3160 - Trace oxygen analyzer - Teledyne Analytical Instruments

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2 Operational Theory• Electropolished 316L-type stainless steel components.To eliminate oxygen absorption and desorption from the internalwetted surfaces of the sample system components, the sample system isfabricated from electropolished 316L-type stainless steel.• Welding/Metal Gasket-Type Fittings.All of the joints upstream of the Micro-Fuel Cell oxygen sensor areorbitally welded. Orbital welding is used in the sample systemwherever feasible. Orbital welding fuses the electropolished 316Lstainless steel components together, forming a smooth, clean internal(wetted) weld junction and eliminating small spaces around the weldjunction where gases can get trapped or absorbed. All of the weldjunctions in the entire assembly are purged using an inert gas duringwelding to ensure that there is no oxygen contamination.Orbital welding is used where practical; otherwise, conventionalprecision welding is used. For example, conventional precision weldingis used to fuse the tubes to the mounting blocks.• Valves.The analyzer sampling system utilizes three different types of valves.Each valve is selected to prevent oxygen contamination of the sampledepending on its position and purpose in the circuit.Air-Actuated Bellows Valves: These valves are normally closed in thesample system. They are used to control the delivery through the samplesystem of the sample or zero gas. The valve bodies are orbitally welded inthe system and the valve bonnets make a metal-to-metal seal to the body.This valve system eliminates inboard and outboard gas leakage. The valvesare activated (open/closed) by computer-controlled solenoid valves.Metering Valve: The metering valve is used to manually control thegas flow rate to the sensor. The body of the metering valve is orbitallywelded, and the bonnet is sealed to the body with metal O-rings. This type ofvalve eliminates inboard and outboard gas leakage.Solenoid Valves: The solenoid valves control the air flow to the airactivatedbellows valves. The solenoid valves are controlled by themicroprocessor module. When de-energized, the valve outlet is open toambient air, allowing the air-activated bellows valve to close.• Scrubber (optional). See Appendix for details.In systems with a scrubber, oxygen-trapping media is used to removeany trace oxygen from the sample gas. This occurs automatically in thezero menu, where the pneumatic valves leading to the scrubber aretriggered by a certain menu sequence. This process enables sample gas2-4TELEDYNE ANALYTICAL INSTRUMENTS
Operational Theory 2to be used to zero the analyzer, eliminating the need to switch externaltanks.• Overall Design.The design of the sample system minimizes the volume of dead space, whichcan retain residual gas from another route or previous mode of analysis.Figure 2-2: Model 3160 flow schematic.2.1.3 Electronics and Signal ProcessingThe Model 3160 analyzer has an embedded microcomputer, which controls allsignal processing, input/output, and display functions for the analyzer. System poweris supplied from a power supply module designed to be compatible with any internationalpower source.The microcomputer, a liquid crystal display (LCD), and all analog signal processingelectronics are located inside a replaceable control module. A light emittingdiode (LED) display is located outside the control module.TELEDYNE ANALYTICAL INSTRUMENTS2-5
Page 3 and 4: TELEDYNE ANALYTICAL INSTRUMENTSiii
Page 5 and 6: Tabable of Contents (continued)Cali
Page 7 and 8: Introduction 1Introduction1.1 Featu
Page 9 and 10: Introduction 11.2 ComponentsThe ana
Page 11 and 12: Operational Theory 2Operational The
Page 13: Operational Theory 22.1.1 Micro-Fue
Page 17 and 18: Operational Theory 2The analog outp
Page 19 and 20: Installation 3InstallationInstallat
Page 21 and 22: Installation 3DIMENSIONS:InmmREMOVA
Page 23 and 24: Installation 33.5 Micro-Fuel Cell S
Page 25 and 26: Installation 3Figure 3-3: 3160 Rear
Page 27 and 28: Installation 3WARNING: Power cord m
Page 29 and 30: Operations 4Operations4.1 Front Pan
Page 31 and 32: Operations 4When waiting for manual
Page 33 and 34: Operations 4Cold Start-Up1. A cold
Page 35 and 36: Operations 47. If the O 2cell curre
Page 37 and 38: Operations 47. If AUTO was chosen i
Page 39 and 40: Operations 4Select Active Sensor (T
Page 41 and 42: Operations 47. After pressing ACK i
Page 43 and 44: Operations 4Set-Up Alarms1. Enter s
Page 45 and 46: Logger Set-Up1. Enter set-up from t
Page 47 and 48: Set-Up Clock Functions1. Enter set-
Page 49 and 50: Changing Passwords for Remote Monit
Page 51 and 52: Operations 4System Statistics1. Ent
Page 53 and 54: Operations 412. After checking for
Page 55 and 56: Maintenance & Trouboubleshooting 5M
Page 57 and 58: Maintenance & Trouboubleshooting 5S
Page 59 and 60: AppendixAppendixA.1 Specifications(
Page 61 and 62: AppendixA.2 Recommended Spare Parts
Page 63 and 64: AppendixSection IV - Fire and Explo
Page 65 and 66:
AppendixEye Protection:Hand Protect
Page 67 and 68:
AppendixSection III - Physical Haza
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3160 - Trace oxygen analyzer - Teledyne Analytical Instruments

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