Reassemble - Emerson Rosemount 3051CF Series Reference Manual

Troubleshooting
July 2020
3. Using a 5/64-in. hex wrench, loosen the housing rotation set screw one full turn.
4. Unscrew the module from the housing, making sure the black cap on the sensor
6.4

Reassemble

Complete the following steps to reassemble the transmitter.
Procedure
1. Inspect all cover and housing (non-process wetted) O-rings and replace if necessary.
2. Carefully tuck the cable connector completely inside the internal black cap. To do
3. Lower the electronics housing onto the module. Guide the internal black cap and
4. Turn the module clockwise into the housing.
5. Thread the housing completely onto the sensor module.
6. Tighten the housing rotation set screw to no more than 7 in.lb when desired
6.4.1 Attach electronics board
Complete the following steps to attach the transmitter's electronics board.
Procedure
1. Remove the cable connector from its position inside of the internal black cap and
2. Using the two captive screws as handles, insert the electronics board into the
3. Tighten the captive mounting screws.
106
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.
module and sensor cable do not catch on the housing.
Lightly grease with silicone lubricant to ensure a good seal.
so, turn the black cap and cable counterclockwise one rotation to tighten the cable.
cable on the sensor module through the housing and into the external black cap.
Important
Ensure the sensor ribbon cable and internal black cap remain completely free of the
housing as you rotate it. Damage can occur to the cable if the internal black cap and
ribbon cable become hung up and rotate with the housing.
The housing must be no more than one full turn from flush with the sensor module
to comply with explosion proof requirements. See
warning information.
location is reached.
attach it to the electronics board.
housing.
Ensure the power posts from the electronics housing properly engage the
receptacles on the electronics board. Do not force. The electronics board should
slide gently on the connections.
Reference Manual
00809-0100-4774
Safety messages for complete
Rosemount 3051