Rh eo n i k M esst ech n i k
RE V . L O ct o b er 2014
.
RHEONIK Coriolis Flowmeter
Operation Manual RHE 07, 08, 11
Appendix
450°C 842°F
300°C 572°F
200°C 392°F
135°C 275°F
100°C 212°F
85°C 185°F
EN
IEC/EN
IIA
IIB
IIC
EN
T1
T2
T3
T4
T5
T6
Ignition temperature
Maximum surface temperature
Explosion groups
- Ammonia
- Acetone, aircraft fuel,
benzene, crude oil, diesel,
ethan, acetic acid, ether,
gasoline, heating oil,
hexane, methane, propane
Gases and vapours
- Ethylene, isoprene, town gas
- Acetylene, hydrogen,
carbon dioxide
o Oil encapsulated
p Purged
q Sand encapsulated
d Explosion proof
e Increased safety
i Intrisic safety (ia, ib)
n non flammable unit
m Cast encapsulated
s Special protection
Type of protection
Explosion protected equipment
Ex
IIC
T6
ia
2. Additional Marking: