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Galvanic Applied Sciences AccuChrome MA2963 Operation Manual

Gas chromatograph
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Ac c u C h r om e
TM
G AS C H ROM AT O G R AP H
O P E R AT I O N M AN U AL
P/N: MA2963
Revision 4 Dec. 15, 2018
Galvanic Applied Sciences, Inc.
7000 Fisher Road S.E.
Calgary, Alberta, T2H OW3
Canada
Phone: (403) 252-8470
Fax: (403) 255-6287
E-mail: support@galvanic.com
www.galvanic.com

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  • Page 1 G AS C H ROM AT O G R AP H O P E R AT I O N M AN U AL P/N: MA2963 Revision 4 Dec. 15, 2018 Galvanic Applied Sciences, Inc. 7000 Fisher Road S.E. Calgary, Alberta, T2H OW3 Canada...
  • Page 2 No part of this manual may be reproduced or transmitted in any form or by any means without the written permission of Galvanic Applied Sciences, Inc. Note: Changes or modifications not expressly approved by Galvanic Applied Sciences, Inc. could void the user's authority to operate the equipment.

  • Page 3: Table Of Contents

    T a b l e o f C o n t e n t s ..........1 ECTION VERVIEW OF THE HROME HROMATOGRAPH ..................1 NALYZER ENERAL ESCRIPTION 1.1.1 Introduction ......................1 ..........1 ENERAL ODE OF PERATION OF THE HROMATOGRAPH ......................
  • Page 4 4.4.4 Alarm Tab ......................37 4.4.5 Min and Max Buttons ..................37 ........................38 ABBED AGES 4.5.1 The Chromatogram Tab ..................38 4.5.2 Analysis Results Tab ..................47 4.5.3 Archive Tab ......................49 4.5.4 Events Tab ......................50 4.5.5 Reports Tab ......................51 ..........................
  • Page 5 8.2.2 Modbus List Page – Modicon 16 Mode .............. 92 8.2.3 Modbus List Page – Modicon with Floating Points ..........93 ...................... 93 OMMUNICATION ORTS ....................... 95 ECTION AINTENANCE ........................... 95 VERVIEW ..................95 EEKLY HECK ROCEDURE ACCUCHROME ..................96 LEANING THE ..................
  • Page 6 List of Figures 2-1: M 1 ... 2 IGURE OMPONENTS OF THE CCUCHROME HROMATOGRAPH LASS IVISION 2-2: C ................. 3 IGURE HROMATOGRAPH ALVE AND OLUMNS 2-3: T ................4 IGURE HERMAL ONDUCTIVITY ETECTOR 2-4: T ....................5 IGURE ONTROLLER OARD 2-5: T I/O B ......................
  • Page 7 4-29: A ......................49 IGURE RCHIVE 4-30: E ....................... 50 IGURE VENTS 4-31: R ......................51 IGURE EPORTS 4-32: S ......................52 IGURE AMPLE EPORT 5-1: ACCUCHROME – C ..............54 IGURE ONFIGURATION 5-2: T (ISO M ) ..................57 IGURE IBBON ETHOD...
  • Page 8 12-9: A – 4-20- ............... 115 IGURE NALOG NPUTS ONNECTIONS 12-10: A 4-20 V TXR C ............115 IGURE NALOG NPUTS ONNECTIONS 12-11: O TCD C ............... 116 IGURE ONNECTIONS 12-12: A AC485 T ............116 IGURE RCNET WISTED ONNECTION 12-13: O ...................
  • Page 9 List of Tables 3-1: S ACCUCHROME C ........... 12 ABLE PACE EIGHT OF THE HROMATOGRAPH 7-1: C ........83 ABLE OMPOSITION OF A YPICAL ATURAL ALIBRATION LEND 7-2: T ..................86 ABLE YPICAL LLOWED EVIATION 9-1: ACCUCHROME C 1, D ...............
  • Page 10 Safety Symbols used in Manual The Danger symbol indicates a hazardous situation that, if not avoided will result in death or serious injury. The Warning symbol indicates a hazardous situation that, if not avoided could result in death or serious injury.
  • Page 11 Any safety recommendations or comments contained herein are suggested guidelines only. Galvanic Applied Sciences Inc. bears no responsibility and assumes no liability for the use and/or implementation of these suggested procedures.
  • Page 12 Manufacturer’s Warranty Statement Galvanic Applied Sciences Inc. (“Seller”) warrants that its products will be free from defects in materials and workmanship under normal use and service in general process conditions for 12 months from the date of Product start-up or 18 months from the date of shipping from Seller’s production facility, whichever comes first (the “Warranty Period”).
  • Page 13 • Products that have been altered or repaired by individuals other than Seller personnel or its duly authorized representatives, unless the alteration or repair has been performed by an authorized factory trained service technician in accordance with written procedures supplied by Seller. •...

  • Page 14: Chromatograph

    Section 1 Overview of the AccuChrome Gas Chromatograph Analyzer General Description 1.1.1 Introduction The ACCUCHROME gas chromatograph is designed to identify and quantify the components of natural gas and natural gas products. It can also be used to measure other gaseous samples when fitted with appropriate columns.

  • Page 15: Section 2 Analyzer Design

    Section 2 Analyzer Design Overview The standard ACCUCHROME (Figure 2-1) consists of two compartments. The upper compartment is referred to as the ‘chromatograph oven’, and houses the components involved in the chromatograph analysis process. The 10 port valve (and 6-port valve, in High Speed Heating Value Analysis analyzers), the chromatograph column(s), and the thermal conductivity detector (TCD) are described further in Sections 2.2 and 2.3.

  • Page 16: 2.2 Chromatograph Oven

    1/16” O.D. tube. The length of the column will depend on the specific separation requirements. The micro-packed columns are manufactured by Galvanic Applied Sciences. The chromatograph valve and column are shown in Figure 2-2.

