Sierra MaxTrak 180 Series Instruction Manual
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Sierra MaxTrak 180 Series Instruction Manual

Mass flow meters & controllers
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Sierra Instruction Manual
MaxTrak 180
MaxTrak™ 180 Series
Mass Flow Meters & Controllers
Models: 180, 180 + Flanges
Instruction Manual
Version IM-180 Series, Rev. L 11/20
GLOBAL SUPPORT LOCATIONS: WE ARE HERE TO HELP!
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Summary of Contents for Sierra MaxTrak 180 Series

  • Page 1 Sierra Instruction Manual MaxTrak 180 MaxTrak™ 180 Series Mass Flow Meters & Controllers Models: 180, 180 + Flanges Instruction Manual Version IM-180 Series, Rev. L 11/20 GLOBAL SUPPORT LOCATIONS: WE ARE HERE TO HELP!
  • Page 2 IMPORTANT CUSTOMER NOTICE: OXYGEN SERVICE Sierra Instruments, Inc. is not liable for any damage or personal injury, whatsoever, resulting from the use of Sierra Instruments standard mass flow meters or controllers for oxygen gas. You are responsible for determining if this mass flow meter or controller is appropriate for your oxygen application.

  • Page 3: Warnings In This Manual

    If the problem persists after following the troubleshooting procedures outlined in Chapter 4 of this manual, contact Sierra Instruments by fax or by e-mail (see inside front cover). For urgent phone support you may call (800) 866-0200 or (831) 373-0200 between 8:00 a.m. and 5:00 p.m. PST. In Europe, contact Sierra Instruments Europe at +31 72 5071400.

  • Page 4: Register Your Product Today

    Warranty Statement All Sierra products are warranted to be free from defects in material and workmanship and will be repaired or replaced at no charge to Buyer, provided return or rejection of product is made within a reasonable period but no longer than one (1) year for calibration and non-calibration defects, from date of delivery.

  • Page 5: Table Of Contents

    Sierra Instruction Manual MaxTrak 180 Table of Contents Warnings in This Manual ............................3 Register Your Product Today ..........................4 Warranty Statement ..............................4 Register Warranty Online ............................4 1 Introduction ..................... 8 Using This Manual............................. 8 Definitions Used In This Manual ....................... 9 The MaxTrak Flow Sensing Principle .......................
  • Page 6 4.9.2 Read Controller Parameters ......................... 37 4.9.3 Info ................................37 5 Technical Support & Service ................ 38 Sierra Customer Service Locations ......................38 Returning Equipment to the Factory ......................38 5.2.1 Factory Calibration-All Models ........................38 5.2.2 Instructions for Returning Your Instruments for Service ................39 5.2.3...
  • Page 7 Sierra Instruction Manual MaxTrak 180 6 Appendix A Gas Tables................. 40 MaxTrak Pre-Programmed Gases: Dial-A-Gas ..................40 K-Factor Calculations-Using MaxTrak with Other Gases ............... 40 Gas Tables and K-Factors ........................41 7 Appendix B: 180 Product Specifications, Dimensions, and Mounting ..44 Optional Parts &...

  • Page 8: Introduction

    Appendix E: Dimensional Drawings & Mounting Instructions. • Appendix F: Warranty Policy • Throughout this manual, we use the word instrument as a generic term to represent all models of Sierra Instruments’ MaxTrak Series 180 mass flow meters and controllers.

  • Page 9: Definitions Used In This Manual

    Sierra Instruction Manual MaxTrak 180 1.2 Definitions Used In This Manual The following terms are used frequently in this manual. They are presented here with their definitions for your information. Setpoint—The command or control signal supplied to a flow controller is called its setpoint. The controller will maintain the flow at this value.
  • Page 10 Sierra Instruction Manual MaxTrak 180 Figure 2. Flow Measuring Principle Figure 3. Sensor Temperature Distribution Figures 2 and 3 show the mass flow through the sensor tube as inversely proportional to the temperature difference of the coils. The coils are legs of a bridge circuit with an output voltage in direct proportion to the difference in the coils’...

