2
Assembly and Function
2.1 Field of application
Page 14
Docu-No.: 1090020601-EN Rev. 1.2.1
2
Assembly and Function
2.1
Field of application
KCM XPC3 stands for
K
-TRON
C
ontrol
Module
and XPC3 for
E
xp
losion-protection of
C
ategory
3
.
The KCM is a control and a drive module for K-Tron feeders. The KCM
is normally mounted directly on the feeder. It can also be mounted
remotely.The KCM can used as controller for feeding processes which
require explosion protection in zone 22.
2.1.1
Explosion proof marking
The marking on the device shows the device category. The declara-
tion of conformity shows the zone in which the device may be used.
2.1.2
Zones and device categories (gas)
The owner is responsible for ensuring that the system is installed in
the intended zone. The corresponding category is described in the
declaration of conformity.
Zone
Description
Use of KCM
Zone 0
An area in which an explosive atmos-
phere, i.e. a mixture of air and flamma-
ble gases, vapours or mists is either fre-
quently or constantly present over an
extended period.
Not allowed
Zone 1
An area in which a dangerous mixture of
air and flammable gases, vapours or
mists sometimes forms during normal
operation, constituting an explosive at-
mosphere.
Not allowed
Zone 2
An area in which a dangerous mixture of
air and flammable gases, vapours or
mists constituting an explosive atmos-
phere usually does not exist or only for
short periods.
Not allowed
