9
2 Safety
OZD Profi G12D... ATEX 1 V. 03 07/2014
If the device is installed in zone 1, the housing, in which
the device is installed, must be suitable for the intended
use. Examination certificate as per directive 94/9/EC
must be obtained for the housing.
Installation in housing not examined by Hirschmann
together with the fibre optic coupler is not permitted. For
this, separate certification of a notified body may be
obtained. Following points must be observed/ evaluated:
IP protection class as per IEC/EN 60529
resistance to light as per IEC/EN 60079-0
impact strength as per IEC/EN 60079-0
chemical resistance as per IEC/EN 60079-0
heat resistance as per IEC/EN 60079-04
electrostatics as per IEC/EN 60079-0
If the seal of the housing cover or a seal of the cable
entry is damaged, it should be replaced with a new hous-
ing cover or cable entries of the manufacturer.
1.8 Housing
The device must be zero-potential during installation and
maintenance. Voltage must be applied only after com-
plete assembly and connection of all circuits required for
the operation.
The devices must be connected only to the supply volt-
age printed on the type plate. The devices are designed
only for operation with the safety low voltage. According-
ly, only PELV circuits or optionally SELV circuits with
voltage restrictions as per IEC/EN 60950 must be con-
nected to the supply voltage connections and the sig-
nalling contact. In case that you operate the module with
external voltage: supply the system only with a safety low
voltage as per IEC/EN 60950.
The optical fibres have an inherently safe optical radia-
tion and must be interconnected only with other inherent-
ly safe optical equipment. For this, preferably a similar
device of type OZD Profi G12D... ATEX 1 must be used.
Installation regulations as per IEC/EN 60079-14 (VDE
0165-1) for zone 1 or IEC/EN 60079-15 for zone 2 as well
as directive 99/92 EC must be complied with.
The devices must be installed by a qualified electrician in
consensus with the nationally applicable standards in
zone 1 or zone 2 or zone 21 and zone 22.
Explosion group specified on the housing, the tempera-
ture class and special ambient conditions must be com-
plied with!
Modifications and changes to the device are not permit-
ted.
The device must be operated as per the intended pur-
pose in undamaged and perfect condition!
Only original parts from the manufacturer must be used
as spares.
If foreign bodies enter, these must be removed from the
device before the initial startup!
When carrying any work on the device, observe the
national safety and accident prevention regulations and
warnings specially marked in the operating manual!
For installation and operation of associated equipment,
comply with the applicable safety regulations as per the
ordinance on industrial safety and health and equipment
and Product Safety Act and the generally recognised
rules of the technology!
Before starting the device with the help of technical data,
convince yourself that the operating conditions have
been complied with and all polarities of the connections
have been selected correctly. Also check the auxiliary
power supply and your work area.
1.9 Installation and startup
