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Teledyne Thermal Conductivity Analyzer, Model 212R, APPENDIX Specifications, Operating, Sample

Models: 212R

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APPENDIX

Thermal Conductivity Analyzer	Model 212R

APPENDIX

Specifications:

Ranges: Three decade ranges: Minimum Full scale(ppm) 20 ppm Hydrogen balance Argon

25 ppm Hydrogen balance Nitrogen, Air

100 ppm Nitrogen balance Argon, Helium

100ppmHeliumbalanceAir

150 ppm Nitrogen, Carbon Monoxide balance Hydrogen

200 ppm Oxygen balance Argon

Range ID: 3 range ID contacts

Local Range ID LED’S

Detector: Thermal conductivity sensor

Signal Output: 0-1VDC negative ground 4-20maDC Isolated ground

Accuracy: ±2%fullscaleformost binarymixture at constant temperature. ± 5% of Full Scale over operating temperature (once temperatureequilibriumhasbeen achieved)

Operating

Temperature: 20 – 30°C (68° F to 85° F)

Sample

Requirement: Sample:0.3SCFH

Reference:0.1SCFH

Display: DigitalLEDreadout(3½Digit)

Mounting: Flushpanelmount.

Response Time: 90% of full scale less then 60 seconds.

Formostapplication.

Stability: Less then 2% full scale drift over 24 hours

Power

requirement: 110VAC, 50/60Hz (220VAC optional)

28	Teledyne Analytical Instruments

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Teledyne instruction manual Thermal Conductivity Analyzer, Model 212R, APPENDIX Specifications, Operating, Sample, Power

Contents

Thermal Conductivity Analyzer Model 212RTeledyne Analytical Instruments MODEL 212RWarranty Thermal Conductivity AnalyzerModel 212R Teledyne Analytical InstrumentsTable of Contents InstallationIntroduction StartupPeriodic Maintenance TroubleshootingCalibration Data Appendix1. INTRODUCTION 1.1 Method of Analysis The Model 212R compares the thermal conductivity of a sample gas to that of a fixed composition reference gas and produces an electrical output signal that is calibrated to represent the difference between the two gasesThermal Conductivity Analyzer Model 212R1.5 Physical Configuration 1.2 Sensitivity1.3 Stability 1.4 Special Consideration2. INSTALLATION 2.1 Location 2.2 Electrical Requirements and ConnectionsThermal Conductivity Analyzer Model 212R2.2.1 Primary Power 2.2.2 Signal Output2.2.3 Regulating Transformer Thermal Conductivity Analyzer2.2.4. Completion and Inspection 2.3 Gas Requirements and ConnectionsThermal Conductivity Analyzer Model 212R2.3.1 Reference Gas 2.3.2 Zero Gas2.3.3 Span Gas Thermal Conductivity Analyzer2.3.4 Installation of Cylinder Supplies 2.3.6 Interconnecting Lines2.3.5 Sample Pressure Thermal Conductivity Analyzer2.3.7 Vent Lines 3.0 STARTUP 3.1 PreliminaryThermal Conductivity Analyzer Model 212R3.2 Reference Gas Flow 3.3 Zero Gas Flow3.4 Warmup 3.5 Zero Standardization3.6 Span Standardization 3.7 BypassThermal Conductivity Analyzer Model 212R3.8Sample Mode 4. ROUTINE OPERATION 4.1 FlowratesThermal Conductivity Analyzer Model 212R4.2 Supporting Gas Supplies 4.3 StandardizationThermal Conductivity Analyzer Model 212R5. PERIODIC MAINTENANCE 5.1 Heater Fan 6. TROUBLE SHOOTING 6.1 Preliminary6.1.1 Electrical Checks Thermal Conductivity Analyzer6.1.2 Sampling System Checks 6.1.3 Summary of Preliminary Checks6.2 Loss of Zero Control Thermal Conductivity Analyzer6.2.1 Dynamic Balance Procedure Thermal Conductivity AnalyzerModel 212R 2 Set the ZERO potentiometer to6.3 Correct Operation 5 Using a screwdriver that has a shaft diameter of 1/8” and a shaft length of at least 6”, turn the “Reactive” balance adjustment all the way counterclockwise CCW until the potentiometer stop point is reached. Turn the adjustment back clockwise CW 5 full turns to center the adjustmentThermal Conductivity Analyzer Model 212R6.4 Incorrect Operation 6.4.1 Analyzer LeakThermal Conductivity Analyzer Model 212R6.4.2 Temperature Control Check Checkaspreviouslystated,theanalyzersentiresamplingsystemhasbeen checked under pressure with a leak detector. However, if the external system checksoutandtheinstrumentisdisplayingalargediurnaloruni-directionaldrift, the interior sampling system should be checked for leaks. Do not open the analyzerinnerdoor. UsethefollowingprocedureThermal Conductivity Analyzer Model 212RThermal Conductivity Analyzer Model 212R5 points outlined in section Teledyne Analytical Instruments7.0 CALIBRATION DATA FOR MODEL 212R SERIAL NUMBER 7.1 Ranges RangeSwitchPosition#1Range Switch Position #2 Range Switch Position #37.2 Output Signal 7.3 Span Setting 7.4 Recommended Accessory Gases7.4.1 Reference Gas 7.4.2 Zero GasRECOMMENDED SPARE PARTS LIST 7.4.3 Span GasThermal Conductivity Analyzer Model 212RReplacement Parts Order Information Drawing ListTELEDYNE Analytical Instruments Thermal Conductivity AnalyzerAPPENDIX Specifications PowerThermal Conductivity Analyzer Model 212R