Removing Terminal Block; Removing The Electronics Board; Removing Sensor Module From The Electronics Housing - Emerson Rosemount 2051 Reference Manual

Section 6: Troubleshooting
April 2013
6.4.2

Removing terminal block

Electrical connections are located on the terminal block in the compartment labeled "FIELD
TERMINALS."
1.
2.
3.
6.4.3

Removing the electronics board

The transmitter electronics board is located in the compartment opposite the terminal side. To
remove the electronics board see
1.
2.
Note:
The electronics board is electrostatically sensitive; observe handling precautions for
static-sensitive components
3.
Note:
If an LCD/LOI is installed, use caution as there is an electronic pin connector that interfaces
between the LCD/LOI and electronics board.
6.4.4

Removing sensor module from the electronics housing

1.
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.
See "Safety messages" on page 81
88
Remove the housing cover from the field terminal side.
Loosen the two small screws located on the assembly in the 9 o'clock and 5 o'clock
positions relative to the top of the transmitter.
Pull the entire terminal block out to remove it.
Remove the housing cover opposite the field terminal side.
If you are disassembling a transmitter with a LCD/LOI Display, loosen the two captive
screws that are visible (See
anchor the LCD/LOI Display to the electronics board and the electronics board to the
housing.
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.
Remove the electronics board. Refer to
Carefully tuck the cable connector completely inside of the internal black cap.
for complete warning
Figure 4-1 on page 58 and perform following procedure:
Figure 4.3 LCD Display
"Removing the electronics board" on page
Reference Manual
00809-0100-4107, Rev BA
for screw locations). The two screws
Troubleshooting
88.