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Emerson Rosemount 470XA Manual

Emerson Rosemount 470XA Manual

Gas chromatograph
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Manual
MS-00809-0100-0470, Rev AA
June 2023
Rosemount
™
470XA Gas Chromatograph

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Summary of Contents for Emerson Rosemount 470XA

  • Page 1 Manual MS-00809-0100-0470, Rev AA June 2023 Rosemount ™ 470XA Gas Chromatograph...
  • Page 2 Notice EMERSON (“SELLER”) SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS IN THIS MANUAL OR OMISSIONS FROM THIS MANUAL. SELLER MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THIS MANUAL AND, IN NO EVENT, SHALL SELLER BE LIABLE FOR ANY SPECIAL OR CONSEQUENTIAL DAMAGES INCLUDING, BUT NOT LIMITED TO, LOSS OF PRODUCTION, LOSS OF PROFITS, ETC.
  • Page 3 Safety messages Observe all environmental and personal safety messages described in this document, warning labels on the device, and your company's operational safety requirements.  WARNING Safety compliance The seller does not accept any responsibility for installations of this device or any attached equipment in which the installation or operation thereof has been performed in a manner that is negligent and/or non-compliant with applicable safety requirements.
  • Page 4 This is true for all systems used within the facility. NOTICE The analyzer electronics and oven assembly, when housed inside a purged enclosure, meet the certifications and classifications identified in the Specifications section of the Product Data Sheet, which is located on the Emerson website: emerson.com.
  • Page 5 Waste disposal Do not dispose of measuring tools into household waste. Only for EC countries: In accordance with European Directive 2012/19/EU for Waste Electrical and Electronic Equipment and its implementation into national right, measuring tools that are no longer usable must be collected separately and disposed of in an environmentally correct manner.

  • Page 7: Table Of Contents

    3.15 Starting up and configuring the gas chromatograph (GC)..........56 Chapter 4  Using the Rosemount 470XA....................65 4.1 Connect a local computer to the Rosemount 470XA............65 4.2 Interacting with the local operator interface (LOI)............... 67 4.3 Local operator interface (LOI) screen descriptions...............70 4.4 Common local operator interface (LOI) tasks................84 4.5 Advanced configuration and operation topics..............
  • Page 8 8.2 GC won't power up........................127 8.3 Un-normalized total error...................... 127 8.4 Replace the central processing unit (CPU)................129 8.5 Recover the central processing unit (CPU)................131 Chapter 9  Spare parts..........................135 ® Appendix A  Pre-defined Modbus map files..................137 Appendix B  China RoHS table........................139 Emerson.com...

  • Page 9: About Rosemount 470Xa Gas Chromatographs

    1.1  Description The Rosemount 470XA Gas Chromatograph (GC) is part of the XA series of Emerson gas chromatographs. Designed to simplify natural gas measurement analysis, the Rosemount 470XA provides greater ease of use and increased measurement performance for your C6+ BTU/CV analysis.
  • Page 10 Streams Up to 3 sample streams and 1 calibration stream Vibration Meets ASTM-4169 specifications Custom light process applications available upon request. For additional approvals and certifications information, see Emerson.com. Table 1-4: Standard communications Specification Description Ethernet Two available connections: one RJ-45 plug-in port and one 4-wire termination.
  • Page 11 Manual About Rosemount 470XA Gas Chromatographs MS-00809-0100-0470 June 2023 (continued) Table 1-4: Standard communications Specification Description Serial ports Two termination blocks, configurable as RS-232 or RS-485. Table 1-5: Archived data storage capabilities Type Maximum number of records Remarks Analysis results 86464...
  • Page 12 Measure vent: Continuous flow of less than 20 cc/min of carrier gas and 20 cc of sample gas per analysis cycle. • Sample bypass: Continuous flow of 150 to 200 cc/min of sample gas. Product certifications For product certifications, see the Rosemount 470XA Gas Chromatograph Quick Start Guide. Emerson.com...

  • Page 13: Chapter 2 Equipment Overview

    Additionally supplied certified parts Canadian Standards Association M32 to ¾-in. adapter and a ¾-in. sealing plug (CSA) ATEX/IECEx M32 plug Figure 2-1: Front view A. Upper housing (dome) B. Lower housing C. Flow panel D. Local operator interface (LOI) Rosemount 470XA...
  • Page 14 Equipment overview Manual June 2023 MS-00809-0100-0470 Figure 2-2: Left side view A. Locking bolt B. Cable entry C. Ground lug Emerson.com...
  • Page 15 Manual Equipment overview MS-00809-0100-0470 June 2023 Figure 2-3: Right side view A. Upper cable entry B. Port hole C. Lower cable entry Figure 2-4: Rear view A. Mounting bolts Rosemount 470XA...
  • Page 16 Equipment overview Manual June 2023 MS-00809-0100-0470 Figure 2-5: Local operator interface (LOI) A. Exit/cancel B. Alphanumerical keypad C. Enter D. Full color screen: 480 x 272 pixels E. Up F. Right G. Select/edit H. Left I. Down Emerson.com...

