Observe the following sections:
● Section "Permitted activities in hazardous areas (Page 144)"
● Section "Maintenance during operation (Page 144)"
● Section "Replace pressure compensation element (Page 145)"
11.3.3.2
Permitted activities in hazardous areas
DANGER
Explosion hazard
Observe the safety information in section "Use in hazardous areas (Page 29)".
Activities
Zone 2
Zone 22
Maintenance of the closed housing during operation (visual
checks)
Permitted
Permitted
Damp cleaning of the closed housing
Permitted
Permitted
Opening the housing
Temporarily permitted for
the permitted maintenance
work
Not permitted
Maintenance during operation (visual checks with housing
opened)
Permitted
Not permitted
CFU PA: Wiring of fieldbus connections
Permitted
Not permitted
Wiring except fieldbus connections (e.g. power supply)
Not permitted
Not permitted
Replacing cable glands
Permitted
Not permitted
Replace pressure compensation element
Permitted
Not permitted
11.3.3.3
Maintenance during operation
DANGER
Explosion hazard
Observe the safety information in section "Use in hazardous areas (Page 29)".
Carry out maintenance every 6 months in the hazardous area.
WARNING
Zone 22
CFU housing must not be opened.
Compact Field Unit in the housing for use in a hazardous area
11.3 Configuration with SIMATIC CFU with aluminum housing
SIMATIC CFU
144
Commissioning Manual, 08/2019, A5E39252870-AD
Summary of Contents for Simatic CFU
Page 8: ...Table of contents SIMATIC CFU 8 Commissioning Manual 08 2019 A5E39252870 AD ...
Page 10: ...Security information SIMATIC CFU 10 Commissioning Manual 08 2019 A5E39252870 AD ...
Page 16: ...What is a Compact Field Unit SIMATIC CFU 16 Commissioning Manual 08 2019 A5E39252870 AD ...
Page 54: ...Installation 6 4 Removing the CFU SIMATIC CFU 54 Commissioning Manual 08 2019 A5E39252870 AD ...
Page 202: ...Appendix A 10 Contact SIMATIC CFU 202 Commissioning Manual 08 2019 A5E39252870 AD ...
Page 216: ...Glossary SIMATIC CFU 216 Commissioning Manual 08 2019 A5E39252870 AD ...
Page 220: ...Index SIMATIC CFU 220 Commissioning Manual 08 2019 A5E39252870 AD ...