Malvern Instruments DEG0003 User Manual

Vacuum degasser

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Vacuum Degasser
User Manual
MAN0376 Issue 2.0 January 2007

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Summary of Contents for Malvern Instruments DEG0003

  • Page 1 Vacuum Degasser User Manual MAN0376 Issue 2.0 January 2007...
  • Page 2 © Malvern Instruments Ltd. 2006, 2007 Malvern Instruments makes every effort to ensure that this document is correct. However, due to Malvern Instruments’ policy of continual product development we are unable to guarantee the accuracy of this, or any other document after the date of publication. We therefore disclaim all liability for any changes, errors or omissions after the date of publication.
  • Page 3: Table Of Contents

    T able of Contents ..........1-1 Introduction .
  • Page 4 Table of Contents Vacuum Degasser Page ii MAN 0376...
  • Page 5: Introduction

    Instrument Part Number Malvern Vacuum Degasser DEG0003 This manual can used as a stand-alone manual that covers the operation and main- tenance of the Malvern Vacuum Degasser. The aim of this manual is to: Identify what the accessory is.
  • Page 6 Customising reports and exporting results. Degasser specific Health and safety Warning! Use of the system in a manner not specified by Malvern Instruments Ltd may impair the protection provided by the system. Warning! Use of this product outside the scope of this manual may present a hazard.
  • Page 7: Access To The Vacuum Degasser

    Vacuum Degasser User manual Access to the Vacuum Degasser Within this manual, reference may be made to the various people who will have access to the accessory. Below is a list of these people and their responsibilities: Malvern personnel Malvern personnel (service engineers, representatives etc.) have full access to the accessory and are authorised to perform all service procedures that may require the removal of the covers.
  • Page 8: Where To Get Help

    Vacuum Degasser User manual Where to get help Other manuals Several manuals may be supplied with the system, with each one giving informa- tion on a different aspect of the system. Below is a list of the typical manuals sup- plied with the system, detailing the type of information that each manual will contain.
  • Page 9: Introduction To The Degasser

    Vacuum Degasser User manual Introduction to the Degasser The Vacuum Degasser is a high-efficiency in-line module that removes dissolved gasses from solvents used in flowing systems, and more specifically from the titrants used in the MPT-2 Autotitrator. Its design assures reliable continuous operation and the highest level of continuous performance available without the need for helium degassing.
  • Page 10: Identifying The Features Of The Degasser

    Vacuum Degasser User manual Identifying the features of the Degasser Front Panel Connections Front of Vacuum Degasser LEDs POWER VACUUM STATUS Titrant line I/P / O/P ports ill 7567 There are 3 degassing channels labelled A to C on the front of the Degasser. Each channel consists of a pair of female connectors which provide the input and output ports for running the titrant lines through the Vacuum Degasser.
  • Page 11 EXHAUST ill 5568 Power Connector Caution! Only use the AC power adaptor as supplied from Malvern Instruments. Connect the output plug from the AC power adaptor to this connector. See Specifications chapter for further power requirement information. Power Switch The On/Off power switch turns the Vacuum Degasser On, O = Off I = On.
  • Page 12 Vacuum Degasser User manual Exhaust Port Any gas pumped out of the vacuum chamber exits the unit through the exhaust port. Validation Connector Depending on the model, there may be a 2-pin receptacle labelled "Validation" located next to the power switch. This receptacle and its associated screw-lock plug allow a validation signal from the Vacuum Degasser's control circuit to be sent to a computer or data system.
  • Page 13: Setup And Connection Of The Degasser

    Vacuum Degasser User manual Setup and Connection of the Degasser Installing the AC Adapter and Power lead Ensure Degasser is turned on. Plug the round connector at the end of the AC Adapter's cord into the Power socket on the Vacuum Degasser rear panel. Select the correct country specific adaptor plug and connect to the AC adapter With the wall power socket off, insert AC adaptor into the wall socket.
  • Page 14 Vacuum Degasser User manual Screw the connector into one port on the front of the Vacuum Degasser (Channel A, for example). The direction of flow through the Vacuum Degas- ser is not critical. Note Plastic connectors should only be tightened by hand - over-tightening them will damage the threads.
  • Page 15 Vacuum Degasser User manual The below diagram indicates how the MPT-2 Autotitrator will be connected to the Vacuum degasser. The titrant tubes are fed from the titrant containers through the space at the top of the dispensing area cover towards the degasser input ports. Titrant tubing then comes from the degasser output ports, back through the space at the top of the dispensing area cover...
  • Page 16: Operating The Degasser

