Emerson 5081FG Section Maintenance and Service, Model 5081 Electronics Replacement

Page 67

Model 5081FG

Instruction Manual

IB-106-5081, Rev. 1.0 May 2005

SECTION 5

MAINTENANCE AND SERVICE

Install all protective equipment covers and safety ground leads after equip- ment repair or service. Failure to in- stall covers and ground leads could result in serious injury or death.

Disconnect and lock out power before working on any electrical components.

5-1 MODEL 5081 ELECTRONICS REPLACEMENT

Before replacing any electronic components, verify that the power to the Model 5081 Trans- mitter is removed. Refer to Table 8-1for re- placement part numbers.

a.Display Board Replacement

Use the following procedure to replace dis- play board (12, Figure 5-1).

1.Loosen screw (15) until cover lock (16) disengages from the knurled surface of circuit end cap (14).

2.Remove circuit end cap (14).

3.Remove three screws (13) retaining the electronics in place.

4.Lift display board (12) and disconnect the ribbon cable connector between the display board and the CPU board (11).

5.Using a replacement display board, connect the ribbon cable connector between the display board and the CPU board (11). Ensure the cable connector is fully seated.

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

7.Install and tighten all three screws (13).

8.Install circuit end cap (14).

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

b.Spare Board Stack Replacement

The spare board stack is composed of the analog board (10, Figure 5-1)and the CPU board (11). Use the following procedure to

replace either of these boards.

5

1.Loosen cover lock screw (15) until cover lock (16) disengages from the knurled surface of circuit end cap (14).

2.Remove circuit end cap (14). Remove three screws (13).

3.Lift display board (12) and disconnect the ribbon cable connector between display board and CPU board (11).

4.Remove two screws (4) and lockwash- ers (3). Lift terminal block (6) until the analog board (10) is unplugged from the terminal board.

5.Lift spare board stack from housing (1) by the standoffs. Reinstall terminal block (6), lockwashers (3), and screws

(4).

6.Remove standoffs from the spare board stack. Replace faulty analog board (10) or CPU board (11). Reinstall standoffs.

7.Install repaired spare board stack into housing (1). Carefully seat the analog board onto housing pins. Press firmly on the CPU board standoffs to ensure good contact.

Rosemount Analytical Inc. A Division of Emerson Process Management

Maintenance and Service 5-1

Page 66 Page 68
Image 67
Page 66 Page 68
Contents Model 5081FG Essential Instructions Effective May, 2005 Rev Highlights of ChangesSummary 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 Description System ConfigurationSystem Overview ScopeSystem Features Handling the Analyzer System Considerations Transmitter Typical System InstallationProbe SpecificationsOperating Load Region Lift OFF Maximum Power Supply VoltageOhms VDCInspect Section InstallationPRE-INSTALLATION Mechanical InstallationSide View Bottom View Front ViewMetal Wall Masonry Wall Stack or Duct Horizontal Probe Installation Adjusting Probe Insertion Depth Model 5081FG Installing Model 5081 Transmitter Mounting Holes Cover LockCircuit Terminal END Block TBElectrical Installation Display Positioning AssemblyTerminal Block Conduit Model 5081 Transmitter 4-20 mA and Signal ConnectionsThermocouple CELL-WH CELL+BK Calibration Check Gas Pneumatic InstallationReference Air Package Instrument Air Reference AirFlow SET MAX Point Knob Mounting Holes Outlet ConnectionOutlet Inlet ConnectionSection Startup and Operation Power UPGeneral Proper Calibration Check Gas Flow Rate Reestablishing Proper Calibration Check GAS Flow RateMenu Tree OperationOverview DisplayProgram DiagnosticsCalcheck MenuNavigation Infrared Remote Control IRCO2 Concentration O2 Concentration Analyzer Access Code Or SecurityAnalyzer Access Code Program MenuCell T HI O2 Concentration Indicator Fault ValueO2 Concentration Upper Cell Temperature Fault Value Upper Range VALSET O2 Filter Time Reset MAX Cell TTo Reset Maximum Cell Temperature O2 Concentration Analyzer Access CodeSET LO Bottle O2 SET HI Bottle O2Concentration Model 5081 Transmitter Parameters Parameter Range DefaultModel 5081 Transmitter Parameters SET Code Show Fault Diagnostics MenuC mV 24. Previous Slope Previous Constant 23. Cell ImpedanceCalcheck Menu Accept LOW O2 27. in MANUAL?29. Accept LOW O2 Slope Model 5081FG Connections Hart Communicator Signal LineSection HART/AMS OverviewAnalog Output Device Method 2, For Load Resistance 250 OhmsMenu Tree for Hart Communicator TWO-WIRE in Situ Oxygen AnalyzerHart Communicator PC OFF-LINE and ON-LINE OperationsDevice Setup From Sheet Basic Setup Detailed From Sheet Signal Condition Detailed Setup Output Hart Communicator Start CAL- Check Method Model 5081FG Spare Board Stack Replacement Section Maintenance and ServiceModel 5081 Electronics Replacement Display Board ReplacementRibbon Cable Analog Board CPU Two-Wire In Situ Oxygen Analyzer Exploded ViewOxygen Probe Replacement Oxygen Probe Terminal Block IMPEDANCE, Ω Section TroubleshootingProbe Life Normal Operational ConditionsOfresponse Fault IndicationsSpeed 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 Index No Part Number Description Replacement PartsReplacement Parts List SectionModel 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.
Top Page Image Contents