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Related Manuals for Galvanic Applied Sciences AccuLase-GPA Series
Summary of Contents for Galvanic Applied Sciences AccuLase-GPA Series
- Page 1 AccuLase-GPA™ Hydrogen Sulfide Analyzer Operation & Maintenance Manual Revision 2 January 20, 2020 Galvanic Applied Sciences Inc. 7000 Fisher Road SE Calgary, Alberta T2H 0W3 Canada Phone: (403) 252 8470 Toll Free: 1 866 252 8470 service@galvanic.com www.galvanic.com...
- Page 2 Purpose This manual describes how to safely operate and maintain the AccuLase-GPA™. Important Read Section 1 before proceeding to use the AccuLase-GPA™. Galvanic Applied Sciences is not responsible for any deviation from this manual. Scope If products and components from other manufacturers are used, these must be recommended or approved by Galvanic Applied Sciences (The ‘Manufacturer’).
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Page 3: Table Of Contents
Table of Contents Section 1: AccuLase-GPA™ .......................... 11 Overview ............................. 11 Principle of Operation ......................... 11 Features of the Analyzer ......................11 System Operating Control ......................12 Installation and Safety ........................ 12 Section 2: AccuLase-GPA™ Components ....................13 2.1 Overview ............................13 2.2 Control Enclosure .......................... - Page 4 4.1 Introduction ............................31 4.2 Connecting to the AccuLase-GPA™ via Ethernet ................31 4.2.1 Local Ethernet Connection ......................31 4.2.2 Remote Ethernet Connection via LAN ..................32 4.3 AccuLase-GPA™ Web GUI Overview ....................32 4.3.1 Status Indicators and Toolbar ....................33 4.3.2 Navigation Pane .........................
- Page 5 4.4.13 Discrete Inputs Page ........................ 48 4.4.13.1 General Options ........................49 4.4.13.2 Trigger Run ..........................49 4.4.13.3 Action ............................ 49 4.4.14 Outputs Page ..........................49 4.4.14.1 Relays ............................ 50 4.4.14.2 Solenoids ..........................50 4.4.14.3 Analog Outputs ........................51 4.4.15 Analog Inputs Page ........................51 4.4.15.1 Excitation ..........................
- Page 6 5.5.1 List of Materials Required ......................72 5.5.2 Preparatory Steps ........................72 5.5.3 Vacuum Pump Disassembly and Maintenance ................73 5.6 Replacing the Membrane and O-ring within the Liquid Membrane Separator ........ 78 5.6.1 List of Materials Required ......................78 5.6.2 Preparatory Steps ........................
- Page 7 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. The Caution symbol with the safety alert symbol indicates a hazardous situation that, if not avoided could result in minor or moderate injury, and/or damage to the analyzer system.
- Page 8 Important Safety Guidelines for the AccuLase-GPA™ Please read the following warnings and cautions carefully before using the AccuLase-GPA™. This equipment must be used as specified by the manufacturer or overall safety will be impaired. Access to this equipment should be limited to authorized, trained personnel ONLY. Observe all warning labels on the analyzer enclosures, as well as on related containers and chemicals.
- Page 9 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 10 inadequate maintenance by Buyer, software or interfaces supplied by Buyer, operation outside the environmental specifications for the instrument, use by unauthorized or untrained personnel or improper site maintenance or preparation. Products that have been altered or repaired by individuals other than Seller personnel •...
