OMEGA FMA-PC1600 Calibration Unit User's Guide
Below you will find brief information for Calibration Unit FMA-PC1600. The FMA-PC1600 is a portable calibration unit designed to accurately measure gas flow rates of common gases with three separate flow meters. This unit is ideal for field flow meter calibration as it is accurate and repeatable. It features multiple displays for monitoring Mass Flow Rate, Absolute Pressure, Volumetric Flow Rate, and Temperature simultaneously. The FMA-PC1600 also has an RS232 output port that can be connected to a computer or data logger.
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User’s Guide Shop online at omega.com e-mail: [email protected] For latest product manuals: omegamanual.info FMA-PC1600 XXXXXX Xxxxx Xxxxxxxxx Portable Calibration Unit OMEGAnet ® Online Service omega.com Internet e-mail [email protected] Servicing North America: U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047 Stamford, CT 06907-0047 Toll-Free: 1-800-826-6342 Tel: (203) 359-1660 FAX: (203) 359-7700 e-mail: [email protected] Canada: 976 Bergar Laval (Quebec), Canada H7L 5A1 Toll-Free: 1-800-826-6342 FAX: (514) 856-6886 ISO 9001 Certified TEL: (514) 856-6928 e-mail: [email protected] For immediate technical or application assistance: U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA® Customer Service: 1-800-622-2378/1-800-622-BEST® Engineering Service: 1-800-872-9436/1-800-USA-WHEN® Mexico: En Español: 001 (203) 359-7803 [email protected] Benelux: Managed by the United Kingdom Office Toll-Free: 0800 099 3344 TEL: +31 20 347 21 21 FAX: +31 20 643 46 43 e-mail: [email protected] Czech Republic: Frystatska 184 733 01 Karviná, Czech Republic Toll-Free: 0800-1-66342 FAX: +420-59-6311114 FAX: (001) 203-359-7807 e-mail: [email protected] Servicing Europe: France: TEL: +420-59-6311899 e-mail: [email protected] Managed by the United Kingdom Office Toll-Free: 0800 466 342 TEL: +33 (0) 161 37 29 00 FAX: +33 (0) 130 57 54 27 e-mail: [email protected] Germany/Austria: Daimlerstrasse 26 D-75392 Deckenpfronn, Germany Toll-Free: 0 800 6397678 FAX: +49 (0) 7056 9398-29 United Kingdom: ISO 9001 Certified TEL: +49 (0) 7059 9398-0 e-mail: [email protected] OMEGA Engineering Ltd. One Omega Drive, River Bend Technology Centre, Northbank Irlam, Manchester M44 5BD England Toll-Free: 0800-488-488 TEL: +44 (0)161 777-6611 FAX: +44 (0)161 777-6622 e-mail: [email protected] It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification. The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice. WARNING: These products are not designed for use in, and should not be used for, human applications. 3/16/2015 Rev.1 DOC-OMEGAPCUMAN16 Thank you for purchasing an Omega FMA-PC1600 Portable Calibration Unit. Please take the time to find and read the information contained in this manual. This will help to ensure that you get the best possible service from your instrument. The Omega FMA-PC1600 Portable Calibration Unit is designed to accurately measure gas flow rates of common gases with three separate flow meters with ranges determined by your needs. The laminar flow, differential pressure flow meters housed in the FMA-PC1600 are accurate and exceptionally repeatable devices, making the FMA-PC1600 an excellent portable secondary standard for field flow meter calibration. The FMA-PC1600’s three separate displays allow you to monitor Mass Flow Rate, Absolute Pressure, Volumetric Flow Rate, and Temperature simultaneously. The FMA-PC1600 is also equipped with an RS232 output port that can be connected to a computer or other data-logging device. The Omega FMA-PC1600 is designed for CLEAN, DRY, NON-CORROSIVE gases. Please contact Omega if you have any questions regarding the use or operation of this device. 3 TABLE OF CONTENTS CONNECTING THE FMA-PC1600 POWER PRESSURE DISPLAYS AND MENUS MAIN MODE Gas Absolute Pressure Gas Temperature Tare Volumetric Flow Rate Mass Flow Rate Flashing Error Message SELECT MENU GAS SELECT Composer COMMUNICATION SELECT Unit ID Baud MISCELLANEOUS MISC1 Zero Band Pressure Averaging Flow Averaging LCD Contrast MISC2 Standard Temperature and Pressure DIAG TEST Rotate Display MANUFACTURER DATA RS232 Output and Input Configuring HyperTerminal® Tareing via RS232 Changing from Streaming to Polling Mode Gas Select Creating and Deleting Gas Mixtures using RS-232 Collecting Data Data Format Sending a Simple Script File to HyperTerminal® Operating Principle Gas Data Tables Troubleshooting Maintenance and Recalibration Option: Totalizing Mode Accessories FMA-PC1600 Meter Technical Specifications 4 Page 5 7 7 8 8 9 9 9 10 10 10 11 12 13 15 15 15 16 16 16 16 16 16 17 17 18 18 18 19 20 21 21 22 23 24 24 25 26 27 35 37 38 39 40 CONNECTING THE FMA-PC1600 The inlet and outlet connections to the FMA-PC1600 are located below the displays for their respective flow ranges. Inlet connections are located on the left and the outlet connections are located on the right (see page 6) The connections are either 1/8”, 1/4”, 3/8” or 1/2” push-connect style tubing fittings with each fitting corresponding to a single flow range. Use appropriately sized plastic tubing to connect the flow source to the corresponding inlet fitting. If necessary, connect the corresponding outlet fitting to the original source destination with proper tubing. CAUTION: Push-connect fittings are easy to use, as no special tools are required to make the joints. However, special attention must be paid when cutting the tube — as the O-ring inside of the fittings can easily be damaged. It is essential to use the correct cutter such as a pipe slice for copper pipe or dedicated plastic pipe cutters for plastic tube — Do not use a saw because any burrs left on the tube can damage the O-ring and cause the joint to leak! Cut your tube to the required length using the dedicated plastic pipe cutters, making sure you have a straight cut with no burrs. Then push the tubing carefully into the fitting on the bulkhead panel. Softer polyurethane tubing will work best, as opposed to some of the harder plastic tubings available. It decreases the chances of damaging the O-rings. If the outlet fittings are not connected to your piping, the gas being measured will vent to atmosphere at the outlet fittings! Use protective eyewear! Never Vent Flammable Gases To Atmosphere! 5 6 FMA-PC1600 Controls and Connections AC/DC Power Port POWER The FMA-PC1600 is designed to operate on either two 9 Volt Alkaline batteries or via a 9-20 Vdc power supply running at a minimum 150 mA. The batteries will operate the FMA-PC1600 for about 8 hours under normal usage. If the batteries drop below 7 volts, the low battery light will come on and the batteries should be replaced or alternate power should be applied. When the replace battery light is on the accuracy of the meters’ readings cannot be guaranteed. PRESSURE Maximum operating line pressure for FMA-PC1600s with FMA-1600A units is 145 psig (1 MPa). If the line pressure is higher than 145 psig (1 MPa), use a pressure regulator upstream from the flow meter to reduce the pressure to 145 psig (1 MPa) or less. Maximum operating line pressure for FMA-PC1600s with FMA-LP1600A units is 50 psig. Exceeding the maximum specified line pressure may cause permanent damage to the solid-state differential pressure sensor. Do Not subject an FMA-1600A Differential Pressure sensor to upstream-downstream pressure differentials exceeding 75 PSID. Do Not subject a FMA-LP1600A Differential Pressure sensor to upstream-downstream pressure differentials exceeding 15 PSID. While high static pressure will typically not damage the dp sensor, sudden pressure “spikes” can result in complete failure of the sensor. A common cause of this problem is instantaneous application of high‑pressure gas as from a snap acting solenoid valve either upstream or downstream of the meter. If you suspect that your pressure sensor is damaged please discontinue use of the meter and contact Omega. 