  • Page 17: Interior

    I. RJ45: Plug-in Ethernet port J. TB5: Wired Ethernet port K. TB9: Communication 2 port L. TB3: Digital output M. TB4: Communication 1 port N. TB1: Digital input The LED light is always on for illumination purposes only. Rosemount 470XA...
  • Page 18 Detects and measures the components of the sample gas after the Detector components are separated by the columns. A single TCD has two thermistors that respond to the difference in thermal conductivity between the carrier gas and the separated components. Emerson.com...

  • Page 19: Chapter 3 Installation

    Failure to observe this warning may cause serious injury to personnel. Observe all proper lifting methods as defined by your site operating procedures. The device weighs 50 lb (23 kg) without the sample system. Carefully open and remove the device from the packing crate. Rosemount 470XA...
  • Page 20 Installation Manual June 2023 MS-00809-0100-0470 Figure 3-1: Rosemount 470XA A. Not a lift point NOTICE Equipment damage Lifting the device by the flow panel may cause damage to the equipment. 3.2.2  Inspect and verify received equipment Check the equipment against the packing slip to see if the shipment is complete.
  • Page 21 Manual Installation MS-00809-0100-0470 June 2023 Procedure 1. File a claim with the carrier. 2. Take photos of the damaged area(s). 3. Contact your local Emerson sales representative. Rosemount 470XA...

  • Page 22: Mounting The Gas Chromatograph (Gc)

    Installation Manual June 2023 MS-00809-0100-0470 3.3  Mounting the gas chromatograph (GC) You can install the Rosemount 470XA using one of the following options: • Wall mount • Pole mount NOTICE Remove the caps from the atmospheric vent before mounting the GC.
  • Page 23 Manual Installation MS-00809-0100-0470 June 2023 3.3.1  Dimensions Figure 3-2: Rosemount 470XA dimensions Dimensions are in millimeters with inches in brackets. Rosemount 470XA...
  • Page 24 Installation Manual June 2023 MS-00809-0100-0470 Figure 3-3: Rosemount 470XA dimensions collapsed Dimensions are in millimeters with inches in brackets. Emerson.com...
  • Page 25 Figure 3-4: Pole and floor stand mounting dimensions Dimensions are in millimeters with inches in brackets.. Mount the gas chromatograph (GC) to a pole Procedure 1. Anchor the pole mount base to the foundation with a 4½-in. or ¾-in. cement anchor. Rosemount 470XA...
  • Page 26 June 2023 MS-00809-0100-0470 2. Slide the U-bolt plastic inserts onto the pole and place the lower clamp approximately 40 in. (1 m) from the ground and the upper clamp 10¾-in. (275.6 mm) above the lower clamp. a. U-bolt plastic inserts Emerson.com...
  • Page 27 4. Attach the mounting bracket to the pole by matching the bracket’s mounting holes to the prongs of the pipe clamps. 5. Tighten the nuts onto the prongs. The mounting bracket should be firmly attached to the pole. Rosemount 470XA...
  • Page 28 B. Four M8 x 1.25 x 18 mounting bolts with washers NOTICE You will also need four ⅜-in. (10 mm) threaded wall anchors that are capable of supporting at least 50 lb (23 kg). Wall anchors are not included in the mounting kit. Emerson.com...
  • Page 29 Manual Installation MS-00809-0100-0470 June 2023 Figure 3-6: Wall mounting dimensions Dimensions are in millimeters with inches in brackets. Mount the bracket to a wall Prerequisites The wall must be able to hold approximately 50 lb (23 kg). Rosemount 470XA...

  • Page 30: Mounting The Sample Conditioning System

    Secure the gas chromatograph (GC) to the mounting bracket 3.4  Mounting the sample conditioning system There are several sample conditioning systems (SCS) available for the Rosemount 470XA Gas Chromatograph (GC). For multiple stream applications, several plate-mounted options are available that can be mounted to a pole or wall.
  • Page 31 NOTICE Mount the SCS to the GC before mounting the GC to a wall or pole. Figure 3-7: Sample conditioning system Prerequisites Make sure the mounting bracket is mounted to the wall or pole before beginning this procedure. Rosemount 470XA...
  • Page 32 GC. Figure 3-8: Securing SCS to GC Leave about .3 in. (7.8 mm) between the SCS and each washer. Figure 3-9: Mounting bolt dimensions Dimensions are in millimeters with inches in brackets. A. SCS Emerson.com...
  • Page 33 Manual Installation MS-00809-0100-0470 June 2023 2. Mount the GC to the bracket, so that the SCS is between the back of the GC and the bracket. Figure 3-10: SCS mounted to the GC and bracket Rosemount 470XA...
  • Page 34 Installation Manual June 2023 MS-00809-0100-0470 Figure 3-11: SCS mounted to the side of the GC Emerson.com...
  • Page 35 Manual Installation MS-00809-0100-0470 June 2023 Figure 3-12: SCS mounted to the bottom of the GC Rosemount 470XA...

