Burkert 8694 - Positioner Structure and Control Functions

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System description
5.4 Structure of the positioner
The positioner Type 8694 consists of the micro-processor controlled electronics, the position sensor and the
pilot valve system. The positioner is operated via 2 buttons and a 4-pole DIP switch. The pilot valve system
for single-acting actuators consists of 2 solenoid valves.
5.4.1 Representation
LED
Electrical connection
(cable gland M16 x 1.5
or circular plug-in connector M12 x 1)
Buttons
DIP Switches
Transparent cap
Pressure limiting valve
(for protection against
too high internal
pressure in case of error)
Body casing
Pressure supply
connection (label: 1)
Exhaust air con-
nection (label: 3)
Communications
interface
Air intake
lter
(exchangeable)
Additional exhaust air port (label: 3.1)
only for Type 23xx and 2103
withpilotvalvesystemforhighairowrate
(actuator size ø 130)
Basic housing
Figure 2: Structure
english
Type 8694 REV.2