Markes International UNITY 2 Installation Manual
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Markes International UNITY 2 Installation Manual

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Installation manual
UNITY 2™
Markes International Ltd
T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com
www.markes.com
Version 2.0 – February 2014
QUI-1056

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Summary of Contents for Markes International UNITY 2

  • Page 1 QUI-1056 Version 2.0 – February 2014 Installation manual UNITY 2™ Markes International Ltd T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com www.markes.com...

  • Page 2: Table Of Contents

    Electrical properties ............7 Technical support contact details ..........7 2. UNITY 2 Pre-installation Check List ............ 8 Minimum computer specification for UNITY 2 control ....8 GC equipment requirements ............8 2.2.1 Access into the GC oven ........... 8 2.2.2...
  • Page 3 QUI-1056 Page 3 3.1.3 Connecting the Transfer Line to UNITY 2 ......13 Inserting Split Filter Tube ............... 16 Installing the cold trap ..............18 Connections to UNITY 2 ..............23 3.4.1 Gas connections ............... 23 3.4.2 Electrical connections ............23 4.

  • Page 4: Preface

    Page 4 1. Preface This manual provides detailed instructions on the use of the UNITY 2. It is suitable for users with little or no prior experience of the system and details the software/hardware interface and procedure for first sample runs.

  • Page 5: Labels/Symbols

    1.4.3 High temperatures  Several parts of the UNITY 2 can be operated at high temperatures. Contact with Several parts of the UNITY 2 can be operated at high temperatures. Contact with Several parts of the UNITY 2 can be operated at high temperatures. Contact with these zones whilst the system is in operation can cause serious burn injury.

  • Page 6: Hydrogen Gas Safety

     For further advice on the use of hydrogen as a carrier gas, please contact Markes International Technical Support. 1.4.5 Cleaning and decontamination Please consult Markes International or your local agent for information on decontamination or the use of cleaning agents NOTE: Incorrect cleaning/decontamination could result in damage to the instrument. Environment operating conditions The instrument should be protected from conditions that could cause exposure to frost, dew, percolating water, rain, excessive direct sunlight, etc.

  • Page 7: Altitude

    <40 A (cold start) Technical support contact details In the first instance please contact your distributor. If they are unable to resolve your query, please contact Markes International (details below). Address: Gwaun Elai Medi-Science Campus, Llantrisant, RCT, UK, CF72 8XL Website: www.markes.com...

  • Page 8: Unity 2 Pre-Installation Check List

    2.2.1 Access into the GC oven The UNITY 2 heated transfer line is lined with 0.25 mm I.D., 0.35 mm O.D. uncoated deactivated fused silica which butt connects with the capillary analytical column inside your GC oven. It is important that the heated and insulated portion of the transfer line extends as far as the skin of the GC oven such that the GC oven heating begins at the point where heating of the transfer line ends.

  • Page 9: Quality Of The Laboratory Air

    50 and 60 psi both to actuate the main valve and to purge the cold trap box. It is recommended that a secondary pressure regulator be used to control the supply of dry gas to UNITY 2 in addition to that controlling the general laboratory line pressure. Any conventional pressure regulator should suffice for this and suitable pneumatic control may already be available on your GC.

  • Page 10: Filters

    NOTE: As ECC only controls the carrier gas, suitable pneumatic control of the dry gas will still be required. A U-GAS01 from Markes International includes a carrier gas regulator to step down the carrier pressure and a separate regulator and gauge for control of the dry air or nitrogen, and is therefore recommended in this case.

  • Page 11: Installing Unity 2

    3. Installing UNITY 2 Installing the Transfer Line UNITY 2 is supplied with a universal transfer line to convey desorbed analytes from UNITY 2 to a gas chromatograph or other analytical system. The sample path utilises a deactivated fused silica line (0.25mm I.D.
  • Page 12 2. As the entry hole will generally be larger than the diameter of the metal line sleeve, one or more of the large washers supplied will be needed. Transfer Line Heater Washer Injector Body Washer Markes International Ltd T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com www.markes.com...

