Why will process or block alarms not work on my Emerson Rosemount OCX 8800?
Process and/or block alarms might not function on your Emerson Transmitter due to several reasons: * Alerts may not be enabled in FEATURES_SEL. Ensure the Alerts bit is enabled. * LIM_NOTIFY might not be set high enough. It should be set equal to MAX_NOTIFY. * The Propagate Fault Forward bit may be set in STATUS_OPTS. Clear this bit to allow alarms to occur.
What to do if the mode will not leave OOS on Emerson Rosemount OCX 8800 Transmitter?
If the mode on your Emerson Transmitter will not leave OOS, consider the following: * Ensure the target mode is set to something other than OOS. * Check for configuration errors. If BLOCK_ERR shows the configuration error bit set, verify that CHANNEL is set to a valid value (not 0), XD_SCALE.UNITS_INDX matches the units in the transducer block channel value, and L_TYPE is set to Direct, Indirect, or Indirect Square Root (not 0). * Verify that the resource block's actual mode is not OOS. * Confirm that the block is scheduled for execution.
Why does the output value of my Emerson Rosemount OCX 8800 not make sense?
If the output value of your Emerson Transmitter doesn't make sense, check the following: * Ensure that L_TYPE is set to Direct, Indirect, or Indirect Square Root, and not left at the initial value of 0. * Verify that the scaling parameters are set correctly. XD_SCALE.EU0 and EU100 should match that of the transducer block channel value, and OUT_SCALE.EU0 and EU100 should be set properly.
General| Display | LCD |
|---|---|
| Accuracy | ± 1% of reading |
| Model | OCX 8800 |
| Measurement Type | Concentration |
| Operating Temperature | -40°C to 60°C (-40°F to 140°F) |
| Power Supply | 10-30 VDC |
| Communication Protocols | HART |
| Battery Life | Not applicable |
| Enclosure | IP66 |
| Output Signal | 4-20 mA |
| Process Connection | 1/2 in NPT |
Lists the items included in a typical OCX 8800 Oxygen/Combustibles Transmitter package.
Provides details for installing, starting up, operating, and maintaining the OCX 8800.
Details the technical specifications of the OCX 8800 transmitter, including ranges, accuracy, and limits.
Defines the product matrix for ordering and identifying OCX 8800 configurations.
Provides critical safety instructions and warnings for installation procedures.
Covers procedures for selecting a location and performing mechanical installation.
Details electrical connection procedures, including line voltage and signal wiring.
Explains pneumatic connection procedures for reference air, solenoids, and blowback options.
Guides through the initial power-up sequence and setup for the OCX 8800.
Ensures correct mechanical, electrical, and pneumatic connections are made before operation.
Describes the steps and considerations for the initial power-up sequence.
Instructions for setting test gas values for calibration using different communication methods.
Configuration steps for calibration solenoids using HART or Fieldbus.
Configuration of the blowback feature for sample line cleaning.
Procedure for verifying analyzer calibration without altering calibration values.
Configuration to set calibration tolerance limits for O2 and COe measurements.
Configuration for periodically flooding the COe sensor with air for cleaning or calibration adjustment.
Steps to reset the transmitter to normal operation or clear fault conditions.
Details on how to mount and orient the LOI module for optimal display viewing.
Overview of the LOI module's display, keys, and communication capabilities.
Provides a menu tree structure for navigating the LOI interface on the OCX 8800.
Introduction to the calibration process, including gas types and methods.
Setup for automatic calibration intervals using HART communicator.
Detailed procedures for performing manual O2 and COe calibration via LOI or HART.
Procedures for performing O2 and COe D/A trim using the LOI.
Procedures for performing O2 and COe D/A trim using the HART Field Communicator.
Introduction to the 375 Field Communicator's capabilities and interface.
Instructions for connecting the Field Communicator to HART and Fieldbus segments.
Provides the menu tree structure for the Field Communicator when using HART protocol.
Provides the menu tree structure for the Field Communicator when using Fieldbus protocol.
Overview of Foundation Fieldbus technology, features, and benefits.
Explains Fieldbus network components like LAS and device addressing.
Lists the OCX implemented function blocks and their descriptions.
Details the Resource block, including PlantWeb Alerts and their severity levels.
Describes the Transducer block's role in interfacing the transmitter with Fieldbus.
Details the AI function block, its parameters, and application examples.
Explains the PID function block, its modes, and control strategies.
Describes the ARTHM function block, its parameters, and troubleshooting.
Provides troubleshooting guidance for the Arithmetic (ARTHM) function block.
Details the ISEL function block, its parameters, modes, and application examples.
Instructions for integrating the instrument with AMS and DeltaV software.
General troubleshooting advice including grounding, electrical noise, and ESD.
Information on diagnostic alarms and their causes.
Procedure for isolating faults using messages displayed on the Field Communicator.
Lists alarm relay events and the corresponding alarm conditions.
Provides procedures for maintaining and servicing the transmitter.
Covers procedures for removing and installing the transmitter and its components.
Procedures for disassembling and repairing the electronics housing.
Lists replacement parts for the sensor housing.
Lists replacement parts for the electronics housing.
Lists replacement parts for the O2 cell and heater strut assembly.
General safety instructions for wiring, installation, and handling of the apparatus.
Provides safety data for ceramic fiber components, including identification and physical data.
Lists hazardous ingredients and their exposure limit values.
Information on flash point, flammability limits, and extinguishing media.
Details health hazards associated with exposure, including effects on eyes, skin, and respiratory tract.
Steps to take for material release or spills, including waste disposal methods.
Precautions for handling and storing high pressure gas cylinders.
Clarification on ATEX compliance for gas analysis within a flameproof enclosure.
Describes the SPA with HART alarm option for the OCX 8800.
Details the Moore Industries SPA with HART Alarm and its recognized OCX 8800 alarm outputs.
Provides typical interface connections for the OCX8800 and SPA with HART alarm.
Guides on setting SPA for communication with the transmitter via menu-driven procedures.
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