  • Page 36: Secure The Gas Chromatograph (Gc) To The Mounting Bracket

    Tighten these two bolts by hand so that they secure the GC in place. 4. One at a time, remove the top bolts, put on the washers, and screw the bolts into the back of the GC and hand tighten. Emerson.com...

  • Page 37: Connect Tubing

    Table 3-1: Carrier gas specifications Carrier gas Helium or hydrogen Purity 99.995% (zero-grade) Moisture content Less than 10 ppm Hydrocarbon content Less than 0.5 ppm Carrier supply pressure 90 psig (6.2 barg) for helium 30 psig (2.1 barg) for hydrogen Rosemount 470XA...

  • Page 38: Connect To Actuation Gas

    The analytical valves require actuation gas to operate. When helium is used as a carrier gas, the default configuration is to also use helium as the actuation gas. Table 3-2: Actuation gas specifications Moisture content Less than 10 ppm Particulate Less than 2 microns Supply pressure 90 psig (6.2 barg) Emerson.com...

  • Page 39: Connect To The Calibration Gas

    Connect to the calibration gas The gas chromatograph (GC) requires a high quality, certified calibration gas to ensure accurate analysis. Although the Rosemount 470XA is typically set for an automatic daily calibration run in custody transfer applications, you can use Rosemount MON2020 to configure calibrations for any time frequency or set it to manual calibration only.

  • Page 40: Connect To The Sample Gas

    The basic principles of sample handling are as follows: • Take a representative vapor sample. • Control the pressure and temperature without causing components to condense. • Remove particulate and liquid contaminates. • Transport the sample to the GC while maintaining the composition. Emerson.com...
  • Page 41 Regulate pressure immediately after the probe or combine it with the probe (a regulator probe), because any extended lengths of sample line before the pressure regulator add significant lag time, which is the time taken for the sample entering the probe to reach the analyzer oven. Rosemount 470XA...

  • Page 42: Electrical Connections

    The cable entries are M32-threaded connections. If your gas chromatograph (GC) is CSA- certified, then Emerson will ship a certified M32-to-¾-inch conduit adapter and ¾-inch certified plugs with your GC. If your GC is ATEX/IECeX-certified, then Emerson will ship M32-certified plugs with your GC.
  • Page 43 To enable servicing in a potentially flammable or explosive atmosphere, install a customer-provided electrical power cut-off on the GC power connection outside of the hazardous area. 3.11.1  Terminal wiring Table 3-4: Terminal boards Terminal block number Connects to Image Discrete input Analog input Discrete output COM1 port (RS-232) Rosemount 470XA...
  • Page 44 Installation Manual June 2023 MS-00809-0100-0470 (continued) Table 3-4: Terminal boards Terminal block number Connects to Image Ethernet 2 Power COM2 port (RS-232) TB10 Analog outputs (2) Emerson.com...

  • Page 45: Connecting To Ethernet Ports

    MS-00809-0100-0470 June 2023 3.12  Connecting to Ethernet ports The Rosemount 470XA has two Ethernet ports that can be configured with unique Internet protocol (IP) addresses, subnet masks, and gateway addresses. Figure 3-14: Ethernet ports on the backplane A. Ethernet 2 •...
  • Page 46 The second Ethernet port is intended to be connected to an Ethernet-enabled supervisory network such as a flow computer, Supervisory Control and Data Acquisition (SCADA) system, or Distributed Control System (DCS). You can also use this port to permanently connect to a maintenance network with Rosemount MON2020. Emerson.com...
  • Page 47 LAN. It should show the status as Connected. The PC is now capable of connecting to the GC. If the status is Disconnected, the PC may not be configured to accept IP addresses. Continue to Step 4. Rosemount 470XA...
  • Page 48 Click Properties. The Internet Protocol Version 4 (TCP/IP) Properties dialog opens. f) To configure the PC to accept IP addresses issued from the GC, select the Obtain an IP address automatically and Obtain DNS server address automatically radio buttons. Emerson.com...
  • Page 49 In Rosemount MON2020, go to Chromatograph → Connect. d) On the Connect to GC screen, click the Ethernet 1 button next to the appropriate entry for direct DHCP connection. Postrequisites NOTICE If you power cycle the GC, you will lose connectivity. Rosemount 470XA...