  • Page 13: Installing The Fused Silica Transfer Line Insert

    Insert the fused silica transfer line into the heated transfer line at the GC end. Push the tubing through the 1/8-inch aluminium tube of the heated transfer line until it protrudes from the other (UNITY 2) end of the transfer line.
  • Page 14 Make a mark 20 mm from the end of the fused silica using typing white-out fluid or an alternative out fluid or an alternative marker. Markes International Ltd T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com enquiries@markes.com www.markes.com...
  • Page 15 (spanners) provided in the shipping kit. CAUTION: Do not over tighten or the ferrule will become distorted 5. Secure Transfer Line Assembly to UNITY 2 a. Carefully bring the clamp plate, PTFE plate and shield tube down into the position with the shield tube covering the union nut.

  • Page 16: Inserting Split Filter Tube

    6. Plug the 2 connectors highlighted into their respective sockets Inserting Split Filter Tube 1. Check the tube receivers to ensure the white PTFE frits are present in both sample and split tube sides. Markes International Ltd T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com www.markes.com...
  • Page 17 4. Replace the heated valve surround and secure with the 2 screws removed in the first step. NOTE: Ensure no wires are trapped under the cover edges. Markes International Ltd T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com...

  • Page 18: Installing The Cold Trap

    Page 18 5. Replace the rear top cover. Installing the cold trap Ensure the power to UNITY 2 is switched OFF. 1. Remove the front top cover from UNITY 2 a. Pull the cover forward b. Lift up the cover to remove Markes International Ltd T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com...
  • Page 19 3. Gently pull the Trap Pneumatics Assembly towards the front of the instrument taking care to keep it in the horizontal plane 4. Once clear of the screw, lift the Trap Pneumatics Assembly clear and rotate to the left. Markes International Ltd T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com www.markes.com...
  • Page 20 NOTE: If the tool does not move smoothly past the point where it enters the brass connector there may be a misalignment problem that must be corrected before continuing with this procedure. Markes International Ltd T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com www.markes.com...
  • Page 21 Page 21 6. Remove the trap alignment tool. NEVER SWITCH UNITY 2 ON WITH THE TRAP ALIGNMENT TOOL INSTALLED 7. Holding onto the glass collar of the cold trap, gently push the trap tube into the cold trap box. DO NOT APPLY EXCESSIVE FORCE TO THE QUARTZ COLD TRAP TUBE 8.
  • Page 22 Secure the Trap Pneumatics Assembly in place, taking care to hold the assembly in place until the screw has been fully tightened. Markes International Ltd T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com www.markes.com...

  • Page 23: Connections To Unity 2

    Please refer to the UNITY 2 ECC Manual (QUI-1062) for full details. 2. Connect the Purge gas to UNITY 2. The pressure must be set to between 50 and 60 psig. NOTE: The dewpoint of this purge gas must be lower than -50°C 3.
  • Page 24 QUI-1056 Page 24 Gas Connections Pressure Outlet Purge/Pneumatic Gas Carrier Gas Inlet Electrical Connections Power Switch Power Lead Connection GC Cable Connection PC Connection Markes International Ltd T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com www.markes.com...

  • Page 25: Software

    Running the software Ensure that the gas supplies to the system - especially the dry air or nitrogen purge gas used for UNITY 2 valve actuation and purging the cold trap box - are on.

  • Page 26: Mass Flow Controllers

    Close down and re-start Markes TD software for the changes to take effect. Mass Flow Controllers Once the software has detected the UNITY 2, the User Interface will be loaded. A scan of the instrument hardware will be performed to determine whether any Mass Flow Controllers (MFCs) are installed.
  • Page 27 Check the correct operation of the GC ready signal. If the signal appears inverted i.e. software reports GC not ready when GC is ready, then change the GC Ready (In) logic. Markes International Ltd T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com...

  • Page 28: Installation Checkout

    Set suitable GC(MS) parameters for the analysis of benzene, toluene, xylene, camphene and di-octyl phthalate Run the UNITY check standard Assess the results Go to Help – System Info and print a copy of the calibration settings. Markes International Ltd T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com www.markes.com...

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