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5.5 Replacing the Meter Body
You can replace the complete meter body, including the process heads, or the meter body only on certain
Differential Pressure (DP), Gauge Pressure (GP), and Atmospheric Pressure (AP) transmitters by using
the existing process head(s). Use the following procedure for meter body-only replacement.
1. Save or record device configuration data.
2. Turn off transmitter power.
3. Remove the transmitter from service and move it to a clean area before disassembling it.
4. Refer to
Figure 25
of the transmitter housing.
Please take appropriate steps to avoid ESD damage when handling the communication
and display module assemblies
5. If a display is present, press the two snaps along the side, and remove it from the communication
module assembly.
Note: Do not discard or misplace the display/communication connector, it will be required to
reassemble the display module.
6. Loosen the two retaining screws, and remove the communications module assembly, and remove
the communication module assembly from the electronics housing.
7. Disconnect the sensor cable from the communications Board.
8. Refer to
Figure
the housing to permit rotating the meter body.
93
. Loosen the end cap lock and unscrew the end cap from the electronics side
Figure 25 – Disassembly for Meter Body Replacement
26. Use a 2 mm hex wrench to completely loosen the set screw on the outside of
ST 800 Pressure Transmitter User's Manual
Revision 15
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