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Page 11: Section 1: Acculase-Gpa
Section 1: AccuLase-GPA™ 1.1 Overview The Galvanic Applied Sciences AccuLase-GPA™ uses Tunable Diode Laser Absorption Spectroscopy (TDLAS) to determine the concentration of a target gas species (hydrogen sulfide, H S) in a variety of gaseous process streams. 1.2 Principle of Operation The AccuLase-GPA™... -
Page 12: System Operating Control
1.4 System Operating Control The AccuLase-GPA™ is controlled by a dedicated data acquisition system which provides supervisory control, performs all calculations, and provides the local user interface. This control system also stores the web based GUI that can be accessed via a personal computer and web browser connected by either a local or a remote Ethernet connection. -
Page 13: Section 2: Acculase-Gpa™ Components
Section 2: AccuLase-GPA™ Components 2.1 Overview The AccuLase-GPA™ is an integrated system designed to monitor the concentration of a target gas, hydrogen sulfide, in a gaseous stream or multiple streams using the Tunable Diode Laser Absorption Spectroscopy (TDLAS) method described in Section 1.2. The AccuLase-GPA™ can be divided into three separate areas, as follows: •... -
Page 14: Display Board
The Ethernet ports can be used for local or remote connection via the web-based GUI program. One USB port is used for communication with the Input / Output (IO) board. The other USB ports can be used to download the archive data from the on-board storage. 2.2.2 Display Board The AccuLase-GPA™... -
Page 15: Intrinsically Safe (Is) Barrier (D1 Model Only)
2.2.5 Intrinsically Safe (IS) Barrier (D1 Model Only) The intrinsically safe (IS) barrier is mounted in the top left corner of the control enclosure of AccuLase-GPA™ D1 control enclosure. The intrinsically safe barrier connections are shown in Figure 5. Figure 3: Intrinsically Safe (IS) Barrier The wiring connections for the analyzer’s hand-held keypad pass through the IS barrier. -
Page 16: D2 Layout
2.2.6 D2 Layout Figure 4: Optics / Sample Cell Enclosure Layout (D2) The main components found in the optics / sample cell enclosure include the laser launcher and detector (1), the Herriott sample cell (2), the TDLAS control module and laser source (3), the cell heater (4), and the vacuum pump (5). -
Page 17: Tdlas Control Module And Laser Source
2.3.1 TDLAS Control Module and Laser Source The TDLAS Control Module is an electronics board mounted inside the Optics / Sample Cell enclosure. The laser source is mounted on this electronics board and connected to the sample cell laser launcher optics via a telecommunications grade optical fibre. The TDLAS Control Module with Laser source is shown in Figure 8. -
Page 18: Section 3: Acculase-Gpa™ Local Display User Interface
Section 3: AccuLase-GPA™ Local Display User Interface 3.1 Introduction The front panel of the AccuLase-GPA™ control enclosure includes three LEDs and a color LCD display which provides information about the status of the analyzer. In addition, a handheld keypad can be used to view and/or edit a range of analyzer settings and analytical results. -
Page 19: Front Panel Leds
3.3 Front Panel LEDs There are three colored LEDs above the LCD on the front panel of the AccuLase-GPA™, as shown in Figure Figure 7: Front panel LCD Showing Status LEDs These LEDs are used to indicate specific analyzer status-related information. The function of these three LEDs is indicated in Table 1. - Page 20 Figure 8: AccuLase-GPA™ Handheld Keypad The keypad has 20 keys. Eleven keys are used for data entry (numerals 0-9 and a decimal point). The remaining 9 keys have functions that are described in Table 2. Table 2: Keypad Key Functions Function PANEL PREV Used to navigate to the previous display panel (up) in the local UI.
