Instruction Manual

Instructions manual - English - EN
85
A Appendix - Marking codes
A.1 ATEX Marking
Fig. 139
Ï ÐÐ 2 G Ex d ÐÐC T6 Tfi -40°C to +60°C Gb
Group (surface
device, no mining)
Category (high
protection degree,
the device in this
category can be
installed in zones
1 and 2)
Gas Explosion-proof
housing for po-
tentially explosive
environments
Gas group Gas temperature
classication
Installation temperature range Protection level
of the equipment
for gas
Ï ÐÐ 2 D Ex tb ÐÐÐC T85°C Tfi -40°C to +60°C Db
Group (surface
device, no mining)
Category (high
protection degree,
the device in this
category can be
installed in zones
21 and 22)
Dusts Dust ignition pro-
tection for zone
types 21-22
Dust group Maximum surface
temperature for
dusts
Installation temperature range Protection level
of the equipment
for dust
IP66
IP protection
degree
Tab. 19