Emerson 5081FG instruction manual Oxygen Probe Replacement

Page 69

Model 5081FG

Instruction Manual

IB-106-5081, Rev. 1.0 May 2005

8.Connect the ribbon cable connector between display board (12) and the CPU board (11). Ensure the cable connector is fully seated.

9.Reposition display board (12) on the standoffs. Rotate the display board 90 degrees either way as desired.

10.Install and tighten all three screws (13) and circuit end cap (14).

11.Tighten cover lock screw (15) until cover lock (16) engages knurled sur- face of circuit end cap (14).

Use heat resistant gloves and clothing when removing the probe. The probe can be as hot as 1600°C (2912°F). This can cause severe burns.

5-2 OXYGEN PROBE REPLACEMENT

The oxygen probe is designed with ceramic materials to provide maximum life at elevated temperatures and is not rebuildable. The condi- tion of the sensing cell can be determined peri- odically by two methods:

•Note the cell impedance at the electronics. When the impedance displays a warning in- dication (WARN), increase the frequency of impedance readings. A cell with a sustained high impedance indication (HI) indicates a probe that is beyond its useful life.

•Conduct a calibration check. Follow the prompts provided by the electronics through the process of flowing two calibration check

gases of known values. Record the generated slope and constant values.

Probe replacement may be conducted online as long as the process in which the probe is mounted is operating at a negative, or slightly positive, pressure. Refer to Section 6, TROU- BLESHOOTING, for more information.

Do not install or remove probes from a process where pressures are more than a few inches of H2O positive pressure. Hot gases may escape from the stack and cause severe personal injury.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Do not insert or withdraw a probe into

 

5

or out of a hot process faster than 1 in.

 

 

(25.4 mm) per minute or instrument

 

 

damage from thermal shock may

 

 

occur.

 

 

Also, ash, slag, or other materials can

 

 

build up on the probe body in some

 

 

applications. If this buildup is causing

 

 

difficulty when withdrawing the probe,

 

 

DO NOT FORCE. Rotate the probe

 

 

back and forth to attempt to loosen the

 

 

material on the probe body. Or, wait

 

 

until the process cools down and ac-

 

 

cess the buildup from inside the

 

 

furnace.

 

 

Refer to Table 8-1for replacement probe part numbers. Before replacing the probe, verify that the reference air and calibration check gas lines are turned off and disconnected from the probe.

