Gaggia Babila - Auto-learning Dose System (SAS)

GAGGIA BABILA 04 OPERATING LOGIC
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4.10 Auto-learning dose (SAS)
The aim of this function is to automatically regulate the average dose of ground coee (SELF-
LEARNING); this takes place with an algorithm based on the following values and setting by the
user:
1. Number of coee grinder pulses during the grinding cycle.
2. Max. average value of the power consumed by the gear motor during the coee brewing cycle.
3. Aroma selected by the user.
The algorithm compares the maximum average value of the power consumed by the gear motor
with the value listed in the table for the selected aroma, in order to calculate the new grinding
pulse value for the next coee produced.
If the power consumption value is less than the minimum current value, the grinding pulses will
be increased by 2.
If the power consumption value is greater than the maximum current value, the grinding pulses
will be decreased by 4.
If the power consumption value falls within the “over-torque” interval, the product will be dis-
pensed and the grinding pulses will be decreased by 10.
If the power consumption value falls within the “abort cycle” interval, the dreg will be expelled
and the grinding pulses will be decreased by 10.
If the “pre-ground” avour is selected by the user, no modication will be made.
This guarantees that, regardless of the coee type used, the grinding level setting
and the wear on the grinders, the ground coee dose always remains constant.
Important:
For perfect operation, machine adjustment should take place in the area of the elds
highlighted in green (A, B, C). When the type or brand of coee is changed, there may be
variations in the size of the beans and their stickiness or roasting level. This leads to variations
in power consumption (mA), with resulting excessive or insucient doses (until the necessary
adjustments have been made to compensate for this change).
Caution: In the case of excessive dosage, powder may be expelled into the dreg
drawer. This is not a fault, but can occur during preliminary operation or after a
service.
DOSE ADJUSTMENT (NUMBER OF GRINDER IMPULSES)
TO APPLY TO MED AROMA
3 levels 5 levels +2 0 -4 -10
-10 and
CYCLE
ABORTED
Aroma
of the
grinded
product
Light Very Light
MAX_CURRENT_mA
<150mA
<=150mA
MAX_CURRENT_mA
<=250mA
MAX_CURRENT_mA
>250mA
MAX_CURRENT_mA
>800mA
MAX_CURRENT_mA
>1000mA
Med
Light
MAX_CURRENT_mA
<250mA
<=250mA
MAX_CURRENT_mA
<=350mA
MAX_CURRENT_mA
>350mA
MAX_CURRENT_mA
>800mA
MAX_CURRENT_mA
>1000mA
Med
Strong
Strong
MAX_CURRENT_mA
<350mA
<=350mA
MAX_CURRENT_mA
<=500mA
MAX_CURRENT_mA
>500mA
MAX_CURRENT_mA
>800mA
MAX_CURRENT_mA
>1000mA
Very Strong
A
B
C