  • Page 50: Connecting To External Devices

    You can configure the discrete digital input to trigger alarms, change the stream sequence, or perform other functions. The input is optically isolated and can accept either a contact closure such as a pressure switch or a DC voltage signal between 5 and 30 Vdc at 1 Amp. Emerson.com...
  • Page 51 June 2023 Figure 3-17: Wiring for a digital input connected to a contact closure device A. Rosemount 470XA digital input B. External device contact closure Figure 3-18: Wiring for a digital input connected to a voltage output device such as a flow computer A.
  • Page 52 H S analyzer. The analog input is optically isolated and requires external loop power. Figure 3-20: Analog input wiring with an external power supply and a loop-powered transmitter A. Analog input B. Transmitter C. Power supply D. Ground Emerson.com...
  • Page 53 3.13.4  Analog outputs The Rosemount 470XA has two analog outputs. Each analog output can be used to transmit a gas chromatograph (GC) variable, such as an energy value or a component concentration, as a 4 to 20 mA signal. The outputs are self-powered and require a loop resistance of less than 500 ohms.

  • Page 54: Connecting To Power

    Provide the gas chromatograph (GC) with a 5-amp circuit breaker for protection. • The Rosemount 470XA requires at least 21 Vdc at the terminals on the backplane to operate correctly. When wiring for DC power connections, account for the voltage drop due to the cable's resistance.
  • Page 55 • The equipment-grounding conductors used between the gas chromatograph (GC) and the copper-clad steel ground rod must be sized according to your local regulations. Rosemount 470XA...

  • Page 56: Starting Up And Configuring The Gas Chromatograph (Gc)

    If using helium as carrier gas, increase the pressure to 90 psig (6.2 barg). • If using hydrogen as carrier gas, increase the pressure to 60 psig (4.1 barg). 8. Leak check the lines from the carrier gas bottle to the GC. Emerson.com...
  • Page 57 The local operator interface (LOI) Bootup screen displays. The bootup process takes less than three minutes. When the Home screen displays, bootup is complete. 2. Wait fifteen minutes. A red alarm icon should be visible in the lower left corner of the Home screen. Rosemount 470XA...
  • Page 58 Continue to press 2 as necessary. 6. Press Exit to return to the Home screen. 3.15.4  Run the Startup Assistant Procedure 1. Press Enter to go to the Main Menu. 2. Press Right to move to the Tools menu. Emerson.com...
  • Page 59 The number of bits used for communications and to indicate the end of a message. The typical setting for ASCII mode communications is 7. The typical setting for RTU mode communications is 8. Typically, Stop bit is set to 1. Rosemount 470XA...
  • Page 60 The selection between RS-232 and RS-485 physical layer communication protocol. NOTICE The Rosemount 470XA does not have a setting for ASCII or RTU mode. The GC automatically detects the mode during its initial communications with the host device and automatically selects the correct mode.
  • Page 61 ISO Pressure Display (Only if ISO or GPA & ISO was selected as Calculation Method). Options are: • BarG • kPaG g) Primary and Secondary Temperature (Only if ISO or GPA & ISO was selected as calculation method. Options are: • 0C/0C • 0C/15C • 0C/20C • 15C/0C • 15C/15C Rosemount 470XA...
  • Page 62 Once done, press Enter to continue. Auto: Check the box to automatically run at designated time. If the box is unchecked, you need to perform a manual calibration or validation. By default, the box is checked for calibration and unchecked for validation. Emerson.com...
  • Page 63 The GC analyzes the calibration gas and repeat the analysis until the nitrogen value repeats within the uncertainty value entered. If after five runs, the nitrogen values are within specified limits, the GC Startup moves automatically to the next setup screen. 20. Run calibration sequence. Rosemount 470XA...
  • Page 64 The GC runs the number of calibration cycles as entered during configure stream usage. If alarms are generated, the Startup Assistant halts until the alarms are cleared. If no alarms sound, the setup of the Rosemount 470XA is complete. Emerson.com...

  • Page 65: Using The Rosemount 470Xa

    Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 4  Using the Rosemount 470XA You can perform many routine maintenance functions directly from the local operator interface (LOI). In most cases, you can install and configure the gas chromatograph (GC) and place it on the line without using a computer.
  • Page 66 Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 Procedure 1. Locate the switch at SW1 on the backplane. It is in front of the RJ-45 Ethernet plug. Flip the switch on. This activates the GC's DHCP server. The server typically takes 20 seconds to initialize and start up.

  • Page 67: Interacting With The Local Operator Interface (Loi)

    Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 NOTICE Refer to our Downloads page to download the latest version of Rosemount MON2020. 5. Select Connect on the Chromatograph screen. The Connect to GC screen opens. 6. Click the Ethernet button in the Direct-DHCP row.
  • Page 68 Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 Figure 4-2: LOI 4.2.1  Menu operation To view the Main Menu from the Home screen, press Enter ( ). Use the arrow keys to navigate through the menus. To exit the Main Menu and return to the Home screen, press Exit ( ).
  • Page 69 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 1. Press Enter ( ). If you made any changes to the screen’s data, the LOI validates and saves them, while also generating the appropriate event log entries. The LOI then exits the current screen.