  • Page 17: Thermal Conductivity Detector

    2.2.3 Thermal Conductivity Detector A thermal conductivity detector (TCD) is used to detect the amount of each individual component as it elutes from the chromatograph columns (Figure 2-3). The TCD is housed inside the chromatograph oven and is kept at a very stable temperature to minimize drift. Figure 2-3: Thermal Conductivity Detector The TCD consists of 2 thermistor beads housed in separate compartments, the Reference Cell and the Measure Cell.

  • Page 18: 2.3 Electronics Enclosure

    2.3 Electronics Enclosure The electronics enclosure houses the controller board, the I/O board and the display. Class 1 Division 1 models also have 2 intrinsic safety (IS) barrier boards. Figure 2-1 shows the Class 1 Division 2 model. 2.3.1 The Controller Board Figure 2-4 shows the controller board.

  • Page 19: The Display

    Figure 2-5: The I/O Board 2.3.3 The Display The display (Figure 2-6) is mounted on the analyzer electronics enclosure door (for both Div 1 and Div 2 models). The display uses a local intrinsically safe keypad for navigation and can be used to view status data about the chromatograph.

  • Page 20: The Intrinsic Safety (Is) Barrier

    Figure 2-6: The Display The display is an industrial VGA display with 640 x 480 resolution. It uses TFT technology with 260,000 colors and is sunlight readable. 2.3.4 The Intrinsic Safety (IS) Barrier The IS barrier (Figure 2-7) is used in the Class Division 1 units only. All electrical signals that connect from inside the explosion proof enclosure to inside the GC oven must pass through the IS barrier.
  • Page 21 Figure 2-7: The Intrinsically Safe Barrier Revision 4 12/15/2018...

  • Page 22: 2.4 Typical Gc Oven Arrangements

    2.4 Typical GC Oven Arrangements 2.4.1 12-Minute Cycle Time Systems The oven compartment for a typical 12-minute cycle time ACCUCHROME system is composed of a Valco model DV22 10 port valve and two columns (some applications may only require one). •...

  • Page 23: 4-Minute Analysis Cycle

    Figure 2-9: Two Column Flow Diagram 2.4.2 4-Minute Analysis Cycle The oven compartment for a typical 4-minute cycle time ACCUCHROME system is composed of one Valco model DV22 10 port valve, one Valco model DV22 10 port valve and four columns. Four chromatography columns are used to facilitate the rapid analysis of the sample gas.

  • Page 24: Figure 2-10: 4-Minute Analysis

    Figure 2-10: 4-Minute Analysis Flow Diagram Revision 4 12/15/2018...

  • Page 25: Section 3 Installation

    If there is any obvious physical damage, immediately contact the shipping agent and Galvanic Applied Sciences to report the damage and request that the carrier's agent be present when the unit is unpacked. It is recommended that you retain the shipping container so that it may be used for future shipment of the unit, if necessary.

  • Page 26: Figure 3-1: Physicald

    Figure 3-1: Physical Dimensions - Class 1, Div 2 ACCUCHROME Chromatograph Revision 4 12/15/2018...

  • Page 27: Figure 3-2: Physicald

    Figure 3-2: Physical Dimensions - Class 1, Div 1 Explosion Proof ACCUCHROME Chromatograph Explosion Hazard – Substitution of components may impair suitability for Class 1, Division 1 or Class 1, Division 2. Revision 4 12/15/2018...
  • Page 28 Risque d’explosion – La substitution de composants peut render ce material inacceptable pour les emplacements de Classe I, Division 2. Revision 4 12/15/2018...

  • Page 29: Sampling Considerations

    Consideration must be taken of normal conditions as well as abnormal conditions when designing the sample system as contamination may be an issue. Please contact Galvanic Applied Sciences for assistance. Electrical Requirements The ACCUCHROME is available with 24 VDC power input or 90-240 VAC power input.

  • Page 30: Installation Steps

    Inspect the internal equipment to ensure that no damage has occurred and that no components have become loose during transport. If any damage is visible contact Galvanic Applied Sciences Inc. immediately and do not proceed with the system installation. Do not attempt to facilitate repairs yourself as this will negate and/or invalidate any possible insurance claim or equipment warranty.

  • Page 31: Figure 3-3: Gas Tube - Inp

    Connect the sample gas. The sample gas is extracted from the process pipe by means of a sample probe. Galvanic Applied Sciences recommends the use of a probe/regulator type assembly for the gas extraction. The pressure should be dropped at the sample point from pipeline pressure to 30 - 50 psig and further reduced at the analyzer to 15 psig.

  • Page 32: Figure 3-4: Gas Tube - Inp

    Figure 3-4: Gas Tube-in Ports and Vent, Class 1, Div. 2 System e) There are 2 vents from the oven on the ACCUCHROME. One vent , the “Sample Vent” is used for the gas that flows through the chromatograph injection valve’s sample loop. This line can be vented to atmosphere or to a low pressure flare header.

  • Page 33: Interfacing The Chromatograph To The Computer

    g) Connect the power to the analyzer. A switch or circuit breaker should be included in the building installation. The switch/circuit breaker shall be in close proximity to the equipment and within easy reach of the operator. The switch/circuit shall be marked as the disconnecting device for the equipment.
  • Page 34 A detailed description of the use of the keypad and display is presented in Section 4.2. d) Select either DHCP or Manual and press Enter. • If DHCP is selected, the local area network will automatically assign an IP address to the unit.