    Vacuum Degasser User manual Operating the Degasser Operating Summary The notes below give a brief overview of the operating process. More information is given in the following sections. Select and fill each titrant container with the titrant(s) used for the analysis. Verify that the Vacuum Degasser is properly installed as described in the previ- ous Setup and connection of the Degasser chapter.
  • Page 17 Vacuum Degasser User manual the vacuum pump can be checked by placing a hand onto the instrument and checking for vibration Start the titrant flow through the system and check for leaks around the connectors. Note If a leak occurs at the connection, tighten the fitting an additional 1/8 turn. If the leak persists, disconnect the leaking fitting and inspect it.
  • Page 18 Vacuum Degasser User manual Note The MPT-2 should be primed after the degasser has reached equilibration. This will ensure that the titrant in the tubes from the degasser to the sam- ple tube is fully degassed. The Vacuum Degasser uses Teflon AF® mem- branes;...
  • Page 19 Vacuum Degasser User manual Principles of degassing using Teflon AF® membranes This relatively recent addition Teflon AF® membranes to the field of degassing is due to their having properties not found in other fluoropolymers. The fully amor- phous nature of this fluoropolymer and its molecular structure creates a molecular level porosity unlike the mechanically induced porosity in PTFE extruded tubing.
  • Page 20 Vacuum Degasser User manual To more thoroughly degas a titrant, connect the outlet of the organic channel to the inlet a second channel and the outlet of the second channel to the pump. This places the two channels in series and doubles the degassing capacity for the organic portion of the titrant.
  • Page 21: Maintenance

    Vacuum Degasser User manual Maintenance To experience long and trouble-free performance with the Vacuum Degasser, it is recommended that both routine and preventive maintenance procedures be regu- larly performed. Preventative Maintenance Perform preventive maintenance to ensure that your Vacuum Degasser will per- form consistently at an optimal level.
  • Page 22 Vacuum Degasser User manual Troubleshooting Guide: Problem Probable Cause Solution Power switch is on, but The AC Adapter is not Plug the AC Adapter into all 3 LEDs are off, indi- plugged into the AC wall the AC outlet. cating no power to the socket.
  • Page 23 Vacuum Degasser User manual Problem Probable Cause Solution No titrant flow. If a buffer titrant was left Use a different channel, in the degasser for some or connect the channel time after use, it may to a beaker of the titrant plug the degasser ele- without the buffer.
  • Page 24: Specifications

    Vacuum Degasser User manual Specifications General: Dimensions: Height: 5.0 in. Width: 2.87 in. Depth: 9.81 in. Weight 6 lb Channels 3 independent Degassing Process Gas permeation through a fluoropolymer membrane Maximum Flow Rate 10 mL/min. Degassing Capacity ~2 ppm at 1 mL/min. Dead Volume ~480 microliters per channel for standard channel Materials contacting...
  • Page 25 Vacuum Degasser User manual Storage Conditions: Ambient temperature –20 to +60 ºC Ambient Relative 20 to 80% RH (without condensation) Humidity Altitude 0 to 12000 M Connector and Tubing sizes: Connectors Material PEEK Size / description 1/4-28 flangeless fittings for 1/16" 'Outside Diameter' tubing Connecting Tubing from MPT-2...
  • Page 26: System Requirements And Unpacking

    A set of four interchangeable adaptor plugs are is included to allow the AC adapter to be plugged into the standard electrical wall sockets in North America, Japan, the U.K., most countries in continental Europe, and Australia. If it is necessary to replace the AC Adapter - Contact Malvern instruments about replacement. Note Refer to the Health and Safety section on the main Zetasizer Nano user manual for more information.
  • Page 27 Immediately report any damage or missing items to your Service Representative. Items supplied with the Vacuum Degasser: Item Quantity Malvern Vacuum Degasser DEG0003 AC Adapter (including lead) Interchangeable adaptor plugs (North America/Japan, U.K., Continental Europe, Australia) User Manual...
  • Page 28: Chemical Compatibility

    Vacuum Degasser User manual Chemical Compatibility Note Consult the MPT-2 Autotitrator manual for details of the MPT-2 chemi- cal compatibility. Titrants and Solvents Use only HPLC grade solvents in all analyses. Caution! The degassing membrane in the Vacuum Degasser is manufactured from Teflon AF®.
  • Page 29: Regulatory Information

    Vacuum Degasser User manual Regulatory Information CE Declaration of Conformity The CE badge on this product signifies conformance to European Commision Directives. ill 7616 Vacuum Degasser Page 25...
  • Page 30 Note Changes or modifications not expressly approved by Malvern Instruments Limited could void the user’s authority to operate the equipment. Page 26 MAN 0376...
  • Page 31 Vacuum Degasser User manual Disposal of Electrical & Electronic Equipment This regulation is applicable in the European Union and other European countries with separate collection systems. ill 7610 This symbol on the product or on its packaging indicates that when the last user wishes to discard this product it must not be treated as general waste.

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