  • Page 70: Local Operator Interface (Loi) Screen Descriptions

    Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 4.3  Local operator interface (LOI) screen descriptions 4.3.1  View menu Current Alarms screen Figure 4-3: Current Alarms screen A. Check box: select the alarm’s check box in order to acknowledge it. B. State: indicates whether the alarm is active (...
  • Page 71 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 Report Viewer screen This window displays after you select a report type from the Report Display screen. This screen's content is dependent upon the type of report selected. Figure 4-5: Report Viewer screen...
  • Page 72 Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 Status Display screen This screen displays the gas chromatograph (GC) parameter that is being monitored. You can change the parameter with Rosemount MON2020's LOI Status Variables screen. Value The GC parameter’s current value.
  • Page 73 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 Valves screen A. Label The name of the valve as set in Rosemount MON2020. B. Mode There are three modes: • Auto: The valve’s on or off state is controlled by the gas chromatograph (GC).
  • Page 74 MS-00809-0100-0470 Carrier Pressure screen Indicates the target pressure. This pressure is controlled by the external Set Point regulator on the Rosemount 470XA unit. Current pressure. The carrier pressure gauge value on the flow panel may Current Value be slightly different from the value on the Carrier Pressure screen. Adjust the carrier pressure regulator to the Set Point on this screen.
  • Page 75 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 • The operator can set the mode. The Invert Polarity option reverses the way a voltage signal is interpreted by Invert Polarity the discrete input. By default, the Invert Polarity option is set to Normally...
  • Page 76 Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 Analog Inputs screen Label The name of the analog input as set in Rosemount MON2020. An analog input has two operational modes: Switch • Setting the switch to Variable means that the analog input is set automatically, based on the signal it receives.
  • Page 77 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 Analog Output screens Figure 4-8: Analog Output 1 screen Figure 4-9: Analog Output 2 screen The name of the analog output as set in Rosemount MON2020. Label An analog output has two operational modes: Switch •...
  • Page 78 Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 4.3.3  Application menu System screen Displays the gas chromatograph (GC) name that appears in the Analyzer Name status bar on the main window when Rosemount MON2020 is connected to the GC. Displays information that further identifies the currently System description connected system.
  • Page 79 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 Calibration Gas Info screen Displays the calibration concentration per component as entered from the calibration certificate. Press Enter to display the Uncertainty percentage. Press Enter again to display Cal Gas Energy Value. Timed Events screen Event Type Displays the type of event that occurred.
  • Page 80 Number of data bits. For RTU communication, this is typically set to 8 bits, and for ASCII mode this is typically set to 7 bits. Number of stop bits. This can only be set to 1 in the Rosemount 470XA. Stop Bits Parity check method.
  • Page 81 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 Port Type of physical message protocol to be used for the port. Each port can be set to RS-232 or RS-485 mode independently. NOTICE The port will automatically communicate in ASCII or RTU mode, depending on the message format received from the host device.
  • Page 82 Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 NOTICE To add an entry to the log, press 1 on the keypad. Add a new entry to the Maintenance Log Procedure 1. From the Maintenance Log screen, press 1 on the keypad.
  • Page 83 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 Select the Purge stream for 60 seconds check box if you want to allow sample gas to flow through the sample loop for 60 seconds prior to beginning the first analysis. To start a calibration, select a stream and then press on the keypad.

  • Page 84: Common Local Operator Interface (Loi) Tasks

    Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 2. Enter the appropriate number for the current month. 3. Press 4. Move to the next text box. 5. Repeat Step 1 through Step 3 for the other text boxes. Enable or disable Daylight Savings Time Daylight Savings Time is the practice of temporarily advancing clocks so that afternoons have more daylight and mornings have less.
  • Page 85 Physical layer communication protocol. Select either RS-232 or RS-485. Port NOTICE The Rosemount 470XA does not have a setting for ASCII or RTU mode. The GC automatically detects the mode during its initial communications with the host device and automatically selects the correct mode.
  • Page 86 Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 NOTICE If more the one calibration stream is configured, from the Streams screen, select the Calibration Stream and then select a Cal Stream. The Calibration Concentration screen displays. 3. Enter the concentration values that are written on the calibration gas certificate into the appropriate fields on the Calibration Concentration screen.
  • Page 87 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 4.4.3  Calibrate the gas chromatograph (GC) for the first time Procedure 1. Open the Heater screen. 2. Confirm that the Temperature for Heater 1 matches the Setpoint and that the Current PWM is less than 40.
  • Page 88 Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 NOTICE If the calibration generated any alarms go to the Current Alarms screen to view them. Refer to Troubleshooting to learn how to resolve calibration issues. 15. Open the isolation valves for the sample stream(s) and set the pressure to 20 psig (1.4 barg).
  • Page 89 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 3. Press The alarm is acknowledged. 4.4.6  Acknowledge all alarms Procedure 1. Go to the Current Alarms screen in one of two ways. • From the Home screen, press 2. • From the Main Menu, go to View → Current Alarms.
  • Page 90 Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 2. Go to Logs → Event Log. 3. Press The Event Log screen displays. 4.4.10  View a live chromatogram Live chromatograms display on the Home screen by default, but there are two other ways of viewing a live chromatogram on its own screen.
  • Page 91 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 5. Press The Archived CGM screen displays. 6. Press Edit to zoom, change the cursor, hide the baseline, change the scale, or see results. 7. Use Up or Down to highlight an option.

