Operation Manual

28 GMC-I Messtechnik GMBH
Electrical Safety
Safety class II per IEC/EN 61010-1:2010
/VDE 0411-1:2011
Measurement category 50 V CAT I
Contamination degree 2
EX marking CE 0080
II 2 G Ex ia IIA T4 Gb
Ex = prototype tested
II = Device group
2 = Device category
G = Atmosphere (gas)
Ex = conforms to European
Ex standards
ia = Type of protection
(intrinsic safety)
IIA = Explosion category
T4 = Temperature class
Gb = Equipment Protection
Level (EPL)
Tam b. = – 10 C ... +50 C
(Tamb. = ambient temperature)
Prototype test certificate INERIS 05ATEX0040
INERIS = Inspection and Certifi-
cation Authority
05 = Year
ATEX = Guideline
(Atmospheres Explosives)
0040 = Test Report No.
Serial number (fabrication number)
X Y 123456 X = year of manufacture:
P=2005, Q=2006, R=2007, ...
Y = month of manufacture
January A
February B
March C
April D
May E
June F
July G
August H
September I
October J
November K
December L
123456 = serial number
PG123456 means for example = device was built in July 2005