Vega ATEX Safety Instructions page 51

can be mounted and operated within hazardous areas of zone 2.
For zone 2: The equipment must be mounted in a housing that has been tested according to
IEC 60079-0 and meets the requirements of protection class IP54.
The device may then only be installed in locations that offer adequate protection against the ingress
of solid foreign objects or liquids.
The suitability of the housing is subject to the approval of the local authorities responsible at the
time of installation.
The device may only be used in an area with a pollution degree of 2 or better.
The housing used must be labelled with the following warning:
WARNING – EXPLOSION HAZARD: DO NOT CONNECT OR DISCONNECT WHEN ENERGIZED
If the intrinsically safe circuit is lead into dust-explosive areas of zone 20 or 21, please make sure
that the instruments which are connected to these circuits meet the requirements of EPL Da or
EPL Db and are certified respectively.
9
VEGAMET 841, 842, 861, 862
IECEx