Emerson Rosemount 3051S ERS User Manual

49
Reference Manual
00809-0100-4804, Rev CB
Operation and Maintenance
November 2016
Operation and Maintenance
4.5 Field upgrades and replacements
4.5.1 Disassembly considerations
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 recommends reusing O-rings if possible. If the O-rings show any signs of damage, such as
nicks or cuts, they should be replaced.
4.5.2 Labeling
Field device labels
The label on the SuperModule
™
reflects the replacement model code for reordering a complete ERS
Transmitter, including both the SuperModule assembly and the electronics housing. The Rosemount 300
ERS model code stamped on the electronics housing nameplate can be used to reorder an electronics
housing assembly.
4.5.3 Remove the terminal block
Electrical connections are located on the terminal block in the compartment labeled “FIELD
TERMINALS.”
Rosemount 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.
Rosemount 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.

Emerson Rosemount 3051S ERS Specifications

General

Model	3051S ERS
Category	Accessories
Operating Temperature	-40 to 85°C (-40 to 185°F)
Transmitter Compatibility	Rosemount 3051S
Communication Protocol	HART
Housing Material	Stainless Steel
Compatibility	Rosemount 3051S
Enclosure Rating	NEMA 4X
Product Type	Electronic Remote Sensor (ERS) System