Endress+Hauser RN 221N Mode D'emploi page 5

Operation Instruction
XA005R/09/
51001907
PTB 00 ATEX 2018
Associated Documentation
Operating Instruction:
KA124R/09/
Technical Information:
TI073R/09/
Active barrier
RN 221N
Safety instructions
for electrical apparatus certified
for use in explosion-hazardous areas
Designation according to Directive 94/9/EC:
– Equipment Group II
– Hazard: Category 1
(associated apparatus)
– For explosive atmospheres caused by gases,
dusts, mists or vapours
Allocation of hazardous zones at the mounting points to explosion protecti-
on category of the devices or sensors:
Hazardous zone at the mounting point
Hazard due to gases, mists or vapours
Hazard due to gases, mists or vapours
Hazard due to gases, mists or vapours
Hazard due to combustible dusts
Hazard due to combustible dusts
Hazard due to combustible dusts
Designation of the explosion protection:
– Electrical apparatus with explosion protection
to European standard
(associated apparatus)
– Type of protection
– Explosion group
II (1) GD
Category as per
Directive 94/9/EU
Zone 0 1G
Zone 1 2G
Zone 2 3G
Zone 20 1D
Zone 21 2D
Zone 22 3D
[EEx ia] IIC