7.2. S.H.S. system ( Simplied Hygienization System )
Description of the system.
Thesystemisequippedwithatank(a ) suitable for distilled water.
Thetankcanhold1.8liters.
Thetankfeeds:
•Thespraysofalltheinstrumentsfoundontheinstrumentandassistant’s
board,
•Tollthecup,
• Water quick-connect coupler (if present).
A by-pass toggle (b)isusedtoshutothesystemifmunicipalwateristo
be delivered to the instruments.
This system allows a disinfecting cycle to be performed for the instru-
ments’ spray ducts using hydrogen peroxide (see paragraph 7.4.).
WARNING!
Perform a disinfecting cycle at the end of each work day.
Filling the tank.
Whenthewaterlevelinthetankislow(about500cc),llitasdirectedbelow:
• Turntheswitch(c ) to “CLOSEAIRPRESSURE”.
•Turnthetankcounter-clockwiseandremovethetank(a ).
NOTE: while this operation is being performed, the pressu-
rised air in the tank is automatically released outside.
• Pour distilled water into the tank until the maximum level is reached.
WARNING!
Use only distilled water. For a higher guarantee of hygiene you can add
600 parts per million of hydrogen peroxide using 20 ml of Peroxy Ag+
per litre of distilled water, or oxygenated water (20 ml of 3% oxygenated
water per litre of distilled water).
• Put the tank back in place turning it clockwise.
•Turnthetoggle(c)toposition"OPENAIRPRESSURE”.
WARNING!
• Assure the tank is rmly secured in place before switching the toggle
(c) to position "OPEN AIR PRESSURE”.
• In case of long absences from the studio (holidays), completely
empty out the tank ( a ) before leaving.
BY-PASS function
Thesystemcanbeshutoif municipal water istobedeliveredtothe
instruments.
Thisfunctionisobtainedbyswitchingthelever(b ) to position "LINE”.
Turnthetoggle(b )toposition"TANK”togobacktoworkingwithdistilled
water.
Cleaning the tank.
Itisadvisabletoperiodically(atleastonceamonth)cold-disinfectonlythetankusingPeroxyAg+or3%oxygenatedwater(10volumes)notdiluted
and operating as follows:
• takethetankoutofthedentalunitandemptyit,
• llthetankwithdisinfectantliquiduptotherim,
• leavethedisinfectantliquidtodwellinthetankforatleast10minutes,
• completelyemptyoutthetank,
• rinsethetankwithdistilledwater,
• llthetankwithdistilledwaterand,ifnecessary,addhydrogenperoxideoroxygenatedwaterasdescribedabove,
• put the tank back in place in the dental unit.