3
2.
General Principles
The UV 400 SERIES sterilizers have been planned specially for destroying harmful bacteria and
viruses present in your water.
Their working is based on a physical principle which is a warrant of security: the output of ultra-
violet irradiation.
The UV light given out by special mercury fumes lamps (UV-C rays
λ
= 254nm) is highly
germicidal because it interacts with DNA and RNA, at a molecular level.
The deep bio-structural disorder caused by such irradiation interferes with the development and
the ability of reproduction of every kind of micro-organism, making it harmless.
Generally it is better to mount a pre-filter before the UV sterilizer, in this way the impurities of
every nature and consistence are kept.
This system comes to be necessary if we want to have a high degree of sterilization, infact the
non-filtration and removal of suspended particles in the water has, as a consequence, a decrease
of the sterilizer's efficiency.
If the water to be treated contains sulphydric acid or more than 0.3 p.p.m. of iron or filtrable
solids, once passed through the sterilizer, it leaves a residual sediment on the quartz sleeve,
which, therefore, must be periodically cleaned (the frequency depends on the quantity and quality
of water treated).
The sterilization equipment is constituted by different electronical and electromechanical
components assembled in such a way to realize effectively the sterilization process, giving a
bacteriologically pure water.
GENERAL DIRECTIONS
According to the European rules EN 60204-1 (safety of the set-up off the electrical equipment-
general rules) the low tension electrical instruments (rule 2006/95/CE) must be connected to a
current-tap provided with grounding.
SAFETY DIRECTIONS
The light of ultra-violet lamps can cause serious burns to unprotected skin and eyes, therefore it is
recommended not to connect it to the current tap without having before ensured the UV lamp in
its housing and inserted the PVC cover.
INDICATIONS FOR THE DISPOSAL
We remind that, according to what is fixed by D.L.25 july 2005,
№
151 “Accomplishment of
directives 2002/CE, 2002/96/CE and 2003/108/CE, concerning the reduction of the use of
dangerous substances in electric and electronic equipments, and the disposal of waste” both
mercury vapours lamps and electrical panels, when no more used, must be considered as special
waste, and in the same way disposed of.
To do that, it is possible to address to specialized centres for the recovery of dangerous materials,
or to contact directly our technical department.
ELECTRICITY
The lightning flash and arrowhead symbol is to alert the user to the presence of un-insulated
"DANGEROUS VOLTAGE” within the enclosure.
The equipment may only be opened if the mains supply is isolated. The mains supply must not be
restored as long as the equipment is open. This applies to both the electrical control panel and the
reactor vessel.