7 DISPLAYS AND MENUS The device screen defaults to Main display as soon as power is applied to the meter. Main #C +21.50 PSIA +13.60 TARE V + . +0.000 CCM SCCM Air +0.000 SCCM MENU Totalizer (option only) 0000:00:00 BACK If your meter was ordered with the Totalizer option (page 38), pushing the TOTAL button once will bring up the Totalizing Mode display. Pushing MENU will bring up the Select Menu display. SCCM +0.0 TOTAL/ TIMER RESET The Main display shows pressure, temperature, volumetric flow and mass flow. Pressing the button adjacent to a parameter will make that parameter the primary display unit. By hitting the MENU button at the bottom right of the screen you will enter the Select Menu display. SCCM MENU Select Menu MISC GAS SELECT MFG DATA RS232 COMM Select Menu From Select Menu you can change the selected gas, interact with your RS232 settings or read manufacturer’s data. Push MAIN to return to the Main display. MAIN 8 MAIN PSIA +13.60 #C +21.50 TARE V This mode defaults on power up, with mass flow as the primary displayed parameter. The following parameters are displayed in the Main mode. Gas Absolute Pressure: This sensor references hard vacuum and reads incoming pressure both above and below local atmospheric pressure. This parameter +0.000 +0.000 MENU/ SCCM CCM TOTAL is moved to the primary display by pushing the button above PSIA. The engineering unit associated with absolute pressure is pounds per square inch absolute (psia). This can be converted to gage pressure (psig) by subtracting local atmospheric pressure from the absolute pressure reading: PSIG = PSIA – (Local Atmospheric Pressure) +0.00 SCCM Air Gas Temperature: FMA-1600A flow meters measure the incoming temperature of the gas flow. The temperature is displayed UP DOWN MODE in degrees Celsius (°C). This parameter is moved to the primary display by pushing >#C the button above °C. #K #F Pushing the button again allows you to #R select 0C (Celsius), 0K (Kelvin), 0F (Fahrenheit) or 0R (Rankine) for the temperature scale. CANCEL SET To select a temperature scale, use the UP and DOWN buttons to position the arrow in front of the desired scale. Press SET to record your selection and return to the MAIN display. The selected temperature scale will be displayed on the screen. Tare: Pushing the TARE V button tares the flow meter and provides it with a reference point for zero flow. This is an important step in obtaining accurate measurements. It is best to zero the flow meter each time it is powered up. If the flow reading varies significantly from zero after an initial tare, give the unit a minute or so to warm up and re-zero it. If possible, zero the unit near the expected operating pressure by positively blocking the flow downstream of the flow meter prior to pushing the TARE button. Zeroing the unit while there is any flow will directly affect the accuracy by providing a false zero point. If in doubt about whether a zero flow condition exists, remove the unit from the line and positively block both ports before pressing the TARE button. If the unit reads a significant negative value 9 when removed from the line and blocked, it was given a false zero. It is better to zero the unit at atmospheric pressure and a confirmed no flow condition than to give it a false zero under line pressure. Volumetric Flow Rate: This parameter is located in the lower left of the display. It is moved to the primary display by pushing the button below CCM in this example. Your display may show a different unit of measure. Mass Flow Rate: The mass flow rate is the volumetric flow rate corrected to a standard temperature and pressure (typically 14.696 psia and 25 °C). This parameter is located in the lower middle of the display. It can be moved to the primary display by pushing the button below SCCM in this example. Your display may show a different unit of measure preceded by the letter S. To get an accurate volumetric or mass flow rate, the gas being measured must be selected. See Gas Select, page 12. MENU: Pressing MENU switches the screen to the Select Menu display. Flashing Error Message: An error message (MOV = mass overrange, VOV = volumetric overrange, POV = pressure overrange, TOV = temperature overrange) flashes when a measured parameter exceeds the range of the sensor. When any item flashes, neither the flashing parameter nor the mass flow measurement is accurate. Reducing the value of the flashing parameter to within specified limits will return the unit to normal operation and accuracy. If the unit does not return to normal operation contact Omega. 10 SELECT MENU From Select Menu you can change the selected gas, interact with your RS232 settings or read manufacturer’s data. Press the button next to the desired operation to bring that function to the screen. MODEL INFO OMEGA Ph 800-826-6342 Fax 203-359-7700 MISC2 MISC1 BACK BACK MAIN BAUD 19200 BACK MAIN MAIN Manufacturer Data Communications Select Miscellaneous MISC DOWN PAGE UP >Recent Standard Factory Custom Composer User Mixes Bioreactor Breathing Chromatography Fuel CANCEL SELECT UNIT ID A MFG DATA RS232 COMM #C +21.50 PSIA +13.60 GAS SELECT MAIN + +0.000 CCM Select Menu Gas Select TARE V SCCM Air . +0.000 SCCM Main An explanation for each screen can be found on the following pages. 11 MAIN GAS SELECT UP DOWN PAGE >Recent Standard Factory Custom Composer User Mixes Bioreactor Breathing Chromatography Fuel CANCEL SET UP DOWN > Fuel Laser O2 Concentrator Pure Corrosive Pure Non-Corrosive Refrigerant Stack Welding CANCEL PAGE SET Gas Select allows you to set your device to up to 150 standard gases and mixes. You can also use Composer to program and store up to 20 additional gas mixes. Gas Select is accessed by pressing the button below GAS SELECT on the Select Menu display. To select a gas, use the UP and DOWN buttons to position the arrow in front of the desired gas category. »» Recent: Eight most recent selections »» Standard: Gases and mixes standard on earlier Omega instruments (page 32) »» Factory Custom: Present only if customer requested gases were added at the factory »» Composer User Mixes: Gas mixes programmed by the user (page 19) »» Bioreactor (page 31) »» Breathing (page 32) »» Chromatography (page 34) »» Fuel (page 33) »» Laser (page 33) »» O2 Concentrator (page 34) »» Pure Corrosive* (page 28) »» Pure Non-Corrosive (page 27) »» Refrigerant* (page 29) »» Stack (page 34) »» Welding (page 30) Press PAGE to view a new page in the gas category list. Press SELECT to view the gases in the selected category. Align the arrow with the desired gas. Press SET to record your selection and return to the MAIN display. The selected gas will be displayed on the screen. * Pure Corrosive and Refrigerant gases are only available on FMA-1600A-LSS instruments that are compatible with these gases. Note: Gas Select may not be available on units ordered with a custom gas or blend. See pages 27 -34 for a full list of gases in each category. 12 COMPOSER Composer allows you to program and save up to 20 custom gas mixes containing 2 to 5 component gases found in the gas lists (pages 37-34). The minimum resolution is 0.01%. UP DOWN >Add Mix: 20 Free Composer is accessed by selecting Composer User Mixes on the GAS SELECT display. CANCEL SET Press SET when the arrow is aligned with Add Mix. Name the mix by pressing the UP and DOWN buttons for letters, numerals and symbols. CHANGE CASE – Toggles the letter case. Letters remain in selected case until CHANGE CASE is pushed again. UP DOWN NEXT LETTER Composer Mix name: MyGas ------˄ BACK/ CANCEL CHANGE CASE EDIT ADD GAS NAME Composer Mix: MyGAS 0.00% of Total CHANGE BACK/ CANCEL CASE SET GAS OPTNS Press SET to save the name. After naming the mix, press ADD GAS and select the gas category and the component gas. Select the digit with arrow and adjust the % with the UP and DOWN buttons. Press set to save. Add up to 4 more gases as needed. The total must equal 100% or an error message will appear. GAS OPTNS allows you to adjust the percentage of the constituents or delete a gas from the mix. Gas mixes cannot be adjusted after they have been saved. SET 13 UP DOWN SELECT DIGIT UP DOWN SELECT DIGIT Percent of Air: Percent of Ar Argon: 50.00 ˄ 30.00 ˄ BACK/ CANCEL BACK/ CANCEL UP CLEAR SET DOWN SELECT DIGIT EDIT ADD GAS NAME Composer Mix: MyGAS 50% Air 30% AR Argon 20% He Helium 100.00% Total Percent of He Helium: 20.00 ˄ BACK/ CANCEL CREATE NEW CLEAR SET CANCEL SET GAS OPTNS SAVE Once the mix has been saved, you may press CREATE SIMILAR to compose an additional mix based on the mix you have just saved. This CREATE SIMILAR option is not available after leaving this screen. CREATE SIMILAR COMPOSER USER MIX MyGas HAS BEEN SAVED MAIN CLEAR Press CREATE NEW to add a completely new mix. SELECT MIXTURE Press SELECT MIXTURE to bring the custom mix onto the MAIN display. 