Rosemount 2088 and 2090

Reference Manual

00809-0100-4690, Rev EA March 2007

Figure 3-9. Transmitter

Load Limitations

LOAD (OHMS)

Max. Load = 45.4 (Power Supply Voltage) –10.5

1158

1000

800

600

400

 

 

 

 

 

 

 

Operating

 

 

 

 

 

 

 

 

 

 

 

 

 

200

 

 

 

 

 

 

 

Region

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30(1)

 

 

 

10.5

15

20

25

36

POWER SUPPLY (DC VOLTS)

(1) For CENLEC EX ia Approval, power supply must not exceed 30 volts.

NOTE

Minimum load impedance for Output Code N is 100 kilohms.

Field Wiring

All power to the transmitter is supplied over the signal wiring. Signal wiring need not be shielded, but use twisted pairs for best results. Do not run unshielded signal wiring in conduit or open trays with power wiring, or near heavy electrical equipment. For high EMI/RFI environments, shielded twisted pair cable should be used. To power the transmitter, connect the positive power lead to the terminal marked “PWR/COMM+” and the negative power lead to the terminal marked “–” (see Figure 3-10). Tighten the terminal screws to ensure that proper contact is made. Avoid contact with the leads and the terminals. No additional power wiring is required for transmitters with

4-20 mA output. For low power transmitters, connect positive signal lead to “test +” and negative signal lead to terminal marked “-.”

To connect test equipment for monitoring the output of the Rosemount 2088 Smart during maintenance procedures, connect one lead to the terminal labeled “TEST+” and the other lead to the terminal labeled “–” (see Figure 3-10). Avoid contact with the leads and the terminals.

Signal wiring may be grounded at any one point on the measurement loop, or it may be left ungrounded. The negative side of the power supply is a recommended grounding point. The transmitter case may be grounded or left ungrounded.

Conduit connections at the transmitter should be sealed to prevent moisture accumulating in the field terminal side of the transmitter housing. Also, install wiring with a drip loop with the bottom of the drip loop lower than the conduit connection of the transmitter housing.

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Emerson Process Management 2090, 2088 manual Field Wiring, 10.5
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2088, 2090 specifications

Emerson Process Management, a global leader in process automation and control solutions, has developed a series of advanced controllers including the 2090 and 2088 models. These controllers are integral to modern industrial applications, enhancing operational efficiencies and ensuring precise control over processes.

The Emerson 2090 controller is renowned for its high performance and reliability. It supports both continuous and batch processes, making it versatile for various industrial environments. One of its main features is its modular architecture, which allows for easy scalability and customization according to specific operational needs. The controller is equipped with advanced communication capabilities, supporting multiple protocols such as Modbus, Ethernet/IP, and Profibus, ensuring seamless integration with existing systems.

The 2090 also boasts sophisticated data processing abilities. It employs predictive analytics, enabling users to forecast potential issues and optimize process performance before disturbances occur. With its intuitive user interface and graphical programming environment, operators can design control strategies easily, significantly reducing programming time and enhancing user experience.

On the other hand, the Emerson 2088 controller offers a powerful yet cost-effective solution for smaller-scale applications. Designed for simplicity and ease of use, it contains essential control features while maintaining flexibility. It supports a variety of input and output modules, allowing for extensive configuration options to meet specific requirements. The 2088 is particularly noted for its reliability in extreme conditions, making it an ideal choice for demanding environments.

Both the 2090 and 2088 controllers utilize Emerson’s latest technologies, including advanced algorithms for PID control, and they support redundancy options for critical applications. The emphasis on cybersecurity in both models further ensures safe operation, protecting sensitive data and control systems from potential threats.

These controllers exemplify Emerson's commitment to innovation, efficiency, and reliability in process management. Their robust design and advanced features cater to a wide range of industries, including oil and gas, chemical processing, and water treatment. As industry standards evolve, Emerson continues to lead the charge by integrating cutting-edge technologies into their controller solutions to meet the ever-changing demands of process automation.
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