Instruction Manual

IB-106-5081, Rev. 1.0 May 2005

Model 5081FG

The Model 5081 Transmitter is a two-wire transmitter providing an isolated output, 4- 20 mA, that is proportional to the measured oxygen concentration. A customer-supplied 24 VDC power source is required to simul- taneously provide power to the electronics and a 4-20 mA signal loop. The transmitter accepts millivolt signals generated by the probe and produces the outputs to be used by other remotely connected devices. The output is an isolated 4-20 mA linearized current.

d.System Features

1.The cell output voltage and sensitivity increase as the oxygen concentration decreases.

2.High process temperatures eliminate the need for external cell heating and increase cell accuracy.

3.HART communication is standard. To use the HART capability, you must have either:

(a)HART Model 275/375 Communicator

(b)Asset Management Solutions (AMS) software for the PC

4.Easy probe replacement due to the light-weight, compact probe design.

5.Remote location of the Model 5081 Transmitter removes the electronics from high temperature or corrosive environments.

6.Power is supplied to the electronics through the 4-20 mA line for intrinsic safety (IS) purposes.

7.Infrared remote control (IRC) allows interfacing without exposing the electronics.

8.An operator can operate and diagnos- tically troubleshoot the Two-Wire In Situ Oxygen Analyzer in one of two ways:

(a)Infrared Remote Control. The IRC allows access to fault indication menus on the Model 5081 Trans- mitter LCD display. Calibration can be performed from the IRC keypad.

(b)Optional HART Interface. The Two-Wire In Situ Oxygen Ana- lyzer’s 4-20 mA output line trans- mits an analog signal proportional to the oxygen level. The HART output is superimposed on the 4-20 mA output line. This information can be accessed through the following:

1Rosemount Analytical Model 275/375 Handheld Communi- cator - The handheld commu- nicator requires Device Description (DD) software specific to the Two-Wire In Situ Oxygen Analyzer. The DD software will be supplied with many Model 275/375 units but can also be pro- grammed into existing units at most Fisher-Rosemount Ana- lytical service offices. See Section 4, HART/AMS, for additional HART information.

2Personal Computer (PC) - The use of a personal com- puter requires AMS software available from Fisher- Rosemount.

9.Selected Distributed Control Systems - The use of distributed control systems requires input/output (I/O) hardware and AMS Security codes are provided to (by infrared remote control) prevent unintended changes to analyzers adja- cent to the one being accessed.

10.A calibration check procedure is provided to determine if the Rosemount Analytical Two-Wire In Situ Oxygen Analyzer is cor- rectly measuring the net oxygen concen- tration in the industrial process.

1-4 Description and Specifications

Rosemount Analytical Inc. A Division of Emerson Process Management

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Emerson 5081FG instruction manual System Features
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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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