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OPERATING INSTRUCTIONS FOR
Model 6750
Total Organic Carbon Analyzer
P/N M
ECO:
DANGER
Toxic gases and or flammable liquids may be present in this monitoring system.
Personal protective equipment may be required when servicing this instrument.
Hazardous voltages exist on certain components internally which may persist
for a time even after the power is turned off and disconnected.
Only authorized personnel should conduct maintenance and/or servicing.
Bef
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Model 6750 Copyright © 2005 Teledyne Instruments/ Analytical Instruments All Rights Reserved. No part of this manual may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any other language or computer language in whole or in part, in any form or by any means, whether it be electronic, mechanical, magnetic, optical, manual, or otherwise, without the prior written consent of Teledyne Instruments/ Analytical Instruments, 16830 Chestnut Street, City
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Total Organic Carbon Analyzer Specific Model Information Instrument Serial Number: _______________________ Instrument Range: _______________ Calibrated for: _______________ Background Gas: _______________ Zero Gas: _______________ Span Gas: _______________ Teledyne Analytical Instruments iii
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Model 6750 Safety Messages Your safety and the safety of others is very important. We have provided many important safety messages in this manual. Please read these messages carefully. A safety message alerts you to potential hazards that could hurt you or others. Each safety message is associated with a safety alert symbol. These symbols are found in the manual and inside the instrument. The definition of these symbols is described below: GENERAL WARNING/CAUTION: Refer to the instr
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Total Organic Carbon Analyzer IF YOU USE THE ANALYZER IN A MANNER OTHER THAN THAT FOR WHICH IT WAS INTENDED, UNPREDICTABLE BEHAVIOR COULD RESULT POSSIBLY ACCOMPANIED WITH HAZARDOUS CONSEQUENCES. This manual provides information designed to guide you through the installation, calibration operation and maintenance of your new analyzer. Please read this manual and keep it available. Occasionally, some instruments are customized for a particular application or features and/or options
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Model 6750 Table of Contents List of Figures..............................................................................ix List of Tables ...............................................................................xi Introduction ..................................................................................1 1.1 Main Features of the Analyzer 1 1.2 Options 2 1.3 Typical Applications 2 1.4 Intended Use of the Analyzer 2 1.5 Operator Interface 3 Theory of Operation .........
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Total Organic Carbon Analyzer 3.3 Electrical Connections 23 3.3.1 Power Connection 23 3.3.2 Analog Outputs 24 3.3.3 Alarm Connections 25 3.3.4 RS-232 Serial Connection 25 3.4 Gas/liquid Connections 25 3.4.1 Liquid Connections 25 3.4.2 Gas Connections 26 3.5 Checking the System 27 Setup and Operation...................................................................29 4.1 Analyzer Startup 29 4.2 Menus 31 4.2.1 Run Mode 31 4.2.2 Parameter Menu 32 4.2.3 Alarm Settings 33 4.2.4
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Model 6750 5.3.8 UV Power Supply 58 5.3.9 Mass Flow Controller (P/N ST18001A) 59 5.3.10 Metering Valve (P/N ST16050) 60 5.3.11 Sparger (P/N ST20025) 61 5.3.12 Pumps 63 5.3.12.1 Pump Motor Replacement 63 5.3.12.2 Pump Head Tubing Replacement 65 5.3.13 4-20 mA Adjustment Procedure 67 5.3.13.1 Setting 100 mV Control Voltage 68 5.3.13.2 Setting of 4-20 mA output 68 Appendix..................................................................................... 69 A.1Specifications 69 A.