14 COMMUNICATION SELECT UNIT ID A BAUD 19200 BACK MAIN UNIT ID C UP DOWN C BACK RESET A SET BAUD DOWN UP Access Communication Select by pressing the button above RS232 COMM on the Select Menu display. Unit ID – Valid unit identifiers are the letters A-Z and @. The identifier allows you to assign a unique address to each device so that multiple units can be connected to a single RS232 computer port. Press UNIT ID. Use the UP and DOWN buttons to change the Unit ID. Press SET to record the ID. Press Reset to return to the previously recorded Unit ID. Any Unit ID change will take effect when Communication Select is exited. If the symbol @ is selected as the Unit ID, the device will enter streaming mode when Communication Select is exited. See RS232 Communications (page 19) for information about the streaming mode. Baud – Both this instrument and your computer must send/receive data at the same baud rate. The default baud rate for this device is 19200 baud. Press the Select button until the arrow is in front of Baud. Use the UP and DOWN buttons to select the baud rate that matches your computer. The choices are 38400, 19200, 9600, or 2400 baud. Any baud rate change will not take effect until power to the unit is cycled. 19200 BACK SET 15 MISCELLANEOUS Miscellaneous is accessed by pressing the MISC button on the Select Menu display. Next select either MISC1 or MISC2. MISC1 will display as shown at left. ZERO BAND refers to Display Zero Deadband. Zero deadband is a value below which the display PRESS ZERO FLOW AVG BAND AVG jumps to zero. This deadband is often desired to prevent electrical noise from showing up on the display as minor flows or pressures that do not exist. Display Zero Deadband does not affect the LCD analog or digital signal outputs. BACK MAIN CONTRAST ZERO BAND can be adjusted between 0 and 3.2% of the sensor’s Full Scale (FS). Press ZERO BAND. Then use SELECT to choose the digit with the arrow and the UP and DOWN buttons to change the value. Press SET to record your value. Press CLEAR to return to zero. DOWN UP SELECT Pressure Averaging and Flow Averaging may be useful to make it easier to read and interpret rapidly fluctuating pressures and flows. Pressure and flow averaging can be adjusted between 1 (no averaging) and 256 (maximum averaging). CANCEL SET CLEAR These are geometric running averages where the number between 1 and 256 can be considered roughly equivalent to the response time constant in milliseconds. This can be effective at “smoothing” high frequency process oscillations such as those caused by diaphragm pumps. Press PRESS AVG. Then use SELECT to choose the digit with the arrow and the UP and DOWN buttons to change the value. Press SET to record your value. Press CLEAR to return to zero. Press FLOW AVG. Then use SELECT to choose the digit with the arrow and the UP and DOWN buttons to change the value. Press SET to record your value. DOWN UP Press CLEAR to return to zero. Setting a higher number will equal a smoother display. LCD CONTRAST: The display contrast can be adjusted between 0 and 30, with zero being the CANCEL SET RESET lightest and 30 being the darkest. Use the UP and DOWN buttons to adjust the contrast. Press SET when you are satisfied. Press CANCEL to return to the MISC display. > 0.0 11 16 DIAG TEST STP BACK MAIN MISC2 will display as shown at left. STP refers to the functions that allow selection of standard temperature and pressure conditions. This feature is generally useful for comparison purposes to other devices or systems using different STP parameters. The STP menu is comprised of the STP TEMP and STP PRESS screens. STP TEMP allows you to select from seven standard temperature protocols. The arrow position will automatically default to the currently stored value. Once a selection has been made and recorded using the SET button, a change acknowledgement message will be displayed on screen. STP PRESS STP TEMP BACK Selecting RETURN will revert screen to the Main display. If the SET selection is already the currently stored value, a message indicating that fact will appear. MAIN STP PRESS enables you to select from one of two standard pressure settings. The arrow position will automatically default to the currently stored value. Once a selection has been made and recorded using the SET button, a change acknowledgement message will be displayed on screen. Selecting RETURN will revert screen to the Main display. If the SET selection is already the currently stored value, a message indicating that fact will appear. LN-DN LN-UP 0 C 15 C 15.56 C 60F 20 C C 70F > 21.11 25 C 37 C STP CHANGED 21.11 C RETURN LN-UP > 11 atm bar LN-DN 14.696 PSIA 100KPa 14.50P --- STP ALREADY SET --- SET RETURN STP TEMP Display SET STP PRESS Display 17 SCROLL R8: AP Sig R9: Temp Sig R10: DP Side R11: DP Brdg R13: AP Brdg R16: Meter Fun R18: Power Up BACK 7871 39071 9986 36673 36673 199 32768 MAIN DIAG TEST: This diagnostic screen displays the initial register values configured by the factory, which is useful for noting factory settings prior to making any changes. It is also helpful for troubleshooting with Omega customer service personnel. Select the DIAG TEST button from the MISC2 screen to view a list of select register values. Pressing the SCROLL button will cycle the display through the register screens. An example screen is shown at left. Press ROTATE DISP and SET to Inverted 180° if your device is inverted. The display and buttons will rotate together. MANUFACTURER DATA The initial display shows the name and telephone number of the manufacturer. MODEL INFO OMEGA Ph 800-826-6342 Fax 203-359-7700 BACK Manufacturer Data is accessed by pressing the MFG DATA button on the Select Menu display. MAIN1 Press MODEL INFO to show important information about your flow meter including the model number, serial number, and date of manufacture. Press BACK to return to the MFG DATA display. Push MAIN to return to the Main display. MODEL: FMA-1600A-100SCCM-D SERIAL NO: 100903 DATE MFG: 10/7/2014 DATE CAL: 10/9/2014 CAL BY: DL SW REV: 5v00.G BACK MAIN 18 RS232 Output and Input Connect the male RS232 DB9 port of the FMA-PC1600 to the serial port of your computer or data logger. This will normally require a female/female 9-pin D-sub cable (included). One of the most common ways to access the RS232 output from your FMAPC1600 is through a simple terminal program. Open your Hyperterminal RS232 terminal program (installed under the “Accessories” menu on all Microsoft Windows operating systems). Select “Properties” from the file menu. Click on the “Configure” button under the “Connect To” tab. Be sure the program is set for: 19200 baud and an 8-N-1-None (8 Data Bits, No Parity, 1 Stop Bit, and no Flow Control) protocol. Under the “Settings” tab, make sure the Terminal Emulation is set to ANSI. Click on the “ASCII Setup” button and be sure the “Send Line Ends with Line Feeds” Box is not checked, and that the “Append Line Feeds to Incoming Lines” box is checked. Those settings not mentioned here are normally okay in the default position. Type L, M or H to read data for the desired range. When the queried the window will fill with 6 columns of data representing the range (L=Low, M=Medium, H=High), absolute pressure, temperature, volumetric flow, mass flow, and selected gas respectively. Pressure units are psia, temperature units are Degrees C, volumetric flow units are Liters Per Minute, and mass flow units are Standard Liters Per Minute. The Low range is 0-2 slpm, the Medium range is 0-50 slpm, and the High range is 0-1000 slpm. L +014.70 +025.00 +02.004 +02.004 AIR L +014.70 +025.00 +02.004 +02.004 AIR L +014.70 +025.00 +02.004 +02.004 AIR L +014.70 +025.00 +02.004 +02.004 AIR L +014.70 +025.00 +02.004 +02.004 AIR L +014.70 +025.00 +02.004 +02.004 AIR FMA-PC1600 Mass Flow Meter Data Format (Low Range) Note: On units with the totalizer function the sixth column will be the totalizer value, with gas select moving to a seventh column. 19 RS232 Output and Input Configuring HyperTerminal®: 1. Open your HyperTerminal® RS232 terminal program (installed under the “Accessories” menu on all Microsoft Windows® operating systems). 2. Select “Properties” from the file menu. 3. Click on the “Configure” button under the “Connect To” tab. Be sure the program is set for: 19,200 baud (or matches the baud rate selected in the RS232 communications menu on the meter) and an 8-N-1-None (8 Data Bits, No Parity, 1 Stop Bit, and no Flow Control) protocol. 