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S/hart) – Burkert Type 8635 User Manual

Page 95

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8635 - 93

O

PERATING THE

P

ROCESS

C

ONTROLLER

(S/HART)

Xd2

Xd2

Xd2'

Xd2'

to controller

Process
value
(PV)

Process setpoint
(SP)

Control
difference

Dead band

Entering the dead band in %

Insensitivity range with process control

P.CO - DBND
Insensitivity range (dead band) of the process controller

Factory setting: 1%

(relative to the range width of the process value scaled by

SCAL PV und PV )

This function assures that the process controller cuts in only above a certain control difference. The
function reduces wear on the piezoelectric valves in the SIDE Control

(S/HART) and the pneumatic

actuator.

P.CO DBND

DBND XX.X