Disassembly Procedures; Remove From Service; Remove Terminal Block - Emerson Rosemount 3051S Series Reference Manual

Reference Manual
00809-0100-4801, Rev FA
October 2010
DISASSEMBLY
PROCEDURES

Remove from Service

Remove Terminal Block

Do not remove the instrument cover in explosive atmospheres when the
circuit is live.
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.
• Remove all 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,
and rinse with clear water.
• Whenever you remove the process flange or flange adapters, visually
inspect the PTFE O-rings. Replace the O-rings if they show any signs
of damage, such as nicks or cuts. If they are not damaged, reuse them.
The 3051S transmitter is attached to the process connection by four bolts and
two cap screws. Remove the bolts and separate the transmitter from the
process connection. Leave the process connection in place and ready for
re-installation.
The 3051S in-line transmitter is attached to the process by a single hex nut
process connection. Loosen the hex nut to separate the transmitter from
the process.
Electrical connections are located on the terminal block in the compartment
labelled "FIELD TERMINALS."
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.
Junction Box Housing
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 5-1.
PlantWeb
Rosemount 3051S Series
Junction Box
5-3