Emerson Rosemount 2051 Reference Manual page 42

Hardware Installation
November 2016
1. To isolate the transmitter, close the isolate valve.
2. To bring the transmitter to atmospheric pressure,
open the vent valve or bleed screw.
Note
A / -in. male NPT pipe plug may be installed in the
1
4
test/vent port and will need to be removed with a
wrench in order to vent the manifold properly.
Always use caution when venting directly to
atmosphere.
3. After venting to atmosphere, perform any required
calibration and then close the test/vent valve or
replace the bleed screw.
4. Open the Isolate (block) valve to return the
transmitter to service.
32
Reference Manual
00809-0300-4101, Rev BB
Transmitter
(closed)
Isolate
Process
(closed)
Transmitter
Isolate
Process
(closed)
Transmitter
(closed)
Isolate
Process
(closed)
Transmitter
(closed)
Isolate
Process
(open)
Hardware Installation
Vent
Vent
(open)
Vent
Vent