4. Under the “Settings” tab, make sure the Terminal Emulation is set to ANSI or Auto Detect. 5. Click on the “ASCII Setup” button and be sure the “Send Line Ends with Line Feeds” box is not checked and the “Echo Typed Characters Locally” box and the “Append Line Feeds to Incoming Lines” boxes are checked. Those settings not mentioned here are normally okay in the default position. 6. Save the settings, close HyperTerminal® and reopen it. Streaming Mode In the default Polling Mode, the screen should be blank except the blinking cursor. In order to get the data streaming to the screen, hit the “Enter” key several times to clear any extraneous information. Type “*@=@” followed by “Enter” (or using the RS232 communication select menu, select @ as identifier and exit the screen). If data still does not appear, check all the connections and COM port assignments. Streaming Mode – Advanced The streaming data rate is controlled by register 91. The recommended default rate of data provision is once every 50 milliseconds and this is suitable for most purposes. If a slower or faster streaming data rate is desired, register 91 can be changed to a value from 1 millisecond to 65535 milliseconds, or slightly over once every minute. Below approximately 40 milliseconds, data provision will be dependent upon how many parameters are selected. Fewer data parameters can be streamed more quickly than more. It is left to the user to balance streaming speed with number of parameters streamed. To read register 91, type “*r91” followed by “Enter”. To modify register 91, type “*w91=X”, where X is a positive integer from 1 to 65535, followed by “Enter”. To return to the recommended factory default streaming speed, type “*w91= 50”. 20 Tareing via RS232: Tare –Tareing (or zeroing) the flow meter provides it with a reference point for zero flow. This is a simple but important step in obtaining accurate measurements. It is good practice to “zero” the flow meter each time it is powered up. A unit may be Tared by following the instructions on page 10 or it may be Tared via RS232 input. To send a Tare command via RS232, enter the following strings: In Polling Mode: Address$$V<Enter> (e.g. B$$V<Enter>) Changing From Streaming to Polling Mode: When the meter is in the Streaming Mode, the screen is updated approximately 10-60 times per second (depending on the amount of data on each line) so that the user sees the data essentially in real time. It is sometimes desirable, and necessary when using more than one unit on a single RS232 line, to be able to poll the unit. In Polling Mode the unit measures the flow normally, but only sends a line of data when it is “polled”. Each unit can be given its own unique identifier or address. Unless otherwise specified each unit is shipped with a default address of capital A. Other valid addresses are B thru Z. Once you have established communication with the unit and have a stream of information filling your screen: 1. Type *@=A followed by “Enter” (or using the RS232 communication select menu, select A as identifier and exit the screen) to stop the streaming mode of information. Note that the flow of information will not stop while you are typing and you will not be able to read what you have typed. Also, the unit does not accept a backspace or delete in the line so it must be typed correctly. If in doubt, simply hit enter and start again. If the unit does not get exactly what it is expecting, it will ignore it. If the line has been typed correctly, the data will stop. 2. You may now poll the unit by typing A followed by “Enter”. This does an instantaneous poll of unit A and returns the values once. You may type A “Enter” as many times as you like. Alternately you could resume streaming mode by typing *@=@ followed by “Enter”. Repeat step 1 to remove the unit from the streaming mode. 3. To assign the unit a new address, type *@=New Address, e.g. *@=B. Care should be taken not to assign an address to a unit if more than one unit is on the RS232 line as all of the addresses will be reassigned. Instead, each should be individually attached to the RS232 line, given an address, and taken off. After each unit has been given a unique address, they can all be put back on the same line and polled individually. 21 Gas Select – The selected gas can be changed via RS232 input. To change the selected gas, enter the following commands: In Polling Mode: Address$$#<Enter> (e.g. B$$#<Enter>) Where # is the number of the gas selected from the table below. Note that this also corresponds to the gas select menu on the flow meter screen (the Standard gas category is shown in the example below): # 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 GAS Air Argon Methane Carbon Monoxide Carbon Dioxide Ethane Hydrogen Helium Nitrogen Nitrous Oxide Neon Oxygen Propane normal-Butane Acetylene Ethylene iso-Butane Krypton Xenon Sulfur Hexafluoride 75% Argon / 25% CO2 90% Argon / 10% CO2 92% Argon / 8% CO2 98% Argon / 2% CO2 75% CO2 / 25% Argon 75% Argon / 25% Helium 75% Helium / 25% Argon 90% Helium / 7.5% Argon / 2.5% CO2 (Praxair - Helistar® A1025) 90% Argon / 8% CO2 / 2% Oxygen (Praxair - Stargon® CS) 95% Argon / 5% Methane For example, to select Propane, enter: $$12<Enter> 22 Air Ar CH4 CO CO2 C2H6 H2 He N2 N2O Ne O2 C3H8 n-C4H10 C2H2 C2H4 i-C2H10 Kr Xe SF6 C-25 C-10 C-8 C-2 C-75 HE-75 HE-25 A1025 Star29 P-5 Creating and Deleting Gas Mixtures with Composer using RS232 Note: All commands must be prefixed with the unit ID if the unit is not in streaming mode. You may create and store up to 20 gas mixtures containing up to five constituent gases each. Create a Gas Mixture To create a gas mixture, enter a single-line command according to the following formula: [Unit ID]GM [Gas Name] [Gas Mix Number] [Percent 1] [Gas Number 1] [Percent 2] [Gas Number 2] … Gas Name: Name your mixture using a maximum of 6 characters. Gas Mix Number: Composer user mixes have gas numbers between 236 and 255. You can assign any number in this range to your new mixture. If another mixture with the same number exists, it will be overwritten, even if that gas is currently selected on the unit. If you enter a 0 here, the new mix will be assigned the next available number between 236 and 255. Percent 1: The percentage of the first constituent gas. The percentage of each constituent must be between 0.01 and 99.99. Values entered beyond two decimal points will be rounded to the nearest 0.01%. Gas Number 1: The gas number of the first constituent gas. Percent 2: The percentage of the first constituent gas. Values entered beyond two decimal points will be rounded to the nearest 0.01%. Gas Number 2: The gas number of the first constituent gas. Additional Gases: (Optional) The above pattern of [Percent] + [Gas Number] may be repeated for additional constituent gases up to a total of 5 constituents. The sum of all percentages must be 100.00. On success, the unit ID (if set) is returned followed by a space. The number of the gas mixture is then returned, followed by the percentages and names of each constituent in the mix. If the gas is not successfully mixed, a "?" is returned. Delete a Gas Mixture To delete a gas mixture, enter: [Unit ID]GD [Gas Number]: The number of the Composer user mixture you wish to delete from the unit Only Composer user mixtures can be deleted with this command. On success, the unit ID (if set) is returned followed by a space and the number of the gas deleted. If the gas is not successfully deleted, a "?" is returned. 