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Page 21: Home Panel
3.4 Home Panel The Home panel, which can be accessed from any other panel in the analyzer’s local user interface by pressing the HOME key on the keypad, displays several analysis-related parameters. The Home panel is shown in Figure 17. Figure 9: Home Panel The Home panel displays several analysis-related parameters on the top half of the screen. -
Page 22: Alarms Panel
Additionally, at the bottom of the Home panel there are three status indicators / toggles whose functions are described in Table 4. Table 4: Home Panel Status Indicators / Toggles Indicator Function Will indicate either (On) or (Off). If set to (Off), the analyzer’s inputs and outputs are under control of the analyzer control board. -
Page 23: Inputs Panel
Figure 10: Alarms Panel 3.6 Inputs Panel The Inputs panel shows the current status of the AccuLase-GPA™ IO board’s five analog inputs and four digital inputs. See Figure 19. Figure 11: Inputs Panel By default, only two of the analog inputs are configured from the factory. Analog Input 1 is used for the sample cell pressure transducer and is calibrated in units of torr. -
Page 24: Outputs Panel
The status of the four digital inputs is indicated using four circles, one for each digital input. If the circle for a given digital input is grey, that indicates that the digital input is not receiving a signal from the attached device (i.e. -
Page 25: Calibration Panel
3.8 Calibration Panel The Calibration panel is used for calibrating the AccuLase-GPA™ for both zero and span. It is shown in Figure 21. Figure 13: Calibration Panel The first four fields on the Calibration panel indicate the analyzer’s calibration parameters. These parameters are described in Table 5. -
Page 26: Laser Panel
AccuLase-GPA Calibration y = 1.0863x - 0.4128 Analyzer Reading (ppm) Figure 14: AccuLase-GPA™ Calibration Curve The calibration curve in Figure 22 is based on the calibration parameters shown in Figure 21. As can be seen from the equation displayed on the calibration curve, the slope and intercept are the same as those shown in the analyzer calibration parameters. -
Page 27: Config Panel
Figure 15: Laser Panel The parameters show the amount of laser light being received by the laser detector. If the concentration of the target gas in the sample cell is low, the light absorption by the target gas will also be low, and thus the indicated Absorption Signal will also be low. -
Page 28: Net Panel
If the calculated concentration exceeds this set point, the High Alarm will be triggered along with any associated hardware outputs configured in the AccuLase-GPA™ web GUI. To edit the alarm setpoint, use the FIELD NEXT / FIELD High Alarm Limit PREV button to select the Edit button for the stream of interest, then press ENTER. -
Page 29: Port Configuration
Figure 17: Network Panel The Network panel is divided into two sections – the Port Configuration on the left, and the Network Status on the right. 3.10.1 Port Configuration The configuration of the two Ethernet ports on the AccuLase-GPA™ controller board is set in this portion of the Network panel. -
Page 30: Network Status
Figure 18: Network Panel (Static IP Address Configuration) Each field in the Static IP configuration panel must be filled in correctly to ensure that the AccuLase-GPA™ is able to be accessed remotely via the plant LAN. Obtain the correct settings to be used in each of the four fields from the plant IT department. -
Page 31: Section 4: Acculase-Gpa™ Web-Based Gui
The GUI is accessible through any modern internet browser software, though Galvanic Applied Sciences recommends the use of either Google Chrome or Mozilla Firefox. As the GUI is web-based, it is operating system agnostic, and thus can be accessed by computers running Microsoft Windows, MacOS, or many varieties of Linux. -
Page 32: Remote Ethernet Connection Via Lan
ACCULASE-GPA™ D2 UNLESS THE AREA IS KNOWN TO BE NON-HAZARDOUS! 4.2.2 Remote Ethernet Connection via LAN The AccuLase-GPA™ can also be connected to the facility’s local area network (LAN), which allows access to the web based GUI from a remote location connected to the same LAN. To connect to the plant LAN, one end of a straight through (patch) cable should be connected to one of the top two Ethernet ports on the analyzer’s controller board. -
Page 33: Status Indicators And Toolbar
Figure 21: AccuLase-GPA™ Web GUI Home Screen The AccuLase-GPA™ web GUI is divided into three sections – the Toolbars on the top of the panel, the Navigation pane on the left of the screen, and the information panel on the right of the screen. 4.3.1 Status Indicators and Toolbar The two rows at the top of the screen include a toolbar with a series of buttons used to operate and configure the AccuLase-GPA™, as well as some status indicators. -
Page 34: Navigation Pane
Pressing this button will allow the user to upgrade the AccuLase-GPA™ firmware. Upgrade Firmware This should only be done under the guidance of Galvanic Applied Sciences Inc. This button is greyed out in Read Only mode. 4.3.2 Navigation Pane The Navigation pane is located on the left side of the screen. - Page 35 Figure 24: Navigation Pane It is divided into three access levels – Operator, Technician, and Factory. The Operator menu is discussed in Section 4.4, the Technician menu in Section 4.5, and the Factory menu in section 4.6. If the current access mode is Read Only, only the Operator access level will be displayed, and no changes can be made to the configuration.
