1
GENERAL SAFETY INFORMATION
6
OPTIFLEX X200
www.krohne.com
09/2018 - 4006564001 - AD IECEX OPTIFLEX x200 R01 en
OPTIFLEX 7200 with a ceramic process seal system and a Kalrez
®
gasket
OPTIFLEX 8200 with a PTFE process seal system with an EPDM gasket and a Ø2 mm HT
or Ø2 mm HT/HP probe
•
Ex ia IIIC T85
°
C...T250
°
C Da/Db
OPTIFLEX 7200 with a ceramic process seal system and an FPM/FKM gasket
OPTIFLEX 7200 with a PTFE process seal system (OPTIFLEX 1300 version) and an
FPM/FKM or Kalrez
®
gasket
OPTIFLEX 6200 with an FPM/FKM or Kalrez
®
gasket
•
Ex ia IIIC T85
°
C...T200
°
C Da/Db
OPTIFLEX 3200/6200/7200/8200
All other versions
•
Ex ia IIIC T85
°
C...T150
°
C Da/Db
The Ex ia-approved device is suitable for use in potentially explosive atmospheres of all
flammable substances in Dust Groups IIIA, IIIB and IIIC. It is certified for applications requiring
EPL Da/Db or EPL Db equipment, when fitted with the appropriate options.
EPL Da/Db equipment is used in zone 20, but it is installed in the boundary wall between zone 20
and zone 21 (the probe is in zone 20 and the signal converter is in zone 21). EPL Db equipment is
used in zone 21.
1.4.2 Ex ia/db- and Ex ia/tb-approved devices
The Ex ia/db-approved device has the markings that follow for Gas Groups:
OPTIFLEX 8200 with a ceramic process seal system and a Kalrez
®
gasket
•
Ex ia/db IIC T6...T1 Ga/Gb
OPTIFLEX 8200 with a PTFE process seal and a 2 mm HT or 2 mm HT/HP probe
OPTIFLEX 7200 with a ceramic process seal system and a Kalrez
®
gasket
•
Ex ia/db IIC T6...T2 Ga/Gb
OPTIFLEX 3200/6200/7200/8200
All other versions
•
Ex ia/db IIC T6...T3 Ga/Gb
INFORMATION!
Remote (F) or Remote with Sensor Extension (D) version
Remote (F) or Remote with Sensor Extension (D) version
Remote (F) or Remote with Sensor Extension (D) version
Remote (F) or Remote with Sensor Extension (D) version
Use the markings shown at the top of this page for the sensor (probe housing). The converter has
the marking that follows:
•
Ex ia [ia Da] IIIC T85
°
C...T135
°
C Db