Manuals / Teledyne / Household Appliance / Carbon Monoxide Alarm

Teledyne 6750 5.3.13.1SETTING 100 MV CONTROL VOLTAGE, 5.3.13.2SETTING OF 4-20 MA OUTPUT

Models: 6750

1 96

Download 96 pages 40.67 Kb

Page 80

Maintenance	Model 6750

5.3.13.1SETTING 100 MV CONTROL VOLTAGE

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 top of resistor R19, located slightly to the left of the center of the circuit board. Note the mV reading (typically no greater than 3 mV).

2.Next, position the Analog A cursor to Max position. Note the mV reading from the top of R19. Use pot R21 located slightly to the right of the center of the circuit board to adjust the mV reading 100 mV higher than minimum reading. Reposition Analog A to Min and re- check Min and Max mV readings.

5.3.13.2SETTING OF 4-20MA OUTPUT

1.Using a digital voltmeter connected to read mA, connect the black lead to #1 4-20mA out (-) and the red lead to #1 4-20 mA out (+).

2.Adjust R41 for 4mA when Analog A is at minimum. Adjust R42 for 20mA when Analog A is at Maximum. Repeat Analog Min/Max until 4-20 mA is achieved.

Teledyne Analytical Instruments

68

Image 80

Teledyne 6750 operating instructions 5.3.13.1SETTING 100 MV CONTROL VOLTAGE, 5.3.13.2SETTING OF 4-20 MA OUTPUT

