3
INSTALLATION
18
OPTIBAR 5060
www.krohne.com
04/2021 - 4005260702 - AD OPTIBAR 5060 Exta R02 en
3.1.2 Version with remote housing
Category 1/2/-D equipment
Figure 3-5: Electronics and connection housing in safe area
1
Zone 21
2
Ex ia
3
Ex ia
4
Zone 20
5
Safe area (-)
The connecting line is an intrinsically safe signal circuit.
There are no special Ex technical requirements (plastic housing, electro-polished stainless steel housing and plug con
-
nectors are permitted) for the electronics and terminal housing, cable entries and the filter element.
Figure 3-6: Electronics and connection housing as well as connecting cable in safe area
1
Zone 20
2
Ex ia
3
Safe area (-)
The connecting line is an intrinsically safe signal circuit.
There are no special Ex technical requirements (plastic housing, electro-polished stainless steel housing and plug con
-
nectors are permitted) for the electronics and terminal housing, cable entries and the filter element.
