Instruction Manual
D200160X012
4195K Controllers
July 2018
43
Figure 5‐1. Fisher 4195KS Controller Parts and Adjustments Locations (continued)
C0528‐1
SCREW 1
SCREW 3
SCREW 2
SIDE VIEW OF CONTROLLER
SHOWING FLAPPER LEVELING SCREWS
PROCESS
SPAN ADJUSTMENT
REMOTE SET POINT
SPAN ADJUSTMENT
SIDE VIEW OF SET POINT/PROCESS
INDICATOR ASSEMBLY
Adjustments for 4195KS Controllers
Manual Set Point
The set point adjustment adjusts the upper or lower switching point, depending on controller action. To adjust the set
point, open the controller cover, and move the set point adjustment until the pointer indicates the desired value of
pressure on the process pressure scale. Move the adjustment to the right to increase the set point, and to the left to
decrease it. Adjusting the set point does not affect the differential gap setting.
Remote Set Point (Option M)
CAUTION
Do not move the set point manually on controllers with remote set point. Doing so could damage the controller.
If the controller is equipped with remote set point option, vary the remote set point pressure to change the set point.
Increase the pressure to increase the set point, and decrease the pressure to decrease the set point.
Proportional Band (Differential Gap)
The proportional band knob adjusts width of the gap between switching points. Rotate the knob until the desired
value is opposite the line on the proportional band indicator cover.
Changing Controller Action
Controller action can be switched from direct to reverse or vice versa by loosening the screws on the proportional
band indicator cover and moving the cover out so the proportional band knob can be rotated to the desired action.