enter the value and then press ‘EXE’.

14. The program calculates the K-FACTOR given the sampling conditions that the user has entered.



15. At the “ENTER THE NUMBER OF POINTS” prompt, enter the number of traverse points and then press ‘EXE’. This loop calculates the Delta H for each point based on the Delta P and the calculated K-Factor. If the user wants to end the program, enter the value of zero here.

16. At the “DELTA P (MM H20 / IN H2O)” prompt, enter the value and then press ‘EXE’.

17. The program calculates the Delta H at each point given the Delta P and the calculated K-Factor.

18. This subroutine is complete and then user now has the information needed to perform a stack test. The user can enter the program by repeating all of the above steps. To return to the program press ‘EXE’, or to exit the program press ‘AC/ON’.

The following section calculates the post-test isokinetics and is continued from instruction number 1.

19. The user is now in the POST TEST ISOKINETICS subroutine. The user is prompted to enter the “DRY GAS METER DELTA H@ (MM H2O / IN H2O). This value is the orifi ce calibration factor provided from the meter console calibration data reduction. Type the number and then press ‘EXE’.

20. The next two prompts ask the user to input the oxygen (O2) and carbon dioxide (CO2) content that are used in the program to determine the molecular weight of the stack gas. This data can be determined by performing an orsat, or similar, analysis per US EPA Method 3. If the exact composition is unknown, the user can estimate the molecular weight using ambient conditions (20.9% O2 and 0.0% CO2). When prompted, enter the value and press ‘EXE’.

21. At the “STACK TEMPERATURE (CELSIUS / FAHRENHEIT)” prompt, enter the value and then press ‘EXE’.

22. At the “BAROMETRIC PRESSURE (MM HG / IN HG)” prompt, enter the value and then press ‘EXE’.

23. At the “STACK STATIC PRESSURE (MM H2O / IN H2O)” prompt, enter the value and then press ‘EXE’.

24. At the “AVERAGE SQUAREROOT DELTA P ( “MM H2O / “IN H2O)” prompt, enter the value and then press ‘EXE’. This value is obtained by averaging the square roots of each Delta P value. In other words, take the square root of each value BEFORE averaging the values. The user can have the calculator compute the average square root by keying in the following string at the prompt: ( “x1+”x2+”x3+…+”xn)/n

25. At the “METER TEMPERATURE (CELSIUS / FAHRENHEIT)” prompt, enter the value and then press ‘EXE’.

26. At the “PITOT TUBE COEFFICIENT” (unitless) prompt, enter the value and then press ‘EXE’.

27. At the “ACTUAL NOZZLE DIAMETER (MM / IN) prompt, enter the value and then press ‘EXE’.

28. At the “METER GAMMA (Y)” prompt, enter the value and then press ‘EXE’. This value is provided from the meter console calibration data reduction.

29. At the “AVERAGE DELTA H (MM H2O / IN H2O) prompt, enter the value and then press ‘EXE’. This value is the average Delta H from each point of the test run. This is NOT the DELTA H@ value (orifi ce calibration coeffi cient).

30. At the “METER VOLUME (CUBIC METERS / CUBIC FEET)” prompt, enter the value and then press ‘EXE’.



31. At the “SAMPLING TIME (MIN)” prompt, enter the value and then press ‘EXE’.

32. At the “VOLUME WATER COLLECTED (ML)” prompt enter the value and then press ‘EXE’. This value is the total volume of water collected in the impingers during the test run. Since the density of water is approximately 1gram/milliliter (g/ml), the total weight, in grams, of the water collected during the test run may be substituted.

33. At the “PERCENT MOISTURE” prompt, press ‘EXE’.

34. At the “STACK GAS VELOCITY (MPS / FPS)” prompt, press ‘EXE’.

35. At the “RECTANGULAR OR CIRCULAR STACK” prompt, press ‘1’ if Circular or press ‘2’ if Rectangular.

36. At the “STACK DIAMETER or STACK WIDTH/LENGTH (M / FT)” prompt, enter the value(s) and then press ‘EXE’.

37. At the “VOLUMETRIC FLOWRATE” prompt, press ‘EXE’.

38. The program calculates the “ISOKINETIC VARIATION” given the sampling conditions that the user has entered. The user can enter the program by repeating all of the above steps. To return to the program press ‘EXE’, or to exit the program press ‘AC/ON’.



METHOD 4 PROGRAMS (M4ENG/M4METRIC) SUMMARY

The “M4ENG” and “M4METRIC” programs are subroutines of the Method 5 programs that calculate the percent moisture in the stack gas. The stack gas is fi rst extracted from the source and moisture is removed and measured either gravimetrically or volumetrically. This program computes the percent moisture based on the data collected during the sample extraction.

SATURATION MOISTURE DETERMINATION (SATURENG/SATURMET) SUMMARY

The “SATURENG” and “SATURMET” programs are stand-alone programs used to estimate the moisture at saturation for a stack gas stream. This data is used to verify moisture determination from Method 4 and confi rm existence/non-existence of entrained water in the gas stream.

METHOD 2 PROGRAMS (M2ENG/M2METRIC) SUMMARY

The “M2ENG” and “M2METRIC” programs are subroutines of the Method 5 programs that calculate the stack gas velocity and fl owrate for circular or rectangular stacks. The calculations are based on measurements of the gas density and the velocity pressure using a Type-S pitot tube

METHOD 1 PROGRAMS (M1ENGCIR/M1METCIR) SUMMARY

The “M1ENGCIR” and “M1METCIR” programs are stand-alone programs to determine the required number and location of traverse points for velocity and particulate sampling procedures. These programs are only used for circular (not rectangular) stacks.

METHOD 5 METERING CONSOLE CALIBRATION USING CRITICAL ORIFICE (ORCA-LENG/ORCALMET) SUMMARY

The “ORCALENG” and “ORCALMET” programs are stand-alone programs to fi eld-verify calibrations of Method 5 Metering Consoles using a calibrated, critical orifi ce. Using the data collected performing the calibration check in Method 5 Section 7.2, this program calculates the meter correction factor (γ) and Delta H@ for the metering console.



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Casio Isokinetic Calculator April 07 - Apex Instruments Instruments, Inc. Casio ® Calculator for Isokinetic Calculations Calculator Manual 4/07 Page 3 Apex Instruments, Inc. Casio®