Teledyne 6750 - Manuals

Total Organic Carbon Analyzer Teledyne Analytical Instruments v 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 inst...

Model 6750 Teledyne Analytical Instruments vi Table of Contents List of Figures.............................................................................. ix List of Tables ............................................................................... xi Introduction ...............................

Total Organic Carbon Analyzer Teledyne Analytical Instruments vii 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 Checki...

Total Organic Carbon Analyzer Teledyne Analytical Instruments ix 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 ................................................

Total Organic Carbon Analyzer Teledyne Analytical Instruments xi List of Tables Table 4-1: Preparation of Standards (TOC/TIC) ............................37 Table 5-1: Troubleshooting ...........................................................44

Model 6750 Teledyne Analytical Instruments xii 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 leak...

Total Organic Carbon Analyzer Introduction Teledyne Analytical Instruments 1 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 necess...

Introduction Model 6750 Teledyne Analytical Instruments 2 • 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 • Benchm...

Total Organic Carbon Analyzer Introduction Teledyne Analytical Instruments 3 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 Interf...

Total Organic Carbon Analyzer Theory of Operation Teledyne Analytical Instruments 5 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...

Total Organic Carbon Analyzer Theory of Operation Teledyne Analytical Instruments 7 (sparges) the CO 2 converted from the TIC and it is measured by an independent CO 2 detector as “TIC”. POC is also stripped from the sample in the sparger as HC, but the HC is undetected by the CO 2 detector and does...

Total Organic Carbon Analyzer Theory of Operation Teledyne Analytical Instruments 9 2.3 The UV/Heated Persulfate Method of Analysis In the UV/Heated Persulfate Method as used by the Model 6750, the sample is initially mixed with acid and directed to the sparger. For TOC-Direct (NPOC) analysis, the C...

Theory of Operation Model 6750 Teledyne Analytical Instruments 10 Figure 2-5: Comparison of TOC Measurement Technologies

Total Organic Carbon Analyzer Theory of Operation Teledyne Analytical Instruments 11 2.4 Subsystems Principles of Operation The Model 6750 TOC Analyzer is comprised of five subsystems: 1. Sample Handling 2. Inorganic Carbon Removal – OR – Inorganic Carbon Analysis/TOC-True Method 3. Oxidation 4. NDI...

Theory of Operation Model 6750 Teledyne Analytical Instruments 12 actual measurement of the TIC, a more accurate TOC is achieved since (TOC = TC - TIC). “TOC-Direct” mode is preferred for accuracy when no or little volatiles are present. In this mode, the carbonate-free sample is extracted from the ...

Total Organic Carbon Analyzer Theory of Operation Teledyne Analytical Instruments 13 Figure 2-7: Sample Handling TOC-True 2.4.2.2 G AS P HASE S AMPLE H ANDLING Referencing Figure 3-5 and “As Built” drawings in the Appendix, a carrier gas of (99.8%) pure oxygen or CO 2 and hydrocarbon-free air is req...

Theory of Operation Model 6750 Teledyne Analytical Instruments 14 TOC analysis in a continuous, on-line TOC analyzer. The CO 2 generated by the oxidation of carbon in the reactor is read by the NDIR as a percentage concentration of the CO 2 in the carrier gas. CO 2 (TOC) CO 2 (TOC) + Carrier Any inc...

Total Organic Carbon Analyzer Theory of Operation Teledyne Analytical Instruments 15 be reduced to approximately 2.0 to 3.0. If the sample pH is not properly reduced as described in Figure 2-8, increase the normalcy of the acid reagent until the water exiting the sparger drain is between 2.0 and 3.0...

Theory of Operation Model 6750 Teledyne Analytical Instruments 16 The construction of the patented UV reactor in the Model 6750 affords superior oxidation by precisely controlling the sample temperature, adding a precise amount of ultra-pure persulfate reagent (P/N ST40000) and precisely controlling...