23 Collecting Data: The RS232 output updates to the screen many times per second. Very short-term events can be captured simply by disconnecting (there are two telephone symbol icons at the top of the HyperTerminal® screen for disconnecting and connecting) immediately after the event in question. The scroll bar can be driven up to the event and all of the data associated with the event can be selected, copied, and pasted into Microsoft® Excel® or other spreadsheet program as described below. For longer term data, it is useful to capture the data in a text file. With the desired data streaming to the screen, select “Capture Text” from the Transfer Menu. Type in the path and file name you wish to use. Push the start button. When the data collection period is complete, simply select “Capture Text” from the Transfer Menu and select “Stop” from the sub-menu that appears. Data that is selected and copied, either directly from HyperTerminal® or from a text file can be pasted directly into Excel®. When the data is pasted it will all be in the selected column. Select “Text to Columns...” under the Data menu in Excel® and a Text to Columns Wizard (dialog box) will appear. Make sure that “Fixed Width” is selected under Original Data Type in the first dialog box and click “Next”. In the second dialog box, set the column widths as desired, but the default is usually acceptable. Click on “Next” again. In the third dialog box, make sure the column data format is set to “General”, and click “Finish”. This separates the data into columns for manipulation and removes symbols such as the plus signs from the numbers. Once the data is in this format, it can be graphed or manipulated as desired. For extended term data capture see page 25 Data Format: The data stream on the screen represents the flow parameters of the main mode in the units shown on the display. For mass flow meters, there are five columns of data representing pressure, temperature, volumetric flow, mass flow and the selected gas. The first column is absolute pressure (normally in psia), the second column is temperature (normally in °C), the third column is volumetric flow rate (in the units specified at time of order and shown on the display), and the fourth column is mass flow (also in the units specified at time of order and shown on the display). For instance, if the meter was ordered in units of scfm, the display on the meter would read 2.004 scfm and the last two columns of the output below would represent volumetric flow and mass flow in cfm and scfm respectively. +014.70 +014.70 +014.70 +014.70 Pressure +025.00 +025.00 +025.00 +025.00 Temp +02.004 +02.004 +02.004 +02.004 Vol. Flow +02.004 +02.004 +02.004 +02.004 Mass Flow Air Air Air Air Gas FMA-1600A Mass Flow Meter Data Format Note: On units with the totalizer function the fifth column will be the totalizer value, with gas select moving to a sixth column. 24 Sending a Simple Script File to HyperTerminal® It is sometimes desirable to capture data for an extended period of time. Standard streaming mode information is useful for short term events, however, when capturing data for an extended period of time, the amount of data and thus the file size can become too large very quickly. Without any special programming skills, you can use HyperTerminal® and a text editing program such as Microsoft® Word® to capture text at defined intervals. 1. Open your text editing program, MS Word for example. 2. Set the cap lock on so that you are typing in capital letters. 3. Beginning at the top of the page, type A<Enter> repeatedly. If you’re using MS Word, you can tell how many lines you have by the line count at the bottom of the screen. The number of lines will correspond to the total number of times the flow device will be polled, and thus the total number of lines of data it will produce. For example: A A A A A A will get a total of six lines of data from the flow meter, but you can enter as many as you like. The time between each line will be set in HyperTerminal. 4. When you have as many lines as you wish, go to the File menu and select save. In the save dialog box, enter a path and file name as desired and in the “Save as Type” box, select the plain text (.txt) option. It is important that it be saved as a generic text file for HyperTerminal to work with it. 5. Click Save. 6. A file conversion box will appear. In the “End Lines With” drop down box, select CR Only. Everything else can be left as default. 7. Click O.K. 8. You have now created a “script” file to send to HyperTerminal. Close the file and exit the text editing program. 9. Open HyperTerminal and establish communication with your flow device as outlined in the manual. 10. Set the flow device to Polling Mode as described in the manual. Each time you type A<Enter>, the meter should return one line of data to the screen. 11. Go to the File menu in HyperTerminal and select “Properties”. 12. Select the “Settings” tab. 13. Click on the “ASCII Setup” button. 25 14. The “Line Delay” box is defaulted to 0 milliseconds. This is where you will tell the program how often to read a line from the script file you’ve created. 1000 milliseconds is one second, so if you want a line of data every 30 seconds, you would enter 30000 into the box. If you want a line every 5 minutes, you would enter 300000 into the box. 15. When you have entered the value you want, click on OK and OK in the Properties dialog box. 16. Go the Transfer menu and select “Send Text File…” (NOT Send File…). 17. Browse and select the text “script” file you created. 18. Click Open. 19. The program will begin “executing” your script file, reading one line at a time with the line delay you specified and the flow device will respond by sending one line of data for each poll it receives, when it receives it. You can also capture the data to another file as described in the manual under “Collecting Data”. You will be simultaneously sending it a script file and capturing the output to a separate file for analysis. Operating Principle All FMA-1600A Gas Flow Meters and FMA-2600A Gas Flow Controllers are based on the accurate measurement of volumetric flow. The volumetric flow rate is determined by creating a pressure drop across a unique internal restriction, known as a Laminar Flow Element (LFE), and measuring differential pressure across it. The restriction is designed so that the gas molecules are forced to move in parallel paths along the entire length of the passage; hence laminar (streamline) flow is established for the entire range of operation of the device. Unlike other flow measuring devices, in laminar flow meters the relationship between pressure drop and flow is linear. STANDARD GAS DATA TABLES: Those of you who have older Omega products (manufactured before October 2005) may notice small discrepancies between the gas property tables of your old and new units. Omega has incorporated the latest data sets from NIST (including their REFPROP 7 data) in our products’ built-in gas property models. Be aware that the calibrators that you may be using may be checking against older data sets such as the widely distributed Air Liquide data. This may generate apparent calibration discrepancies of up to 0.6% of reading on well behaved gases and as much as 3% of reading on some gases such as propane and butane, unless the standard was directly calibrated on the gas in question. As the older standards are phased out, this difference in readings will cease to be a problem. If you see a difference between the Omega meter and your in-house standard, in addition to calling Omega, call the manufacturer of your standard for clarification as to which data set they used in their calibration. This comparison will in all likelihood resolve the problem. 26 27 Short Name C2H2 Air Ar i-C4H10 n-C4H10 CO2 CO D2 C2H6 C2H4 He H2 Kr CH4 Ne N2 N2O O2 C3H8 SF6 Xe Gas Number 14 0 1 16 13 4 3 60 5 15 7 6 17 2 10 8 9 11 12 19 18 PURE NON-CORROSIVE GASES Acetylene Air Argon i-Butane n-Butane Carbon Dioxide Carbon Monoxide Deuterium Ethane Ethylene (Ethene) Helium Hydrogen Krypton Methane Neon Nitrogen Nitrous Oxide Oxygen Propane Sulfur Hexafluoride Xenon Long Name 104.44800 184.89890 226.23990 74.97846 74.05358 149.31840 176.49330 126.59836 93.54117 103.18390 198.45610 89.15355 251.32490 110.75950 311.12640 178.04740 148.41240 205.50210 81.46309 153.53200 229.84830 Absolute Viscosity 1.07200 1.18402 1.63387 2.44028 2.44930 1.80798 1.14530 0.16455 1.23846 1.15329 0.16353 0.08235 3.43229 0.65688 0.82442 1.14525 1.80888 1.30879 1.83204 6.03832 5.39502 0.9928000 0.9996967 0.9993656 0.9735331 0.9699493 0.9949545 0.9996406 1.0005970 0.9923987 0.9942550 1.0004720 1.0005940 0.9979266 0.9982472 1.0004810 0.9998016 0.9945327 0.9993530 0.9838054 0.9886681 0.9947117 Density Compressibilty 14.696 PSIA 14.696 PSIA 25°C 97.374 172.574 210.167 68.759 67.690 137.107 165.151 119.196 86.129 94.697 186.945 83.969 232.193 102.550 293.822 166.287 136.310 191.433 74.692 140.890 212.157 Absolute Viscosity 0°C Density 14.696 PSIA 1.1728 1.2930 1.7840 2.6887 2.7037 1.9768 1.2505 0.1796 1.3550 1.2611 0.1785 0.0899 3.7490 0.7175 0.8999 1.2504 1.9779 1.4290 2.0105 6.6162 5.8980 0.9905 0.9994 0.9991 0.9645 0.9591 0.9933 0.9993 1.0006 0.9901 0.9925 1.0005 1.0006 0.9972 0.9976 1.0005 0.9995 0.9928 0.9990 0.9785 0.9849 0.9932 Compressibilty 14.696 PSIA FMA-1600A-LSS Meters add the following: Ammonia, Chlorine Gas, Hydrogen Sulfide, Nitric Oxide, Nitrogen Triflouride, Propylene, Sulfur Dioxide, and Nitrogen Dioxide to 0.5% in an inert carrier, Refrigerant gases. GAS SELECT > Standard: FMA-1600A Meters will display: Acetylene, Air, Argon, Butane, Carbon Dioxide, Carbon Monoxide, Ethane, Ethylene (Ethene), Helium, Hydrogen, Iso‑Butane, Krypton, Methane, Neon, Nitrogen, Nitrous Oxide, Oxygen, Propane, Sulfur Hexafluoride, Xenon, HE-25, HE-75, A1025, C-2, C-8, C-10, C-25, C-75, P-5, Star29. 