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Teledyne Span Gas, Recommended Spare Parts List, Thermal Conductivity Analyzer, Model 212R

Models: 212R

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Thermal Conductivity Analyzer	Model 212R

7.4.3Span Gas.

Containing an equivalent impurity. Again, the span gas must be procured fromasupplierwhowillcertifyitscomposition. Therangeswitchmustbein range 3 when the span gas is introduced.

IMPORTANT: The accuracy of the analysis is directly related to the users knowledge of the span gas composition.

Reference and Sample Flowrates 0.3 SCFH

Bypass Flowrate 3.0 SCFH

NOTE: Cylinder and sample stream pressure settings must be adjusted in order to maintain the above flowrates when switching from one sample to another.

	RECOMMENDED SPARE PARTS LIST
QUANTITY PART NO.		DESCRIPTION
1	A-6251	MeasuringCellBlockAssembly
1	A-6981	ProportionalTemperatureControl
1	F-45	SampleFlowmeterTube
1	F-22	SampleFlowmeterBypassTube

A minimum charge applies to all spare part orders.

IMPORTANT: Orders for replacement parts should include the part number, the model and serial number of the analyzer in which they are to be used.

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Teledyne instruction manual Span Gas, Recommended Spare Parts List, Thermal Conductivity Analyzer, Model 212R

Contents

Teledyne Analytical Instruments Thermal Conductivity AnalyzerModel 212R MODEL 212RModel 212R WarrantyThermal Conductivity Analyzer Teledyne Analytical InstrumentsIntroduction Table of ContentsInstallation StartupCalibration Data Periodic MaintenanceTroubleshooting AppendixThermal Conductivity Analyzer 1. INTRODUCTION 1.1 Method of AnalysisThe 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 gases Model 212R1.3 Stability 1.5 Physical Configuration1.2 Sensitivity 1.4 Special ConsiderationThermal Conductivity Analyzer 2. INSTALLATION 2.1 Location2.2 Electrical Requirements and Connections Model 212R2.2.3 Regulating Transformer 2.2.1 Primary Power2.2.2 Signal Output Thermal Conductivity AnalyzerThermal Conductivity Analyzer 2.2.4. Completion and Inspection2.3 Gas Requirements and Connections Model 212R2.3.3 Span Gas 2.3.1 Reference Gas2.3.2 Zero Gas Thermal Conductivity Analyzer2.3.5 Sample Pressure 2.3.4 Installation of Cylinder Supplies2.3.6 Interconnecting Lines Thermal Conductivity AnalyzerThermal Conductivity Analyzer 2.3.7 Vent Lines3.0 STARTUP 3.1 Preliminary Model 212R3.4 Warmup 3.2 Reference Gas Flow3.3 Zero Gas Flow 3.5 Zero StandardizationThermal Conductivity Analyzer 3.6 Span Standardization3.7 Bypass Model 212RThermal Conductivity Analyzer 3.8Sample Mode4. ROUTINE OPERATION 4.1 Flowrates Model 212RThermal Conductivity Analyzer 4.2 Supporting Gas Supplies4.3 Standardization Model 212R6.1.1 Electrical Checks 5. PERIODIC MAINTENANCE 5.1 Heater Fan6. TROUBLE SHOOTING 6.1 Preliminary Thermal Conductivity Analyzer6.2 Loss of Zero Control 6.1.2 Sampling System Checks6.1.3 Summary of Preliminary Checks Thermal Conductivity AnalyzerModel 212R 6.2.1 Dynamic Balance ProcedureThermal Conductivity Analyzer 2 Set the ZERO potentiometer toThermal Conductivity Analyzer 6.3 Correct Operation5 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 adjustment Model 212RThermal Conductivity Analyzer 6.4 Incorrect Operation6.4.1 Analyzer Leak Model 212RThermal Conductivity Analyzer 6.4.2 Temperature Control CheckCheckaspreviouslystated,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. Usethefollowingprocedure Model 212R5 points outlined in section Thermal Conductivity AnalyzerModel 212R Teledyne Analytical InstrumentsRange Switch Position #2 7.0 CALIBRATION DATA FOR MODEL 212R SERIAL NUMBER 7.1 RangesRangeSwitchPosition#1 Range Switch Position #37.4.1 Reference Gas 7.2 Output Signal7.3 Span Setting 7.4 Recommended Accessory Gases 7.4.2 Zero GasThermal Conductivity Analyzer RECOMMENDED SPARE PARTS LIST7.4.3 Span Gas Model 212RTELEDYNE Analytical Instruments Replacement Parts Order InformationDrawing List Thermal Conductivity AnalyzerThermal Conductivity Analyzer APPENDIX SpecificationsPower Model 212R