Emerson Rosemount 2051 Reference Manual page 103

Reference Manual
00809-0100-4107
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
8. For the 2051C, whenever you remove the process flange or flange adapters, visually
6.6.2 Removing terminal block
Electrical connections are located on the terminal block in the compartment labeled
"FIELD TERMINALS."
Procedure
1. Remove the housing cover from the field terminal side.
2. Loosen the two small screws located on the assembly in the 9 o'clock and 5 o'clock
3. Pull the entire terminal block out to remove it.
6.6.3 Removing electronics board
The transmitter electronics board is located in the compartment opposite the terminal
side. To remove the electronics board see
Procedure
1. Remove the housing cover opposite the field terminal side.
2. If you are disassembling a transmitter with a LCD display, loosen the two captive
3. Using the two captive screws, slowly pull the electronics board out of the housing.
Reference Manual
the process. Do not wrench on neck of transmitter. See warning in
process connection.
Note
Do not wrench on neck of transmitter.
with clear water.
inspect the PTFE O-rings. Replace the O-rings if they show any signs of damage,
such as nicks or cuts. Undamaged O-rings may be reused.
positions relative to the top of the transmitter.
screws that are visible (See
display. The two screws anchor the LCD display to the electronics board and the
electronics board to the housing.
Note
The electronics board is electrostatically sensitive; observe handling precautions for
static-sensitive components
The sensor module ribbon cable holds the electronics board to the housing.
Disengage the ribbon cable by pushing the connector release.
Note
If an LOI/LCD display is installed, use caution as there is an electronic pin connector
that interfaces between the LOI/LCD display and electronics board.
Figure 4-2 and perform following procedure:
Figure 4-1 for screw locations). on the front of the meter
Troubleshooting
September 2020
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