28 Long Name Absolute Viscosity 100.92580 81.62541 25°C Density 14.696 PSIA 0.70352 2.35906 Compressibilty 14.696 PSIA 0.9894555 0.9721251 Absolute Viscosity 91.930 74.354 Liquid 0.9613501 Liquid 0.985328 0.98407 0.9745473 0.9898858 0.9951506 0.9995317 0.9809373 0.99282 0.9750866 Liquid 2.6038 Liquid 2.7202 3.1635 2.1090 1.5361 3.1840 1.3394 1.9139 1.4433 2.9312 0°C Density Compressibilty 14.696 PSIA 14.696 PSIA 0.7715 0.9848612 2.6036 0.9614456 Ammonia Butylene (1-Butene) Cis-Butene 79.96139 2.36608 0.9692405 Liquid 81 cButene (cis-2-butene) 82 iButene Iso-Butene 80.84175 2.35897 0.9721626 73.640 83 tButene Trans-Butene 80.28018 2.36596 0.9692902 Liquid 84 COS Carbonyl Sulfide 124.09600 2.48322 0.9888443 113.127 33 Cl2 Chlorine 134.56600 2.93506 0.9874470 125.464 85 CH3OCH3 Dimethylether 90.99451 1.91822 0.9816453 82.865 34 H2S Hydrogen Sulfide (H2S) 123.86890 1.40376 0.9923556 112.982 31 NF3 NF3 (Nitrogen Trifluoride) 175.42500 2.91339 0.9963859 162.426 30 NO NO (Nitric Oxide) 190.05950 1.22672 0.9997970 176.754 36 C3H6 Propylene (Propylene) 85.59895 1.74509 0.9856064 78.129 86 SiH4 Silane (SiH4) 115.94400 1.32003 0.9945000 107.053 35 SO2 Sulfur Dioxide 127.83100 2.66427 0.9828407 116.717 *Pure Corrosive gases are only available on FMA-1600A-LSS instruments that are compatible with these gases. PURE CORROSIVES* Gas Short Number Name 32 NH3 80 1Butene 29 REFRIGERANTS* 25°C Gas Short Absolute Density Compressibilty Absolute Long Name Number Name Viscosity 14.696 PSIA 14.696 PSIA Viscosity 100 R-11 Trichlorofluoromethane 101.60480 5.82358 0.9641448 Liquid 101 R-115 Chloropentafluoroethane 125.14780 6.43293 0.9814628 114.891 102 R-116 Hexafluoroethane 137.81730 5.70097 0.9895011 126.635 103 R-124 Chlorotetrafluoroethane 115.93110 5.72821 0.9738286 105.808 104 R-125 Pentafluoroethane 129.61740 4.98169 0.9847599 118.793 105 R-134A Tetrafluoroethane 118.18820 4.25784 0.9794810 108.311 106 R-14 Tetrafluoromethane 172.44680 3.61084 0.9962553 159.688 107 R-142b Chlorodifluoroethane 104.20190 4.21632 0.9742264 95.092 108 R-143a Trifluoroethane 110.86600 3.49451 0.9830011 101.344 109 R-152a Difluoroethane 100.81320 2.75903 0.9785245 91.952 110 R-22 Difluoromonochloromethane 126.30390 3.58679 0.9853641 115.325 111 R-23 Trifluoromethane 149.13160 2.88404 0.9922734 136.997 112 R-32 Difluoromethane 126.13140 2.15314 0.9875960 115.303 113 RC-318 Octafluorocyclobutane 115.04690 8.42917 0.9700156 104.785 114 R-404A 44% R-125 / 4% R-134A / 52% R-143A 120.30982 4.18002 0.9836342 111.584 115 R-407C 23% R-32 / 25% R-125 / 52% R-134A 123.55369 3.95268 0.9826672 112.698 116 R-410A 50% R-32 / 50% R-125 130.24384 3.56538 0.9861780 122.417 117 R-507A 50% R-125 / 50% R-143A 121.18202 4.23876 0.9838805 112.445 *Refrigerant gases are only available on FMA-1600A-LSS instruments that are compatible with these gases. 0°C Density Compressibilty 14.696 PSIA 14.696 PSIA Liquid Liquid 7.0666 0.9752287 6.2458 0.9858448 6.3175 0.963807 5.4689 0.979137 4.6863 0.9713825 3.9467 0.9948964 4.6509 0.9640371 3.8394 0.9765755 3.0377 0.9701025 3.9360 0.9801128 3.1568 0.9895204 2.3619 0.9827161 9.3017 0.9594738 4.5932 0.9770889 4.3427 0.9762849 3.9118 0.9811061 4.6573 0.9774207 30 28 Star29 WELDING GASES Gas Short Number Name 23 C-2 22 C-8 21 C-10 140 C-15 141 C-20 20 C-25 142 C-50 24 C-75 25 He-25 143 He-50 26 He-75 144 He-90 27 A1025 2% CO2 / 98% Ar 8% CO2 / 92% Ar 10% CO2 / 90% Ar 15% CO2 / 85% Ar 20% CO2 / 80% Ar 25% CO2 / 75% Ar 50% CO2 / 50% Ar 75% CO2 / 25% Ar 25% He / 75% Ar 50% He / 50% Ar 75% He / 25% Ar 90% He / 10% Ar 90% He / 7.5% Ar / 2.5% CO2 Stargon CS 90% Ar / 8% CO2 / 2% O2 Long Name 219.79340 1.64099 0.9991638 25°C Absolute Density Compressibilty Viscosity 14.696 PSIA 14.696 PSIA 224.71480 1.63727 0.9993165 220.13520 1.64749 0.9991624 218.60260 1.65091 0.9991086 214.74960 1.65945 0.9989687 210.86960 1.66800 0.9988210 206.97630 1.67658 0.9986652 187.53160 1.71972 0.9977484 168.22500 1.76344 0.9965484 231.60563 1.26598 0.9996422 236.15149 0.89829 0.9999188 234.68601 0.53081 1.0001954 222.14566 0.31041 1.0003614 214.97608 0.31460 1.0002511 203.890 1.7918 0°C Absolute Density Viscosity 14.696 PSIA 208.673 1.7877 204.199 1.7989 202.706 1.8027 198.960 1.8121 195.198 1.8215 191.436 1.8309 172.843 1.8786 154.670 1.9271 216.008 1.3814 220.464 0.9800 216.937 0.5792 205.813 0.3388 201.175 0.3433 0.998798 Compressibilty 14.696 PSIA 0.998993 0.9987964 0.9987278 0.9985493 0.9983605 0.9981609 0.9969777 0.995401 0.9999341 1.00039 1.000571 1.00057 1.000556 31 BIOREACTOR GASES Gas Short Number Name 145 Bio-5M 146 Bio-10M 147 Bio-15M 148 Bio-20M 149 Bio-25M 150 Bio-30M 151 Bio-35M 152 Bio-40M 153 Bio-45M 154 Bio-50M 155 Bio-55M 156 Bio-60M 157 Bio-65M 158 Bio-70M 159 Bio-75M 160 Bio-80M 161 Bio-85M 162 Bio-90M 163 Bio-95M 5% CH4 / 95% CO2 10% CH4 / 90% CO2 15% CH4 / 85% CO2 20% CH4 / 80% CO2 25% CH4 / 75% CO2 30% CH4 / 70% CO2 35% CH4 / 65% CO2 40% CH4 / 60% CO2 45% CH4 / 55% CO2 50% CH4 / 50% CO2 55% CH4 / 45% CO2 60% CH4 /40% CO2 65% CH4 /35% CO2 70% CH4 / 30% CO2 75% CH4 / 25% CO2 80% CH4 / 20% CO2 85% CH4 / 15% CO2 90% CH4 / 10% CO2 95% CH4 / 5% CO2 Long Name Absolute Viscosity 148.46635 147.54809 146.55859 145.49238 144.34349 143.10541 141.77101 140.33250 138.78134 137.10815 135.30261 133.35338 131.24791 128.97238 126.51146 123.84817 120.96360 117.83674 114.44413 25°C Density Compressibilty 14.696 PSIA 14.696 PSIA 1.75026 0.9951191 1.69254 0.9952838 1.63484 0.9954484 1.57716 0.9956130 1.51950 0.9957777 1.46186 0.9959423 1.40424 0.9961069 1.34664 0.9962716 1.28905 0.9964362 1.23149 0.9966009 1.17394 0.9967655 1.11642 0.9969301 1.05891 0.9970948 1.00142 0.9972594 0.94395 0.9974240 0.88650 0.9975887 0.82907 0.9977533 0.77166 0.9979179 0.71426 0.9980826 0°C Absolute Density Compressibilty Viscosity 14.696 PSIA 14.696 PSIA 136.268 1.9134 0.9935816 135.383 1.8500 0.993893 134.447 1.7867 0.9941932 133.457 1.7235 0.994482 132.407 1.6603 0.9947594 131.290 1.5971 0.9950255 130.102 1.5340 0.9952803 128.834 1.4710 0.9955239 127.478 1.4080 0.9957564 126.025 1.3450 0.9959779 124.462 1.2821 0.9961886 122.779 1.2193 0.9963885 120.959 1.1564 0.9965779 118.987 1.0936 0.9967567 116.842 1.0309 0.9969251 114.501 0.9681 0.9970832 111.938 0.9054 0.9972309 109.119 0.8427 0.9973684 106.005 0.7801 0.9974957 32 178 Metabol BREATHING GASES Short Gas Number Name 164 EAN-32 165 EAN 166 EAN-40 167 HeOx-20 168 HeOx-21 169 HeOx-30 170 HeOx-40 171 HeOx-50 172 HeOx-60 173 HeOx-80 174 HeOx-99 175 EA-40 176 EA-60 177 EA-80 32% O2 / 68% N2 36% O2 / 64% N2 40% O2 / 60% N2 20% O2 / 80% He 21% O2 / 79% He 30% O2 / 70% He 40% O2 / 60% He 50% O2 / 50% He 60% O2 / 40% He 80% O2 / 20% He 99% O2 / 1% He Enriched Air-40% O2 Enriched Air-60% O2 Enriched Air-80% O2 Metabolic Exhalant (16% O2 / 78.04% N2 / 5% CO2 / 0.96% Ar) Long Name 180.95936 Absolute Viscosity 186.86315 187.96313 189.06268 217.88794 218.15984 219.24536 218.59913 216.95310 214.82626 210.11726 205.72469 189.42518 194.79159 200.15060 1.20909 25°C Density 14.696 PSIA 1.19757 1.20411 1.21065 0.39237 0.40382 0.50683 0.62132 0.73583 0.85037 1.07952 1.29731 1.21429 1.24578 1.27727 0.9994833 Compressibilty 14.696 PSIA 0.9996580 0.9996401 0.9996222 1.0002482 1.0002370 1.0001363 1.0000244 0.9999125 0.9998006 0.9995768 0.9993642 0.9996177 0.9995295 0.9994412 170.051 Absolute Viscosity 174.925 175.963 176.993 204.175 204.395 205.140 204.307 202.592 200.467 195.872 191.646 177.396 182.261 186.937 1.3200 0°C Density 14.696 PSIA 1.3075 1.3147 1.3218 0.4281 0.4406 0.5530 0.6779 0.8028 0.9278 1.1781 1.4165 1.3258 1.3602 1.3946 0.9992587 Compressibilty 14.696 PSIA 0.9993715 0.9993508 0.9993302 1.000593 1.000591 1.000565 1.000502 1.000401 1.000257 0.9998019 0.9990796 0.9993261 0.9992266 0.9991288 33 LASER GASES Gas Short Long Name Number