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Burkert电磁阀
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Burkert定位器


8635定位器


 
Electropneumatic positioner for
pneumatically actuated process valves
?II (1) 2 G EEx ia IIC T6 approval
?PROFIBUS PA
?HART protocol
The SideControl Positioner Type 8635 is an
electropneumatic positioner for pneumatically
actuated process valves with linear or part-turn
actuators. It is available in the versions 8635 PA and
8635 S. Both versions are executed in twoconductor
technology. With Type 8635 PA,
communication and energy supply are via
PROFIBUS PA whereas with Type 8635 S, the input
signal serves for setpoint transmission and energy
supply of the device simultaneously. Alternatively
with Type 8635 S, communication may be via HART
protocol.
Signal processing, control and actuation of the
internal positioning systeme are accomplished with
microprocessor-controlled electronics. The software
function Autotune implemented therein enables
automatic adaptation of the positioner to the control
valve in use.
The positioner is parametrized and operated
comfortably via three operating keys and a plaintext
display, or with Engineering-Tools via
PROFIBUS PA (Type 8635 PA) or optionally via
HART protocol (Type 8635 S). It is possible to set up
a decentralized control system if a process controller
with PID characteristics is used (Type 8635 S).
As an option, the SideControl Positioner Type 8635
can be supplied with approval for use in the Ex area
(Zone 1) to ATEX. Because of its compact and
robust design, the housing is suitable for use in
chemical and process engineering.
 
 
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