Instruction Manual
D200158X012
4194S Controllers
July 2018
38
Figure 4-13. Process Pointer Alignment
ALIGNED
W3443‐1
MISALIGNED
W3475‐1
FINE ZERO
ADJUSTMENT
ZERO ADJUSTMENT
LOCKING SCREW
Link Number 2
Note
Link number 2 is made of aluminum for temperature compensation purposes. Do not replace it with a link of other material.
1. Remove the two screws (key 6), and lift off the proportional band indicator cover (key 36).
2. Note where the link is connected. Disconnect the link from process pointer assembly and from the input feedback
beam assembly (key 11). Remove the link.
link to the process pointer assembly only, and in the position in step 2.
4. Adjust the set point manually or with the remote set point pressure to 100 percent of the process scale range. Set
the proportional band between DIRECT and REVERSE.
5. Disconnect link number 1 from the pivot arm, manually position the process pointer to 100 percent on the scale.
6. Adjust the length of link number 2 (by turning the adjusting screw clockwise to increase length, counterclockwise
to decrease length) so that the pin on the end of the link is approximately one‐half of its diameter short of aligning
with the hole in the input feedback beam assembly as shown in figure 4-10.
The adjustment provides the proper tension on the link.
7. Connect the link to the input feedback beam assembly.