Total Organic Carbon Analyzer Theory of Operation Teledyne Analytical Instruments 17 2.4.4 NDIR CO 2 Gas Detection The key component for reliable TOC analysis is the precise and interference-free detection of CO 2 . The Model 6750 NDIR unit requires very little maintenance because of its ability to ...

Total Organic Carbon Analyzer Theory of Operation Teledyne Analytical Instruments 19 2.4.5.1 B ENCHMARK /A UTO -V ALIDATION Benchmark is the European NAMUR* specified validation technique, whereby on command a chemical calibration standard is automatically introduced to the analyzer and the response...

Total Organic Carbon Analyzer Installation Teledyne Analytical Instruments 21 Installation This manual contains “AS BUILT” drawings and a parts list to aid in the installation and operation of the analyzer. These drawings should be referred to when ordering spare parts, operating or servicing the eq...

Total Organic Carbon Analyzer Installation Teledyne Analytical Instruments 23 All operator controls and serviceable components are mounted on the control panel, which is hinged and doubles as the door that provides access to those components not normally requiring maintenance. Internal components of...

Installation Model 6750 Teledyne Analytical Instruments 24 • Power Connection Universal AC Power Source • Primary Input Power CAUTION: POWER IS APPLIED TO THE INSTRUMENT’S CIRCUITRY AS LONG AS THE INSTRUMENT IS CONNECTED TO THE FACILITY POWER SOURCE. THE FACILITY MUST HAVE AN EXTERNAL POWER SWITCH T...

Installation Model 6750 Teledyne Analytical Instruments 26 • Reagents • Drain (s) Connect these lines as per Figure 3-4 and the AS-BUILT drawings in the Appendix. Make sure there are no restrictions or kinks in the sample lines. Figure 3-5: Gas and Liquid Connections to the Analyzer 3.4.2 Gas Connec...

Total Organic Carbon Analyzer Installation Teledyne Analytical Instruments 27 With the exception of the vent and carrier gas inlet, all other gas connections are made on the same bottom panel as the liquid connections and are shown in Figure 3-5. The NDIR vent and carrier gas connections are made on...

Total Organic Carbon Analyzer Setup and Operation Teledyne Analytical Instruments 29 Setup and Operation Once the analyzer has been installed, it can be configured to your application. To do this you will: • Set system parameters • Calibrate the instrument • Define the analysis range. Then choose au...

Setup and Operation Model 6750 Teledyne Analytical Instruments 32 • The current TOC value, • [IR] IR response • [Flow] Carrier Gas Flow rate • [m] Available Memory (kb). 4.2.2 Parameter Menu Although your analyzer has been optimally configured for your application, on initial startup the setup param...

Total Organic Carbon Analyzer Setup and Operation Teledyne Analytical Instruments 33 2. From this menu, select:[Parameters] The following screen appears: This is the Parameters menu from which the analyzer may be configured to suit the requirements of the operator Verify the following settings are c...

Setup and Operation Model 6750 Teledyne Analytical Instruments 34 From this menu verify or change the concentration alarm setpoints using the onscreen scroll arrows. 4.2.4 Stream Sequencer If your analyzer has been configured for a multi-stream sequencer (P/N ST200009), from the [Edit] Menu, select ...

Total Organic Carbon Analyzer Setup and Operation Teledyne Analytical Instruments 35 4.2.5 D/DBPR This optional utility allows convenient external pH calibration and input of alkalinity data consistent with the D/DBPR requirements If your analyzer has been configured for the D/DBPR option, from the ...

Setup and Operation Model 6750 Teledyne Analytical Instruments 36 The following window is illustrative of the D/DBPR [Run] screen. 4.3 Detailed Calibration Procedures 1. Although the instrument has been calibrated to your specifications at the factory, it should be rechecked after satisfactory insta...

Total Organic Carbon Analyzer Setup and Operation Teledyne Analytical Instruments 37 Table 4-1: Preparation of Standards (TOC/TIC) ORGANIC COMPOUNDS 100 mg/Liter TOC (AS CARBON) 1000 mg/Liter TOC (AS CARBON) Ethylene Glycol .233 ml/L H 2 0 2.33 ml/L H 2 0 Methanol .337 ml/L H 2 0 3.37 ml/L H 2 0 Eth...