Name 179 LG-4.5 4.5% CO2 / 13.5% N2 / 82% He 180 LG-6 6% CO2 / 14% N2 / 80% He 181 LG-7 7% CO2 / 14% N2 / 79% He 182 LG-9 9% CO2 / 15% N2 / 76% He 183 HeNe-9 9% Ne / 91% He 184 LG-9.4 9.4% CO2 / 19.25% N2 / 71.35% He 0.44281 0.34787 0.49078 1.83428 1.85378 123.68517 141.72100 180.46190 81.45829 81.41997 0.9832927 0.9836781 0.9993603 1.0005210 1.0001804 0.9980410 25°C Density Compressibilty 14.696 PSIA 14.696 PSIA 0.36963 1.0001332 0.39910 1.0000471 0.41548 0.9999919 0.45805 0.9998749 0.22301 1.0004728 0.50633 0.9998243 0.68980 111.49608 2.0343 2.0128 0.6589 0.3797 0.5356 0.7534 0.9780499 0.9784565 0.996387 1.000511 1.000396 0.9974725 0°C Absolute Density Compressibilty Viscosity 14.696 PSIA 14.696 PSIA 187.438 0.4033 1.000551 186.670 0.4354 1.00053 186.204 0.4533 1.000514 184.835 0.4997 1.000478 211.756 0.2276 1.000516 183.261 0.5523 1.000458 74.934 74.933 115.045 133.088 168.664 102.980 25°C 0°C Absolute Density Compressibilty Absolute Density Compressibilty Viscosity 14.696 PSIA 14.696 PSIA Viscosity 14.696 PSIA 14.696 PSIA 155.64744 0.79774 0.9989315 144.565 0.8704 0.9992763 151.98915 0.43715 1.0001064 142.249 0.4771 1.000263 147.33686 0.56024 0.9991225 136.493 0.6111 0.9997559 133.63682 0.24825 1.0003901 125.388 0.2709 1.000509 111.77027 0.70709 0.9979255 103.189 0.7722 0.9973965 111.55570 0.69061 0.9980544 103.027 0.7543 0.9974642 Absolute Viscosity 199.24300 197.87765 197.00519 195.06655 224.68017 193.78311 FUEL GASES Short Gas Long Name Number Name 185 Syn Gas-1 40% H2 + 29% CO + 20% CO2 + 11% CH4 186 Syn Gas-2 64% H2 + 28% CO + 1% CO2 + 7% CH4 187 Syn Gas-3 70% H2 + 4% CO + 25% CO2 + 1% CH4 188 Syn Gas-4 83%H2+14%CO+3%CH4 189 Nat Gas-1 93% CH4 / 3% C2H6 / 1% C3H8 / 2% N2 / 1% CO2 190 Nat Gas-2 95% CH4 / 3% C2H6 / 1% N2 / 1% CO2 95.2% CH4 / 2.5% C2H6 / 0.2% C3H8 / 0.1% 191 Nat Gas-3 C4H10 / 1.3% N2 / 0.7% CO2 192 Coal Gas 50% H2 / 35% CH4 / 10% CO / 5% C2H4 193 Endo 75% H2 + 25% N2 194 HHO 66.67% H2 / 33.33% O2 LPG 96.1% C3H8 / 1.5% C2H6 / 0.4% 195 HD-5 C3H6 / 1.9% n-C4H10 LPG 85% C3H8 / 10% C3H6 / 5% n-C4H10 196 HD-10 34 FG-4 FG-5 FG-6 203 204 205 Compressibilty 14.696 PSIA 0.9993849 0.9993670 0.9993580 0.9991842 0.9992919 0.9993996 0.9990536 Compressibilty 14.696 PSIA 0.9993265 0.9992857 1.24078 1.22918 1.21759 1.25520 25°C Density 14.696 PSIA 1.58505 1.53622 175.95200 177.65729 179.39914 174.02840 Absolute Viscosity 223.91060 221.41810 7% O2 / 12% CO2 / 80% N2 / 1% Ar 10% O2 / 9.5% CO2 / 79.5% N2 / 1% Ar 13% O2 / 7% CO2 / 79% N2 / 1% Ar 3.7% O2 / 15% CO2 / 80.3% N2 / 1% Ar 25°C Density 14.696 PSIA 1.31033 1.31687 1.32014 25°C Absolute Density Compressibilty Viscosity 14.696 PSIA 14.696 PSIA 175.22575 1.22550 0.9992625 174.18002 1.24729 0.9991056 Absolute Viscosity 204.53313 205.62114 206.16497 2.5% O2 / 10.8% CO2 / 85.7% N2 / 1% Ar 2.9% O2 / 14% CO2 / 82.1% N2 / 1% Ar Long Name CHROMATOGRAPHY GASES Gas Short Long Name Number Name 29 P-5 5% CH4 / 95% Ar 206 P-10 10% CH4 90% Ar FG-3 202 STACK GASES Gas Short Number Name 200 FG-1 201 FG-2 O2 CONCENTRATOR GASES Gas Short Long Name Number Name 197 OCG-89 89% O2 / 7% N2 / 4% Ar 198 OCG-93 93% O2 / 3% N2 / 4% Ar 199 OCG-95 95% O2 / 1% N2 / 4% Ar Compressibilty 14.696 PSIA 0.9990695 0.9990499 0.99904 Absolute Viscosity 207.988 205.657 166.012 167.401 168.799 164.426 0°C Density 14.696 PSIA 1.7307 1.6774 1.3546 1.3419 1.3293 1.3703 Compressibilty 14.696 PSIA 0.9990036 0.99895 0.9990116 0.9991044 0.9991932 0.9988933 0°C Absolute Density Compressibilty Viscosity 14.696 PSIA 14.696 PSIA 165.222 1.3379 0.9990842 164.501 1.3617 0.9989417 0°C Absolute Density Viscosity 14.696 PSIA 190.897 1.4307 191.795 1.4379 192.241 1.4414 TROUBLESHOOTING Display does not come on or is weak. Check power and ground connections. Flow reading is approximately fixed either near zero or near full scale regardless of actual line flow. Differential pressure sensor may be damaged. Avoid installations that can subject sensor to pressure drops in excess of 10 psid. A common cause of this problem is instantaneous application of high‑pressure gas as from a snap acting solenoid valve upstream of the meter. If you suspect that your pressure sensor is damaged please discontinue use of the meter and contact Omega. Displayed mass flow, volumetric flow, pressure or temperature is flashing and message MOV, VOV, POV or TOV is displayed: Our flow meters and controllers display an error message (MOV = mass overrange, VOV = volumetric overrange, POV = pressure overrange, TOV = temperature overrange) when a measured parameter exceeds the range of the sensors in the device. When any item flashes on the display, neither the flashing parameter nor the mass flow measurement is accurate. Reducing the value of the flashing parameter to within specified limits will return the unit to normal operation and accuracy. If the unit does not return to normal contact Omega. Meter reads negative flow when there is a confirmed no flow condition. This is an indication of an improper tare. If the meter is tared while there is flow, that flow is accepted as zero flow. When an actual zero flow condition exists, the meter will read a negative flow. Simply re-tare at the confirmed zero flow condition. Also note that while the meter is intended for positive flow, it will read negative flow with reasonable accuracy, but not to the full scale flow rate (it is not calibrated for bi-directional flow) and no damage will result. Meter does not agree with another meter I have in line. Volumetric meters are affected by pressure drops. Volumetric flow meters should not be compared to mass flow meters. Mass flow meters can be compared against one another provided there are no leaks between the two meters and they are set to the same standard temperature and pressure. Both meters must also be calibrated (or set) for the gas being measured. FMA-1600A mass flow meters are normally set to Standard Temperature and Pressure conditions of 25° C and 14.696 psia. Note: it is possible to special order meters with a customer specified set of standard conditions. The calibration sheet provided with each meter lists its standard conditions. When performing this comparison it is best to use the smallest transition possible between the two devices. Using small transitions will minimize lag and dead volume. 35 Flow flutters or is jumpy. The meters are very fast and will pick up any actual flow fluctuations such as from a diaphragm pump, etc. Also, inspect the inside of the upstream connection for debris such as PTFE tape shreds. Note: FMA-PC1600 meters feature a programmable geometric running average (GRA) that can aid in allowing a rapidly fluctuating flow to be read (see “Pressure Averaging” and “Flow Averaging” page 16). The output signal is lower than the reading at the display. This can occur if the output signal is measured some distance from the meter, as voltage drops in the wires increase with distance. Using heavier gauge wires, especially in the ground wire, can reduce this effect. RS232 Serial Communications is not responding. Check that your meter is powered and connected properly. Be sure that the port on the computer to which the meter is connected is active. Confirm that the port settings are correct per the RS232 instructions in this manual (Check the RS232 communications select screen for current meter readings). Close Hyperterminal® and reopen it. Reboot your PC. See pages 19 - 25 for more information on RS232 signals and communications. Slower response than specified. FMA-PC1600 Meters feature a programmable Geometric Running Average (GRA). Depending on the full scale range of the meter, it may have the GRA set to enhance the stability/readability of the display, which would result in slower perceived response time. Please see “Pressure Averaging” and “Flow Averaging” on page 16. Jumps to zero at low flow. FMA-PC1600 Meters feature a programmable zero deadband. The factory setting is usually 0.5% of full scale. This can be adjusted between NONE and 3.2% of full scale. See page 16. Discrepancies between old and new units. Please see “Standard Gas Data Tables” explanation on page 26. 