Emerson ib-106-340cdr Also, do not get any cement onto the flame arrestor element

Page 48

Instruction Manual

IB-106-340CDR Original Issue January, 2002

Hazardous Area Oxymitter DR

M5-0.8 x 5 mm

LOCKING SET SCREW (USE 2.5 mm HEX KEY)

THREADED

SPANNER

PROBE FLANGE

WRENCH

CERAMIC

DIFFUSION

ELEMENT

Do not get cement on ceramic diffu- sion element except where it touches the hub. Any cement on ceramic diffu- sion element blocks airflow through element. Wiping wet cement off of ce- ramic only forces cement into pores.

FLAME ARRESTER HUB

M6-1 x 6 mm

SETSCREW (USE 3 mm

HEX KEY)

Also, do not get any cement onto the flame arrestor element.

9. Thoroughly mix cement and insert tip

of squeeze bottle into cement port. Tilt

CEMENT

PORTCEMENT

FILLET

VEE

DEFLECTOR

27540008

Figure 4-5. Ceramic Diffusion Element

Replacement

3.On systems equipped with abrasive shield, remove dual dust seal gaskets.

4.Use spanner wrenches from Probe Disassembly Kit, Table 7-1,to turn hub free from retainer.

5.Put hub in vise. Break out old ceramic diffusion element with chisel along ce- ment line. Use a 9.5 mm (3/8 in.) pin punch and clean fillet from the cement port.

6.Break out remaining ceramic diffusion element by tapping lightly around hub with hammer. Clean grooves with pointed tool if necessary.

7.Replace ceramic diffusion element us- ing the ceramic diffusion element re- placement kit in Table 7-1.This consists of a diffusion element, ce- ment, setscrews, anti-seize compound, and instructions.

8.Test fit replacement ceramic diffusion element to be sure seat is clean.

bottle and squeeze while simultane-

ously turning ceramic diffusion element

into seat. Do not get any cement on

upper part of ceramic diffusion ele-

ment. Ensure complete penetration of

cement around 3 grooves in hub. Ce-

ment should extrude from opposite

hole. Wipe excess material back into

holes and wipe top fillet of cement to

form a uniform fillet. (A cotton swab is

useful for this.) Clean any excess ce-

ment from hub with water.

10. Allow filter to dry at room temperature

overnight or 1 to 2 hours at 93°C

(200°F).

11. Wipe a heavy layer of anti-seize com-

pound onto the threads and mating

surfaces of the flame arrestor, diffusion

hub, and probe tube.

12. Assemble flame arrestor and diffusion

hub with two pin spanner wrenches.

Torque to 14 N·m (10 ft-lbs). Secure

with hub retaining setscrew.

13. On systems equipped with abrasive

shield, install dust seal gaskets with

joints 180° apart.

14. Reinstall vee deflector, orienting apex

toward gas flow. Apply anti-seize com-

pound to setscrews and tighten with

hex wrench.

15. Reinstall probe on stack flange.

4-8 Maintenance and Service

Rosemount Analytical Inc. A Division of Emerson Process Management

Page 47 Page 49
Image 48
Page 47 Page 49
Contents Oxymitter DR Essential Instructions Table of Contents Hazardous Area Oxymitter DRList of Illustrations List of TablesPreface DefinitionsHazardous Area Oxymitter DR Section I. Identification Section II. Physical Data Section V. Health Hazard Data Section VI. Reactivity Data Section VII. Spill or Leak Procedures Section IX. Special Precautions Hazardous Area Oxymitter DR Technical Support Hotline Section Description and Specifications Component Checklist of Typical System Package ContentsSystem Overview System Configuration System FeaturesTypical System Installation Abrasive Shield Assembly Flame Arrestor Ceramic Diffusion AssemblyFlame Arrestor Snubber Diffusion Assembly Upgrading the Hazardous Area Oxymitter DRView a View B Specifications Product Matrix Code Sensing Probe TypeCalibration Components Part Number DescriptionSection Installation Mechanical InstallationInstallation Selecting LocationHazardous Area Oxymitter DR Installation Hazardous Area Oxymitter DR with Abrasive Shield Mounting Plate Outline With Abrasive Shield Without Abrasive ShieldOrienting the Optional Vee Deflector Electrical Installation Connect O2 and Heater Thermocouple Signals Pneumatic InstallationSystem Setup OverviewSetup 132 Analog ElectronicsWestinghouse Model 218A ELEC- Tronics Setup G02 G04Westinghouse Model TC200 VERI- Trim Electronics Setup 11. Main PCB Model TC200 Eprom Replacement Westinghouse Model 132 Digital Electronics Setup 12. Main PCB Model 132 Eprom ReplacementWorld Class 3000 Intelligent Field Transmitter Setup 14. Heater Power Supply HPS 3000 Jumper ConfigurationYokogawa ZA8C and AV8C Converter Electronics Setup 15. DR Probe Wired to the ZA8C or a V8C ConverterSection Startup and Operation GeneralHazardous Area Oxymitter DR Section Maintenance and Service Hazardous Area Oxymitter DR ReplacementOverview CalibrationHazardous Area Oxymitter DR Exploded View Install Terminal Block ReplacementEntire Probe Replacement Heater Strut ReplacementHeater Strut Assembly Cell Replacement22220028 Ceramic Diffusion Element Replacement Replacement ProcedureThis refers to the ceramic diffusion element only General Ceramic Diffusion Element Replacement Also, do not get any cement onto the flame arrestor elementTermination Housing Wiring Termination Housing ConnectionsHazardous Area Oxymitter DR Section Troubleshooting Probe TroubleshootingSymptom Check Fault Remedy Hazardous Area Oxymitter DR Section Return of Material Equipment ReturnHazardous Area Oxymitter DR Section Replacement Parts Replacement Parts for ProbeCell Replacement Kit Section Optional Accessories BY-PASS PackagesO2 Calibration GAS Sequencer Hazardous Area Oxymitter DR Section Appendices Appendix A. Updating DR Oxymitter to Full OxymitterHazardous Area Oxymitter DR Upgrade Procedure Figure A-1. Component ReplacementFigure A-2. Terminal Block and Wiring Section Index Hazardous Area Oxymitter DR Warranty Hazardous Area Oxymitter DR Serial no Order no
Top Page Image Contents