Glossary
SIPART PS2 with and without HART
284 Operating Instructions, 10/2013, A5E00074631-11
Programs for process automation (e.g. PCS7, WinCC, WinAC, PDM, Step7).
Area in which hazardous potentially explosive gaseous atmospheres build up often, regularly
or over long durations during the normal operation of a device.
Area in which potentially explosive gaseous atmospheres build up occasionally during the
normal operation of a device.
Area in which a potentially explosive gaseous atmosphere normally never builds up or builds
up only for a short while during normal operation of a device.
Zone 22 is an area in which a potentially explosive gaseous atmosphere in the form of a
cloud of combustible dust in air never develops or develops only for a short while during
normal operation.
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