Emerson Rosemount 228 Reference Manual page 23

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Rosemount 228 Sensor
Figure 2-9: Manual retraction assembly replacement parts
Rebuild the bushing housing.
The open end of the cup seal (spring visible) faces the process.
Carefully slide the bushing housing onto the sensor tube.
Do not damage the Teflon bushing or the Teflon cup seal.
For manual retraction assemblies, slide the 3 in. hex union nut, collet nut with nut
guard, junction box compression nut, and plastic ferrules onto the sensor tubee.
For mechanical retraction assemblies, slide the 3 in. hex union nut, retraction stop
collar, junction box compression nut, and plastic ferrules onto the sensor tube.
Connect the junction box to the sensor tube and wire the sensor leads to the
appropriate terminals.
Install
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