Emerson Rosemount 3051S MultiVariable Reference Manual page 96

Installation
October 2018
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
About this task
5-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.
96
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
Reference Manual
00809-0100-4803
Rosemount 3051S Multivariable Transmitter