Burkert Type 8694 - Manual (Page 13)

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Systemdescription
5.4. Structure of the positioner
The positioner Type 8694 consists of the micro-processor controlled electronics, the position measuring system
and the control system. The device is designed using three-wire technology. The positioner is operated via 2 keys
and a 4-pole DIP switch. The pneumatic control system for single-acting actuators consists of 2 solenoid valves.
5.4.1. Representation
LED
Screw-
type
terminals
Pressure supply connection
(label: 1) Exhaust air con-
nection (label: 3)
Electrical connection
(cable gland M16 x 1.5
or circular plug-in connector M12 x 1)
Body casing removed: Buttons
DIP Switches
LED
Transparent cap
Pressure limiting valve
(for protection against too
high internal pressure in
case of error)
Air intake filter
(exchangeable)
Body casing
Version 1 Version 2
Communications
interface
Pressure supply
connection (label: 1) Exhaust air con-
nection (label: 3)
Communications
interface
Air intake
filter
(exchangeable)
Additional exhaust air port (label: 3.1)
only for Type 23xx and 2103
with pilot-operated control system for high air output
(actuator size ø 130)
Figure 2: Structure
English
Type 8694