Emerson 3000 manual Probe Junction BOX, Cable Assembly, Probe Options, Abrasive Shield Assembly

Page 39

World Class 3000

Instruction Manual

Appendix A Rev. 3.6

 

July 1998

A

 

PROBE

JUNCTION BOX

TERMINALCOVER STRIP

During calibration, two gases of different known oxygen concentrations are injected one at a time through the calibration gas fitting. Stainless steel tubing delivers this gas to the process side of the cell. In a healthy cell, the difference in oxygen pressure from the process side to the reference side of the cell will cause a millivolt output proportional to the difference in oxygen levels. The electronics unit can use the two millivolt outputs caused by the two calibration gases for either automatic or semi-automatic calibration.

CALIBRATION

GAS FITTING

REFERENCE

AIR FITTING

27270016

Figure A-6. Probe Junction Box

A-4 PROBE JUNCTION BOX

The probe junction box, Figure A-6,is positioned at the external end of the probe and contains a terminal strip for electrical connections and fittings for reference air and calibration gases. Fittings are for 0.250 inch stainless steel tubing on American units and

6 mm on European units. The calibration fitting has a seal cap which must remain in place except during calibration. A tubing fitting is also supplied to be used with the calibration gas supply during calibration.

If the calibration gas bottles will be permanently hooked up to the probe, a manual block valve is required at the probe (between the calibration fitting and the gas line) to prevent condensation of flue gas down the calibration gas line.

During operation and calibration, reference air is supplied through the reference air fitting to the reference side of the cell. This gives the system a known quantity of oxygen with which to compare the oxygen level in the process gas. Though ambient air can be used for this purpose, accuracy can only be assured if a reference air set is used.

Do not attempt to remove a process gas sample through either gas fitting. Hot gases from the process would damage gas hoses in the probe junction box.

A-5 CABLE ASSEMBLY

The system uses a 7-conductor cable to connect the probe to the electronics package. Standard length for this cable is 20 feet (6 m), but lengths up to 150 feet (45 m) are available. The seven conductors include one shielded pair of wires for the cell millivolt signal, one shielded pair of type K wires for the thermocouple, and three individual 16-gauge wires for the heater and for ground. The assembled conductors are wrapped by a type K TeflonTM jacket and braided stainless steel shield. The TeflonTM and stainless steel jacketing is suitable for high temperature use. All metal shields are isolated at the probe end and connect by drain wires to ground at the electronics.

A-6 PROBE OPTIONS

a.Abrasive Shield Assembly

The abrasive shield assembly, Figure A-7,is a stainless-steel tube that surrounds the probe assembly. The shield protects the probe against particle abrasion and corrosive condensations, provides a guide for ease of insertion, and acts as a probe position support, especially for longer length probes. The abrasive shield assembly uses a modified diffusor and vee deflector assembly, fitted with dual dust seal packing.

Rosemount Analytical Inc. A Division of Emerson Process Management

Appendices A-5

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Contents World Class Essential Instructions Effective June, 1996 Rev Highlights of ChangesEffective October, 1995 Rev SummaryEffective February, 1998 Rev PageSummary Effective May, 1997 Rev PageSummaryWorld Class Table of ContentsTypical System Package List of IllustrationsDefinitions PrefaceWorld Class Component Checklist of Typical System Package Contents Section DescriptionOverview Features System ConfigurationTypical System Installation Probe Heater Power SupplyProbe Head Wiring Existing ElectronicsOxygen Analyzer Probe Section InstallationEither make necessary repairs or install InstallationProbe Installation Sheet 1 Probe Installation Sheet 2 Probe Installation Sheet 3 Probe Installation Sheet 4 Probe Installation Sheet 5 Orienting the Optional Vee Deflector Service RequiredElectrical Installation of Heater Power Supply Electrical Connections Heater Power Supply InstallationSelection JM1 Fuses JM2 World Class Electronics Setup Section SetupG02 G04 Model 218A Electronics SetupModel TC200 Veritrim Electronics Setup Eprom ReplacementHeater Set Point Adjustment Main PCB Model 132 Eprom Replacement Model 132 Digital Electronics SetupSystem Troubleshooting Section TroubleshootingWorld Class Section Return of Material World Class Section Appendices World Class Figure A-2. Main Probe Components Oxygen Analyzer Probe GeneralTable A-1. Specifications for Oxygen Analyzing Equipment.1 Snubber Diffusion Assembly Probe Assembly ExteriorCell and Flange Assembly Probe Tube AssemblyCell General Inner Probe AssemblyProbe Options Cable AssemblyAbrasive Shield Assembly Probe Junction BOXView a Ceramic Diffusion Assembly Figure A-8. Ceramic Diffusion/Dust Seal AssemblyProbe Mounting Jacket Options Bypass Probe OptionsFigure A-13. Bypass Probe Option Sheet 1 Figure A-13. Bypass Probe Option Sheet 2 Group Code Description Extended Temperature By-Pass Arrangements 2400 F 1300 COverview Probe TroubleshootingProbe Faults Table A-2. Fault Finding Symptom Check RemedyWorld Class Figure A-14. Flowchart of Probe Related Problems, #1 Figure A-15. Flowchart of Probe Related Problems, #2 Probe Recalibration Cell ReplacementFigure A-16. Cell Wiring Connection Element Replacement Optional Ceramic DiffusionGeneral World Class Figure A-19. Probe Junction Box Mechanical Connections Replacement of Contact Thermocouple AssemblyContact Heater Screws Not Shown Thermocoupler World Class Figure A-22. Oxygen Analyzer Probe, Cross-Sectional View Figure A-23. High Temperature Corrosive Environment Kit Replacement Parts Figure A-10 4841B03G02 Stainless Steel Diffuser Assembly Appendix B, REV HPS 3000 Heater Power Supply Description Side FrontTheory of Operation Table B-1. Specifications for Heater Power SupplyOverview HPS 3000 Troubleshooting HPS 3000 TroubleshootingFigure B-4. HPS Troubleshooting Flowchart, #1 SymptomFigure B-5. HPS Troubleshooting Flowchart, #2 Figure B-6. HPS Troubleshooting Flowchart, #3 Fuse Replacement Transformer ReplacementMother Board Replacement Daughter Board Replacement Figure B-7. Heater Power Supply, Exploded View Part Number Description Table B-2. Replacement Parts for Heater Power SupplyWorld Class Section Index World Class Warranty World Class 3000 Probe Serial No Order No HPS
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3000 specifications

The Emerson 3000 is a cutting-edge control system designed to enhance the efficiency, reliability, and precision of industrial operations. Employed across various sectors such as oil and gas, pharmaceutical, food and beverage, and power generation, the Emerson 3000 has gained recognition for its robustness and versatility.

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In summary, the Emerson 3000 represents a fusion of advanced process control, modular design, IoT connectivity, robust cybersecurity, and user-centric interface, making it an ideal choice for industries seeking to enhance their operational performance while adapting to ever-evolving technological landscapes.
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