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Page 36: Operator Menu
Synchronize Time button on the toolbar. The analyzer’s unique factory serial number. This serial number should be Serial Number provided to Galvanic Applied Sciences as part of any service-related correspondence. The analyzer’s unique customer-provided tag number Location... -
Page 37: Alarms Page
result was calculated) will be displayed. The stream result fields are color coded. If the field background is yellow, that indicates the stream is currently active. If the field background is blue, that indicates that stream will be the next to be analyzed after the current analysis is complete. On the right side of the Home page, the Cell Temperature (RTD PID), in degrees Celsius, and the Cell Pressure, in torr, are displayed. -
Page 38: Analog Inputs
Figure 27: Hardware Status Page The Hardware Status Page is divided into several sections. 4.4.3.1 Analog Inputs. The Analog Inputs section shows the current calibrated inputs to the analyzer’s five analog inputs. By default, only the first (Cell Pressure) and fifth (PID RTD) are calibrated from the factory; the other three analog input readings can be ignored. -
Page 39: Relays
The indicator for each solenoid will be grey if the solenoid is off, and green if the solenoid is energized. 4.4.3.5 Relays The Relays section shows the current status of the analyzer’s four solid state relays. Solid state relays can be used for status enunciation if connected to a remote device such as a DCS. If the indicator for a given relay is grey, that indicates that the relay is in the inactive state. -
Page 40: Bypass
Table 10: Analysis Parameters Parameter Explanation Changes the measurement unit displayed for the concentration in the web GUI Unit and on the analyzer display. NOTICE: Display only. No unit conversion is done. Default is ppm. Changes the amount of time, in seconds, that the analyzer will purge the sample Purge Time cell after a stream switch before starting a new analysis. -
Page 41: Run Setup Page
on the Calibration page are read-only. Additionally, calibration runs cannot be initiated from the Calibration page – they must be initiated from the Calibration panel on the analyzer’s local display. 4.4.6 Run Setup Page The Run Setup page is used to configure the various analysis runs that the AccuLase-GPA™ can carry out. -
Page 42: Switching
3. Span Calibration runs, which are used to establish the raw span reading in the analyzer’s calibration parameters 4. Reference runs, which are used to verify the validity of the analyzer’s calibration parameters. Directly underneath the Run Name field is a button marked Run Request. This button is used to manually place a single instance of the run being edited into the AccuLase-GPA™... -
Page 43: Sequencer Page
4.4.7 Sequencer Page The Sequencer page is used to set up the AccuLase-GPA™ automatic sequence of analyses. It is shown in Figure 39. The automatic sequence is a list of runs that the analyzer will perform sequentially. When the defined automatic sequence is complete, the analyzer will return to the beginning of the sequence and carry it out again. -
Page 44: Alarm Setup Page
Figure 32: Scheduler Page Up to 8 different timers can be configured. For each timer, a Start Date and a Start Time must be configured. The date and time will be referenced against the AccuLase-GPA™ real time clock, so it is very important that the real time clock is correct. If it is not, be sure to set the clock correctly by pressing the Synchronize Time button on the toolbar before setting timers. -
Page 45: Hardware Alarms
Figure 33: Alarms Setup Page 4.4.9.1 Hardware Alarms There are four hardware fault related alarms that can be enabled and configured on the Alarms Setup Page. These alarms are described in Table 12. Table 12: Alarms Setup Page Hardware Alarms Alarm Explanation IO Board... -
Page 46: Modbus Page
For each of these alarms, they can be enabled by placing a checkmark in the Enable box. Desired Relay Actions and Solenoid Actions can be associated with each alarm by placing checkmarks in the checkboxes associated with the desired hardware actions for each alarm. The alarms can also be set to be latched by placing a checkmark in the Latch checkbox for each alarm. -
Page 47: Events Page
