Maintenance and Troubleshooting
June 2017
Instruction Manual
D103176X012
43
Assembly
When installing a new I/P converter, follow the reverse procedure as outlined above and recalibrate the instrument.
1. Install the I/P converter, making sure the screen O-ring is installed on the I/P supply port (the circular port on the
mounting frame), and that the two manifold O-rings are in place.
2. Install the interconnect board on the mounting frame. Do not tighten the self-tapping screw on on the interconnect
board at this time (see figure 4‐2).
3. Replace the manifold assembly.
4. Install the mounting frame to the housing, making sure that the O-rings (keys 45 and 51) are in place.
5. Install the main electronics to the mounting frame, making sure that the pressure sensor seal (key 16) is in place.
6. Tighten the self-tapping screw on the Interconnect Board.
7. Install the primary shield (key 37) with three screws.
8. Recalibrate the instrument and install the cover.
Replacing the Pneumatic Relay
The pneumatic relay is fastened to the mounting frame. There are two versions, 0 to 3.4 bar (0 to 49 psig), indicated by
a white label, and 3.5 to 7 bar (50 to 100 psig), indicated by a green label.
Note
After pneumatic relay replacement, calibrate the digital valve controller to maintain accuracy specifications.
Removal
1. Remove the main cover.
2. Remove three screws that hold the EMI shield and remove the shield (refer to figure 4‐1).
3. Remove the three screws holding the electronics board to the mounting frame.
4. Pull the main electronics straight off of the mounting frame. The board is electrically connected to an
interconnecting board with a rigid connector.
5. Remove the two screws holding the mounting frame to the instrument housing (refer to figure 4‐2).
6. Pull the mounting frame straight out. The interconnecting board is electrically connected to the termination board
with a rigid connector.
7. Remove the two screws holding the pneumatic relay to the mounting frame.
8. Pull the pneumatic relay straight out.
Assembly
When installing a new pneumatic relay, follow the reverse procedure as outlined above and recalibrate the instrument.
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