VACUUBRAND MZ 2C NT VARIO without controller (o.C.) - Manual (Page 22)

page 22 of 76
` Important information: Equipment marking (ATEX)
VACUUBRAND equipment bearing mark (see rating plate)
` II 3G IIC T3 X
Internal Atm. only
Tech. File Ref.: VAC-EX01
and
VACUUBRAND equipment bearing mark (see rating plate)
` X see manual
For equipment labelled with „
`
X see manual“ the following classifica-
tion according to Directive 94/9/EC (ATEX) is valid:
`
II 3G IIC T3 X,
Internal Atm. only, Tech. File Ref.: VAC-EX01.
The classification II 3G IIC T3 X according to ATEX is only valid for the in-
ner part (wetted part, pumped gas or vapor) of the equipment. The equip-
ment is not suitable for use in external, potentially explosive atmospheres
(environment).
The overall category of the equipment depends on the connected com-
ponents. If the connected components do not comply with the classifi-
cation of the VACUUBRAND equipment, the specified category of the
VACUUBRAND equipment is no longer valid.
Vacuum pumps and vacuum gauges in category 3 are intended for con-
nection to equipment in which during normal operation explosive atmo-
spheres caused by gases, vapors or mists normally don’t occur; or, if they
do occur, are likely to do so only infrequently and for a short period only.
Equipment in this category ensures the requisite level of protection dur-
ing normal operation.
The use of gas ballast or the operation of venting valves is only permit-
ted if thereby explosive atmospheres normally don’t occur in the interior
of the equipment or, if they do occur, are likely to do so only infrequently
and for a short period.