Emerson Rosemount 2051 Reference Manual page 39

Reference Manual
00809-0300-4101, Rev BB
1. To zero trim the transmitter, close the
isolate valve on the low side
(downstream) side of the transmitter.
2. Open the equalize valve to equalize the
pressure on both sides of the
transmitter. The manifold is now in the
proper configuration for performing a
zero trim on the transmitter.
3. After performing a zero trim on the
transmitter, close the equalize valve.
4. Finally, to return the transmitter to
service, open the low side isolate valve.
Hardware Installation
Hardware Installation
H
Drain/Vent
valve
Equalize
(closed)
Isolate
(open)
Process
H
Drain/Vent
valve
Equalize
(open)
Isolate
(open)
Process
H
Drain/Vent
valve
Equalize
(closed)
Isolate
(open)
Process
H
Drain/Vent
valve
Equalize
(closed)
Isolate
(open)
Process
November 2016
L
Drain/Vent
valve
Isolate
(closed)
L
Drain/Vent
valve
Isolate
(closed)
L
Drain/Vent
valve
Isolate
(closed)
L
Drain/Vent
valve
Isolate
(open)
29