KROHNE OPTIFLEX 2200 IECEX - Manual (Page 5)

GENERAL SAFETY INFORMATION
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OPTIFLEX 2200 C/F
www.krohne.com 04/2013 - 4000861902 - AD IECEX OPTIFLEX2200 R02 en
1.4 Equipment protection levels (EPL)
1.4.1 Ex ia-approved devices
The Ex ia-approved device is suitable for use in potentially explosive atmospheres of all
flammable substances in Gas Groups IIA, IIB and IIC when fitted with appropriate options. It is
certified for applications for which an EPL of Ga/Gb or Gb is necessary.
The Ex ia-approved device is also suitable for use in potentially explosive atmospheres of all
flammable substances in Dust Group IIIA, IIIB and IIIC when fitted with appropriate options. It is
certified for applications for which an EPL of Da/Db or Db is necessary.
1.4.2 Ex dia / Ex ia tb-approved devices
The Ex dia-approved device is suitable for use in potentially explosive atmospheres of all
flammable substances in Gas Groups IIA, IIB and IIC when fitted with the appropriate options. It
is certified for applications for which an EPL of Ga/Gb or Gb is necessary.
The Ex ia tb-approved device is suitable for use in potentially explosive atmospheres of all
flammable substances in Dust Group IIIA, IIIB and IIIC when fitted with the appropriate options. It
is certified for applications for which an EPL of Da/Db or Db is necessary.
1.4.3 Ex ic-approved devices
The Ex ic-approved device is suitable for use in potentially explosive atmospheres of all
flammable substances in Gas Groups IIA, IIB and IIC when fitted with appropriate options. It is
certified for applications for which an EPL of Gc is necessary.
The Ex ic-approved device is also suitable for use in potentially explosive atmospheres of all
flammable substances in Dust Group IIIA, IIIB and IIIC when fitted with appropriate options. It is
certified for applications for which an EPL of Dc is necessary.
The Ex ic approval is available only for devices with the FOUNDATION fieldbus or PROFIBUS PA
option.