Disinfection Control - Meiko M-iClean H Series Operating Instructions Manual

4.7.5

Disinfection control

Caution
Glass corrosion and loss of decorations due to high water temperatures and
long wash cycle times
•
Make sure that the dishes and glassware used are suitable for the high stress
placed on them.
MEIKO offers two types of machine with thermal disinfection for institutions with ad-
ditional hygiene requirements. Both versions have greater heating performance in
the wash tank than standard machines.
A control
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The term A
moist heat disinfection methods. By using a moist heat disinfection method, it is ex-
pected that a specific temperature over a period of time has the effect of eliminating
a predictable number of microorganisms with a particular resistance.
The standard setting for a dishwasher with A
•
The tank temperature during washing is up to 74° C.
•
For tank temperatures of 65° C or higher, each tank temperature is assigned a
factor.
•
Using the measured tank temperature, a value is determined and added every
second until the hygiene value A
•
The rinsing process runs until the end of the programme cycle time, but at least
until the temperature value is reached. After this comes a pause for draining
and the final rinse.
The display shows the current A
Thermolabel control
In a way which is similar to A
disinfection process which uses moist heat. The dishwasher heats the rinse water to
a higher temperature in order to eliminate germs. The efficacy of the disinfection can
be tested using a measurement strip, the Thermolabel. The measurement strip
changes colour after 4 seconds at 71 °C for a wash item.
•
During washing, the tank temperature is heated up to 71° C and maintained at
that temperature.
•
The rinsing process runs until the end of the programme cycle time, but at least
until the temperature value is reached. After this comes a pause for draining
and the final rinse.
•
Washing at high temperatures and long spells in the wash tank can lead to
glass corrosion and premature wear to decoration.
Thermal disinfection - control
Thermal disinfection works according to the same principle as Thermolabel control,
but other requirements apply:
• The disinfection temperature is ≥ 80° C, which must be maintained on the
washware for ≥ 30 s.
•
During washing, the tank temperature is heated up to 76° C, and the final rinse
temperature is 88 °C.
refers to a way of measuring how microorganisms are eliminated by
0
value.
0
control, machines with Thermolabel control have a
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19 / 62
– control is the hygiene value A
0
30 is reached.
0
30:
0
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