Emerson Process Management 2051 manual Remove the Electronics Board, Rosemount, Reference Manual

Rosemount 2051

Reference Manual

00809-0200-4101, Rev AA July 2008

Remove the Electronics Board

Remove the Sensor Module from the Electronics Housing

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.

1.Remove the electronics board. Refer to “Remove the Electronics Board” on page 5-10.

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.

NOTE

Do not remove the housing until after you tuck the cable connector completely inside of the internal black cap. The black cap protects the ribbon cable from damage that can occur when you rotate the housing.

3.Loosen the housing rotation set screw with a 5/64-inch hex wrench, and loosen one full turn.

4.Unscrew the module from the housing, making sure the black cap and sensor cable do not catch on the housing.

5-10