Safety instructions
for electrical apparatus certified
for use in explosion-hazardous areas
Hauser
+
Endress
The Power of Know How
Operating Instructions
XA202F-B
71003665
EG 02 002-a
Associated Documentation
Technical Information
TI 189F
prosonic
FDU 80(F), FDU 81(F), FDU 82, FDU 83,
FDU 84, FDU 85, FDU 86
Designation according to Directive 94/9/Ec:
II 3 D IP 68 T 90 °C
T 150 °C
– Equipment Group II
– Hazard: Category 3
– For explosive mixtures of air and dust
– Degree of protection to EN 60529
– Max. surface temperature of the sensor
Allocation of hazardous zones at the mounting points to explosion protection cate-
gory of the devices or sensors:
Hazardous zone at the mounting point
Category as per Directive 94/9/EC
Hazard due to combustible dusts
Zone 20
1D
Hazard due to combustible dusts
Zone 21
2D
Hazard due to combustible dusts
Zone 22
3D