Setup and Operation Model 6750 Teledyne Analytical Instruments 38 CAUTION: SODIUM PERSULFATE IS A STRONG OXIDIZING AGENT. TAKE ALL NECESSARY PRECAUTIONS AS WITH HANDLING ANY CORROSIVE MATERIAL. ALL CHEMICALS, INCLUDING WATER, SHOULD BE REAGENT GRADE OR BETTER AND FREE OF CARBON-CONTAINING COMPOUNDS....

Total Organic Carbon Analyzer Setup and Operation Teledyne Analytical Instruments 39 Note: On the initial Startup, IR gas calibration should be performed prior to liquid calibration a. Select [CALIBRATE] from the main menu. The following screen will appear: b. Select [TOC]. The following screen appe...

Setup and Operation Model 6750 Teledyne Analytical Instruments 40 f. If the calibration is acceptable, select [OK] or [CANCEL] if not acceptable. The analyzer is now calibrated and ready for analysis. 4.4 Operation After proper installation and calibration, the instrument is ready to be placed “ON-L...

Total Organic Carbon Analyzer Setup and Operation Teledyne Analytical Instruments 41 4.5 Shutdown Prior to shutdown of the analyzer or performing service on the reactor, flush D. I. water through all sample and reagent lines for at least 30 minutes to clean all tubing. CAUTION: FAILURE TO OBSERVE AD...

Total Organic Carbon Analyzer Maintenance Teledyne Analytical Instruments 43 Maintenance 5.1 Compupter-aided Testing Prior to performing detailed troubleshooting procedures listed below, first perform computer-aided testing of the analyzer, as follows: 1. From the screen, select [TEST]. The followin...

Maintenance Model 6750 Teledyne Analytical Instruments 44 From this screen the operator may perform individual testing of components related to functionality and settings. 5.2 Troubleshooting If you are experiencing trouble with your instrument, refer to Table 5-1: Troubleshooting. Table 5-1: Troubl...

Total Organic Carbon Analyzer Maintenance Teledyne Analytical Instruments 45 5.3 Module Service 5.3.1 NDIR (Gas Calibration) 1. From the Menu, select [CALIBRATE]. The following screen will appear: 2. Select [INFRARED ANALYZER]. The following Screen will appear: 3. Disconnect tubing from reactor outp...

Maintenance Model 6750 Teledyne Analytical Instruments 46 Figure 5-1: Disconnecting Tubing from Reactor Figure 5-2: IR Calibration Adapter P/N ST20026 IR Calibration Adapter

Total Organic Carbon Analyzer Maintenance Teledyne Analytical Instruments 47 Figure 5-3: Installing Calibration Adapter 5. To set IR “Zero”, flow 200cc/minute oxygen (or CO 2 - free air) for 5 minutes. Allow NDIR reading to stabilize. Select [ZERO]. NDIR reading is reset to 0. 6. To set IR “Span” fo...

Maintenance Model 6750 Teledyne Analytical Instruments 48 Figure 5-4: Removing the NDIR Unit P/N ST36000 To Replace the NDIR Unit: 1. Turn off power. 2. Remove inlet tube from NDIR Assembly. 3. Remove vent tube from NDIR Assembly. 4. Unplug interface cable from NDIR Assembly. 5. Remove NDIR Assembly...

Total Organic Carbon Analyzer Maintenance Teledyne Analytical Instruments 49 • Remove insulation from IR Cell. • Remove lock-tight from three thumbnuts and remove. • Slide out and remove Source Assembly.

Maintenance Model 6750 Teledyne Analytical Instruments 50 • Remove IR Cell Assembly Note: a. ‘O’-Rings in each of Detector Assembly (left) and Source Assembly (right). b. Sapphire windows located under ‘O’-Rings

Total Organic Carbon Analyzer Maintenance Teledyne Analytical Instruments 51 • *Remove ‘O’-Ring and Sapphire window taking care to avoid scratching Sapphire window. *Recommend using toothpick. • Clean sapphire windows with a soft, lintless tissue (use DI water, if necessary). To Reassemble • Install...

