MODEL 228

USE OF INSERTION - RETRACTION ASSEMBLIES

INSERTION - RETRACTION ASSEMBLIES

INSTALLATION REQUIREMENTS

1.Process connection: 1-1/2 inch. Larger openings may keep the sensor from inserting far enough into the process liquid.

2.Line size: 3 in.; 2-in. line requires in-place calibra- tion.

3.Valve: 1-1/2 NPT full port ball valve (PN 9340065).

4.Retraction clearance: 2 ft (0.6 m).

5.Provide mechanical support if excess vibration is expected.

6.Flush water: provide 1/8 in. valves in inlet and outlet flush ports. Position flush ports so that retraction chamber can be drained.

MANUAL RETRACTION ASSEMBLY (PN 23311-01)

INSTALLATION

1.Loosen the collet nut and retract the sensor tube into the retraction chamber. See Figure 14.

2.Loosen the union nut and separate the retraction chamber from the assembly.

3.Install the retraction chamber on the 1-1/2 in. NPT full port ball valve mounted on the process line or vessel.

4.Thread the sensor cable through the tube into the junction box. Screw the sensor into the tube. Hand tighten the sensor an additional half turn once the gasket is seated.

5.Connect the sensor and interconnecting cable leads to the terminal strip in the junction box. See figure 13.

6.Connect the other end of the cable to the analyzer. See the wiring diagrams in Figures 5 through 10. For cable PN 23294-00 follow the wiring for the 228-54 sensor. For cable PN 23294-04 and 23294-05, follow the wiring for the 228-56 sensor, with the following exception:

Refer to the wire function diagram for the 228-56 option in figure 4 and identify the RTD wire bundle. Connect the RTD wires to the analyzer as follows:

Green – RTD in

Black – no connection

Clear – RTD common or RTD return White – RTD sense

Wrap the bare end of the black wire to prevent accidental connections.

7.Insert the sensor and tube assembly into the retraction chamber.

8.Tighten the union nut.

9.Open the ball valve, check for leaks, and manually insert the sensor into the process.

10.Position the sensor at least 1/2 in. (13 mm) away from any wall of the vessel or pipe.

11.Tighten the collet nut.

23294-00(For cables 23294-04 and

23294-05, see note)

FIGURE 13. Sensor-Mounted Junction Box Wiring

Note: Interconnecting cables PN 23924-04 and 23294-05 have four RTD (TC) leads: clear, black, white, and green. Do not connect the black RTD (TC) lead. Cable PN 23294-05 has a clear outer shield. See Figure 11. Do not connect the outer shield.

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Emerson 228 specifications Insertion Retraction Assemblies, Manual Retraction Assembly PN, Installation Requirements
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228 specifications

The Emerson 228 is a cutting-edge industrial controller designed for demanding applications across various sectors, including manufacturing, oil and gas, and process automation. Known for its robust performance and reliability, the Emerson 228 integrates advanced technologies to streamline operations and enhance productivity.

One of the standout features of the Emerson 228 is its modular architecture. This design allows users to customize the controller according to their specific needs by adding or removing modules as required. This flexibility is vital for adapting to changing production environments and scaling operations efficiently.

The Emerson 228 also boasts an intuitive user interface, which simplifies the configuration and monitoring processes. Operators can easily visualize processes through graphical displays, making it possible to diagnose issues quickly and respond in real time. This enhanced visibility significantly reduces downtime and improves overall operational efficiency.

Connectivity is another key characteristic of the Emerson 228. It supports a wide range of communication protocols, including Ethernet/IP, Modbus, and Profibus. This allows seamless integration with existing infrastructure and enables the controller to communicate with various devices, sensors, and other controllers, facilitating a holistic approach to automation.

In terms of performance, the Emerson 228 is designed to handle complex algorithms and data processing tasks with ease. It is equipped with advanced processing capabilities that enable high-speed data collection and analysis. This is particularly important in environments where rapid decision-making is critical to maintain production efficiency and safety.

The Emerson 228 is also built with durability in mind. It features robust construction and is rated for extreme temperatures and harsh conditions, ensuring reliable operation even in challenging environments. This reliability translates to lower maintenance costs and longer service life, making the Emerson 228 a cost-effective solution for businesses.

Energy efficiency is a focal point of the Emerson 228, featuring technologies that optimize power consumption without compromising system performance. This not only reduces operational costs but also supports sustainability initiatives within organizations, contributing to a greener industrial footprint.

In summary, the Emerson 228 stands out as a versatile and powerful industrial controller. Its modular design, user-friendly interface, extensive connectivity options, high processing performance, durability, and energy efficiency make it an ideal choice for modern industrial applications. Organizations looking to enhance their automation capabilities will find the Emerson 228 to be a reliable and effective solution.
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