Service manual

Mixing system
8.6
The mixing system, consisting of the ingredient
container, the mixing units, and a number of
motors driving the ingredient containers and the
mixing units, ensures a correct dosing of the
ingredients and the mixing of the ingredients with
the hot water.
The moment the water reaches the time-indication
level electrode. the operating system will start
operating the motors of the ingredient containers
and the mixing units. Depending on the beverage
selected, one or more of the motors will be started
up. in consecutive order. The driving of the motor
for the ingredient container occurs by way of the
so-called 'Pulse Width Modulation'. This means
that the speed with which the motor is turning is
regulated in such a way that the powder flows into
the mixer at the exact same moment as the water.
This ensures the flowing of powder into the mixer
during the flowing of water, ensuring the emittance
of a smoothly mixed beverage.
8.6.1 Ingredient container
Inside the ingredient container there is a spiral to
transport the powder to the outlet. An antklogging
mechanism ensures that the powder inside the
ingredient container does not aet lumpy.
At the moment the water reaches the time
indicator level electrode, the operating system will
operate the anti-clogging mechanism.
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Mixing unit
8.6.2
The mixing unit consists of a mixing basin, the
mixing chamber, the mixer, the base plate, a hose,
the outlet piece, and a small exhaust fan, which
ensure the mixing of the hot water with the
Ingredient.
The moment the water reaches the time-indication
level electrode, the operating system will start
operating the motors of the Ingredient containers
and the mixing unit. At the same time, the hot
water is being siphoned. The powder from the
ingredient container reaches the mixing basin at
the same time as the hot water. This mix will flow
into the mixing chamber. Here. the mixture Is
mixed thoroughly and flows from the outlet piece.
Depending on the selected beverage, the operating
system will operate either of the two mixers.
(During the pouring of a halflwhole jug, the mixer
will tum during its first cycle or the whOOt process,
depending on the selected beverage. This prevents
a large head of foam from forming on top of the
beverage.)
The small exhaust fan removes the water vapour
that collects over each mixing chamber. This
prevents the ingredients in their containers from
getting damp. The water extraction is
accomplished by two fans.
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Bravilor Ud. version 1.0