Figure 35: Archive Page The AccuLase-GPA™ logs the current calculated concentration, the cell temperature, and the cell pressure every 30 seconds. The data stored in the archive can be downloaded by clicking on the refresh button ( ) at the bottom left of the Archive page. If there are no records stored in the analyzer archive, this button will read No records to display. -
Page 48: Discrete Inputs Page
Figure 36: Events Page To display the analyzer’s Event Log, simply press the refresh button ( ) at the bottom left of the Events page. A change of one type or another is what causes a record to be placed into the event log. -
Page 49: General Options
Figure 37: Discrete Inputs Page There are a total of four discrete inputs available for configuration. The hardware for the discrete inputs is found on the AccuLase-GPA™ IO board. Each discrete input has the same set of options that can be configured. 4.4.13.1 General Options Each discrete input can be given an Input Name that is used to refer to the discrete input elsewhere in the web GUI as well as on the analyzer’s local display screen. -
Page 50: Relays
Figure 38: Outputs Page The Outputs page is divided into three sections, one for each of the three types of hardware outputs available – relays, solenoids, and Analog Outputs. 4.4.14.1 Relays Each of the four available relays has three parameters associated with it. The relay parameters are described in Table 14. -
Page 51: Analog Outputs
Provides a description of the solenoid’s function, such as, Zero Calibration, Span Description Calibration, Stream 1, etc. The description can be edited by left clicking on the description, typing in the new description, and pressing Enter. If this option is chosen, the solenoid will be energized (gas connected to the NC port will flow) when inactive, and de-energized (gas connected to the NO port Reverse Logic will flow) when active. -
Page 52: Excitation
Analog Inputs 1 and 5 are reserved for inputs for the analyzer’s cell pressure transducer and cell temperature RTD respectively. These inputs should NOT be modified except under the express instruction of Galvanic Applied Sciences. Unauthorized modification to these inputs may result in the AccuLase-GPA™ being unable to function normally. -
Page 53: Analog Input Alarms
The number of readings taken from the analog input and averaged together Num. of Averages before updating the displayed value. The number of averages can be chosen from the drop-down menu. The default value is 4. The instrument amplifier gain applied to the signal input to the analog input. The IAMP Gain gain can be chosen from the drop-down menu. -
Page 54: Manual Page
This page presents information about the hardware and firmware of the AccuLase-GPA™, including version numbers. This information is useful for troubleshooting in the event of analyzer problems, and should be provided to the Service Department of Galvanic Applied Sciences Inc. when asking for assistance. -
Page 55: Analog Output Calibration And Testing
Before any testing or calibration can be performed on the Output Test page, the IO board must be placed in Direct Board Control mode by selecting the Direct Board Control Enable option at the top left of the screen. In Direct Board Control mode, all hardware outputs on the IO board are under manual control, and cannot be controlled by the analyzer’s computer. -
Page 56: Discrete Output Testing
The Engineering Calibration section is used to associate concentration values with the milliamp signal output. The mA Zero field is used to enter the milliamp value that is output when the analog output is outputting a zero signal; the default value for this field is 4mA. The mA Span field is used to enter the milliamp value that is output when the analog output is outputting a full-scale signal;... -
Page 57: Factory Menu
Each discrete output has a colored circle and a checkbox associated with it. The colored circle shows the current state of the discrete output. Green indicates that the discrete output is active and grey indicates that the discrete output is not active. The checkbox associated with each discrete output can be used to turn the output on or off. - Page 58 IO Board. Making changes to any parameters on the Factory Setup page has the potential to render the analyzer inoperable. No changes should be made on this page without the express guidance of the Galvanic Applied Sciences Service Department.