  • Page 35: Section 4 The User Interaction Scheme

    Section 4 The User Interaction Scheme Overview The display on the chromatograph provides a broad overview of the system status and the concentration of the various compounds in the sample. The display and keypad used for local control are described in Section 4.2. The application software (GUI) on the computer is designed to generate a configuration (which describes the overall operation of the system), collect and process chromatographic data, generate reports and archive data.

  • Page 36: Figure 4-1: The Display On The Figure 4-2: The Keypadc

    Figure 4-1: The Display on the Chromatograph The bottom line of the display indicates system status. The right two values indicate the elapsed time and the remaining time of the present run. The first field on the bottom line of the display will present Run, Halt Pending or Halt, depending on the present status of the chromatograph.

  • Page 37: The Keypad Controller

    4.2.1 The Keypad Controller The Keypad Controller (Figure 4-2) is used to navigate between the various screens of the display, enter data and initiate/terminate runs. Figure 4-2: The Keypad Controller Panel Prev/Panel Next - used to navigate between panels on the display Field Prev/Field Next - used to navigate between fields on a panel.

  • Page 38: The Analysis Results Tab

    4.2.2 The Analysis Results Tab The Analysis Results tab (Figure 4-1) presents the analytical results and calculated properties from the most recent run. Data from the previous run can be obtained by selecting the Older button (the check mark by Latest will be removed).

  • Page 39: Alarms Tab

    4.2.4 Alarms Tab The Alarms tab (Figure 4-4) presents a list of alarms that have been observed. Figure 4-4: The Alarms Tab Revision 4 12/15/2018...

  • Page 40: Gc Status Tab

    4.2.5 GC Status Tab The GC Status tab (Figure 4-5) indicates the instantaneous status of the system and is read- only information. Figure 4-5: GC Status Tab Revision 4 12/15/2018...

  • Page 41: I/O Status Tab

    4.2.6 I/O Status Tab The I/O Status tab (Figure 4-6) is used to indicate the present status of the Digital Inputs, Relays, Valves and Solenoids. A green background indicates that the device is currently turned on while a grey background indicates that it is turned off. This information cannot be edited by the controller.

  • Page 42: System Tab

    4.2.7 System Tab The System tab (Figure 4-7) has 3 sub tabs. 4.2.7.1 Info Sub-tab The Info sub-tab (Figure 4-7) presents information that may be useful when you are requesting assistance from Galvanic Sciences. This information cannot be edited. Figure 4-7: Info Screen The Revert button sets the values to the previous settings and the Save button is used to enable the changes.

  • Page 43: Figure 4-8: The Network Tab

    4.2.7.2 Network Sub-tab The Network sub tab (Figure 4-8) is used to establish communication between the chromatograph and the computer. A detailed discussion of this topic is presented in Section 3.6. Figure 4-8: The Network Tab Revision 4 12/15/2018...

  • Page 44: Figure 4-9: The Tools Tab

    4.2.7.3 The Tools Sub-tab The Tools sub-tab (Figure 4-9) can be used to adjust the backlighting of the display and fan speed for the microprocessor cooler (optional). The More and Less buttons are used to adjust the settings (the slider is merely an indication of the level and is controlled by these buttons) The Analysis Y Range and Analysis X Range fields are used to set the scale for the display of the Chromatogram (Section 4.2.3).

  • Page 45: Powering Up The Application Software

    Powering Up the Application Software This discussion assumes that the computer and chromatograph have been interfaced as described in Section 3. Start the connection protocol selecting the ACCUCHROME icon on the desktop (Figure 4- 10). Figure 4-10: ACCUCHROME Icon The Log In Navigation window (Figure 4-11) will be presented (superimposed on the main window).
  • Page 46 Figure 4-12: New Connection Setup Dialog Box a) Enter the IP address for the system, ensure that the port is set to 6555 and enter the name for of the system in the Description field. b) Press the Add button, then press the Save button. The information will appear in the table.

  • Page 47: Figure 4-14: Select Moded

    The IP address and description can be selected via the drop down menus. The polling analyzer data time can be set between 200 and 1000 ms. Press Connect when the appropriate IP address and name are indicated. Connect to Front Panel - Allows for communication between the computer and the chromatograph via the front Ethernet connection.

  • Page 48: The Main Screen - View Mode

    The Main Screen - View Mode The main screen in View mode is presented in Figure 4-15 and consists of a number of different regions. Figure 4-15: Main Screen ACCUCHROME a) Quick Access Toolbar (Section 4.4.1) b) Toolbar (Section 4.4.2) c) System Operating Parameters (Section 4.4.3) d) Alarms (Section 4.4.4) e) Min/Max Buttons (Section 4.4.5)

  • Page 49: Quick Access Toolbar

    4.4.1 Quick Access Toolbar The Quick Access Toolbar (Figure 4-16) includes a number of items that are used for general purposes. Figure 4-16: Toolbar - Accesses a menu that includes Restore, Move, Size, Maximize, Minimise and Close. These are standard Windows commands. - Toggles between Connect to Analyzer and Disconnect from This is used Analyzer.

  • Page 50: System Operating Parameters

    Log In/Log Out - Presents the Log in Navigation dialog box (Figure 4-11). When the system is logged in, the function of this button toggles to Log Off. Permanent Configuration Write - stores the present configuration on the chromatograph. Save Configuration - stores the present configuration on the computer Change Password - presents a dialog box to enter the existing password and the new password.

  • Page 51: Tabbed

    Tabbed Pages There are five tabbed pages in Read Only Mode: • Chromatogram - present chromatographic data and allow for data manipulation (Section 4.5.1). • Analysis Results - presents a listing of analytical data from the chromatograph (Section 4.5.2). • Archives - presents a listing of stored analytical data (Section 4.5.3). •...

