EVOCA Opera Touch - Page 36

28 02-2023 6095 00
maNual rEgulatioN of griNDiNg wHEEls
If it is necessary to change the grinding
degree, properly act on the corresponding
grinder knob and more precisely:
- turn counterclockwise to obtain a coarser
grinding degree;
- turn clockwise to obtain a finer grinding
degree;
It is recommended to vary the grinding
degree during the operation of the coee-
grinder motor.
Please Note: after having changed the
-

ground products carefully:
-
er the time required to dispense the

1
3
2
4
5
6
7
Fig. 25
automatic rEgulatioN of griNDiNg
wHEEls
A device intended to regulate the distance
between the grinding wheels and, there-
fore, the grinding degree, automatically can
be mounted on the grinder(s) as a standard
or as an optional.
The device for the automatic regulation of
the grinding wheels can keep the quality of
coee drinks constant all over the time by
balancing any variation due to the product,
the environment and the wear of the grind-
ing wheels.
The automatic regulation of grinding wheels
must be enabled from the menu.
To monitor the automatic regulation pa-
rameters of grinding wheels (grinding and
brewing time) properly, the machine will
assume the following as a reference:
-Brew time: time you wish to dispense the
water quantity set up in the brew dose of
reference.
-Brew dose: water dose of reference to
measure the dispensing time.
The system will make sure that the brew
time required to dispense the water quan-
tity established by the recipe is actually
reached. Otherwise, it will vary the grinding
degree by acting on the bidirectional motor
controlling the distance between the grind-
ing wheels.
In all coee-based selections, whose water
doses are equal to or higher than the brew
dose of reference, the grinding and brewing
time of the coee dose will be measured.
Example:
Cappuccino selection with 55 cdv and
whose brew dose of reference is 50: the
grinding and brewing time will be measured
for the set-up brew dose (50), the remain-
ing water quantity (5) is ignored.
In coee-based selections, whose water
doses are lower than the brew dose of ref-
erence, they are left out of consideration for
the purpose of automatic regulation.
1. Grinder motor
2. Grinder
3. Coffee release electromagnet
4. Grinding regulation knob
5. Grinding regulation knob
6. Automatic grinding regulation motor*
7. Grinder connector
*models with automatic regulation