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Related Manuals for Modern Water OVA7000 Series
Summary of Contents for Modern Water OVA7000 Series
- Page 1 OVA7000 ON-LINE HEAVY METALS ANALYSER ROUTINE SERVICE MANUAL V1.5...
- Page 2 Copyright © 2015 Modern Water Monitoring Ltd. All rights reserved. Modern Water Monitoring Ltd. 15 – 17 Cambridge Science Park CAMBRIDGE CB4 0FQ UNITED KINGDOM Email: info@modernwater.co.uk Web address: www.modernwater.com Telephone: +44 (0) 1483 696000 P/N. 210-071-1.5...
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Page 3: Table Of Contents
Contents 1 Introduction 1.1 OVA7000 ..............................5 1.2 OVA7000dual ............................6 1.3 OVA7000 Set Top Box ..........................6 1.4 Typographical Conventions........................6 2 Getting Started 2.1 Powering Up and Communicating with the OVA7000 ................7 2.2 Priming Reagent Lines ..........................9 2.3 Initiating OVA7000 Operation ........................ - Page 4 Figures Figure 1. OVA7000 and OVA7000dual, shown with optional OVA7000 Set top Box ......5 Figure 2. Ultra VNC Viewer Screen ...................... 7 Figure 3. OVA7000 Main Screen ......................8 Figure 4. OVA7000 Run Screen ......................8 Figure 5. Maintenance popup menu ..................... 11 Figure 6.
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Page 5: Introduction
1 Introduction The On-Line Voltammetric Analyser (OVA) has been designed to enable reliable continuous on–line monitoring of selected heavy metals. The robust and versatile OVA7000 is suitable for use in a variety of industrial applications. The manuals supplied with this instrument are: Routine Service Manual (this manual). -
Page 6: Ova7000Dual
1.2 OVA7000dual The OVA7000 is also available as a dual analytical cell unit. Each cell has its own display, access screen, and application software. The first cell controls the shared preparation cell and tells the second cell when to run. Accordingly the first cell is referred to as the “master”, and the second cell as the “slave”. -
Page 7: Getting Started
2 Getting Started This manual is a simple step-by-step guide to routine servicing of the OVA7000. For more detailed information and instructions on more advanced functions, please refer to the other manuals supplied with the instrument – the OVA7000 Operation Manual and the OVA7000 Reference Manual. The majority of OVA maintenance operations require user interaction with the OVA Application software while the user also interacts with the OVA unit itself. -
Page 8: Figure 3. Ova7000 Main Screen
The Ultra VNC viewer is freely available from http://www.uvnc.com/. Alternative remote viewers exist for Android and iOS platforms. For more information on VNC see section 4.4 of the OVA7000 Reference Manual. Once the remote desktop connection is established, the OVA7000 application software will show the Main screen as shown below. -
Page 9: Priming Reagent Lines
2.2 Priming Reagent Lines Before OVA7000 operation, all tubing lines should be full of fresh reagent and free of air bubbles. To ensure this, the lines need to be primed. Prime reagent lines. Ensure all reagent lines are sitting in full reagent containers, the ends have tube weights and the tubes are fully inserted into the bottles. -
Page 10: Powering Down The Ova7000
2.5 Powering Down the OVA7000 It is not normally necessary to power down the OVA7000 for weekly maintenance. If it does become necessary for any reason, follow the below procedure after stopping the OVA7000 as described above. Caution: Selecting the “Shut down” option for the OVA7000 via a remote desktop connection will result in the OVA7000 turning off, and an operator having to physically visit the OVA7000 to turn it back on. -
Page 11: Weekly Maintenance
3 Weekly Maintenance Routine maintenance should be carried out when the OVA7000 is to be started for the first time after installation or repair as well as on a regular basis. The frequency of the maintenance will be dictated by the nature of the sample and the frequency of analysis. -
Page 12: Reagent Replacement And Monitoring
3.2 Reagent Replacement and Monitoring Reagents can usually be replaced while the OVA7000 is carrying out an analysis providing precautions are taken to stop air from being sucked into the reagent tubes. The OVA7000 will normally use electrolyte, standard and cell rinse solution (normally deionised water). -
Page 13: Pump Calibration Procedure
Figure 7. OVA7000 Calibrate Screen 3.3.1 Pump Calibration Procedure Filter and UV Cycle pumps do not need to be calibrated (and will have a configured flow value of 0.0 ml/s) Drain pumps do not need to be calibrated if their configured flow value is lower than their actual value (eg 1.0 ml/s rather than 1.4 ml/s), or if the operating scripts pump more than required (eg 13ml rather than 10ml) ... -
Page 14: Working Electrode Maintenance
3.4 Working Electrode Maintenance The electro-active surface of the working electrode will not remain perfect for an indefinite period. Periodically the electrode surface will need to be renewed. A deterioration of the surface will usually manifest itself as a low standard peak or lack of reproducibility, particularly on repeat analyses of a standard sample whose characteristics are known. -
Page 15: Filter Pump Tubing
3.5.1 Filter Pump Tubing Filter pump tubing replacement procedure. Open the pump cover facing by undoing the 2 front screws as shown in Figure 8. Insert the pump tubing as shown in Figure 9. It will be helpful to turn the pump rotor as you do this. Replace the pump facing and the 2 screws. -
Page 16: Checklist Sheet
4 Checklist Sheet This checklist sheet over-page should be photocopied and kept as a record of OVA7000 maintenance history. OVA7000 Routine Service Manual V1.5... -
Page 17: Figure 11. Service Checklist Sheet
Figure 11. Service Checklist Sheet OVA7000 Routine Service Manual V1.5...
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