5Kb Series Proportional-Plus-Re- Set Controllers And 4195Kc Series Pro- Portional-Plus-Reset-Plus-Rate Control- Lers; Adjustments For 4195Kb And Kc Series Controllers; Manual Set Point Adjustment; Remote Set Point (Suffix Letter M) Adjustment - Fisher 4195 KB Series Instruction Manual

SUPPLY RESET
PRESSURE GAUGE ADJUSTMENT
W6833 / IL
Section 4
4195KB Series Proportional-
Plus-Reset Controllers And 4195KC
Series Proportional-
Plus-Reset-Plus-Rate Controllers
Adjustments for 4195KB and KC Series
Controllers
This section includes descriptions of adjustments and
procedures for prestartup, startup, and calibration. Ad-
justment locations are shown in figures 4–1 and 4–3.
To better understand the adjustments and overall con-
troller operation, refer to the principle of operation sec-
tion and to the schematic diagrams in figures 4–5
through 4–9. Unless otherwise noted, key numbers
given in this section are found in figure 5–24.

Manual Set Point Adjustment

Adjust the set point by opening the controller cover
and moving the set point indicator until the line on the-
set point indicator is over the desired value on the pro-
cess pressure scale. Move the indicator to the right to
increase the set point and to the left to decrease it.
OUTPUT PRESSURE
GAUGE
Figure 4–1. 4195KB and KC Series Controller Adjustment Locations
4195KA, KB, and KC Series
SET POINT
INDICATOR
W3679 / IL
PROCESS POINTER
PROPORTIONAL BAND
ADJUSTMENT
ANTI-RESET WINDUP
DIFFERENTIAL RELIEF
VALVE (SUFFIX LETTER F)
RATE
ADJUSTMENT
W3599–1 / IL
Adjusting the set point does not affect the proportional
band setting.
If the controller is equipped with the optional internal or
external set point adjustment, turn the adjustment
knob clockwise to increase the process set point and
counterclockwise to decrease the process set point.
Remote Set Point (suffix letter M)
Adjustment
Do not manually move the set point in-
dicator on a controller with remote set
point. Manually moving the set point in-
dicator could damage the controller.
If the controller is equipped with remote set point (suf-
fix letter M), vary the remote set point pressure to
change the set point. Increase the pressure to in-
crease the set point and decrease the pressure to de-
crease the set point.

Proportional Band Adjustment (PB ADJ)

The proportional band determines the controller output
sensitivity. The proportional band adjustment is
METAL BALL
SWITCHING ZONE
INDICATOR
LOADER KNOB
AUTO/MANUAL
SWITCH
RESET
ADJUSTMENT
CAUTION
4–1