Burkert 1067 - Description

1067
POSITIONER TYPE 1067
E-3-
2 DESCRIPTION
2.1 Characteristics and possible applications (overview)
The type 1067 positioner is an electropneumatic position controller for pneumatically actuated
continuous valves. The device includes the following main functional groups: a feedback/positional
transducer, an electropneumatic system and a microprocessor electronic system. The feedback/
positional transducer measures the actual position of the continuous valve. The microprocessor
electronic system continuously compares the actual position (actual value) with a desired position
value that was preset via the standard signal input and supplies the result to the position controller.
If an error exists, the electropneumatic system causes the actual position to be appropriately corrected.
The type 1067 positioner can be fitted to various continuous valves (e.g. valves with piston, membrane
or rotary drives and with single or double action). Two variant forms of the basic device are offered
that differ in their fixing options and feedback/positional transducers. In variant 1, an internal feedback/
positional transducer is used that takes the form of a rotary potentiometer. In variant 2, an external
linear potentiometer serves as feedback/positional transducer.
The positioner also implements a PID controller by means of which, in addition to position control,
process control (e.g. level, pressure, flow or temperature control) can be achieved in the form of
sequence control.
A liquid-crystal display and a keypad with three keys are provided for operating the positioner. An
operating concept with the following graded operating levels has been implemented:
- Process operation
This level allows switching between automatic and manual operation, and enables manual actuation.
- Configuration
Configuration level is used to specify certain basic functions when the positioner is taken into service
and, if necessary, to configure additional functions.