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Page 59: Section 5: Acculase-Gpa™ Maintenance And Repair
Section 5: AccuLase-GPA™ Maintenance and Repair 5.1 Overview While the AccuLase-GPA™ has been designed to be a low maintenance analyzer, there will still be need to perform the occasional maintenance procedure throughout its lifetime. This section of the manual is intended to provide detailed instructions on performing some of the more common maintenance procedures which may be required. - Page 60 Figure 45: Location of Set Screws in Enclosure End Caps 3. Remove the enclosure end caps by rotating them counter-clockwise. To avoid binding between the threads, gently lift the caps upwards while rotating. Make note of which side each end cap came from in order to prevent any issues during reassembly later. 4.
- Page 61 Figure 47: Wiring Connections 7. Using the small flathead screwdriver, loosen the screws holding the wiring connectors in place. 8. Disconnect the wiring connectors from the board by gently pulling on them. 9. Carefully slide the component rail out of the enclosure towards the side with the vacuum pump, see Figure 56.
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Page 62: Removing The Herriott Cell From The Acculase-Gpa
Figure 49: Fittings with Connections to the Enclosure 11. Disconnect the fittings using the appropriate size wrenches. 12. Carefully slide the component rail in the opposite direction until it is completely extracted from the enclosure, see Figure 58. Use caution to avoid any tubing or wiring that may be obstructing the slide path. -
Page 63: Preparatory Steps
• Phillips No. 1 screwdriver • Phillips No. 2 Screwdriver (D2 version only) • Large flathead screwdriver (D2 version only) 5.3.2 Preparatory Steps 1. Purge the analyzer with an inert gas, such as nitrogen. 2. Disconnect the analyzer from the source of electrical power. 3. - Page 64 Figure 53: Location of the Detector 7. Trace the wires from the detector to the main laser board shown in Figure 62. Figure 54: Location of the Main Laser Board 8. Gently disconnect to connector to the detector from the main laser board. 9.
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Page 65: Removing The Herriott Cell From The Acculase-Gpa™ D2
Figure 56: Location of Bolts Securing Herriott Cell 13. Remove the bolts using an appropriate size wrench. The Herriot cell should now be free of any attachments to the component rail. 14. Lift the Herriott cell off of the component rail and transfer it to a clean workspace to complete any further maintenance. - Page 66 Figure 58: Locating of Fittings Connected to the Herriott Cell 3. Using the appropriate size wrenches, undo the fittings. 4. Locate the screws holding the main laser board cover plate in place. See Figure 67. Figure 59: Location of Screws for the Main Board Cover Plate 5.
- Page 67 Figure 60: Location of the Detector 9. Trace the wires from the detector to the main laser board. 10. Gently disconnect to connector to the detector from the main laser board. 11. Locate the fibre optic connector shown in Figure 69. Figure 61: Location of the Fibre Optic Connector 12.
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Page 68: Accessing And Cleaning The Herriot Cell Mirrors
15. Support the Herriott cell in order to prevent it from falling out. 16. Remove the bolts by using the appropriate size hex key. The Herriot cell should now be free of any attachments to the rest of the analyzer. 17. - Page 69 Figure 63: L-bracket Mount 2. Ensure the mounting side of the L-bracket mount is free of any obstructions, such as screws or bolts. See Figure 72. Figure 64: L-bracket Mount Free of Obstruction 3. With the Herriott cell oriented vertically, line up the holes on the Herriott cell bracket with the mounting holes on the L-bracket mount.
- Page 70 Figure 65: Herriott Cell Secured to L-bracket Mount 5. Make note of the orientation of the Herriott cell cover in relation to the rest of the Herriott cell. This is important to ensure proper reassembly after maintenance is complete. 6. Remove all eight screws holding the Herriott cell cover in place. Figure 74 shows one of the eight screws which has been partially removed.
- Page 71 Figure 67: Location of Herriott Cell Mirrors 8. Inspect the mirrors for cleanliness. 9. If available, use compressed air to blow away any loose debris or particles which may have accumulated on the surface of the mirrors. 10. Apply a small amount of methanol to a lint-free non-scratch wipe and gently wipe the mirrors. Repeat this step as much as necessary in order to remove any dirt, smudges, or clouding from the surface or the mirrors.
