Simple assembly
An simplified pressurized enclosure system consists of two
components and the enclosure.
- control unit FS840 for process control and monitoring
- Sinter metal throttle SD840 to control air input fed by
pressured air network
See manual F840 for requirements of pressurized enclosure and
integrated ignition capable apparatus.
Selectable Automatic pre- purging
If the operator is not sure, that the atmosphere inside of the
enclosure and the appropriate pipe infrastructure is below 25% of the
lower explosive limit (LEL) (EN 60079-14 chapter 13.4), the enclosure
must be purged to achieve a safe atmosphere inside of the enclosure.
The F840 system can purge the enclosure automatically using
the solenoid valve SVD.L. In this case the SVD.L replaces the sinter
metal throttle. |