  • Page 52: Figure 4-19: Chromatogram

    4.5.1.1 Ribbon Bar Figure 4-19: Chromatogram Tab Ribbon Bar The Ribbon Bar on the chromatogram tab provides access to a number of commands to present the chromatogram as desired. • Trace Color – presents a palette of colors (Figure 4-20). To select the desired color for the TCD trace, move the cursor to it and press the mouse button.

  • Page 53: Figure 4-22: Presentinga

    • Actions – displays chromatographic actions on the chromatogram (Figure 4-22). Two action lists can be generated. Figure 4-22: Presenting Actions on the Chromatogram Figure 4-23: Actions list Selection The action can be edited by dragging them or by right clicking in the action description box.

  • Page 54: Figure 4-24: C

    Figure 4-24: Chart options when clicking in the action description box Figure 4-25: Action when clicking in the action description box • Components – displays the chromatogram and below that, each component integration window parameters Figure 4-26: Components integration windows along with chromatogram To look at an individual component and its integration window parameters, use the mouse with the left button down to draw a box around the component of interest.

  • Page 55: Figure 4-27: Individual Component Zoomed In

    Figure 4-27: Individual component zoomed in Figure 4-28: Component editing on Chromatogram Tab The component integration parameters can be edited right on the chromatogram by right clicking the mouse on the retention timeline (line through the highest part of the component peak). Under Components, choose: Edit component. Revision 4 12/15/2018...

  • Page 56: Figure 4-29: C

    Figure 4-29: Component edit window accessed on the chromatogram Tab Figure 4-23: Pause Poll Functions Revision 4 12/15/2018...
  • Page 57 a) Retrieve Chromatogram – presents a standard Windows Open dialog box to download saved files from the chromatograph (*.bin). b) Upload Chromatogram - presents a standard Windows Open dialog box to send files to the chromatograph. c) Analyze Chromatogram - determines the concentration of the various gases and calculates the relevant parameters using the present configuration.
  • Page 58 Figure 4-24: Chart Commands Revision 4 12/15/2018...
  • Page 59 a) Legend Outside – Moves the field that defies the trace outside of the chromatogram b) Show Border – places a border around the chromatogram c) Interlaced – if selected, all of the boxes are colored not only half the boxes. d) Marker Point –...

  • Page 60: Analysis Results Tab

    Figure 4-26: Archived Markers Display Selection Dialog Box 4.5.2 Analysis Results Tab The Analysis Results tab (Figure 4-27) presents a detailed listing of the most recent 10 runs of a given type. Figure 4-27: Analysis Results Tab Revision 4 12/15/2018...
  • Page 61 The left column presents a list of streams for which data is available. The Refresh icon is used to update the data. The ►and ◄arrows in the upper right corner are used to scroll the data. If the Display Physical Properties check box is selected, additional information as shown in Figure 4-28 will be presented.

  • Page 62: Archive Tab

    4.5.3 Archive Tab The Archive tab (Figure 4-29) presents a summary of recently performed analysis. It includes the time stamp, type of calculation (saturated or dry), the concentration of each gas, the normalized total and un-normalized total of the concentration of the various gases. Figure 4-29: Archive Tab The icons on the top of the tab include Read Archives, which is used for updating the archives, and Export to File which is used to send the data to Excel.

  • Page 63: Events Tab

    4.5.4 Events Tab The Events tab (Figure 4-30) presents a list of all of the events that have occurred during the analyses Figure 4-30: Events Tab Revision 4 12/15/2018...

  • Page 64: Reports Tab

    4.5.5 Reports Tab The Reports tab (Figure 4-31) is used to generate various reports of analysis and calibration data. Figure 4-31: Reports Tab Indicate the desired report format (s) and press the button corresponding to the desired data. Revision 4 12/15/2018...
  • Page 65 A sample report is shown in Figure 4-32. Figure 4-32: Sample Report Revision 4 12/15/2018...

  • Page 66: Alarms

    Alarms The alarms tab shows any active alarms. Clicking on the alarms tab will open the Alarms tab window. Revision 4 12/15/2018...

  • Page 67: Configuring The Gc

    Section 5 Configuring the GC The Configuration The Configuration is the collection of parameters that define the operation of the chromatograph. The Configure G.C. tab (Figure 5-1) is accessed by selecting the Edit option on the Select Mode dialog box (Section 5.2.1), entering the password (the default password is 2222) and pressing the Configure G.C.
  • Page 68 The Component Table lists all of the compounds in the sample and includes chromatographic parameters that are used to identify the compounds of interest and perform quantitative analysis (Section 5.4). In addition, the component table includes parameters that describe the calibration gas so that a variety of various physical properties of the sample can be calculated.

  • Page 69: General Guidelines For Editing A Configuration

    General Guidelines for Editing a Configuration When generating/editing a configuration, the following guidelines should be followed: a) It is necessary to be in Edit mode to generate or edit a configuration. b) After a configuration is generated/edited using the computer, it must be downloaded to the chromatograph to be used.

  • Page 70: The Component Table

    The Component Table The Component Table consists of three regions: • A ribbon which contains controls for the table of chromatographic information and is used to enter a number of values used in calculations. The nature of the ribbon is dependent on the selection of the Method.

  • Page 71: Figure 5-3: The Ribbon - Gpa

    The Use Unnormalized Concentration should be checked if it desired that the reported concentration correspond to the actual percentage of each gas is reported (i.e. not normalized to 100%) Method - This field is used to select if the GPA, ISO or Liquid standard method is to be employed.
  • Page 72 Add Component – used to add a line to various tables as described below. The line is added directly below the line indicated by the ►. Delete Component – is used to remove the line in the table indicated by the ►. Write to Analyzer –...

