Balluff BAM PC-OS-024-50K-1 Betriebsanleitung Seite 17

BAM PC-OS-024-_ _ K-1
Protective Housing
ATEX safety instructions (continued)
Use and testing
Device category and suitability II
The protective housing as a piece of equipment is divided
into Equipment Category II, i.e. for all explosion hazard
areas except for potentially explosive areas with the
exception of mine workings susceptible to firedamp. It may
be used in accordance with the following description in
areas subject to dust explosions.
Dust explosion protection II 3D,
Equipment Protection Level (EPL) Dc
The Equipment Category II 3D with EPL Dc includes
equipment with "increased" protection level for use
in flammable dust atmospheres where there is no ignition
hazard during normal operation and which has additional
protection measures which ensure that there is no
danger of ignition when expected fault conditions occur.
Protection by enclosures tc
A rating of tc means that no combustible dust can enter.
Dust Group IIIC
Dust Group IIIC includes possible use with conductive
dusts, non-conductive dust and combustible lint.
Temperature Class T90°C
The temperature specification T90°C indicates that the
surface temperature of the uncooled housing during
normal operation lies within the permissible specification
under all conditions at maximum 90 °C.
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Notes for installation, operation and repair
– Only sensors from the BOS 23K-.../BOD 23K-... and
BOS 50K-.../BOD 50K-... series may be installed in
the housing.
– Refer to Section 4 for installation.
– The protective housing may be installed on the
machine in any orientation.
– The connection cable must be suitable for the
application area and routing must be according to the
requirements (fixed installation, protected against
damage, etc.).
– The O-Ring Ø73 X Ø3 FKM75 (BAM PC-OS-024-23K-1)
and Ø93 X Ø3 FKM75 (BAM PC-OS-024-50K-1) must
be correctly installed and dust sealing of the housing
ensured.
– The protective housing is attached to the machine
using four M5 screws.
– The cover screw may be opened only for startup when
there is no dust atmosphere present.
– During operation the cover screw must be closed so
that it remains dust-tight.
– Dust buildup must be regularly removed.
– In explosion hazard areas the protective housing may
be used only at a permissible ambient temperature of
–5...+70 °C.
– In accordance with the conditions of use the protective
housing must be regularly inspected for damage.
– If a malfunction occurs or damage becomes evident,
immediately take the system out of service for repair.
– Damaged parts must be replaced only by original
replacement parts.
– The plugs may be plugged in or disconnect only when
de-energized.
The following warning label is enclosed and must be
attached in a clearly visible manner:
– The device has to be protected against impacts with
high impact energy.
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