Field Upgrades And Replacements - Emerson Rosemount 3051S Reference Manual
Electronic remote sensors
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Also See for Rosemount 3051S:
- Reference manual (240 pages) ,
- Manual (96 pages) ,
- Manual supplement (60 pages)
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Rosemount 3051S ERS System
FIELD UPGRADES AND
REPLACEMENTS
Disassembly
Considerations
Labeling
Removing the Terminal
Block
4-8
•
During disassembly, do not remove any instrument covers in explosive
atmospheres when the circuit is live as this may result in serious injury
or death. Also, be aware of the following:
•
Follow all plant safety rules and procedures.
•
Isolate and vent the process from the transmitter before removing the
transmitter from service.
•
Disconnect optional process temperature sensor leads and cable.
•
Remove all other electrical leads and conduit.
•
Detach the process flange by removing the four flange bolts and two
alignment screws that secure it.
•
Do not scratch, puncture, or depress the isolating diaphragms.
•
Clean isolating diaphragms with a soft rag and a mild cleaning solution,
then rinse with clear water.
•
Whenever the process flange or flange adapters are removed, visually
inspect the PTFE o-rings. Emerson Process Management
recommends reusing o-rings if possible. If the o-rings show any signs
of damage, such as nicks or cuts, they should be replaced.
Field Device Labels
The label on the SuperModule reflects the replacement model code for
reordering a complete ERS sensor, including both the SuperModule assembly
and the electronics housing. The 300ERS model code stamped on the
electronics housing nameplate can be used to reorder an electronics housing
assembly.
Electrical connections are located on the terminal block in the compartment
labeled "FIELD TERMINALS."
3051S ERS Primary (PlantWeb Housing)
Loosen the two small screws located at the 10 o'clock and 4 o'clock positions,
and pull the entire terminal block out.
3051S ERS Secondary (Junction Box)
Loosen the two small screws located at the 8 o'clock and 4 o'clock positions,
and pull the entire terminal block out. This procedure will expose the
SuperModule connector (see Figure 4-3). Grasp the SuperModule connector
and pull upwards.
Reference Manual
00809-0100-4804, Rev AA
January 2011
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