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Reference Manual
00809-0100-4803, Rev GA
Operation and Maintenance
September 2017
Operation and Maintenance
4.5.2
All variables tab
The
All Variables
tab allows the user to view a complete overview of all variables available within the
device.
Figure 4-8. Process Variables - All Variables Tab
4.6
Field upgrades and replacements
4.6.1
Disassembly considerations
During disassembly, do not remove the instrument cover 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.
Summary of Contents for 3051S Series
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