Compact Operating Instructions in accordance with EN 61010-1 and EN 60079-0
A5E45779389002-01, 09/2018
29
5.1.2
Operation in hazardous areas
WARNING
Improper commissioning in hazardous areas
Device failure or risk of explosion in hazardous areas.
•
Do not commission the device until it has been mounted completely and connected in accordance with the information
•
Before commissioning take the effect on other devices in the system into account.
WARNING
Loss of explosion protection
Risk of explosion in hazardous areas if the device is open or not properly closed.
•
Close the device as described in Connecting (Page 16).
WARNING
Opening device in energized state
Risk of explosion in hazardous areas
•
Only open the device in a de-energized state.
•
Check prior to commissioning that the cover, cover locks, and cable inlets are assembled in accordance with the
directives.
Exception: Devices having the type of protection "Intrinsic safety Ex i" may also be opened in energized state in hazardous
areas.
WARNING
Absence of pre-purging
Risk of explosion in hazardous areas.
Explosive atmosphere existing in a device with pressurized enclosure (type of protection Ex p) can result in an explosion
during commissioning.
•
Ensure that the device is pre-purged before it is commissioned.
•
Ensure that purging time, quantity and medium are correctly observed. Refer to the information in Technical
specifications (Page 37).
