KROHNE VARIFLUX IFS 6000 F-EEx EN - Manual (Page 16)

16 ALTOFLUX IFS 4000F-EEx, PROFIFLUX IFS 5000F-EEx, VARIFLUX IFS 6000F-EEx
3 Maintenance
The IFS x000 F-EEx primary head is maintenance free with regard to the flowmetering properties.
For IFS 4000 F-EEx it is recommended to check the flameproof enclosure of meter sizes DN25 up
to and including DN150, within the scope of the periodical inspections, which are required for
electrical apparatus that are installed and used in hazardous classified locations.
Regarding the IFS 5000 F-EEx no special inspections are required for this electrical apparatus,
even within the scope of the periodical inspections.
For IFS 6000 F-EEx it is recommended to check the flameproof enclosure of meter sizes DN25 up
to and including DN80, within the scope of the periodical inspections, which are required for
electrical apparatus that are installed and used in hazardous classified locations.