For Use In Hazardous Areas - Siemens SIPROCESS GA700 Compact Operating Instructions

2.3

For use in hazardous areas

Unsuitable device for the hazardous area
Explosion hazard
• Only use devices that have been approved for use in the intended hazardous area and are
Use outside the permitted voltage limits
Explosion hazard
• Only use the device within the voltage limits specified on the nameplate.
Formation of explosive sample gas mixtures
Explosion hazard
Air in the gas path can cause an explosion during the introduction of flammable gas mixtures
into the OXYMAT 7.
• Prior to the introduction of flammable sample gas mixtures, flush the gas path in the
Vibrations at the installation location
Explosion hazard
For ignition protection type Ex ec and Ex py, vibrations of more than 5 m/s² can cause an
explosion.
• Make sure that the device is installed in a low-vibration location.
Note
Pollution degree class when using the ignition protection type Ex e
When using the ignition protection type Ex e, pollution degree 2 must be complied with inside
the device (in accordance with IEC 60664-1).
Devices in explosion-proof design
Compact Operating Instructions, 01/2022, A5E35134047-11
WARNING
labeled accordingly.
WARNING
WARNING
analyzer and the gas line with inert gas when flammable gas mixtures are introduced, as
follows:
– into the rack unit for any pressure
– into the wall-mounted device from a pressure above 1100 hPa
WARNING
Safety instructions
2.3 For use in hazardous areas
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