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Page 72: Maintaining The Vacuum Pump Diaphragm, Plates And Seals
Figure 68: Herriott Cell O-ring Sitting in its Groove 12. Slide the Herriott cell cover back over the Herriott cell in the same orientation in which it was removed. 13. Perform steps 1-6 of this section in the reverse order to return the Herriott cell to its starting state. -
Page 73: Vacuum Pump Disassembly And Maintenance
Figure 69: Fully Assembled Vacuum Pump 5.5.3 Vacuum Pump Disassembly and Maintenance 1. Prior to disassembly, make note of the orientation and position of the individual parts as they are removed. This will ensure they are reassembled correctly after maintenance is complete. 2. - Page 74 Figure 71: Vacuum Pump with Pump Head Unit Removed 4. Rotate the counter-weight located within the side compartment by hand until the connecting rod moves the diaphragm into its highest position. At this point you may be able to see if the existing diaphragm is worn or damaged.
- Page 75 Figure 73: Vacuum Pump with Diaphragm and Spacers Removed 6. Inspect the removed diaphragm to assess the amount of wear and determine whether a replacement is required. The example shown in Figure 82 is a diaphragm that is torn and requires replacement.
- Page 76 Figure 75: Pump Housing with Mild Amount of Dirt 8. Remove the centre screw from the pump head unit. See Figure 84. Figure 76: Pump Head Unit 9. Separate the two plates which make up the pump head unit. See Figure 85.
- Page 77 Figure 77: Separated Pump Head Plates 10. Remove the two seals contained between the two pump head plates. See Figure 86. Figure 78: Separated Pump Head Plates with Seals Removed 11. Inspect the pump head plates and seals to assess the amount of wear and determine whether replacement is required.
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Page 78: Replacing The Membrane And O-Ring Within The Liquid Membrane Separator
12. Once all maintenance and cleaning has been completed, reassemble the vacuum pump by reinstalling each component in the reverse order it was removed. Keep in mind the orientation of the parts need to be the same as they were prior to disassembly. Refer back to Figure 77 to see an image of a fully assembled vacuum pump. - Page 79 Figure 79: Unscrewing Liquid Membrane Separator Cover Figure 80: Unscrewing Liquid Membrane Separator Cover with Assistance 2. Once removed, place the cover with the membrane side up on the surface of a clean workspace. See Figure 89.
- Page 80 Figure 81: Removed Liquid Membrane Separator Cover 3. Lift and remove the O-ring. Use a small flathead screwdriver to assist if necessary, but be extra cautious to avoid scratching or scoring any of the metal surfaces. See Figure 90. Figure 82: Liquid Membrane Separator Cover with O-ring Removed 4.
- Page 81 Figure 83: Liquid Membrane Separator Cover with Exposed Membrane Support 5. Place the new membrane over the centre of the membrane support. 6. Place the new O-ring over the new membrane and centre it with the groove. See Figure 92. Figure 84: Liquid Membrane Separator Cover with Centred Membrane and O-ring 7.
- Page 82 Figure 85: Liquid Membrane Separator Cover with Membrane Side Down 9. Press down on the cover and apply firm pressure to ensure the O-ring is seated properly in the groove. 10. Screw the cover back into the body of the separator until it reaches a mechanical stop. Do not use a wrench or any other tool at this point as this may overtighten and damage the separator.
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Page 83: Section 6: Acculase-Gpa™ Troubleshooting
Check the USB cable connection between the The IO Board is not IO Board controller board and the IO board. communicating with Communication • Contact Galvanic Applied Sciences Customer the Controller. Support. The Laser Driver Board • Contact Galvanic Applied Sciences Customer Laser Communication is not communicating Support. - Page 84 The cell pressure is too • Possible blockage of the gas flow to the inlet AI1 Low Limit Alarm low. of the analyzer. • The pump has failed. The cell pressure is too AI1 High Limit Alarm • There is too much backpressure at the high.
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