  • Page 11: Installation

    -20 to 50°C. If your application exceeds any of these parameters, contact your Sierra Sales Agent before installation. You may also contact one of Sierra’s Technical Support Centers. FACTORY USA: TOLL FREE: 800-866-0200 or PHONE: 831-373-0200 or FAX: 831-373-4402 or EMAIL: service@sierrainstruments.com.

  • Page 12: Pre-Installation Check List

    The o-ring material used in your MaxTrak can be found in the Data Label. See Appendix A for a table of elastomer compatibility with a wide variety of gases. 2. Sierra strongly recommends you install an in-line filter upstream of the instrument. Recommended filter size: 10 micron.

  • Page 13: Vco Fittings

    Sierra Instruction Manual MaxTrak 180 While holding the fitting body steady with a backup wrench, tighten the nut 1-1/4 turns, watching the scribe mark make one complete revolution and continue to the nine o’clock position. For 1/16-inch, 1/8- inch and 3/16-inch (2, 3 and 4 mm) sizes, tighten only 3/4 turns from finger-tight. Do not over-tighten! If you use flexible tubing (Example: Polyflow) use an “Insert”...

  • Page 14: Using Water-Tight (Wt) Cables

    Sierra Instruction Manual MaxTrak 180 for making electrical connection which must be specified at time of order: a waterproof electrical connector (WT in the model code), a cable gland (GLAND in the model code) or an open port for conduit connection (COND in the model code).
  • Page 15 Sierra Instruction Manual MaxTrak 180 Terminal Strip PCA Pin Configuration (inside the enclosure) 44-0206/52-0193 Rev A www.sierrainstruments.com...
  • Page 16 (5 VDC External Setpoint & Valve Purge) Valve Override (close) Black RS-232 Receive (in) Pink 4-20 mA Output White Chassis (Earth) Ground Tan (Light Brown) Not Used NOT CONNECTED NOTE: Sierra recommends individual wires from pins 1, 3, 5, and 10 to power supply ground.

  • Page 17: Basic Analog Installation

    2.6.1 Instrument Power The MaxTrak requires a 24 VDC power supply. If you are using the power supply supplied by Sierra, connect it as noted above. If you are supplying your own power source, it must be a regulated source with ripple not to exceed 100 mV peak-to-peak.

  • Page 18: Configuring Your Instrument

    Sierra Instruction Manual MaxTrak 180 • Valve Close: To force the valve closed, connect the black (pin 12) wire to one of the analog grounds. • Purge: To force the valve to its maximum open position which we call “Purge,” connect pin 4 to pin 11.

  • Page 19: Analog Operation

    Chapter 2, you are ready to supply power. 3.1.1 Power Your Instrument Apply power using Sierra’s power supply or your own power source. See Chapter 2 for complete power supply requirements. Let the instrument warm up for at least 15 minutes for optimal performance. Check the con- figuration of your instrument by reviewing the data label details.

  • Page 20: Maxtrak Analog Features

    You may use the MaxTrak Software to check the setpoint or the valve state currently on your instrument. See Chapter 4 for information on Setpoint and Valve State. 2. Power Your Instrument: Apply power using Sierra’s power sup-ply or your own power source. Chapter 2 for complete Power Supply requirements.

  • Page 21: Changing The Output Or Setpoint Signals

    WARNING: The MaxTrak valve is not a positive shut-off device. Manual valve override is provided for all Sierra mass flow controllers. This feature includes both a valve close command and a valve maximum open command (called purge). When the valve is directed to close or to purge, it will no longer respond to a setpoint command.

  • Page 22: Important Notes About Purging

    WARNING: If an instrument used with a toxic or corrosive gas is returned to the factory, a Material Safety Data Sheet (MSDS) must be enclosed & attached to the outside of the box to alert Sierra personnel of the potential hazard. Also, make sure the inlet & outlet are securely sealed.

