Matheson 819 Series Operating Manual
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Matheson 819 Series Operating Manual

Precision mass flow meter
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Precision Mass Flow Meter
Model 819 Series
Operating Manual
READ AND COMPLY WITH THESE INSTRUCTIONS
BEFORE INSTALLING, OPERATING, OR SERVICING
INT-0323-rev B
Page 1

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  • Page 1 Precision Mass Flow Meter Model 819 Series Operating Manual READ AND COMPLY WITH THESE INSTRUCTIONS BEFORE INSTALLING, OPERATING, OR SERVICING INT-0323-rev B Page 1...
  • Page 2 Notice: The manufacturer reserves the right to make any changes and improvements to the products described in this manual at any time and without notice. This manual is copyrighted. This document may not, in whole or in part, be copied, reproduced, translated, or converted to any electronic medium or machine readable form, for commercial purposes, without prior written consent from the copyright holder.
  • Page 3 Thank you for purchasing a MATHESON Gas Flow Meter. Please take the time to read the information contained in this manual. This will help to ensure that you get the best possible service from your instrument. This manual covers the following MATHESON instruments:...

  • Page 4: Table Of Contents

    TABLE OF CONTENTS Page GETTING STARTED MOUNTING PLUMBING POWER AND SIGNAL CONNECTIONS INPUT SIGNALS Analog Input Signal RS-232 Digital Input Signal OUTPUT SIGNALS RS-232 Digital Output Signal Standard Voltage (0-5 Vdc) Output Signal Optional Current (4-20 mA) Output Signal DISPLAYS AND MENUS MAIN Gas Absolute Pressure Gas Temperature...
  • Page 5 TABLE OF CONTENTS Page RS-232 Output and Input Configuring HyperTerminal® Streaming Mode Tareing via RS-232 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 Standard Gas Data Tables Gas Lists with Viscosities, Densities and Compressibilities...

  • Page 6: Getting Started

    GETTING STARTED Power Jack 8 Pin Mini-DIN Display Screen Inlet Connection Port Outlet Connection Port Flow Direction Arrow Medium Mass Flow Meter MOUNTING 819-Series Gas Flow Meters have holes on the bottom for mounting to flat panels. See pages 41-44. 819-Series Meters can usually be mounted in any position.
  • Page 7 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 MATHESON.

  • Page 8: Power And Signal Connections

    POWER AND SIGNAL CONNECTIONS Power can be supplied to your controller through either the power jack or the RJ45 connector. An AC to DC adapter which converts line AC power to DC voltage and current as specified below is required to use the power jack. 819 meters require a 7-30 Vdc power supply with a 2.1 mm female positive center plug capable of supplying at least 100mA.

  • Page 9: Rs-232 Digital Input Signal

    RS-232 Digital Input Signal To use the RS-232 input signal, connect the RS-232 Output Signal (Pin 5), the RS-232 Input Signal (Pin 3), and Ground (Pin 8) to your computer serial port as shown below. (See page 22 for details on accessing RS-232) Serial Cable End PC Serial Port OUTPUT SIGNALS...

  • Page 10: Displays And Menus

    DISPLAYS AND MENUS The device screen defaults to Main display as soon as power is applied to the meter. Main The Main display shows pressure, temperature, volumetric flow and mass flow. TARE V PSIA +13.60 +21.50 Pressing the button adjacent to a +0.00 SCCM parameter will make that parameter...

  • Page 11: Main

    MAIN This mode defaults on power up, with mass flow as the primary displayed parameter. TARE V PSIA The following parameters are displayed in +21.50 +13.60 the Main mode. +0.00 Gas Absolute Pressure: This sensor SCCM SCCM references hard vacuum and reads Mass Flow incoming pressure both above and below local atmospheric pressure.

  • Page 12: Volumetric Flow Rate

    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 MATHESON.

  • Page 13: Select Menu

    SELECT MENU From Select Menu you can change the selected gas, interact with your RS-232 settings or read manufacturer’s data. Press the button next to the desired operation to bring that function to the screen. MODEL INFO M a t h e s o n Ph 800-828-4313 MISC1 MISC2...

  • Page 14: Gas Select

    » Recent: Eight most recent selections » Standard: Gases and mixes standard MATHESON instruments (page 29) » Factory Custom: Present only if customer requested gases were added at the factory » COMPOSER User Mixes: Gas mixes...

  • Page 15: Composer

    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 32-39). The DOWN minimum resolution is 0.01%. >Add Mix: 20 Free COMPOSER is accessed by selecting COMPOSER User Mixes on the GAS SELECT display.
  • Page 16 S E L E C T S E L E C T DOWN DOWN D IG IT D IG IT Percent of Air: Percent of Ar Argon: 50.00 30.00 ˄ ˄ BACK/ BACK/ CANCEL CLEAR CANCEL CLEAR DOWN S E L E C T EDIT ADD GAS G A S...

