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Using the sterilizer
The water in the used water tank should be considered as biologically contaminated, therefore appropriate
precautions should be taken if the tank is emptied.
Used water must be disposed of in accordance with local or national regulations.
The demineralized water tank can also be drained in the same way, if necessary, connecting the tube to the
attachment quickly and positioning the selector on clean water.
5.10.3 Checking the water quality
To prevent accidental use of poor quality water, the device is equipped with an automatic water quality control
system that measures its conductivity. The control system is part of the initial diagnostic tests and comes into
operation automatically when the machine is switched on, provided that the device is at room temperature and
with a full demineralized water tank.
At the end of the diagnostics, if the measured conductivity value is higher than 15 µS/cm, the notice I23 appears
(see par. 6.2 “Information list”).
The negative result of this check doesn’t block the operation of the sterilizer; however, it is recommended
to replace the demineralized water found to be of non-ideal quality, with a better quality one.
The following table shows the recommended minimum parameters for the water to be used
Pollutants Supply water Condensed
evaporation residue ≤ 10 mg/l ≤ 1,0 mg/l
silicon oxide ≤ 1 mg/l ≤ 0,1 mg/l
iron ≤ 0,2 mg/l ≤ 0,1 mg/l
cadmium ≤ 0,005 mg/l ≤ 0,005 mg/l
lead ≤ 0,05 mg/l ≤ 0,05 mg/l
residues of heavy metals, excluding iron,
cadmium and lead
≤ 0,1 mg/l ≤ 0,1 mg/l
chlorine ≤ 2 mg/l ≤ 0,1 mg/l
phosphates ≤ 0,5 mg/l ≤ 0,1 mg/l
Conductivity (at 20°C) ≤ 15 uS/cm ≤ 3 uS/cm
pH from 5 to 7,5 from 5 to 7
appearance
Colourless, clean without
sediment
Colourless, clean without
sediment
hardness ≤ 0,02 mmol/l ≤ 0,02 mmol/l
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