Function.diagram; Diagram Illustrating Single-Acting Actuator - Burkert 8692 Operating Instructions Manual

6.2 Function diagram
6.2.1 Diagram illustrating single-acting actuator
The black lines in "Figure 3" specify the function of the position controller circuit in Type 8692.
The grey part of the diagram indicates the additional function of the superimposed process control circuit in Type
8693.
Process set-point
value
External position
set-point value
Type 8692, 8693
Pneumatic actuator
(single-acting)
Figure 3: Function diagram
18
Process actual value
Process
Set-point position
controller
Positioner
Actual
position
Control system
Position
sensor
Valve
(actuator)
english
Control system
1: Aeriation valve
2: Bleed valve
1
Compressed-
air supply
2
Exhaust air
Process actual value
(flow, pressure, level, temperature, et cetera.)
Type 8692, 8693
Description of System
Sensor