  • Page 23: Digital Operation Rs-232 & Smarttrak Software

    If you prefer to write your own software to communicate with the SmartTrak over the RS-232 link, this is certainly possible. Sierra Instruments will provide the Source Code including the Command Set upon request. Unfortunately, this is the limit of software Technical Support we can extend.

  • Page 24: Power Up Your Instruments

    After your instrument is installed and the system has undergone a complete leak check (discussed in detail in Chapter 2), apply power using Sierra’s power supply or your own input power source. See Chapter 2, for power supply requirements. The green LED at the top of the left side will light. If your instrument has a Pilot Module, it will begin its start-up cycle.

  • Page 25: Loading The Smarttrak Software

    Sierra Instruction Manual MaxTrak 180 4.4 Loading the SmartTrak Software If you are using your SmartTrak instrument or your computer for the first time, it is necessary to install the SmartTrak Software into your computer. If this software is already installed, skip this section. If you want to upgrade the SmartTrak Software because you have a higher revision, continue below.

  • Page 26: Establishing Communication

    Sierra Instruction Manual MaxTrak 180 Select the comport pull down menu: Use the pull-down menu to choose the port number that corresponds to the serial port channel your SmartTrak is connected to (from 1 to 255). If you have only one serial port, select “Comm Port 1.” When finished, click on the box marked “OK.”...

  • Page 27: Using The Smarttrak Software

    Sierra Instruction Manual MaxTrak 180 Your SmartTrak instrument is now ready for use! 4.6 Using the SmartTrak Software 4.6.1 Upper Section Software Window Across the upper half of the SmartTrak Software window you will see 3 yellow boxes. These are titled: ❖...
  • Page 28 (open, closed or purge) and the dac values for the valve (for Sierra troubleshooting only). CAUTION: If this box does not show Pilot Module/RS-232 on the first line, you will not be able to give the controller a setpoint command from your computer.
  • Page 29 See the section titled “Change Valve Operation” below for further instructions Full Scale This screen displays the current full-scale value of the instrument with engineering units. It also displays the com port selected and a counter for the com port (for Sierra Troubleshooting only).

  • Page 30: Lower Section Of Software Window-Changing Parameters

    Sierra Instruction Manual MaxTrak 180 4.7 Lower Section of Software Window-Changing Parameters Across the bottom half of the screen you will find a number of white boxes. Each box allows you to adjust one or more meter functions. The various functions are reviewed in the following section.

  • Page 31: Change Valve Operation-Automatic, Close, Purge

    Sierra Instruction Manual MaxTrak 180 4.7.1 Change Valve Operation-Automatic, Close, Purge This function enables or overrides any setpoint command given to the SmartTrak. At start-up, the box will show Automatic: In this normal operating position, the valve is ready to control flow when it receives a setpoint from some source.

  • Page 32: Change Units

    Sierra Instruction Manual MaxTrak 180 Choose the correct gas for your current application and click. The new gas selection will appear in the box. Within a few seconds, the new gas selection will also appear in the yellow Flow box and the values of the mass flow, setpoint and the full scale will be adjusted for this new gas.

  • Page 33: Adjustments

    Sierra Instruction Manual MaxTrak 180 4.8 Adjustments Clicking on “adjustments” brings up the meter settings screen. This screen allows for zeroing, spanning and adjusting the full scale for each of the 10 gases in the gas table individually. The screen will be displayed for the gas selected in the gas table on the main screen.

  • Page 34: Change Zero

    Sierra Instruction Manual MaxTrak 180 4.8.1 Change Zero This button automatically zeros the meter. To perform this zero procedure, you must make sure that the actual flow is zero. Attempting to zero the meter or controller while there is a flow condition will cause an offset. Also, the best zero is obtained by using the actual gas at the listed operating pressure.

  • Page 35: Span

    Sierra Instruction Manual MaxTrak 180 4.8.3 Span This allows the user to enter an offset to the span to adjust the meter outputs to match another device or field conditions. The span is a MULITPLIER and will multiply all outputs by the entered amount.
  • Page 36 Sierra Instruction Manual MaxTrak 180 The instrument’s maximum flow rate is also recorded on the data label (at the back of the instrument) and on the calibration certificate. You may select any full-scale value between 100% and 50% of the maximum full-scale value. If you select a new full-scale value, it will re-define the analog outputs of the instrument.

