Disassembly Procedures; Removing From Service; Removing Terminal Block - Emerson Rosemount 2051G Reference Manual

Reference Manual
00809-0400-4101, Rev BA
Table 6-4. Status: Advisory
LCD
Alert name display
screen
Analog ANLOG
Output Fixed FIXED
Simulation
[none]
Active
Analog
ANLOG
Output
SAT
Saturated
6.4

Disassembly procedures

Do not remove the instrument cover in explosive atmospheres when the circuit is live.
6.4.1

Removing from service

1. Follow all plant safety rules and procedures.
2. Power down device.
3. Isolate and vent the process from the transmitter before removing the transmitter from service.
4. Remove all electrical leads and disconnect conduit.
5. Remove the transmitter from the process connection.
a. The Rosemount 2051G Transmitter is attached to the process by a single hex nut process
Note
Do not wrench on neck of transmitter. See warning in
6. Do not scratch, puncture, or depress the isolating diaphragms.
7. Clean isolating diaphragms with a soft rag and a mild cleaning solution, and rinse with clear water.
6.4.2

Removing terminal block

Electrical connections are located on the terminal block in the compartment labeled "FIELD
TERMINALS."
Troubleshooting
LOI
Problem
screen
The analog output is
fixed and does not
represent the process
measurement. This may
ANALOG
be caused by other
FIXED
conditions in the device,
or because the device
has been set to loop test
or multidrop mode.
The device is in
simulation mode and
[none]
may not be reporting
actual information.
The analog output is
saturated either high or
ANALOG
low due to the pressure
SAT
either above or below
the range values.
connection. Loosen the hex nut to separate the transmitter from the process.
Recommended action
1. Take action on any other notifications from the device.
2. If the device is in loop test, and should no longer be,
disable or momentarily remove power.
3. If the device is in multidrop mode and should not be,
re-enable loop current by setting the polling address to
0.
1. Verify that simulation is no longer required.
2. Disable simulation mode in service tools.
3. Perform a Device Reset.
1. Check the pressure applied to ensure it is between the
4–20mA points.
2. Check the transmitter pressure connection to make sure
it is not plugged or isolating diaphragms are not
damaged.
3. Replace the pressure transmitter.
"Inline process connection" on page
Troubleshooting
January 2018
33.
61