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Instruction Manual
D200160X012
4195K Controllers
July 2018
100
3. Adjust the remote set point pressure to 100 percent of the remote set point input range and note the indicator
position relative to the process scale upper limit.
4. If the greatest misalignment is positive (the set point indicator is to the right of the process scale limits), loosen the
linearity screw and move it clockwise in the slot. If the misalignment is negative, move the linearity screw
counterclockwise in the slot.
5. If the misalignment is greater than 1 percent of the process scale span at the lower and upper limits, with one
positive and the other negative, perform the remote set point zero and span adjustment procedure to correct a
span error.
6. Repeat steps 1 through 4 until lower, middle, and upper indications are within
±
1 percent of the process scale
markings.
Auto/Manual Station (suffix letter E) Maintenance
Replacing the Auto/Manual Station
WARNING
Refer to the Maintenance WARNING on page 51.
Refer to figures 7‐1 and 7‐7 for key number locations.
Note
This procedure also permits replacement of the switch manifold O‐rings (key 312), the auto/manual tubing assembly (key 138),
and the frame gaskets (keys 4 and 5).
Disassembly
procedure.
2. Loosen the screw (key 316) that holds the auto/manual station (key 273) to the controller frame.
3. Loosen the two screws (keys 314 and 315) that hold the auto/manual station to the auto/manual tubing assembly
(key 138).
4. Remove the auto/manual station from the controller frame.
5. Remove the switch manifold O‐rings (key 312).
6. Carefully loosen the nut on the relay nozzle tubing assembly (key 18) where it connects to the auto/manual tubing
assembly (key 138). Loosen three screws (keys 34 and 131) and remove the tubing assembly and frame gaskets
(keys 4 and 5).
7. Inspect the gaskets (keys 4 and 5) and O‐rings (key 312) for wear. Replace if necessary.
Assembly
1. Install the gaskets and tubing assembly to the frame. Start, but do not tighten, the three screws (keys 34 and 131)
and the nut on the relay nozzle tubing assembly (key 18).
2. Install the switch manifold O‐rings (key 312) and secure the auto/manual station to the controller frame with the
screw (key 316) and to the tubing assembly (key 138) with the two screws (keys 314 and 315). Do not tighten any
screws.