  • Page 73: Chromatographic Parameters

    Chromatographic Parameters 5.4.1 General Parameters The Component Table (Figure 5-4) lists each of the compounds to be analyzed for and includes chromatographic data to identify and quantitate them. Figure 5-4: Component Table The Component Table contains the following: • Component Name - the name of the compound to be quantified. Do not edit the names of the components.

  • Page 74: Skimming Parameters

    Conc n = RF n × Area n Where: Conc n = concentration of component n RF n = response factor of component n Area n = area of peak produced by component n • Allowable Response Factor Deviation - if the response factors are automatically calculated, this represents the range in which the value is acceptable.

  • Page 75: Figure 5-5: Definition Of A P

    The following example shows how the system determines if a peak is a valid peak: The peak for iso-Butane is expected at 70.405sec. ± 5.000 sec. as defined by the component table. The Skimming Peak Start and Skimming Peak End parameters are 69.2 seconds and 71.8 seconds.

  • Page 76: Fitting Parameters

    Negative Peak -if the peak for this gas is a negative peak, check the box. Old Response Factor - This is the response factor generated from the previous calibration. Old Response Time - This is the retention time generated from the previous calibration. Difference in Response Time - This is the difference in seconds between the previous calibration and the current calibration.

  • Page 77: Action List

    Action List The Action list (Figure 5-7) is used to program a variety of activities during the separation such as opening/closing a valve, setting the gain, setting a zero and indicating the end of an analysis. Figure 5-7: Action List with Tools Add Action - presents the Add Action dialog box (Figure 5-8).

  • Page 78: Figure 5-9: Set Gain Action

    Figure 5-8: Add Action Dialog Box The Action Type is selected via the top drop down menu: • If a Valve Action (Valve Off, Valve On) is selected, the Valve Number and Action Time for the action can be selected. The Valve number field is used to select the appropriate valve. The SSO entry on the valve number list is used to purge the valve prior to placing the sample in the injector.

  • Page 79: Streams Setup

    The gain can be set from 0.2 to 3,200,000 by setting the Dx switches (e.g. if D7 is set to 1 and all other are set to 0, the gain is 0.2). a) If the Set Zero action is selected, the dialog box that is presented allows for setting the time for setting the signal to zero.

  • Page 80: Figure 5-10: Streams Setup

    Figure 5-10: Streams Setup Revision 4 12/15/2018...
  • Page 81 Run Name - User defined Run Type - The stream type can be an Analysis, a Calibration or a Reference stream, selected via the drop down menu. Selection of a Reference type selection presents the same tab as a Stream type. The Calibration tab includes a button for Manual Calibration, which will initiate a calibration sequence.
  • Page 82 Figure 5-11: Low Dry Alarm Limits Table - leads to a menu where you can add or delete icons for the above items and place the icon(s) and definition(s) directly below the table. Revision 4 12/15/2018...

  • Page 83: Stream Sequencer

    Stream Sequencer The Stream Sequencer screen (Figure 5-12) is used to indicate the order of runs within a sequence. Figure 5-12: Stream Sequencer Screen To enter a run in a sequence, click on the drop down menu and select the desired run type. The available runs are those that have been generated on the Streams Setup screen.

  • Page 84: Stream Scheduler

    Stream Scheduler The Stream Scheduler (Figure 5-13) is used to indicate when the various streams should be analyzed and indicate if a stream is to be analyzed on a repetitive basis. Each stream can be scheduled independently. Figure 5-13: Stream Scheduler To set the start time for a stream: a) Press the ▼...

  • Page 85: Digital Inputs

    Digital Inputs The Digital Inputs screen (Figure 5-14) is used to define the role of the four digital inputs. The input can be set to Enable Run or Enable Alarm. If Enable Run is selected, then the stream that is defined in the Run field will be executed when the input is activated. If Alarm is selected, then the digital input is attached to a switching device (such as a pressure switch) and will generate an a alarm if the digital input is activated.

  • Page 86: 5.10 Digital Outputs

    5.10 Digital Outputs The Digital Outputs screen (Figure 5-15) is used to assign the various available alarms to specific digital outputs. Once the parameters are set, the Write to Analyzer button should be pressed to send the information to the chromatograph. Figure 5-15: Digital Outputs Screen Revision 4 12/15/2018...

  • Page 87: 5.11 Analog Inputs

    5.11 Analog Inputs The Analog Inputs screen (Figure 5-16) is used to define the role of the four analog inputs. The alarm limits should be set and the appropriate check boxes selected. Once the parameters are set, the Write to Analyzer button should be pressed to send the information to the chromatograph.

  • Page 88: 5.12 Analog Outputs

    5.12 Analog Outputs The Analog Outputs screen (Figure 5-17) is used to set parameters for the transmission of data to an external device. The parameter to be transmitted is selected via the Parameter drop down menu, the range should be selected and press the Write to Analyzer button . Figure 5-17: Analog Outputs Screen Revision 4 12/15/2018...

  • Page 89: 5.13 Global Setting

    5.13 Global Setting The Global Setting tab (Figure 5-18) is used to provide system identification. Figure 5-18: Global Setting The Contract Start Hour is the time of day at which the daily average is calculated. If the Halt on Start Up check box is selected, the system will be in Halt mode when it boots up.

  • Page 90: Section 6 Using The Instrument

    Section 6 Using the Instrument Introduction The ACCUCHROME is designed to monitor the composition of a gas stream on a programmed basis. The system can analyze gas samples, a reference gas (gas of known composition to verify acceptable system operation), and calibration gas (which is used to calculate/recalculate response factors) as desired.

  • Page 91: Viewing Data

    Figure 6-1: A Typical Chromatogram The chart format can be altered in a variety of ways (e.g. changing the color). To access a drop down menu that includes the options, right click in the chromatogram and press the Chart button that is presented. 6.2.2 Viewing Data A table containing the most recent data can be viewed via the Analysis Results tab (Figure...

