Emerson OCX 8800

Instruction Manual

IM-106-880, Rev 1.0

January 2007

OCX 8800

7-26

Figure 7-20. Removal/Installation of

Electronics Housing Components

Remove Electronics Stack

1. Unplug power cable, signal cable, and solenoid lead connectors from

terminals of electronics stack (5, Figure 7-20).

2. Remove two screws (13) and lockwashers (14).

3. Remove electronics stack (5).

37390037

1. Screw

2. Locking Clip

3. Cover

4. O-ring

5. Electronics Stack

6. Flash PROM

7. Screw

8. LOI Module

9. LOI Board

10. LOI Connector

11. Screw

12. Lockwasher

13. Screw

14. Lockwasher

15. Solenoid Valve (3 way)

16. Solenoid Valve

Analytical

Contents

Main Page Page Page Table of Contents Page OCX 8800 Oxygen/Combustibles Transmitter ESSENTIAL INSTRUCTIONS OCX 8800 PREFACE DEFINITIONS SYMBOLS Instruction Manual Section 1 Description and Specifications COMPONENT CHECKLIST SYSTEM OVERVIEW IM-106-880, Rev 1.0 Figure 1-1. Typical System Package Page Page Page Figure 1-2. System Operation Diagram Handling the OCX 8800 SENSOR HOUSING ELECTRONICS HOUSING Page Figure 1-4. Typical System Installation OCX 8800 with INTEGRAL ELECTRONICS Instruction Manual SPECIFICATIONS Page Table 1-1. Product Matrix - Hazardous Area OCX 8800 January 2007 Table 1-2. Accessories Section 2 Installation MECHANICAL Page Figure 2-1. Installation, OCX 8800 BOTTOM VIEW Page Page Instruction Manual ELECTRICAL Page Figure 2-4. Line Voltage, Earth, and 4-20 mA Connections AOUT1+ (1/2 SIZE) { { PNEUMATIC Figure 2-5. Pneumatic Installation, OCX with Reference Air Set (without Autocalibration) ( ( ( ( Page Figure 2-7. Piping Arrangement, Blowback with Autocalibration ( CAUTION Figure 2-8. Piping Arrangement, Blowback without Autocalibration ( CAUTION ( INITIAL STARTUP Instruction Manual Section 3 Configuration and Startup VERIFY INSTALLATION Page Instruction Manual Figure 3-1. OCX 8800 Defaults INITIAL POWER UP SET TEST GAS VALUES OCX 8800 RESET PROCEDURE Instruction Manual Section 4 Using the LOI OVERVIEW DISPLAY ORIENTATION LOI CONTROLS Overview LOI Key Functions LK AL Instruction Manual LOI Status Codes LOI MENU TREE 4-5 Figure 4-4. LOI Menu Tree (Sheet 2 of 4) 4-6 Figure 4-4. LOI Menu Tree (Sheet 3 of 4) 4-7 Figure 4-4. LOI Menu Tree (Sheet 4 of 4) D/A TRIM PROCEDURES Page Page Instruction Manual Section 5 Using HART Communications OVERVIEW HART COMMUNICATOR SIGNAL CONNECTIONS Page Page HART COMMUNICATOR PC CONNECTIONS Instruction Manual 5-5 HART MENU TREE is specific to OCX 8800 applications. Figure 5-3. HART Menu Tree (Sheet 1 of 4) 5-6 Figure 5-3. HART Menu Tree (Sheet 2 of 4) Status group 3 5-7 Figure 5-3. HART Menu Tree (Sheet 3 of 4) 5-8 Figure 5-3. HART Menu Tree (Sheet 4 of 4) Instruction Manual D/A TRIM PROCEDURES Page Instruction Manual Section 6 Calibration OVERVIEW FULLY AUTOMATIC CALIBRATION Page Page OPERATOR - INITIATED AUTOCALIBRATION MANUAL CALIBRATION Page Page Page Page Page Page Instruction Manual Section 7 Maintenance and Service OVERVIEW OCX 8800 REMOVAL AND INSTALLATION OCX with Integral Electronics Figure 7-2. Electronics Housing Terminal Blocks AOUT1+ (1/2 SIZE) { { Page Page Figure 7-3. Removal of O2 Cell and Heater Strut Assembly Figure 7-4. O2 