MODEL 228

USE OF INSERTION - RETRACTION ASSEMBLIES

REPLACING SEALS IN MANUAL AND MECHANICAL RETRACTION ASSEMBLIES.

1.Retract the sensor into the retraction chamber and fully close the ball valve.

2.Drain the retraction chamber contents using the 1/8 in. flush ports.

WARNING

Retraction chamber contents may be under pressure.

3.(Mechanical) Mark the location of the nut housing cap and retraction collar on the sensor tube. Remove both socket head cup screws from the nut housing and loosen the retraction stop collar.

4.Remove the 3 in. Hex Union nut.

5.Withdraw the sensor from the retraction chamber.

6.Open the junction box and disconnect the sensor wires from the terminal block.

7.Remove the compression fitting just below the junction box and remove the junction box from the sensor tube.

8.(Manual) Pull down the nut guard and remove the collet nut from the bushing housing.

9.Slide all hardware including the bushing housing off the sensor tube.

10.Remove the retaining ring from the bottom of the bushing housing.

11.Remove the Teflon guard.

12.From the top of the bushing housing press out the Teflon bushing. This will also push out the Teflon cup seal.

13.Replace all damaged parts with replacement parts from Figure 16 or 17. Replace the sensor tube if the surface is damaged. A rough or uneven surface will prevent the Teflon cup from sealing.

14.Rebuild the bushing housing. The open end of the cup seal (spring visible) faces the process.

15.Carefully slide the bushing housing onto the sen- sor tube. Do not damage the Teflon bushing or the Teflon cup seal.

16.(Manual) Slide the 3 in. Hex Union nut, collet nut with nut guard, junction box compression nut, and plastic ferrules onto the sensor tube.

17.(Mechanical) Slide the 3 in. Hex Union nut, retrac- tion stop collar, junction box compression nut, and plastic ferrules onto the sensor tube.

18.Connect the junction box to the sensor tube and wire the sensor leads to the appropriate terminals.

19.(Mechanical) Lock the retraction stop collar into position (see Figure 15 or previously marked posi- tion for proper location).

20.Place the Union nut O-ring on the bottom of the bushing housing. Insert the sensor assembly into the retraction chamber and tighten the 3 in. Hex Union nut.

21.(Mechanical) Install the nut housing cap (see Figure 15 or previously marked position for proper location).

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Emerson 228 specifications Model USE of Insertion Retraction Assemblies
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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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