Contents

DANGER OPERATING INSTRUCTIONS FORModel Total Organic Carbon AnalyzerWarranty ModelTeledyne Analytical Instruments Important NoticeSpecific Model Information Instrument Serial Number: _______________________Total Organic Carbon Analyzer Teledyne Analytical InstrumentsSafety Messages No SymbolThis 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 Table of Contents Setup and Operation MaintenanceTotal Organic Carbon Analyzer Teledyne Analytical InstrumentsModel AppendixIndex Teledyne Analytical InstrumentsList of Figures Figure 5-6:DC Power Supply Module Table 4-1:Preparation of Standards TOC/TIC List of TablesTable 5-1 Troubleshooting COMBUSTIBLE GAS USAGE DANGER1.1 Main Features of the Analyzer Introduction1.4 Intended Use of the Analyzer 1.2Options1.3Typical Applications 1.5 Operator Interface Teledyne Analytical Instruments IntroductionModel 2.2 Background Theory of Operation2.1 Overview Figure 2-1:NPOC or TOC – Direct Method Figure 2-2:TOC – True MethodIn conclusion Figure 2-3 TOC Measurement Basics Figure 2-4:UV/Persulfate MethodTheory of Operation Model2.3 The UV/Heated Persulfate Method of Analysis Teledyne Analytical Instruments Theory of OperationModel 2.4 Subsystems Principles of Operation 2.4.1 Sample HandlingFigure 2-6:Sample Handling for TOC -Direct Figure 2-7:Sample Handling TOC-True 2.4.2.2GAS PHASE SAMPLE HANDLINGTOC analysis in a continuous, on-lineTOC analyzer 2.4.2Inorganic Carbon Removal/AnalysisFigure 2-8:Relationship Between TIC and pH 2.4.3 OxidationFigure 2-9:Oxidation Reactions Figure 5-10shows UV oxidation methodology2.4.4 NDIR CO2 Gas Detection Figure 2-10:Model 6750 NDIR Unit•Benchmark/Auto-Validation •Auto-Calibration 2.4.5.2AUTO-CALIBRATION 2.4.5.3AUTO-CLEANING2.4.5.1BENCHMARK/AUTO-VALIDATION Teledyne Analytical Instruments Theory of OperationModel 3.2 Mounting the Analyzer Installation3.1Unpacking the Analyzer Figure 3-1:Analyzer Dimensions Figure 3-2:Required Door ClearanceInstallation Model3.3.1 Power Connection 3.3 Electrical Connections3.3.2 Analog Outputs Figure 3-4:Electrical Connections to the Model3.3.3 Alarm Connections 3.4 Gas/liquid Connections3.3.4RS-232Serial Connection 3.4.1 Liquid Connections3.4.2 Gas Connections •Reagents •Drain sThe gas connections include •Sample Gas •Carrier Gas •VentNDIR Vent gas exhaust 3.5 Checking the SystemGas Carrier Connections Teledyne Analytical Instruments InstallationModel Setup and Operation 4.1Analyzer StartupFigure4-1:Drain Connections I. water container4.2.1 Run Mode 4.2 MenusFigure 4-2:Gas Liquid Separator D. I. Filling 4.2.2 Parameter Menu 4.2.3 Alarm Settings 4.2.4 Stream Sequencer 4.2.5 D/DBPR 4.3Detailed Calibration Procedures Table 4-1:Preparation of Standards TOC/TIC Total Organic Carbon Analyzer5. Acid Preparation b.Select TOC The following screen appears 4.4 Operation Figure 4-3:The RUN Screen4.5 Shutdown 4.6 Historical DataUsing the Scroll Bar, select the data to be viewed Maintenance 5.1 Compupter-aidedTesting5.2 Troubleshooting Table 5-1:Troubleshooting5.3 Module Service 5.3.1NDIR Gas CalibrationIR Calibration Figure 5-1:Disconnecting Tubing from ReactorFigure 5-2:IR Calibration Adapter P/N ST20026 Figure 5-3 Installing Calibration Adapter 5.3.2 NDIR ServiceFigure 5-4:Removing the NDIR Unit P/N ST36000 To Replace the NDIR Unit 1.Turn off power2.Remove inlet tube from NDIR Assembly 3.Remove vent tube from NDIR AssemblyMaintenance Slide out and remove Source AssemblyTotal Organic Carbon Analyzer Teledyne Analytical InstrumentsMaintenance • Remove IR Cell AssemblyModel Teledyne Analytical InstrumentsInstall IR Cell • Install Source Assembly end pieceDetector Assembly left To Reassemble•Install insulation. Replace assembly as before squeeze nutsRecommend Use alternate tightening sequence5.3.3 Master Interface Board P/N ST13042-1 Figure 5-5:Removing the Master Interface Board5.3.4 D. C. Power Supply Figure 5-6:DC Power Supply Module5.3.5 CE Computer P/N Figure 5-7 Replacing CE ComputerFigure 5-8:UV Lamp Replacement 5.3.6 UV Lamp P/N ST200095.3.7UV Reactor Assembly P/N ST20003-1 Figure 5-9:Removing the UV Reactor Assembly5.3.8UV Power Supply Figure 5-10:Removing the UV Power Supply 5.3.9 Mass Flow Controller P/N ST18001AFigure 5-11:Mass Flow Controller 5.3.10 Metering Valve P/N ST16050Figure 5-12:Metering Valve 5.3.11 Sparger P/N ST20025Figure 5-13:Sparger To clean the sparger2.Reinstall sparger in reverse order 1.Turn machine OFF 2.Turn carrier gas Air/O2 OFF5.3.12 Pumps 1. Turn main power OFFMaintenance 5. Disconnect Pump Motor ConnectorModel Teledyne Analytical InstrumentsFigure 5-14:Removing the Pump 4.Hold tubing with thumb Figure 5-15:Pump Head Tubing Replacement 5.3.134-20mA Adjustment Procedure5.3.13.1SETTING 100 MV CONTROL VOLTAGE 5.3.13.2SETTING OF 4-20 MA OUTPUTPerformance A.1SpecificationsAppendix Sample requirements Facility requirementsA.2 Parts Listing Part #Description ImageST15083 ST100006-1 AC Board Assembly AppendixModel Teledyne Analytical InstrumentsST200003-1 A.3 Options A.3.1 OptionA.3.2 Option A.3.3 OptionA.3.4 Option A.3.5 OptionA.3.6 Option A.3.7 OptionSince COD & BOD analysis may vary with seasonal influences or other particular conditions, correlations for those conditions would be used at those times A.4 AS-BUILTDrawings Total Organic Carbon AnalyzerAppendix Teledyne Analytical InstrumentsTeledyne Analytical Instruments AppendixModel Index enclosure, pump mounting screw, UV/Heated Persulfate Oxidation