Emerson Rosemount 3051CF Series Reference Manual page 75

Reference Manual
00809-0100-4774
4. Finally, to return the transmitter to service, open the low side isolate valve.
Operate five-valve natural gas manifold
Performing zero trim at static line pressure
Five-valve natural gas configurations shown:
In normal operation, the two isolate (block) valves between the process ports and the
transmitter will be open, and the equalize valves will be closed. Vent valves may be open
or closed.
Reference Manual
A. Drain/vent valve
B. Isolate (open)
C. Equalize (closed)
D. Process
E. Isolate (closed)
F. Drain/vent valve
A. Drain/vent valve
B. Isolate (open)
C. Equalize (closed)
D. Process
E. Isolate (open)
F. Drain/vent valve
Hardware installation
July 2020
75