Maintenance Model 6750 Teledyne Analytical Instruments 52 • Tighten three thumbnuts until Source Assembly bottoms out on squeeze nuts. • Recommend: Use alternate tightening sequence • Insert lock-tight on three thumbnuts to prevent backoff. • Install insulation. Replace assembly as before. • Recalib...

Total Organic Carbon Analyzer Maintenance Teledyne Analytical Instruments 53 5.3.3 Master Interface Board (P/N ST13042-1). The Master Interface Board has no field adjustment. If malfunctioning, replace the module P/N ST13042-1 using the instructions below. See Figure 5-5. Figure 5-5: Removing the Ma...

Maintenance Model 6750 Teledyne Analytical Instruments 56 5.3.6 UV Lamp (P/N ST20009) Normal lamp replacement frequency is suggested at least every 12 months, however, if a lamp is “burned-out” (weak or no blue glow), replace with UV Lamp (P/N ST20009), per directions in Figure 8. Figure 5-8: UV Lam...

Total Organic Carbon Analyzer Maintenance Teledyne Analytical Instruments 57 CAUTION: THE UV LIGHTED LENGTH MUST BE AT LEAST 12 ½ INCHES FOR PROPER OPERATION. DO NOT USE STANDARD 12 INCH LIGHTED LENGTH UV LAMPS. 2. Turn off power allow 10 minutes for cool down. 3. Disconnect electrical connectors. 4...

Total Organic Carbon Analyzer Maintenance Teledyne Analytical Instruments 59 Figure 5-10: Removing the UV Power Supply 5.3.9 Mass Flow Controller (P/N ST18001A) If proper flow is not detected by the computer, an alarm will be activated and displayed. The fault may be in the O 2 /Air supply (check fo...

Maintenance Model 6750 Teledyne Analytical Instruments 60 Figure 5-11: Mass Flow Controller 5.3.10 Metering Valve (P/N ST16050) If no O 2 /air flow to the sparger (P/N ST20025) is observed (no bubbles), check for tubing and fitting leaks, restrictions and adjust metering valve (be careful to return ...

Total Organic Carbon Analyzer Maintenance Teledyne Analytical Instruments 61 Figure 5-12: Metering Valve 5.3.11 Sparger (P/N ST20025) The sparger may be removed for cleaning with detergent and subsequent flushing with DI water. If the sparger inner glass body is observed to be leaking (cracked glass...

Maintenance Model 6750 Teledyne Analytical Instruments 62 1. Turn machine OFF. 2. Turn carrier gas (Air/O 2 ) OFF. 3. Remove and drain tubing and sparger. 4. Remove sparger from spring clips. To clean the sparger: 1. Run warm water through tubing to flush out any solid contamination. 2. Reinstall sp...

Total Organic Carbon Analyzer Maintenance Teledyne Analytical Instruments 63 5.3.12 Pumps If any of the pumps are not pumping (liquid flow is not observed moving up the tubing), check to see if the motor is turning the pump heads and the motor is not binding. Check for proper power and connections t...

Maintenance Model 6750 Teledyne Analytical Instruments 64 3. Remove pump as illustrated to gain access to pump mounting screws. 4. Remove two thumbscrews for pump panel removal. 5. Disconnect Pump Motor Connector.

Total Organic Carbon Analyzer Maintenance Teledyne Analytical Instruments 65 6. Remove 4 pump mounting screws for pump removal. 7. Replace motor and reassemble in reverse step sequence. Figure 5-14: Removing the Pump Note: Actual mounting panel may appear somewhat different but mounting hardware is ...

Total Organic Carbon Analyzer Maintenance Teledyne Analytical Instruments 67 11. Position the other end bell on top and press the end bells together. 12. Be careful not to pinch the tubing. 13. If end bells do not snap tightly together, reload tubing. 14. If necessary, turn key in slot on rotor shaf...

