NSK iClave Plus, Руководство по эксплуатации

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7. TROUBLESHOOTING
7.1 INITIAL AUTO-TEST
Each time the equipment is switched on, starts an automatic test (duration approx. 15 s) checking sequen-
tially any main component.
Three beeps signal the end of the auto-test and, if positively passed, the message Card Good is displayed .
Whatever fault detected, it will be shown on the display and stored with the alarm code of the Table C (see
chapter ALARM).
To skip the auto-test, turn on the unit and push a key immediately after.
7.1.1 Water quality check
To prevent the accidental use of poor quality demineralized water, the sterilizer is equipped with a device that
monitors the water conductivity; this check starts at the switching-on (initial auto-test), provided that the unit is
at environment temperature and with the main tank full.
At the end of the auto-test, the display will show the message « H2O good » or « H2O hard » if the meas-
ured conductivity value is respectively lower or higher than 15 µS.
ATTENTION
The negative result of the water quality check does not stop the operation of the sterilizer; anyway, it
is strictly recommended to replace the water with a type of better quality.
The following table shows the minimum values suggested for the feeding water.
Polluting agents Feeding water Condensate
evaporation residue < 10mg/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
heavy metal residues, included
iron, cadmium and lead
< 0,1 mg/l < 0,1 mg/l
chlorine < 2 mg/l < 0,1 mg/l
phosphate < 0,5 mg/l < 0,1 mg/l
Conductivity (at 20°C) < 15 uS < 3 uS
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