Rosemount Analytical Inc. A Division of Emerson Process Management

Maintenance and Service 5-3

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Contents Model 5081FG Essential Instructions Highlights of Changes Effective May, 2005 RevSummary Page Model 5081FG Table of ContentsList of Illustrations List of Tables Model 5081FG Definitions PrefaceModel 5081FG Belangrijk Vigtigt Model 5081FG Tärkeää Model 5081FG Wichtig Importante Viktig Model 5081FG Model 5081FG Viktigt Model 5081FG Component Checklist of Typical System Package Contents Section Description and SpecificationsCode Mounting Adapter Stack Side Product MatrixSystem Overview System ConfigurationScope System DescriptionSystem Features Handling the Analyzer System Considerations Transmitter Typical System InstallationProbe SpecificationsOhms Lift OFF Maximum Power Supply VoltageVDC Operating Load RegionPRE-INSTALLATION Section InstallationMechanical Installation InspectSide View Bottom View Front ViewMetal Wall Masonry Wall Stack or Duct Horizontal Probe Installation Adjusting Probe Insertion Depth Model 5081FG Installing Model 5081 Transmitter Circuit Terminal END Cover LockBlock TB Mounting HolesElectrical Installation Display Positioning AssemblyModel 5081 Transmitter 4-20 mA and Signal Connections Terminal Block ConduitThermocouple CELL-WH CELL+BK Reference Air Package Pneumatic InstallationInstrument Air Reference Air Calibration Check GasOutlet Outlet ConnectionInlet Connection Flow SET MAX Point Knob Mounting HolesPower UP Section Startup and OperationGeneral Proper Calibration Check Gas Flow Rate Reestablishing Proper Calibration Check GAS Flow RateOverview OperationDisplay Menu TreeCalcheck DiagnosticsMenu ProgramNavigation Infrared Remote Control IRCAnalyzer Access Code O2 Concentration Analyzer Access Code Or SecurityProgram Menu O2 ConcentrationO2 Concentration Upper Cell Temperature Fault Value O2 Concentration Indicator Fault ValueUpper Range VAL Cell T HITo Reset Maximum Cell Temperature Reset MAX Cell TO2 Concentration Analyzer Access Code SET O2 Filter TimeSET HI Bottle O2 SET LO Bottle O2Concentration Parameter Range Default Model 5081 Transmitter ParametersModel 5081 Transmitter Parameters SET Code Diagnostics Menu Show FaultC mV 24. Previous Slope Previous Constant 23. Cell ImpedanceCalcheck Menu Accept LOW O2 27. in MANUAL?29. Accept LOW O2 Slope Model 5081FG Section HART/AMS Hart Communicator Signal LineOverview ConnectionsAnalog Output Device Method 2, For Load Resistance 250 OhmsHart Communicator PC TWO-WIRE in Situ Oxygen AnalyzerOFF-LINE and ON-LINE Operations Menu Tree for Hart CommunicatorDevice Setup From Sheet Basic Setup Detailed From Sheet Signal Condition Detailed Setup Output Hart Communicator Start CAL- Check Method Model 5081FG Model 5081 Electronics Replacement Section Maintenance and ServiceDisplay Board Replacement Spare Board Stack ReplacementRibbon Cable Analog Board CPU Two-Wire In Situ Oxygen Analyzer Exploded ViewOxygen Probe Replacement Oxygen Probe Terminal Block Probe Life Section TroubleshootingNormal Operational Conditions IMPEDANCE, ΩFault Indications OfresponseSpeed Thermocouple Identifying and Correcting Fault IndicationsFault 1, Open Thermocouple Fault 3, Shorted Thermocouple Fault 5, O2 Cell Open Fault 6, Cell Impedance Too High Fault 5, O2 Cell Open11. Fault 7, Reversed O2 Cell Fault 7, Reversed O2 CellModel 5081FG Section Return of Material Model 5081FG Replacement Parts List Replacement PartsSection Index No Part Number DescriptionModel 5081FG Section Index Model 5081FG Model 5081FG Page Warranty Two-Wire In Situ Oxygen Analyzer Serial no Order no

5081FG specifications

The Emerson 5081FG Series is a cutting-edge digital smart transmitter designed for various industrial applications, including oil and gas, chemical processing, and water treatment. Known for its accuracy and reliability, the Emerson 5081FG integrates an array of advanced technologies to enhance measurement capabilities and operational efficiency.

One of the main features of the 5081FG is its multi-variable measurement, which allows for the integration of differential pressure, static pressure, and temperature readings into a single device. This capability significantly reduces the need for multiple instruments, leading to lower installation costs and improved data collection efficiency.

With Smart Wireless technology, the Emerson 5081FG offers robust wireless communication, making it ideal for remote or hard-to-reach locations. Its ability to transmit real-time data wirelessly enhances operational awareness and enables proactive maintenance decisions. The transmitter can easily connect to various process control systems for seamless integration and data sharing.

The 5081FG also incorporates Emerson's advanced diagnostics and predictive maintenance algorithms. These features continuously monitor the health of the transmitter and the processes it measures, alerting operators to potential issues before they escalate into serious problems. This proactive approach to maintenance not only improves safety but also minimizes downtime and maximizes productivity.

Another significant characteristic of the Emerson 5081FG is its rugged design, built to withstand harsh industrial environments. With an IP67 rating, it is resistant to dust and water ingress, ensuring reliable operation even in challenging conditions. The device is also designed to handle a wide range of temperatures and pressures, making it versatile for diverse applications.

User-friendly configuration and programming are facilitated by Emerson's intuitive software tools, which provide easy setup and calibration processes. This simplicity allows operators to optimize performance without needing extensive training or support.

In conclusion, the Emerson 5081FG is a powerful and reliable smart transmitter that addresses the needs of various industries. Its multi-variable measurement capability, wireless communication, advanced diagnostics, and rugged design make it an excellent choice for companies looking to enhance their operational efficiency and maintain high standards of safety and reliability. With the Emerson 5081FG, businesses can expect not only accurate measurements but also valuable insights that contribute to smarter decision-making.
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