Emerson Fisher 4194HA Instruction Manual page 9

Instruction Manual
D200156X012
Process pressure connections are 1/4 or 1/2 NPT (optional). When installing process piping to the differential pressure
unit attached to the controller, follow accepted engineering, installation, and safety practices to insure the safe and
accurate transmission of the process differential pressure to the differential pressure unit. Install shutoff valves, vents,
drains, or seal systems as required by accepted practices.
Figure 2‐1. Right Side View of Controller
NOTE:
1 LOW PRESSURE CONNECTION ON A BARTON 199
DIFFERENTIAL PRESSURE UNIT.
W3635-1
Figure 2‐2. Connections
1/4 NPT REMOTE SET
POINT CONNECTION
TOP VIEW
FRONT VIEW
NOTE:
1 HIGH PRESSURE CONNECTION ON A BARTON 199 DIFFERENTIAL PRESSURE UNIT.
18A5903‐B
A3000-1
BARTON 199
DIFFERENTIAL
PRESSURE UNIT
1/2 NPT
PRESSURE CONNECTION
1/4 NPT PRESSURE
CONNECTION
PIPESTAND MOUNTING
BRACKET
PIPESTAND
SET SCREW
(3 REQ'D)
REMOTE SET POINT
CONNECTION
1/2 NPT
1
1/4 NPT
1
LEFT SIDE VIEW
4194HA, HB, HC Controllers
1
1
1/4 NPT VENT
1/4 NPT
2 HOLES
BOTTOM VIEW
July 2018
1/4 NPT
OPTIONAL EXTERNAL
FEEDBACK CONNECTION
SUPPLY PRESSURE
CONTROLLER
OUTPUT PRESSURE
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