Maintenance Model 6750 Teledyne Analytical Instruments 68 5.3.13.1 S ETTING 100 M V C ONTROL V OLTAGE 1. Using a DC voltmeter, connected to measure DC voltage, connect the black lead to the (-) side of capacitor C1. Located near the lower left corner of the circuit board. Connect the (+) lead to the...

Total Organic Carbon Analyzer Appendix Teledyne Analytical Instruments 69 Appendix A.1Specifications Measurement Methods: TC (Total Carbon) – UV/Persulfate Oxidation TOC (Total Organic Carbon) acidification and sparging to eliminate inorganic carbon interference. Temperature: 25 o C ± 5 o Measuremen...

Appendix Model 6750 Teledyne Analytical Instruments 70 Sample requirements: Inlet Pressure: Atmospheric to 3 psig Flow Rate: 20cc/min. (nom) Drain: Gravity drain vented to atmosphere Suspended Solids: 1,000 microns (max.) Reagents (TOC Mode): Sodium Persulfate: 4.0 gal/month Phosphoric Acid, 10% v/v...

Total Organic Carbon Analyzer Appendix Teledyne Analytical Instruments 71 A.2 Parts Listing Part # Description Image ST16002 ST16003 ST16004 ST16004 ST16005 ST16006 #7013 Pump Head #7014 Pump Head #7015 Pump Head #7016 Pump Head #7017 Pump Head #7018 Pump Head ST18002-1 2 RPM 110V ST18003-1 2 RPM 22...

Appendix Model 6750 Teledyne Analytical Instruments 72 Part # Description Image ST15083 12V DC Power Supply ST13069-1 Distribution Board ST13070-1 Interface Board ST13039 CE Computer ST100001-6 6” NDIR Assembly ST100001-15 15” NDIR Assembly

Total Organic Carbon Analyzer Appendix Teledyne Analytical Instruments 73 Part # Description Image ST100006-1 NDIR Detector Assembly ST100009-6 6” NDIR Cell Assembly ST100009-15 15” NDIR Cell Assembly ST100008-1 NDIR Source Assembly ST17007 ST20001 NDIR O-Ring NDIR Sapphire Window ST20025 Sparger

Appendix Model 6750 Teledyne Analytical Instruments 74 Part # Description Image ST16050 Metering Value ST200026 IR Calibration Adapter ST20009 UV Process Lamp ST13066-1 AC Board Assembly

Total Organic Carbon Analyzer Appendix Teledyne Analytical Instruments 75 Part # Description Image ST200003-1 UV Reactor Assembly ST15000-110V ST15002-220V UV Power Supply ST18050 Flow Switch ST20024T Gas Liquid Separator

Appendix Model 6750 Teledyne Analytical Instruments 76 A.3 Options A.3.1 Option 200008 BENCHMARK (with single point autocal) This option automatically determines analyzer performance to specified limits. It is accomplished by introducing a known chemical standard solution to the analyzer and perform...

Appendix Model 6750 Teledyne Analytical Instruments 78 Since COD & BOD analysis may vary with seasonal influences or other particular conditions, correlations for those conditions would be used at those times. After obtaining a representative amount of TOC/COD/BOD data, the operator enters those...

Total Organic Carbon Analyzer Index Teledyne Analytical Instruments 81 Index accuracy, 12, 39 acid, 6, 9, 11, 14, 19 ACID IN port, 30 acid preparation, 38 air, 70 air gap, 29 air purifier, 13 air supply pressure, 29 alarm, 1, 18, 19 concentration, 25, 69 failsafe, 25 high, 25 latching, 25 low, 25 ma...

Total Organic Carbon Analyzer Index Teledyne Analytical Instruments 83 parameters menu, 32 parts listing, 71 persulfate, 15, 16, 19 persulfate line, 30 pH, 6, 11, 14 phosphoric acid, 38 POC, 5, 7 potassium hydrogen phthalate, 36 power connection, 23 power requirement, 70 power supply, 23 preferred m...