  • Page 92: Figure 6-2: Analysis Results

    Figure 6-2: Analysis Results Archival data can be viewed via the Archives tab (Figure 6-3). Figure 6-3: Archive Tab If desired, archival data can be sorted by clicking on the Stream column header. To unsort the data, click on the Reload Downloaded Archives button. The data can be exported to an Excel spreadsheet by clicking on the Export to File button.

  • Page 93: Generating Reports

    6.2.3 Generating Reports A range of reports can be generated via the Reports tab (Figure 6-4). Select the desired report format (Print, PDF, Open File) and press the button that describes the report that you want. Figure 6-4: The Report Tab Setting up the Desired Analysis In addition to the activities described in the View mode, the Edit Mode allows the user to edit a broad range of operating parameters, calibrate the system, establish a data collection...

  • Page 94: Editing The Component Table

    6.3.1 Editing the Component Table The component table contains a list of the compounds to be analyzed, properties of the calibration gas, the concentration of the various components of the calibration gas and parameters used for integration. Once the GC is setup it is unlikely that the user would have to add components to the list. However, it may be necessary to change any of the time based parameter due to column ageing and valve wear.

  • Page 95: Editing An Action

    Figure 6-6: Integration Window d) Select Skimming as the Integration Method and enter the integration window data in the appropriate fields. e) Select the desired items (e.g. method, Heating value Units, Base Pressure and concentration of higher alkanes). Edit the Calibration Gas Physical Properties at the bottom of the window. Do not adjust the Savitzky Golay fields.

  • Page 96: Section 7 Accuchrome Validation

    Section 7 ACCUCHROME Validation Overview The ACCUCHROME should be validated on a monthly basis or as per the measurement requirements of the user. The validation process involves analyzing a known gas mixture and comparing the analyzer results to the certified value of the known mixture. This known mixture is referred to as the calibration gas.

  • Page 97: Role Of The Calibration Gas And The Reference Gas

    Role of the Calibration Gas and the Reference Gas The calibration gas and the reference gas are the same gas, but are handled differently in the application software. In the Stream Sequencer screen, the analyst must indicate the nature of the gas to be analyzed.

  • Page 98: Figure 7-1: Stream Sequencer

    To Validate the System: a) Place the analyzer into Reference mode via the Stream Sequencer selection of the Configure G.C. tab (Figure 7-1). Figure 7-1: Stream Sequencer Selection of the Configure G.C. Tab b) Set the top entry in the Sequence of Runs field to Ref 1 (or Ref 2 as required). If there are additional entries in the table, delete them by moving the highlight to it (the active entry will be highlighted in blue) and press the Delete Sequence button.

  • Page 99: Determining If The Chromatograph Is Functioning In An Acceptable Manner

    Determining if the Chromatograph is Functioning in an Acceptable Manner There are a number of values that can be checked to see if the system is functioning properly: a) Compare the results of the analysis of the calibration gas to the certified value of the calibration gas.

  • Page 100: Remedial Activities If The Observed Results Do Not Meet The Certified Values

    Remedial Activities if the Observed Results do not Meet the Certified Values If the results are not within specification, the following steps should be taken: a) Verify that the carrier gas pressure is set correctly. The correct setting for the carrier gas is and is also indicated on the carrier gas regulator’s pressure gauge.

  • Page 101: Figure 7-3: Skimmingp

    Figure 7-3: Skimming Parameters indicate the Windows in which the peak minima can be found g) Verify the valve timing. There are 2 areas where drift in the retention times of the peaks may cause problems with the valve actions. •...

  • Page 102: Section 8 Modbus

    If the user requires assistance in setting up a Modbus configuration, the Service department at Galvanic Applied Sciences Inc. will assist in configuring the unit as desired. When the Modbus selected, the main Modbus page (Figure 8-1) is opened. There are three...

  • Page 103: The Modbus List Page

    The Modbus List Page The Modbus List page (Figure 8-1) lists general information about the Modbus data protocol. The format will depend, in part on the selections made on the lop line of the page. Type - There are three Modbus types: Enron (Section 8.2.1), Modicon 16 (Section 8.2.2) and Modicon with Floating Point (Section 8.2.3).

  • Page 104: Figure 8-2: Enron Mode , S

    Figure 8-2: Enron Mode, Short Integers Revision 4 12/15/2018...

  • Page 105: Modbus List Page - Modicon 16 Mode

    Figure 8-3: Enron Mode, Floating Points 8.2.2 Modbus List Page – Modicon 16 Mode A Modicon 16 Modbus list contains 4 nodes on the Modbus tree. They are Output Status, Input Status, Input Register, and Output Register. The Input and Output Status nodes contain Boolean data points.

  • Page 106: Modbus List Page - Modicon With Floating Points

    8.2.3 Modbus List Page – Modicon with Floating Points Modicon with Floating Point is similar to the Modicon 16, as it contains 4 main nodes on the Modbus tree. However, the Input and Output Registers contain sub-nodes. They are Register Short, Register Long, and Register Float. Thus, the input and output registers can output data in 16-bit, 32-bit, or 32-bit with floating point in the Modicon with Floating Point Modbus list.

  • Page 107: Figure 8-5: Setting Portc

    There are two aspects to this page: The Enable Serial Ports, Expansion Serial Ports and Ethernet (TCP) fields on the left are used to indicate the port through which the data is to be exported. Each item in these three regions can be toggled to either Modbus 1 or None.

  • Page 108: Section 9 Maintenance

    A spare parts list is provided in Section 9.8. . If difficulty is encountered performing any of the maintenance procedures outlined in this section, additional technical assistance may be obtained from: Galvanic Applied Sciences, Inc, 7000 Fisher Road SE Calgary, Alberta T2H 0W3 CANADA...