  • Page 37: Other Useful Features

    Sierra Instruction Manual MaxTrak 180 Here are some guidelines to remember if you choose to modify the Full Scale Value: Changing the full-scale value of the instrument does not affect the accuracy of the measurement. Instrument accuracy is a percentage of the original factory full-scale value If you enter a full-scale value beyond the instrument’s calibrated maximum range, the SmartTrak will automatically...

  • Page 38: Technical Support & Service

    If the problem persists, Sierra is eager to help you. You may contact us at any of the following Technical Support Centers. It may also help to call your Sierra Sales Agent, who is also well trained in the operation and installation of the product.

  • Page 39: Instructions For Returning Your Instruments For Service

    WARNING: If an instrument used with a toxic or corrosive gas is returned to the factory, a Material Safety Data Sheet (MSDS) must be enclosed & attached to the outside of the box to alert Sierra personnel of the potential hazard. Also, make sure the inlet & outlet are securely sealed.

  • Page 40: Appendix A Gas Tables

    Sierra Instruction Manual MaxTrak 180 6 Appendix A Gas Tables 6.1 MaxTrak Pre-Programmed Gases: Dial-A-Gas The following gases have been programmed into the MaxTrak instrument in this order. If you are using one of these gases, you may use the Dial-A-Gas feature in the Software Package and the instrument will adjust the outputs automatically.

  • Page 41: Gas Tables And K-Factors

    Sierra Instruction Manual MaxTrak 180 6.3 Gas Tables and K-Factors Chemical K-factor Density Density Elastomers* Actual Gas Symbol Relative (Cal/g) (g/l) @ (g/l) @ O-ring Valve to Air 70°F 0°C Seat Acetylene .581 .4036 1.079 1.162 1.000 .240 1.200 1.293 Allene (Propadiene) .431...
  • Page 42 Sierra Instruction Manual MaxTrak 180 Chemical K-factor Density Density Elastomers* Actual Gas Symbol Relative (Cal/g) (g/l) @ (g/l) @ O-ring Valve 70°F 0°C Seat Dichloromethylsilane .251 .1882 5.345 5.758 SiCl Dichlorosilane .401 .150 4.183 4.506 Dichlorotetrafluoroethane .220 .1604 7.079 7.626...
  • Page 43 Sierra Instruction Manual MaxTrak 180 Chemical K-factor Density Density Elastomers* Actual Gas Symbol Relative (Cal/g) (g/l) @ (g/l) @ O-ring Valve 70°F 0°C Seat Methyl Mercaptan .521 .2459 1.992 2.146 Methyl Trichlorosilane ) SiCl .251 .164 6.191 6.669 Molybdenum Hexafluoride .210...

  • Page 44: Appendix B: 180 Product Specifications, Dimensions, And Mounting

    Sierra Instruction Manual MaxTrak 180 7 Appendix B: 180 Product Specifications, Dimensions, and Mounting...
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  • Page 50: Optional Parts & Accessories

    The following optional accessories are available from your Authorized Sierra Instruments Representative or directly from Sierra Instruments. They are pro-vided to improve your experience with the SmartTrak Series 100 Mass Flow Meters and Controllers. Call or write for current pricing and availability.

  • Page 51: Appendix C: Pin Configuration And Wiring Diagram

    Sierra Instruction Manual MaxTrak 180 8 Appendix C: PIN Configuration and Wiring Diagram Terminal Strip PCA Pin Configuration (inside the enclosure) 44-0206/52-0193 Rev A www.sierrainstruments.com...
  • Page 52 (5 VDC External Setpoint & Valve Purge) Valve Override (close) Black RS-232 Receive (in) Pink 4-20 mA Output White Chassis (Earth) Ground Tan (light Brown) Not Used NOT CONNECTED NOTE Sierra recommends individual wires from pins 1, 3, 5, and 10 to power supply ground.
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