2
DEVICE DESCRIPTION
8
OPTIBAR 5060
www.krohne.com
04/2021 - 4003591803 - AD OPTIBAR 5060 Exia R03 en
2.5 Protection types
The pressure transmitter is designed with protection type intrinsic safety, protection level "ia"
according to EN 60079-11 or IEC 60079-11.
The marking according to ATEX is:
II 1G, 1/2G, 2G Ex ia IIC T6…T1 Ga, Ga/Gb, Gb
The marking according to IECEx is:
Ex ia IIC T6...T1 Ga, Ga/Gb, Gb
The marking contains the following information:
II
Explosion protection, group II
1
Equipment category 1
G
Gas explosion protection
Ex ia
Intrinsically safe, level of protection "ia"
IIC
Gas group, suitable for gas groups IIC, IIB and IIA
1/2
Equipment category 1/2
2
Equipment category 2
Ga
EPL, suitable for zone 0
Ga/Gb
EPL, suitable for zone 0 / zone 1
Gb
EPL, suitable for zone 1
T6...T1
Temperature class, suitable for temperature classes T6...T1
Table 2-1: Protection types