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Total Organic Carbon Analyzer List of Figures Figure 1-1: The Model 6750 TOC Analyzer (Front door removed) . 3 Figure 2-1: NPOC or TOC – Direct Method.................................... 6 Figure 2-2: TOC – True Method ..................................................... 6 Figure: 2-3: TOC Measurement Basics .......................................... 8 Figure 2-4: UV/Persulfate Method.................................................. 8 Figure 2-5: Comparison of TOC Measurement Tec
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Model 6750 Figure 5-6: DC Power Supply Module........................................... 54 Figure 5-7: Replacing CE Computer............................................. 55 Figure 5-8: UV Lamp Replacement .............................................. 56 Figure 5-9: Removing the UV Reactor Assembly.......................... 57 Figure 5-10: Removing the UV Power Supply............................... 59 Figure 5-11: Mass Flow Controller................................................ 60
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Total Organic Carbon Analyzer List of Tables Table 4-1: Preparation of Standards (TOC/TIC)............................37 Table 5-1: Troubleshooting ...........................................................44 Teledyne Analytical Instruments xi
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Model 6750 DANGER COMBUSTIBLE GAS USAGE WARNING This is a general purpose instrument designed for use in a non-hazardous area. It is the customer's responsibility to ensure safety especially when combustible gases are being analyzed since the potential of gas leaks always exist. The customer should ensure that the principles of operating this equipment are well understood by the user. Misuse of this product in any manner, tampering with its components, or unauthorized
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Total Organic Carbon Analyzer Introduction Introduction Teledyne Model 6750 Total Organic Carbon Analyzer provides accurate and reliable on-line TOC analysis with Windows™ CE Operation, using the UV/Heated Persulfate Oxidation Method. This manual includes all necessary information to help you install, operate and service your Analyzer. The Model 6750 TOC Analyzers have been designed for easy operation and maintenance. Particular attention has been devoted to the design, whereby
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Introduction Model 6750 • RS-232C and RS-485 outputs • Separate electronics and liquid compartments 1.2 Options The following options are available for the Model 6750 TOC Analyzer and are described in Appendix A.3: • Correlated BOD/COD • Dual NDIR Analyzers • Benchmark/Auto Validation • Auto-Cal/Auto-Clean • Automatic Multi-Range • Multi-Stream Analysis • DBPR Drinking Water 1.3 Typical Applications With excellent TOC accuracy from low parts-per-million to high concentration l
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Total Organic Carbon Analyzer Introduction All other types of usage beyond the intended use stated above, are considered as misuse of the analyzer. The supplier assumes no responsibility for damage incurred as the result of misuse of the product. 1.5 Operator Interface The Model 6750 Analyzer is housed in a rugged metal case and may be wall or rack mounted for operator convenience. The enclosure is equipped with a viewing window on the front panel and all operator serviceable compo
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Introduction Model 6750 Teledyne Analytical Instruments 4
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Total Organic Carbon Analyzer Theory of Operation Theory of Operation 2.1 Overview The Model 6750 Analyzer uses the UV/Heated Persulfate method of analysis and is well-suited for many applications involving accurate TOC analysis. The basic analyzer is configured for maximum utility ™ using an advanced Microsoft Windows-based CE computer with touch screen. The analyzer is suitable for both general purpose and/or hazardous area classifications, if properly configured with required
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Theory of Operation Model 6750 To perform correct TOC analysis, the analysis system must be capable of measuring all constituents of organic carbon present in the sample: Non-Purgeable Organic Carbon (NPOC) and Purgeable Organic Carbon (POC). Correct TOC analysis must also exclude the Total Inorganic Carbon (TIC) interference. Figure 2-1 is a basic, commonly used technique to measure the NPOC, sometimes referred to as “TOC-Direct”. Figure 2-1: NPOC or TOC – Direct Method In this m
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Total Organic Carbon Analyzer Theory of Operation (sparges) the CO converted from the TIC and it is measured by an 2 independent CO detector as “TIC”. POC is also stripped from the 2 sample in the sparger as HC, but the HC is undetected by the CO 2 detector and does not interfere with the TIC measurement. A portion of the same sample is also directed to the oxidation reactor, where inorganic and all organic carbon is converted to CO and 2 detected by a second CO detector as “Total
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Theory of Operation Model 6750 Figure: 2-3: TOC Measurement Basics Figure 2-4: UV/Persulfate Method Teledyne Analytical Instruments 8
