Mixer design
category (inside): 2D
outside classification: 2G
Explosion properties
Ignition temperature ZT [°C] >420
Smoldering temperature
(settled dust up to 5 mm)
GT [°C] >275
Minimum ignition energy
(without inductivity)
Emin [mJ] > 50
The marking of the equipment contents the following information:
inside : Ex II 2
outside : Ex II 2G IIa T3
According to the Directive 1999/92 EG , the plant operator of the
mixing system has to issue an explosion protection document for
the interior and outside area of the plants.
Before Start up the equipment category is to be aligned with the
area classification. Possibly the operator must take additional mea-
sure to prevent a potential explosive atmosphere.