  • Page 17: Communication Select

    COMMUNICATION SELECT Access Communication Select by pressing the button above RS232 COMM on the Select Menu display. Unit ID – Valid unit identifiers are the UNIT ID BAUD 19200 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 RS-232 computer port.

  • Page 18: Miscellaneous

    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...

  • Page 19: Misc2

    MISC2 will display as shown at left. STP/NPT refers to the functions that allow your selection of standard temperature and STP/ DIAG ROTATE pressure conditions or normal temperature TEST DISP and pressure conditions. This feature is generally useful for comparison purposes to other devices or systems using different STP parameters.

  • Page 20: Diag Test

    It is also helpful for SCROLL R8: AP Sig 7871 troubleshooting with MATHESON customer R9: Temp Sig 39071 service personnel. R10: DP Side 9986...

  • Page 21: Manufacturer Data

    MANUFACTURER DATA Manufacturer Data is accessed by pressing the MFG DATA button on the Select Menu display. The initial display shows the name and MODEL INFO telephone number of the manufacturer. M a t h e s o n Press MODEL INFO to show important Ph 800-828-4313 information about your flow device including the model number, serial...

  • Page 22: Rs-232 Output And Input

    RS-232 Output and Input Configuring HyperTerminal®: Open your HyperTerminal® RS-232 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: 19,200 baud (or matches the baud rate selected in the RS-232 communications menu on the meter) and an 8-N-1-None (8 Data Bits, No Parity, 1 Stop Bit, and no Flow Control) protocol.

  • Page 23: Tareing Via Rs-232

    Tareing via RS-232: 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 RS-232 input.

  • Page 24: Gas Select

    Gas Select – The selected gas can be changed via RS-232 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 controller screen (the Standard gas category is shown in the example below): Argon...

  • Page 25: Creating And Deleting Gas Mixtures Using Rs-232

    0.01 and 99.99. Values entered beyond two decimal points will be rounded to the nearest 0.01%. Gas Number 1: The MATHESON gas number of the first constituent gas. Percent 2: The percentage of the second constituent gas. Values entered beyond two decimal points will be rounded to the nearest 0.01%.

  • Page 26: Collecting Data

    Collecting Data: The RS-232 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®...

  • Page 27: Sending A Simple Script File To Hyperterminal

    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.

  • Page 28: Operating Principle

    As the older standards are phased out, this difference in readings will cease to be a problem. If you see a difference between the MATHESON meter and your in-house standard, in addition to calling MATHESON at 800-828-4313, call the manufacturer of your standard for clarification as to which data set they used in their calibration.

  • Page 29: Gas Lists With Viscosities, Densities And Compressibilities

    GAS SELECT > Standard: will display: Acetylene, Air, Argon, Butane, Carbon Dioxide, Carbon Monoxide, Ethane, Ethylene (Ethene), Helium, Hydrogen, MC Controllers 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. PURE NON-CORROSIVE GASES 25°C 0°C...
  • Page 30 WELDING GASES 25°C 0°C Short Absolute Density Compressibilty Absolute Density Compressibilty Long Name Number Name Viscosity 14.696 PSIA 14.696 PSIA Viscosity 14.696 PSIA 14.696 PSIA 2% CO2 / 98% Ar 224.71480 1.63727 0.9993165 208.673 1.7877 0.998993 8% CO2 / 92% Ar 220.13520 1.64749 0.9991624...
  • Page 31 BIOREACTOR GASES 25°C 0°C Short Absolute Density Compressibilty Absolute Density Compressibilty Long Name Number Name Viscosity 14.696 PSIA 14.696 PSIA Viscosity 14.696 PSIA 14.696 PSIA Bio-5M 5% CH4 / 95% CO2 148.46635 1.75026 0.9951191 136.268 1.9134 0.9935816 Bio-10M 10% CH4 / 90% CO2 147.54809 1.69254 0.9952838...
  • Page 32 BREATHING GASES 25°C 0°C Short Absolute Density Compressibilty Absolute Density Compressibilty Long Name Number Name Viscosity 14.696 PSIA 14.696 PSIA Viscosity 14.696 PSIA 14.696 PSIA EAN-32 32% O2 / 68% N2 186.86315 1.19757 0.9996580 174.925 1.3075 0.9993715 36% O2 / 64% N2 187.96313 1.20411 0.9996401...
  • Page 33 FUEL GASES 25°C 0°C Short Absolute Density Compressibilty Absolute Density Compressibilty Long Name Number Name Viscosity 14.696 PSIA 14.696 PSIA Viscosity 14.696 PSIA 14.696 PSIA Syn Gas-1 40% H2 + 29% CO + 20% CO2 + 11% CH4 155.64744 0.79774 0.9989315 144.565 0.8704...
  • Page 34 O2 CONCENTRATOR GASES 25°C 0°C Short Absolute Density Compressibilty Absolute Density Compressibilty Long Name Number Name Viscosity 14.696 PSIA 14.696 PSIA Viscosity 14.696 PSIA 14.696 PSIA OCG-89 89% O2 / 7% N2 / 4% Ar 204.53313 1.31033 0.9993849 190.897 1.4307 0.9990695 OCG-93 93% O2 / 3% N2 / 4% Ar...

