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Summary of Contents for Modern Water OVA 7000
- Page 1 OVA 7000 ON-LINE HEAVY METALS ANALYSER ROUTINE SERVICE MANUAL V1.2...
- Page 2 Copyright © 2012 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. 210-071-1.2...
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Page 3: Table Of Contents
1 Introduction 1.1 Typographical Conventions........................5 2 Getting Started 2.1 Powering Up and Communicating With the OVA 7000 ................6 2.2 Priming Reagent Lines ..........................8 2.3 Initiating OVA 7000 Operation ......................... 8 2.4 Stopping OVA 7000 Operation ......................... 8 2.5 Powering Down the OVA 7000 ........................ - Page 4 Figures Figure 1. Ultra VNC Viewer Screen ...................... 6 Figure 2. OVA 7000 Main Screen ......................7 Figure 3. OVA 7000 Run Screen ......................7 Figure 4. OVA 7000 Calibrate Screen ....................10 Figure 5. Filter pump cover removal ....................13 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 OVA 7000 is suitable for use in a variety of industrial applications. Samples are taken automatically and analysed using the technique of Anodic Stripping Voltammetry. In some instances the sample may require filtration, acidification or UV digestion before it can be analysed. -
Page 6: Getting Started
Log into the OVA 7000 via the remote desktop connection, using a laptop or PC running Ultra VNC Viewer. Enter the IP address of the OVA 7000 (and the port number if the network requires) and press connect. After establishing contact with the OVA 7000’s Ultra VNC Server the Viewer will be asked to enter a password. -
Page 7: Figure 2. Ova 7000 Main Screen
Click the Log In button, located in the bottom right section of the OVA 7000 Main Screen, and enter your username and password. Click the Run button, located in the top right section of the OVA 7000 Main Screen, to enter the Run screen. -
Page 8: Priming Reagent Lines
2.2 Priming Reagent Lines Before OVA 7000 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, and the ends have tube weights. -
Page 9: Weekly Maintenance
If the time the pump is off is never less than 5 minutes, it may be advisable to stop the OVA 7000 by using the Stop button. In this way you will not inadvertently admit air to the reagent tubes. -
Page 10: Replacing Reagent During A Run
An accurate 10 mL volumetric cylinder is required, along with a laptop computer with VNC Viewer software so as to allow interaction with the OVA 7000 application. As the laptop will need to be at the same location as the OVA 7000, the network connection should be either by Wifi or a LAN cable plugged into the OVA 7000 front pump panel. -
Page 11: Non Drain Pump Calibration
Repeat steps 1 to 4 above for and pretreatment cells present, using raw sample in place of the rinse pump. Note that calibration for the Drain pumps does not need to be highly accurate, so long as the scripts used consistently over estimate the drain volumes required to be pumped during operation. OVA 7000 Routine Service Manual V1.2... -
Page 12: Working Electrode Maintenance
Replace the electrode in the cell but do not connect alligator clip. Add a couple of mL of rinse or electrolyte solution to the cell. 10. Restore the OVA 7000 to operational mode as described in section 2.3, Initiating OVA 7000 Operation on page 8. -
Page 13: Filter Pump Tubing
Remove the disk filter (shown in red in Figure 7) from the assembly. This will automatically expand when removed and can easily be cleaned under a tap in most cases. Re-assemble the filter assembly. OVA 7000 Routine Service Manual V1.2... -
Page 14: Checklist Sheet
4 Checklist Sheet This checklist sheet over-page should be photocopied and kept as a record of OVA 7000 maintenance history. OVA 7000 Routine Service Manual V1.2... -
Page 15: Figure 8. Service Checklist Sheet
Figure 8. Service Checklist Sheet OVA 7000 Routine Service Manual V1.2...
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