Elgas DATCOM, Operating Instructions Manual

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2
Safety
19
2.3 Special Conditions for Use
ATTENTION!
Under certain extreme circumstances, an electrostatic charge capable of
explosion initiation can form on the plastic box. The device must not be
installed in places where external conditions could result in electrostatic
charge. The device may be wiped only with a damp cloth.
2.4 Risks of Use
The enclosure of the device is made of polycarbonate. A polyester foil keypad is located on the
top cover. In some extreme cases, an electrostatic charge may accumulate on the surface of the
enclosure, whose energy can cause initiation of the surrounding explosive atmosphere.
To avoid the risk of ignition due to electrostatic charge, we recommend observing the following
procedure:
 If the device is used in potentially explosive atmospheres, it must not be installed in a
location where external conditions can cause electrostatic charge generation.
 The device may be cleaned only with a damp cloth.
2.5 Connecting External Devices
Intrinsically safe signals run to all the connection terminals of the device. When connecting
external devices to these terminals, the intrinsic safety principles must be followed. The
equipment must be connected in accordance with applicable standards, in particular:
EN 60079-25 ed.2, Explosive atmospheres - Part 25: Intrinsically safe electrical systems;
EN 60079-14 ed.4, Explosive atmospheres- Part 14: electrical installations design, selection and
erection;
EN 60079-0 ed.4, Explosive gas atmospheres, Part 0: Equipment - General requirements;
EN 60079-11 ed.2 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i".
The intrinsic safety parameters of the connection terminals are specified in Section 4. The
recommended cable types are listed in Section 5.6.