Siemens SIPROCESS GA700 Compact Operating Instructions page 22

Safety notes
2.5 Use in hazardous areas
Use in hazardous area
Risk of explosion.
• Only use equipment that is approved for use in the intended hazardous area and labeled
• Do not use devices that have been operated outside the conditions specified for hazardous
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
Maintenance during continued operation in a hazardous area
There is a risk of explosion when carrying out repairs and maintenance on the device in a
hazardous area.
• Isolate the device from power.
- or -
• Ensure that the atmosphere is explosion-free (hot work permit).
22
WARNING
accordingly.
areas. If you have used the device outside the conditions for hazardous areas, make all Ex
markings unrecognizable on the nameplate.
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 at a pressure above 100 hPa (rel.)
WARNING
SIPROCESS GA700 rack and wall mounted devices
Compact Operating Instructions, 06/2023, A5E35134047-AB