  • Page 109: Cleaning The Accuchrome

    Figure 9-1: ACCUCHROME Natural Gas Chromatograph Checkout Sheet If any of the diagnostic parameters deviate from the specifications, consult the Troubleshooting section in this manual (Section 10) or contact Galvanic Applied Sciences. Cleaning the ACCUCHROME The exterior of the unit can be cleaned with a cleaner that is suitable for stainless steel.

  • Page 110: Maintaining Flow Control

    If scrubbers are employed with HP grade helium, please contact Galvanic Applied Sciences Inc for specific recommendations. The sample pressure is not as critical as the helium pressure but should be maintained at a constant pressure between 10 and 100 psig.

  • Page 111: Replacing The Valve

    Substitution of components may impair suitability for the Class I, Division 1 Classification. All replacement components should be obtained from Galvanic Applied Sciences to ensure compatibility. 9.6.1 Replacing the Valve The most common cause of failure of a chromatograph valve is particulate contamination in the sample or actuation gas.

  • Page 112: Replacing The Column(S)

    24 hours and is then ready for analysis The failed valve can then be cleaned or rebuilt and kept on hand as a spare for possible future valve replacement. Please contact Galvanic Applied Sciences Inc. if a leaky valve is suspected before attempting to replace a valve.

  • Page 113: Checking The Column Oven

    The temperature is measured with a 100-ohm RTD. Measuring the resistance of the RTD should result in a reading of approximately 100 ohms at ambient temperature. Spare Parts If spare ACCUCHROME parts are required, please contact: Galvanic Applied Sciences, Inc, 7000 Fisher Road SE Calgary, Alberta T2H 0W3 CANADA Phone: (403) 252-8470 Toll free 1-866-252-8470 E-mail: support@galvanic.com...
  • Page 114 SS-2F-LE MICRON INLINE FILTER HOUSING SS-2F-K4-7 7 MICRON INLINE FILTER ELEMENT Revision 4 12/15/2018...

  • Page 115: Section 10 Troubleshooting

    Section 10 Troubleshooting 10.1 Overview Troubleshooting is the determination of the cause of a difficulty in the system. Typically, the operator will perform troubleshooting activities when the system is providing data that the operator believes to be incorrect, such as a dramatically lower signal for all compounds. It is important to recognize that the output from the system represents the condition of the entire analytical system, and the most critical step is to determine the component at fault.

  • Page 116: 10.2 Potential Faults

    10.2 Potential Faults 10.2.1 Baseline Issues Problem Cause Corrective action High Baseline TCD Excitation board Halt the analyzer, open the baseline signal is set too high column oven, and adjust the screw marked ‘Baseline’ on the potentiometer on the electronics board inside the oven until the baseline reads lower.

  • Page 117: Questionable Chromatographic Output

    10.2.2 Questionable Chromatographic Output Problem Cause Corrective action Incorrect readings Peaks have shifted, Check that helium pressure is at 60 integration parameters psig, and / or adjust retention times. incorrect Examine the chromatogram and determine if peaks have shifted or if integration parameters are not correct.

  • Page 118: Instrumental Issues

    10.2.3 Instrumental Issues Problem Cause Corrective action No flow when Cal. Is Solenoid does not Check that there is 24VDC at initiated. energize solenoid. Check that solenoid is wired to connector P5 terminals 1 and 2. If the solenoid still does not energize, replace solenoid.

  • Page 119: Section 11 Theory Of Gas Chromatography

    Section 11 Theory of Gas Chromatography 11.1 What is Gas Chromatography? Gas chromatography is the separation and detection of a gaseous mixture of compounds (solutes) into its individual components. As described below, it can provide: • Qualitative Analysis - what is in the sample •...

  • Page 120: 11.3 Basic Parts Of A Gas Chromatograph

    Flow of Mobile Phase Injector Detector Time = t1 Sample Gas Column Time = t2 Time = t3 Most Least Interaction With Stationary Phase Figure 11-1: Separation of a Gas Sample via Gas Chromatography 11.3 Basic Parts of a Gas Chromatograph A Gas Chromatograph (Figure 11-2) includes the following components: Figure 11-2: Components of a Gas Chromatograph •...

  • Page 121: 11.4 How Are The Components Detected And Quantified

    11.4 How are the Components Detected and Quantified? The purpose of a detector is to monitor the carrier gas as it emerges from the column and to generate a signal in response to variation in its composition due to eluted components. A Thermal Conductivity Detector (TCD) is used in the ACCUCHROME Gas Chromatograph.

  • Page 122: 11.5 The Chromatograph Output: The Chromatogram

    11.5 The Chromatograph Output: The Chromatogram The signal output by the TCD is used to generate a chromatogram, which is a graph of detector response against time. The presence of a component will generate a spike in the TCD’s response, which appears as a ‘peak’ on the chromatogram. The components are identified by the microprocessor according to the length of time it takes them to elute from the column.

  • Page 123: Wiring

    Section 12 Wiring Book The Wiring book for the ACCUCHROME is described in Table 12-1. In addition to the figures presented in this section, the diagrams are provided on the distribution disk for the PC application program. Table 12-1: Wiring Book – ACCUCHROME Gas Chromatograph Wiring Diagram for Connector Figure...
  • Page 124 Figure 12-1: PLGC Power Connections Figure 12-2: Relays Wiring Diagram Revision 4 12/15/2018...
  • Page 125 Figure 12-3: Analog Outputs – Loop Powered Mode Figure 12-4: Analog Outputs – Self Powered Mode Revision 4 12/15/2018...
  • Page 126 Figure 12-5: Isolated RS-485 Port Connection Figure 12-6: Isolated RS-232 Connections Revision 4 12/15/2018...
  • Page 127 Figure 12-7: Analog Inputs – RTD Connections Figure 12-8: Analog Inputs – Pressure Transducer Connections Revision 4 12/15/2018...

