Technical Principles
1ª review – UK 06 – 2019
8
A6. Coffee grinder
It’s the M03 Azkoyen model. Technical characteristics:
Turning the handle anticlockwise gives a coarser grind and moving it clockwise gives a finer
grind. The grinder used in Vitro s1 is regulated by time. Grinder programming in function 315
(check details in programming manual)
To get the desired amount of coffee for your Service: first adjust the “grinding point” using
the handle. After set a time for the grinder in the function 315 “grinding time”. It is advised
to scale the ground coffee in each Service. Last, adjust the piston washers in the best position
(check in section A7. Coffee Group+Piston).
Turning the handle that adjusts the grinding point will have an effect on
ground coffee granulometry, but also on ground coffee Flow. Reme
grinder is controlled by time: 3 seconds of coarse coffee will make more
grams than 3 seconds of thin coffee.
It can be said that turning right or left the grinding point handle will vary the amount of coffee
ground for your Service. In that case, the grinding time set in function 315 must be modify as
well to keep getting the desired amount of coffee for each Service.
A7. Espresso Group+Piston/Brewer
Made of resin, it is the element that the machine uses to make the espresso coffee.
The group has moving parts that are activated by a 24 Vdc motor that moves a crank which
moves the coffee from the dosage element to the piston. At the same time it also moves a
lever that activates a micro switch; this indicates the position of the infusion element to the
control board.
Voltage 230 Vac
Nominal power 400 w
Speed 1250 rpm
Diameter of the grinders 63 mm
Grind points 0.026 mm
