A0 Thermal Disinfection Parameter - Smeg WD2145 User Manual

5.7

A0 THERMAL DISINFECTION PARAMETER

The A parameter (introduced by the EN 15883 standard
0
disinfection carried out - shown by Td in the interface LEDs.
When calculating the parameter, only the time intervals during which the temperature is above 65°C are considered.
For thermal disinfection programs, the calculation is simplified by only including the "extension" phase, when the
temperature is kept constant at close to the target value set.
Programs that include thermal disinfection have therefore been designed to offer the following A
The formula for calculating A

= Time in seconds for which the disinfection temperature must be maintained.
= Disinfection temperature in °C.
T
If the temperature is 80°C, A
3
EUROPEAN STANDARD EN 15883 "Washer-Disinfectors" , with particular reference to section 3 Terms and Definitions and annex B, A
part 1 of the standard, 15883-1.
User Manual
Temperature [°C] and time [min]
90°C - 1'
90°C - 5'
93°C - 5'
93°C - 10'
is given below.
0
A
0
is equal to the temperature maintenance time.
0
WD2145-WD1160-WD4060-WD4190
3
) allows a numerical value to be assigned to the thermal
A
600
3000
6000
12000
 

T 80
 

 
 
10
10
values:
0
0
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concept. of
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