KROHNE H250 M40 ATEX II2G Ex i EN - Manual (Page 7)

DEVICE DESCRIPTION
2
7
H250 M40
www.krohne.com 08/2012 - 4001481101 MA H250/M40-Ex-II2G-AD R01 en
2.6 Protection types
The variable area flowmeter is designed with protection type intrinsic safety, protection level "ia"
acc. to EN 60079-11.
The marking is: II 2G Ex ia IIC T6 Gb or II 2G Ex ia IIB T6 Gb II 2G Ex ia IIC T6 Gb or II 2G Ex ia IIB T6 Gb II 2G Ex ia IIC T6 Gb or II 2G Ex ia IIB T6 Gb II 2G Ex ia IIC T6 Gb or II 2G Ex ia IIB T6 Gb
The marking contains the following information: The marking contains the following information: The marking contains the following information: The marking contains the following information:
II IIII II Group II explosion protection
2222 Equipment category 2
G G G G Gas explosion protection
Ex ia Ex ia Ex ia Ex ia Intrinsically safe, level of protection "ia"
IIC IIC IIC IIC Gas group, Suitable for gas groups IIC, IIB and IIA
IIB IIB IIB IIB Gas group, Suitable for gas groups IIB and IIA
T6 T6 T6 T6 Temperature class, suitable for temperature classes T6 ... T1
Gb Gb Gb Gb EPL, suitable for zone 1
AD_H250_M40_II2G_R01_en_4001481101_PRT.book Page 7 Wednesday, August 1, 2012 8:00 AM