Manual Set Point Adjustment - Emerson Fisher 4194HA Instruction Manual

Instruction Manual
D200156X012
Figure 3‐1. Location of Controller Parts and Adjustments
DRIVE ARM
LOCKING SCREW
PIVOT BRACKET
DRIVE ARM
CONNECTING LINK 1
ZERO ADJUSTMENT
ZERO ADJUSTMENT
LOCKING SCREW
NOTE:
1 ON CONTROLLERS EQUIPPED WITH REMOTE SET POINT
OPTION, THIS IS THE REMOTE SET POINT INDICATOR.
W3688‐1
PROCESS SPAN
ADJUSTMENT
35A7374‐B
SIDE VIEW OF SET POINT / PROCESS

Manual Set Point Adjustment

To adjust the set point, open the controller cover and move the set point indicator until the desired value on the
process differential pressure scale is below the line on the set point indicator. Move the adjustment to the right to
increase the set point and to the left to decrease it.
SPAN
ADJUSTMENT
SUPPLY PRESSURE
GAUGE
REMOTE SET POINT
SPAN ADJUSTMENT
INDICATOR ASSEMBLY
SEE VIEW A
FRONT VIEW
56A9752‐S SHT 1
SIDE VIEW OF CONTROLLER
SHOWING FLAPPER LEVELING SCREWS
4194HA, HB, HC Controllers
SET POINT
ADJUSTMENT
PROCESS
INDICATOR
PROPORTIONAL
BAND INDICATOR
COVER
PROPORTIONAL
BAND ADJUSTMENT
KNOB
OUTPUT
PRESSURE
GAUGE
SCREW 1
SCREW 2
SCREW 3
July 2018
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