Remote Set Point (Suffix Letter M) Adjustment; Proportional Band Adjustment (Pb Adj) - Emerson Fisher 4194HA Instruction Manual

4194HA, HB, HC Controllers
July 2018

Remote Set Point (suffix letter M) Adjustment

CAUTION
Do not manually move the set point indicator on controllers with remote set point. Moving the set point indicator could
damage the controller.
If the controller is equipped with the remote set point option (figure 3‐2), 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.
Figure 3‐2. Parts and Adjustments, Remote Set Point Option
PIVOT
ASSEMBLY A
36A9751‐C
B1668‐4

Proportional Band Adjustment (PB ADJ)

The proportional band adjustment determines the output sensitivity of the controller. The proportional band knob is
marked in percentages of process differential pressure required to drive the controller from zero output to full output.
For example, a typical 4194H unit offers 0.2 to 1.0 bar (3 to 15 psig) output. Furthermore, this controller comes
equipped with a differential pressure unit capable of sensing a process pressure differential ranging from 0 to 1.0 bar
14
GUIDE FLEXURE
MOUNTING SCREW
LINK A
MOUNTING
TIE BAR SCREW
REMOTE SET POINT ZERO ADJUSTMENT SCREW
ZERO ADJUSTMENT LOCKING SCREW
FRONT VIEW
DRIVE FLEXURE
ADJUSTMENT
LOWER TRAVEL
SCREW
STOP
UPPER TRAVEL
LINK B STOP
LINEARITY
ADJUSTMENT
PIVOT
ASSEMBLY B
CAPSULES
Instruction Manual
D200156X012
SIDE VIEW