Emerson Rosemount 2051G - Disassembly Procedures; Removing from Service; Removing Terminal Block

61
Reference Manual
00809-0400-4101, Rev BA
Troubleshooting
January 2018
Troubleshooting
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
connection. Loosen the hex nut to separate the transmitter from the process.
Note
Do not wrench on neck of transmitter. See warning in “Inline process connection” on page 33.
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.”
Analog
Output Fixed
ANLOG
FIXED
ANALOG
FIXED
The analog output is
fixed and does not
represent the process
measurement. This may
be caused by other
conditions in the device,
or because the device
has been set to loop test
or multidrop mode.
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.
Simulation
Active
[none] [none]
The device is in
simulation mode and
may not be reporting
actual information.
1. Verify that simulation is no longer required.
2. Disable simulation mode in service tools.
3. Perform a Device Reset.
Analog
Output
Saturated
ANLOG
SAT
ANALOG
SAT
The analog output is
saturated either high or
low due to the pressure
either above or below
the range values.
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.
Table 6-4. Status: Advisory
Alert name
LCD
display
screen
LOI
screen
Problem Recommended action