Sita 405, Руководство пользователя, Страница: 3 / 16

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2. General Principles
Information about UV irradiation
The UV sterilizers of the SINGLE LAMP series 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 warranty of security: the output of ultra-violet
irradiation.
The UV light given out by special mercury fumes lamps (UV-C rays

= 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).
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 direction
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 vapors 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 centers for the recovery of dangerous materials, or to
contact directly our technical department.
INFORMATION TO USERS pursuant to art. 14 of the 2012/19 / EU DIRECTIVE OF
THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 4 July 2012 on waste
electrical and electronic equipment (WEEE)
The crossed bin symbol on the appliance or on its packaging indicates that the product at
the end of its useful life must be collected separately and not disposed of together with other mixed urban
waste.
Please contact your municipality, or local authority, for all information regarding the separate collection
systems available in the area. The retailer is obliged to collect the old equipment free of charge when
buying new equipment of an equivalent type, for the purpose of starting the correct recycling / disposal.