Emerson 3051S Specifications Page 109

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99
Reference Manual
00809-0100-4001, Rev JA
Section 5: Troubleshooting
November 2012
Troubleshooting
5.4.2 Remove terminal block
Electrical connections are located on the terminal block in the compartment labeled “FIELD
TERMINALS.
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
positions.
3. Pull the entire terminal block out to remove it.
5.4.3 Remove the electronics board
The transmitter electronics board is located in the compartment opposite the terminal side. To
remove the electronics board perform the following 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 screws
that are visible on the right and left side of the meter display.
3. Loosen the two captive screws that anchor the board to the housing. The electronics
board is electrostatically sensitive; observe handling precautions for static-sensitive
components. Use caution when removing the LCD as there is an electronic pin
connector that interfaces between the LCD and electronics board. The two screws
anchor the LCD display to the electronics board and the electronics board to the
housing.
4. Using the two captive screws, slowly pull the electronics board out of the housing. The
sensor module ribbon cable holds the electronics board to the housing. Disengage the
ribbon cable by pushing the connector release.
5.4.4 Remove the sensor module from the electronics housing
1. Remove the electronics board. Refer to “Remove the electronics board” on page 99.
Important
To prevent damage to the sensor module ribbon cable, disconnect it from the electronics board
before you remove the sensor module from the electrical housing.
2. Carefully tuck the cable connector completely inside of the internal black cap.
See “Safety messages” on page 89 for complete warning
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