  • Page 92: Advanced Configuration And Operation Topics

    Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 2. Go to GC Control → Calibration. 3. Press The Start Calibration screen displays. 4. Press 5. Press The Purge stream for 60 seconds feature allows sample gas to flow through the sample loop for 60 seconds prior to beginning the first analysis. The feature is checked by default.
  • Page 93 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 The main advantage of the validation is to confirm the analysis is within specifications without changing the calibration factors. Prepare for a validation Before starting a validation run you must configure the stream that you intend to use as the validation stream.
  • Page 94 Before using a new calibration gas blend for calibrating the gas chromatograph, you must verify the composition stated on the certificate by using the Rosemount 470XA to analyze the new calibration gas.
  • Page 95 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 NOTICE On step 6, enter the calibration gas concentrations. You can obtain these from the bottle certificate. The screen auto calculates the methane value if the Auto Calculate Methane check box is selected. If the calibration gas’s certificate displays a methane value, compare the value to the screen’s methane value.
  • Page 96 Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 Figure 4-10: Timing of Valve Switching This image shows two different times for switching the valves when two components are eluting from a column. The example on the left shows the ideal time between the two peaks.
  • Page 97 Maintenance mode are not included in the averages calculated by the GC. 4.5.6  Conserve calibration gas To save calibration gas, the Rosemount 470XA has a unique feature called Cal-Gas Saver that reduces calibration gas usage significantly. During normal operations, the next stream will start to be purged through the sample loop from when the sample shut-off valve that is operated by the back-flush valve timing, at around 25 seconds, is opened, through to the start of the next analysis.
  • Page 98 4.5.7  New Module software assistant When you install a new analytical module on the Rosemount 470XA and turn on the power, the GC recognizes that a new module has been installed and starts the New Module software assistant, which heats up the oven, runs carrier gas through the analytical paths, and cycles the analytical valves to rapidly purge the system.
  • Page 99 Manual Using the Rosemount 470XA MS-00809-0100-0470 June 2023 Figure 4-13: New Module Software Assistant NOTICE You can initiate the New Module software assistant from the local operator interface (LOI) or MON2020 by selecting Module Validation on the Tools menu. NOTICE Changing the CPU board will also start the New Module software assistant because of the mismatch between the CPU board and the analytical module.
  • Page 100 Using the Rosemount 470XA Manual June 2023 MS-00809-0100-0470 Figure 4-14: Calibration Concentration Information When the oven temperature has stabilized, the software assistant automatically runs the calibration gas and validates the module. The validation runs three analysis cycles of calibration gas and confirms that the analysis is within the pre-configured specifications. If the analysis is within the specifications, a calibration cycle is then run.

  • Page 101: Chapter 5 Preventative Maintenance

    Preventative maintenance MS-00809-0100-0470 June 2023 5  Preventative maintenance Emerson recommends calibrating the gas chromatograph (GC) daily and reviewing GC performance (repeatability, total unnormalized, n-pentane retention times, and ethane retention times) monthly. 5.1  Save diagnostic data At least every other month, create and save a diagnostic data file and check carrier and calibration gas supplies.

  • Page 102: Configure The Valve Timing

    2. Click PC File to display the Open Trend File dialog and navigate to a saved file on your personal computer (PC). 3. Click Close to exit the Trend Data screen and return to the home page. 5.4  Configure the valve timing Related information Auto Valve Timing (AVT) screen Emerson.com...