36 Maintenance and Recalibration General: Portable Calibration Units require minimal maintenance. They have no moving parts. The single most important thing that affects the life and accuracy of these devices is the quality of the gas being measured. The meters are designed to measure CLEAN, DRY, NON-CORROSIVE gases. Moisture, oil and other contaminants can affect the laminar flow elements. Recalibration: The recommended period for recalibration is once every year. A label located on the FMA-PC1600 lists the most recent calibration date. The FMA-PC1600 should be returned to the factory for recalibration within one year from the listed date. Before calling to schedule a recalibration, please note the serial number on the back of the meter. The Serial Number, Model Number, and Date of Manufacture are also available on the Model Info display (page 18). Cleaning: FMA-PC1600 meters require no periodic cleaning. If necessary, the outside of the meter can be cleaned with a soft dry cloth. Avoid excess moisture or solvents. For repair, recalibration or recycling of this product contact Omega 37 Option: Totalizing Mode Meters and Controllers can be purchased with the Totalizing Mode option. This option adds an additional mode screen that displays the total flow (normally in the units of the main flow screen) that has passed through the device since the last time the totalizer was cleared. The Totalizing Mode screen is accessed by pushing the TOTAL button on the MAIN display. ELAPSED MASS TOTAL TIME 0000:00:00 BACK RESET SCCM +0.0 SCCM MENU MASS TOTAL – The counter can have as many as seven digits. At the time of order, the customer must specify the range. This directly affects the maximum count. For instance, if a range of 1/100ths of a liter is specified on a meter which is totalizing in liters, the maximum count would be 99999.99 liters. If the same unit were specified with a 1 liter range, the maximum count would be 9999999 liters. Rollover – The customer can also specify at the time of order what the totalizer is to do when the maximum count is reached. The following options may be specified: No Rollover – When the counter reaches the maximum count it stops counting until the counter is cleared. Rollover – When the counter reaches the maximum count it automatically rolls over to zero and continues counting until the counter is cleared. Rollover with Notification – When the counter reaches the maximum count it automatically rolls over to zero, displays an overflow error, and continues counting until the counter is cleared. ELAPSED TIME: The small numbers below the mass total show the elapsed time since the last reset in hours, minutes and seconds. The maximum measurable elapsed time is 9999 hours 59 minutes 59 seconds. The hours count resets when RESET is pushed, an RS232 clear is executed or on loss of power. Press ELAPSED TIME to show this as the primary display. RESET – The counter can be reset to zero at any time by pushing the RESET button. To clear the counter via RS232, establish serial communication with the meter or controller as described in the RS232 section of the manual. To reset the counter, enter the following commands: In Polling (addressable) Mode: Address$$T <Enter> (e.g. B$$T <Enter>) 38 Accessories Part Number FMA1600-C1 FMA1600-C2 FMA1600-C3 FMA1600-PSU FMA1600-CRA FMA1600-C1-25FT FMA1600-C2-25FT FMA1600-MDB Description 8 Pin Male Mini-DIN connector cable, single ended, 6 foot length 8 Pin Male Mini-DIN connector cable, double ended, 6 foot length 8 Pin Male Mini-DIN to DB9 Female Adapter, 6 foot length Universal 100-240 VAC to 24 Volt DC Power Supply Adapter 8 Pin Male Right Angle Mini-Din Cable, single ended, 6 foot length 8 Pin Male Mini-DIN connector cable, single ended, 25 foot length 8 Pin Male Mini-DIN connector cable, double ended, 25 foot length Multi-Drop Box 39 Technical Data for Omega FMA-PC1600 Mass Flow Meters FMA-1600A 0 to 0.5 sccm Full Scale through 0 to 1500 slpm Full Scale FMA-LP1600A 0 to 0.5 sccm Full Scale through 0 to 250 slpm Full Scale Standard Operating Specifications (Contact Omega for available options) Performance FMA-PC1600 Mass Flow Meter Accuracy at calibration conditions after tare ± (0.8% of Reading + 0.2% of Full Scale) High Accuracy at calibration conditions after tare ± (0.4% of Reading + 0.2% of Full Scale) High Accuracy option not available for units ranged under 5 sccm or over 500 slpm. Repeatability ± 0.2% Full Scale Zero Shift and Span Shift 0.02% Full Scale / ºCelsius / Atm Operating Range / Turndown Ratio 0.5% to 100% Full Scale / 200:1 Turndown Maximum Measurable Flow Rate 128% Full Scale Typical Response Time 10 ms (Adjustable) Warm-up Time < 1 Second Operating Conditions FMA-PC1600 Mass Flow Meter Mass Reference Conditions (STP) 25 ºC & 14.696 psia (standard — others available on request) Operating Temperature −10 to +50 ºCelsius Humidity Range (Non–Condensing) 0 to 100% FMA-LP1600A: 50 psig1 FMA-1600A: 145 psig Maximum Pressure Ingress Protection IP40 Wetted Materials 303 & 302 Stainless Steel, FKM, Silicone RTV (Rubber), Glass Reinforced Nylon, Aluminum. If your application demands a different material, please contact Omega. 1. Do Not subject a FMA-LP1600A Differential Pressure sensor to upstream-downstream pressure differentials exceeding 15 psid. Communications / Power Monochrome LCD Display with integrated touchpad FMA-PC1600 Mass Flow Meter Simultaneously displays Mass Flow, Volumetric Flow, Pressure and Temperature Digital Output Signal1 RS232 Serial Electrical Supply Two 9 Vdc batteries 9-20 Vdc wall outlet adaptor minimum 150 mA 1. The Digital Output Signal communicates Mass Flow, Volumetric Flow, Pressure and Temperature Range Specific Specifications FS Flow FMA-1600A Meter Pressure Drop at FS Flow (psid)* 0.5 sccm to 1 sccm 1.0 2 sccm to 50 sccm 1.0 100 sccm to 20 slpm 1.0 50 slpm 2.0 100 slpm 2.5 250 slpm 2.1 500 slpm 4.0 1000 slpm 6.0 1500 slpm 9.0 FS Flow FMA-LP1600A Meter 0.5 sccm to 2 sccm 5 sccm to 20 sccm 50 sccm 100 sccm to 200 sccm 500 sccm 1 slpm to 5 slpm 10 slpm 20 slpm 40 slpm 50 slpm 100 slpm 250 slpm *Venting to atmosphere *Venting to atmosphere Pressure Drop at FS Flow (psid)* 0.06 0.07 0.07 0.06 0.07 0.07 0.08 0.25 0.12 0.14 0.24 0.60 No charge for alternate full scale ranges to increase accuracy (e.g. 2.5 slpm) or alternate units of measure (e.g. 133 scfh). Full Scale range applies for all 30 gases and mixtures in the calibration table (page 17). Weight: 12 - 20 lb depending on configuration FMA-PC1600 Case Dimensions: 16” L x 13” W x 7” H Process Connections: 1/8”, 1/4”, 3/8” or 1/2” push-connect style tubing fittings 40 WARRANTY/DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product. If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moistur e or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not limited to contact points, fuses, and triacs. OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for consequential, incidental or special damages. CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/ DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner. RETURN REQUESTS/INQUIRIES Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any correspondence. The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit. FOR WARRANTY RETURNS, please have the following information available BEFORE contacting OMEGA: 1. Purchase Order number under which the product was PURCHASED, 2. Model and serial number of the product under warranty, and 3. Repair instructions and/or specific problems relative to the product. FOR NON-WARRANTY REPAIRS, consult OMEGA for current repair charges. Have the following information available BEFORE contacting OMEGA: 1. Purchase Order number to cover the COST of the repair, 2. Model and serial number of theproduct, and 3. Repair instructions and/or specific problems relative to the product. OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and engineering. OMEGA is a registered trademark of OMEGA ENGINEERING, INC. © Copyright 2009 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC. Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! 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Key features
- Portable
- Accurate
- Repeatable
- Three separate flow meters
- Multiple displays
- RS232 output
Frequently asked questions
The FMA-PC1600 is designed to accurately measure gas flow rates of common gases with three separate flow meters.
The FMA-PC1600 features three separate displays for monitoring Mass Flow Rate, Absolute Pressure, Volumetric Flow Rate, and Temperature simultaneously. It also has an RS232 output port that can be connected to a computer or data logger.
The FMA-PC1600 is designed for CLEAN, DRY, NON-CORROSIVE gases.