  • Page 35: Supported Units List

    Supported Units: This device supports many different units. You may select the desired units( see page 28). Note that only units appropriate to this device are available for selection. Pressure Units Absolute Gauge Differential Notes pascal hPaA hPaG hPaD hectopascal kPaA kPaG kPaD...
  • Page 36 True Mass Flow Units Label Notes mg/s milligram per second mg/m milligram per minute gram per second gram per minute gram per hour kg/m kilogram per minute kg/h kilogram per hour oz/s ounce per second oz/m ounce per minute lb/m pound per minute lb/h pound per hour...

  • Page 37: Troubleshooting

    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 MATHESON. Meter reads negative flow when there is a confirmed no flow condition.
  • Page 38 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 a Teflon tape shreds. Note: 819-Series meters feature a programmable geometric running average (GRA) that can aid in allowing a rapidly fluctuating flow to be read (see “Pressure Averaging”...

  • Page 39: Maintenance And Recalibration

    Cleaning: 819-Series Flow 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: MATHESON 166 Keystone Drive Montgomeryville, PA 18936 Ph: 800-828-4313...

  • Page 40: Option: Totalizing Mode

    Option: Totalizing Mode - Meters Meters 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.

  • Page 41: 819-Series Technical Specifications

    303 & 302 Stainless Steel, Viton®, Heat Cured Silicone Rubber, Glass Reinforced Polyphenylene Sulfide, Heat Cured Epoxy, Aluminum, Gold, Silicon, Wetted Materials Glass. If your application demands a different material, please contact MATHESON. Communications / Power 819-Series Mass Flow Meter Monochrome LCD Display with...
  • Page 42 26.67mm 1.050in 98.98mm 3.897in [8.53mm] [8.53mm] .336in .336in [13.34mm] 2.375in .525in M5X0.8 (10-32 UNF) .525in Both Sides 56.52mm 3.175mm 2.225in 819-Series: 3.81mm .125in .150in 0 – 0.5 sccm 0 – 1 sccm 0 – 2 sccm 23.495mm 0 – 5 sccm .925in 0 –...
  • Page 43 819-Series: 0 – 50 slpm 40.64mm 1.600in 0 – 100 slpm 110.92mm 4.367in 12.70mm 12.70mm .500in .500in 1/4 NPT 20.32mm Both sides 101.60mm 20.32mm .800in 4.000in .800in 82.55mm 3.250in 4.45mm 19.05mm .175in .750in 36.20mm 1.425in 4X 8-32 UNC .375in[9.53mm] 50 slpm to 100 slpm approximate shipping weight: 2.4 lb. DATE 1/4/2016 REV.
  • Page 44 819-Series: 0 – 50 slpm 40.64mm 1.600in 0 – 100 slpm 110.92mm 4.367in 12.70mm 12.70mm .500in .500in 1/4 NPT 20.32mm Both sides 101.60mm 20.32mm .800in 4.000in .800in 82.55mm 3.250in 4.45mm 19.05mm .175in .750in 36.20mm 1.425in 4X 8-32 UNC .375in[9.53mm] 50 slpm to 100 slpm approximate shipping weight: 2.4 lb. DATE 1/4/2016 REV.

  • Page 45: Rj45 Pin-Out Diagram

    RJ45 Connector Pin-Outs 1 2 3 4 5 6 7 8 8 7 6 5 4 3 2 1 RJ45 Cable RJ45 Device 1. RS-232 Receive 2. Ground 3. Analog Output 4. RS-232 Transmit 5. Power Supply 6. Power Supply 7.
  • Page 46 Notes:...
  • Page 47 Notes:...
  • Page 48 Copyright 2019 Matheson Tri-Gas, Inc. All Rights Reserved. All contents of this document are subject to change without notice and do not represent a commitment on the part of Matheson Tri-Gas, Inc. Every effort is made to ensure the accuracy of this information. However, due to differences in actual and ongoing operational processes and product improvements and revisions, Matheson Tri-Gas, Inc.

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