Cell, Thermocouple, and Heater Connections + + ++ + Page Page OCX 8800 Page Page Page Page Instruction Manual Sensor Housing Assembly COe SENSOR ASSEMBLY THERMOCOUPLE Page OCX 8800 Page Page Page Figure 7-18. Installation of O2 Cell and Heater Strut Assembly Figure 7-19. O2 Cell, Thermocouple, and Heater Connections + + ++ + Page Instruction Manual REPAIR ELECTRONICS HOUSING Electronics Housing Disassembly Page Page Electronics Housing Assembly Figure 7-23. Electronics Housing Cable Connections ELECTRONICS HOUSING TOPVIEW Instruction Manual REPLACE TUBE FITTINGS Remove Tube Fittings Install Tube Fittings Instruction Manual Section 8 Troubleshooting OVERVIEW Grounding Electrical Noise Electrostatic Discharge Total Power Loss DIAGNOSTIC ALARMS Instruction Manual FAULT ISOLATION IM-106-880, Rev 1.0 SB Temp Hi (Sample block heater temperature high, > 190C) O2 TC Open (Oxygen sensor heater thermocouple open) COe TC Open (Combustibles sensor heater thermocouple open) SB TC Open (Sample block heater thermocouple open) O2 TC Shorted (Oxygen sensor heater thermocouple shorted) COe TC Shorted (Combustibles sensor heater thermocouple shorted) SB TC Shorted (Sample block heater thermocouple shorted) O2 TC Reversed (Oxygen sensor heater thermocouple reversed) O2 Htr Failure (Oxygen sensor heater could not reach final temperature) COe Htr Failure (Combustibles sensor heater could not reach final temperature) SB Htr Failure (Sample block heater could not reach final temperature) Figure 8-2. Oxygen and Cell Output Cal Warning (Calibration warning) Cal Failed (Calibration failed) ANALYZER OUTPUT ( OXYGEN CONCENTRATION (%) MILLIVOLT ) Board Temp Hi (Electronics temperature maximum exceeded, > 85C) EEPRM Chksm Fail (Non-volatile parameter storage corrupted) O2 Temp Low (Oxygen sensor heater temperature low, < 710C) COe Temp Low (Combustion sensor heater temperature low, < 290C) SB Temp Low (Sample block heater temperature low, < 150C) Line Voltage High (AC power line voltage above maximum, > 278 VAC) Htr Relay Failed (Heater relay failure) Out Brd Failure (Output board failure) Figure 8-3. Electrical Connections Between Electronics and Sensor Housing ELECTRONICS HOUSING SENSOR HOUSING Instruction Manual ALARM RELAY EVENTS Page Page SENSOR HOUSING Figure 9-1. Sensor Housing Components Page Figure 9-2. Sensor Housing Components Page ELECTRONICS HOUSING Page Page Instruction Manual O2 CELL AND HEATER STRUT ASSEMBLY Figure 9-5. O2 Cell and Heater Strut Assembly Page Appendix A Safety Data SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS FOR THE WIRING AND INSTALLATION OF THIS APPARATUS DLEIT VIGTIGT Page BELANGRIJK WICHTIG OLULINE TEAVE TRKE IMPORTANT FONTOS Page SVARBU SVARGI IMPORTANTI STRUZZJONIJIET TAS-SIGURT GALL-WIRING U L-INSTALLAZZJONI TAT-TAGMIR VIKTIG WANE! Page DLEIT POMEMBNO Page VIKTIGT SAFETY DATA SHEET FOR CERAMIC FIBER PRODUCTS Page Page Page Page Instruction Manual HIGH PRESSURE GAS CYLINDERS Page Page Page Instruction Manual Appendix B SPA with HART Alarm OVERVIEW DESCRIPTION INSTALLATION SETUP Page Page Page Page Instruction Manual Appendix C Return of Materials RETURNING MATERIAL Page January 2007 OCX 8800 Index Symbols A B C S T W WARRANTY