Emerson 228 specifications Model USE of Insertion Retraction Assemblies

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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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Contents Specifications Adapters Specifications SensorsSpecifications Retraction Assemblies SENSOR/PROCESS Application CompatibilityInstallation WiringWiring 228-54 and 228-56 sensors to Model 54eC analyzer Model Wiring Wiring 228-54 and 228-56 sensors to Model 1066 transmitter Wiring Through a Remote Junction BOX Wiring sensors through a remote junction boxInstallation Manual Retraction Assembly PNInstallation Requirements Insertion Retraction AssembliesManual Retraction Assembly RetractionMechanical Retraction Assembly PN Mechanical Retraction AssemblyModel USE of Insertion Retraction Assemblies Mechanical Retraction Assembly Replacement Parts Manual Retraction Assembly Replacement Parts Calibration Troubleshooting MaintenanceProblem Probable Cause Solution Page ON-LINE Ordering NOW Available on OUR WEB Site

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.

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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.