Emerson Rosemount 3051S Series Reference Manual page 32

Installation
October 2016
4. After performing a zero trim on the transmitter, close
the equalize valve on the low pressure (downstream)
side of the transmitter.
5. Close the equalize valve on the high pressure
(upstream) side.
6. Finally, to return the transmitter to service, open the
low side isolate valve and vent valve. The vent valve can
remain open or closed during operation.
22
Reference Manual
00809-0200-4801, Rev DA
H
(Plugged)
Equalize Equalize
(open) (closed)
Isolate
(open)
Process Drain vent
(closed)
H
(Plugged)
Equalize Equalize
(closed) (closed)
Isolate
(open)
Process Drain vent
(closed)
H
(Plugged)
Equalize Equalize
(closed) (closed)
Isolate
(open)
Process Drain vent
(closed)
L
(Plugged)
Isolate
(closed)
Process
L
(Plugged)
Isolate
(closed)
Process
L
(Plugged)
Isolate
(open)
Process
Installation