  • Page 103: Replacing The Maintainable Module

    4. Turn off the carrier and actuation gases at the isolation valve closest to the GC. 5. Use a 2 mm hex wrench to loosen the dome locking screw located on the left side of the GC above the gas lines. A. Dome locking screw Rosemount 470XA...
  • Page 104 The oven is approximately 176 °F (80 °C) and hot to the touch. 8. Loosen the three hex screws holding the module to the base. 9. Remove the three hex screws. 10. Grip the module base and carefully lift it off its housing. Emerson.com...
  • Page 105 Manual Replacing the Maintainable Module MS-00809-0100-0470 June 2023 11. Tilt the module and attach it to the post. Rosemount 470XA...
  • Page 106 Replacing the Maintainable Module Manual June 2023 MS-00809-0100-0470 12. Disconnect the wiring from the heater, intelligent module board (IMB), and solenoids. Figure 6-1: Solenoids A. Valve actuation solenoids B. Stream switching solenoids Emerson.com...

  • Page 107: Install A Maintainable Module

    Figure 6-2: Swagelok fittings 14. Remove the module from the post. 6.2  Install a Maintainable Module Prerequisites Parts required • Analytical module • Swagelok fittings ® — 11 if using helium carrier gas — 13 if using hydrogen carrier gas Rosemount 470XA...
  • Page 108 7. Turn the module 45 degrees. 8. Place the insulation cap over the heater cap. 9. Open the actuation gas isolation valve. 10. Using the pressure regulator, set the gas pressure to the factory specifications. 11. Tighten the three mounting screws on the module. Emerson.com...
  • Page 109 GC was shut down. If it does not, the analyzer starts the New Module software assistant. If the serial numbers do match, the analyzer warms up and stays in Idle mode. Rosemount 470XA...
  • Page 110 Replacing the Maintainable Module Manual June 2023 MS-00809-0100-0470 Emerson.com...

  • Page 111: Repairing And Maintaining The Valves

    Replacement part required: Diaphragm 6-port XA Valve (9A00096G01) NOTICE Rosemount valves have a lifetime warranty. Replacement factory-built XA Series valves are available. Call your local Emerson Customer Care representative for more information. Figure 7-1: Valve with diaphragm kit Rosemount 470XA...
  • Page 112 Align the pins with holes in the block and push the valve assembly into place. b) Tighten the valve’s torque bolt. The six-port valve requires 20 ft-lb of torque. c) Reinstall the valve using the two mounting screws and reconnect all fittings and tubing. Emerson.com...

  • Page 113: Replace Solenoids

    Keep cover tight while circuits are live. Use cables or wires suitable for the marked "T" ratings. Cover joints must be cleaned before replacing the cover. Ensure that conduit runs have a sealing fitting adjacent to the enclosure. Rosemount 470XA...
  • Page 114 Repairing and maintaining the valves Manual June 2023 MS-00809-0100-0470 Figure 7-2: Solenoids Prerequisites Required tools: • 5/32-in. allen wrench • Phillips head screwdriver #1 Procedure 1. Loosen the screws holding the solenoid in place and remove the solenoid. 2. Place the new solenoid. Emerson.com...
  • Page 115 Manual Repairing and maintaining the valves MS-00809-0100-0470 June 2023 3. Tighten the screws to hold the solenoid in place. 4. Place the oven upright. Rosemount 470XA...
  • Page 116 Repairing and maintaining the valves Manual June 2023 MS-00809-0100-0470 Emerson.com...

  • Page 117: Chapter 8 Troubleshooting

    MS-00809-0100-0470 June 2023 8  Troubleshooting 8.1  Alarms The following alarms may appear on the Rosemount 470XA . 8.1.1  Maintenance Mode The Maintenance mode is on. The flag in the Modbus map for Maintenance mode is ® switched on, and the discrete out for activating the common alarm (if configured) is on.
  • Page 118 If the cable is connected check if the oven feels hot. 7. Open MON2020 and open the Diagnostics screen from the Tools menu. 8. Check if the System 22V input value is above 22 V. • If it is below 22 V, see Step 4. Emerson.com...
  • Page 119 Set the heater's Switch to Auto. Turn off the GC and inspect the heater cable connection. If the cable is not secure, secure it and return power to the GC. If the cable is secure, contact your Emerson Customer Service representative. Rosemount 470XA...
  • Page 120 The carrier gas pressure, as measured on the carrier gas pressure sensor on the analytical module, is too low. The carrier pressure regulator on the Rosemount 470XA measures and controls the pressure. If the pressure does not reach the set-point within 60 seconds, the Carrier Pressure Low or Carrier Pressure out of Range alarm is triggered.
  • Page 121 1. Remove power and confirm the analyzer board is seated correctly on the back plane. 2. If the analyzer board is seated correctly, replace the analyzer board. 3. If replacing the analyzer board does not rectify the issure, replace the back plane board. Rosemount 470XA...
  • Page 122 If you still get the error after running the AVT with default values: a. Use MON2020 to select the Chromatogram Viewer on the Chromatograph menu. b. Click GC Archive. c. Download the first and last AVT chromatograms. d. Save the AVT report and contact your local Rosemount service representative. Emerson.com...
  • Page 123 If the retention time for n-pentane is greater than 120 seconds, increase the pressure with the carrier pressure regulator. • If the retention time for ethane is greater than 215 seconds, increase the pressure with the carrier pressure regulator. Potential cause AVT missing peak. Example: AVT Missing Peak: i-Pentane Rosemount 470XA...
  • Page 124 1. Open the Alarms screen and acknowledge and clear the Module Validation Failure alarm. • If the module is not new or overhauled, configure it using the overhaul procedure. • If the module is new or overhauled, proceed to Step 2. Emerson.com...
  • Page 125 8.1.23  IMB CDT Component is missing in GC A component that is in the component data table stored in a recently installed module is not configured in the GC's existing component data table. The component data table of Rosemount 470XA...
  • Page 126 Save the current configuration and replace the CPU board. 8.1.29  n-Pentane RT Drift The retention time for the n-pentane peak has drifted too close to Valve 3's timing. Potential cause This is typically due to contamination in the valves. Recommended action Exchange and overhaul the module. Emerson.com...

