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Teledyne CALIBRATION DATA FOR MODEL 212R SERIAL NUMBER 7.1 Ranges, Model 212R, ppm N 2 in H

Models: 212R

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7.0CALIBRATION DATA FOR MODEL 212R SERIAL NUMBER: 195929

Thermal Conductivity Analyzer	Model 212R

CAUTION: Do not touch the thermistor probe with the iron. The end of the probe is tied and taped to the sample tubing below the cell cover. If the meter reading suddenly drops to zero, remove the soldering iron immediately. After the area around the thermistor cools, the voltage across the heater resistors should again climb to 47 volts. Such action indicates a properly functioning heater circuit. If the meter stays in the 47 volt region, the circuit card will have to be replaced.

7.0CALIBRATION DATA FOR MODEL 212R SERIAL NUMBER: 195929

7.1Ranges.

The ranges of the analyzer are:

RangeSwitchPosition#1:	0-50,000 ppm N2 in H2

Range Switch Position #2:	0-5000 ppm N2 in H2

Range Switch Position #3:	0-500 ppm N2 in H2

24	Teledyne Analytical Instruments

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Teledyne CALIBRATION DATA FOR MODEL 212R SERIAL NUMBER 7.1 Ranges, Thermal Conductivity Analyzer, Model 212R

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

7.0CALIBRATION DATA FOR MODEL 212R SERIAL NUMBER: 195929

The ranges of the analyzer are:

RangeSwitchPosition#1:

0-50,000 ppm N2 in H2

Range Switch Position #2:

0-5000 ppm N2 in H2

Range Switch Position #3:

0-500 ppm N2 in H2