  • Page 128: Figure 12-9: Analog Inputs - 4-20- Ma Connections

    Figure 12-9: Analog Inputs – 4-20- mA Connections Figure 12-10: Analog Inputs 4-20 mV TXR Connections Revision 4 12/15/2018...

  • Page 129: Figure 12-11: Oven Rtd And Tcd Connections

    Figure 12-11: Oven RTD and TCD Connections Figure 12-12: Arcnet AC485 Twisted Pair Connection Revision 4 12/15/2018...

  • Page 130: Figure 12-13: Oven Heater Connection

    Figure 12-13: Oven Heater Connection Figure 12-14: GC Valves Connections Revision 4 12/15/2018...

  • Page 131: Figure 12-15: Solenoids 5 To 10 Connections

    Figure 12-15: Solenoids 5 to 10 Connections Figure 12-16: Solenoids 1 to 4 Connections Revision 4 12/15/2018...

  • Page 132: Figure 12-17: Digital Inputs Connections

    Figure 12-17: Digital Inputs Connections Figure 12-18: Cabinet Heater Connection Revision 4 12/15/2018...

  • Page 133: Section 13 Definitions And Formulas

    Section 13 Definitions and Formulas 13.1 Terms Commonly used in the Manual This section provides the definition of a variety of terms that are used to describe the operation of the chromatograph and the calculations that are performed by the system. Baseline: A baseline is that portion of a chromatogram where no detectable sample components emerge from the column.

  • Page 134: 13.2 Calibration Formulas And Analyzer Calculations

    Response Factor: The correction factor used to convert peak area into concentration. Retention Time: The time that elapses between the start of an analysis and the maximum height of a peak. Peak retention time is used to identify individual components in an analysis. Saturated BTU: The heating value of a standard cubic foot of gas saturated with water vapour.
  • Page 135 Compressibility Factor (Z) The Compressibility Factor is calculated by equation 13-2. Z = 1 – (P × Σ [Conc × b 13-2 Where: Z = Compressibility factor = Base pressure (psia) Conc = Normalized concentration of component n = ‘Summation factors’, as defined in GPA Standard 2172-96 Heating Values The Dry BTU, Connected Dry BTU, Saturated BTU and Corrected Saturated BTU are calculated by equations 13-3 through 13-6.
  • Page 136 Specific Gravity (or Relative Density) The Dry Specific Gravity and Saturated Specific Gravity of the gas are calculated using equations 13-7 and 13-8: Dry Specific Gravity Dry SG = (Σ Conc x SG ) / 100 13-7 Where: Dry SG = Dry Specific Gravity of the sample gas Conc = Normalized concentration of component n = Specific Gravity value of component n...

  • Page 137: Section 14 Typical Parameters Of Natural Gas Components

    Section 14 Typical Parameters of Natural Gas Components 14.1 GPA Parameters Table 14-1: Parameters of Natural Gas Components (GPA) GPA 2145-03 14.696 psia 60 F Summation Component Dry BTU Constant S.G. Factor Nitrogen 0.96723 0.00442 Methane 1010 0.55392 0.0116 Carbon Dioxide 1.51960 0.0195 Ethane...

  • Page 138: 14.2 Aga Parameters

    14.2 AGA Parameters Table 14-2: Parameters of Natural Gas Components (AGA) AGA 2145-00 AGA 2145-00 14.696 psia 60 F 14.73 psia 60 F Component Dry BTU Constant S.G. Component Dry BTU Constant S.G. Argon 0.00 1.3793 Argon 0.00 1.3825 Carbon Dioxide 0.00 1.5196 Carbon Dioxide...

  • Page 139: Valco 6 And 10 Port

    Section 15 Valco 6 and 10 Port Valve Technical Information 15.1 Valve Operation Instructions Revision 4 12/15/2018...
  • Page 140 Revision 4 12/15/2018...

  • Page 141: Valve Maintenance Instructions

    15.2 Valve Maintenance Instructions Revision 4 12/15/2018...
  • Page 142 Revision 4 12/15/2018...

  • Page 143: Accuchrome Specifications

    Section 16 ACCUCHROME Specifications PERFORMANCE Accuracy: By ±0.5%/F.S(Range≧50),±1%/F.S(5<Range<50),±2%/F.S(Range≦5%) Component Accuracy: By Heating Value +/- 0.25 Btu/scf per 1000 Btu/scf Repeatability: +/- 0.25 Btu/scf per 1000 Btu/scf Sensitivity: 200 ppm Linearity: +/- 2% F.S. Response time: 4 - 5 minutes ENVIRONMENT Ambient temperature conditions: -20 C to + 60 C (-4 F to 140 F)
  • Page 144 Index 12-Minute Cycle Time Systems, 9 Default Names, 28 Definitions, 119 Digital Inputs, 71 Display, 6, 22 4-Minute Analysis Cycle, 10 Edit Chromatogram Dialog Box, 39 Action List, 63 Editing a Configuration, 55 Actions, 40 Electrical Requirements, 16 Add Action, 63 Electronics Enclosure, 5 AGA Parameters, 124 Environmental Requirements, 12...
  • Page 145 Main Screen – Read Only Mode, 35 Safety Guidelines, 17 Maintaining Flow Control, 97 Safety Symbols, 16 Maintenance, 95 Sample Conditioning, 16 Marker Point, 46 Sample Flow Rate, 16 micro-packed columns, 3 Sample Volume, 16 Modbus Tab, 89 Sampling Considerations, 16 Sampling Point Location, 16 Savitsky Golay Window, 61 Select Mode Dialog Box, 34...

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