  • Page 127: Gc Won't Power Up

    The sample is equalized to atmospheric pressure at the beginning of each analysis cycle, so that the amount of sample analyzed will change with the atmospheric pressure. Large swings in atmospheric pressure associated with weather events can cause changes in un-normalized total outside of the typical ±2 percent limits. Rosemount 470XA...
  • Page 128 If there is flow through the restrictor, proceed to Step 8. 8. Reassemble and re-run the analysis. • If the un-normalized total is above 98 percent, return the GC to service. • If the un-normalized total is below 98 percent, proceed to Step 9. 9. Replace the stream solenoid. Emerson.com...

  • Page 129: Replace The Central Processing Unit (Cpu)

     CAUTION Electrostatic discharge (ESD) handling precautions required CPU boards are sensitive electronic devices. Do not ship or store near strong electrostatic, electromagnetic, or radioactive fields. Use an anti-static wrist strap (or ESD wrist strap) when handling the boards. Rosemount 470XA...
  • Page 130 8. Place the clear plastic cover back over the boards. 9. Close the GC cover. 10. Power up the GC and connect to it through MON2020. 11. In MON2020, go to Chromatograph → View/Set Date_Time. Set the date and time for the GC. Emerson.com...

  • Page 131: Recover The Central Processing Unit (Cpu)

    4. Remove the CPU board from the card cage. 5. Turn SW7 off (away from the dot). 6. Set the CPU board aside for ten minutes to bleed the contents of the battery backed random access memory (RAM). Rosemount 470XA...
  • Page 132 9. Install the cover on the card cage. 10. Close the GC cover. 11. Power up the GC. 12. Connect to the GC using MON2020. 13. Go to Chromatograph → View/Set Date Time. 14. Set the date and time for the GC. Save your changes. Emerson.com...
  • Page 133 17. Connect to the GC using MON2020. 18. Go to File → Restore Configuration (to GC) and restore configuration to the GC. 19. Wait for the heaters to stabilize. 20. In MON2020, go to Control → Auto Sequence to return the GC to normal operation. Rosemount 470XA...
  • Page 134 Troubleshooting Manual June 2023 MS-00809-0100-0470 Emerson.com...

  • Page 135: Chapter 9 Spare Parts

    Manual Spare parts MS-00809-0100-0470 June 2023 9  Spare parts Table 9-1: Rosemount 470XA Gas Chromatograph with helium carrier Part number Description 7A04136G11 470XA, kit, analytical module, C6+. He carrier, 1 stream 7A04136G31 470XA, kit, analytical module, C6+, He carrier, 3 stream...
  • Page 136 Spare parts Manual June 2023 MS-00809-0100-0470 (continued) Table 9-3: Rosemount 470XA Gas Chromatograph with hydrogen carrier Part number Quantity Description 7A04001Gyy Replacement analytical module kit, C6+, OIML/LNE, hydrogen carrier 2-4-0710-248 6-port valve diaphragm repair kit Hydrogen shut-off valve repair kit 2-3-0710-107...

  • Page 137: Appendix A Pre-Defined Modbus ® Map Files

    Manual Pre-defined Modbus map files ® MS-00809-0100-0470 June 2023 A  Pre-defined Modbus map files ® For the Modbus map files used with the gas chromatograph, see the Pre-Defined Modbus Map Files Reference Manual. Rosemount 470XA...
  • Page 138 Pre-defined Modbus map files Manual ® June 2023 MS-00809-0100-0470 Emerson.com...

  • Page 139: Appendix B China Rohs Table

    Manual China RoHS table MS-00809-0100-0470 June 2023 B  China RoHS table Rosemount 470XA...
  • Page 140 Emerson Terms and Conditions of Sale are available upon request. The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount is a mark of one of the Emerson family of companies. All other marks are the property of their respective owners.

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