Philips 3000 V2 - Coffee Grinder Philips 3000 V2; Low Bean Level Detection, Dose Quantity Adjustment; Coffee Grinder Blocked

PHILIPS 3000 V2 03 OPERATING LOGIC
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 3.4. CoeegrinderPhilips3000V2
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3.5. Lowbeanleveldetection,dosequantityadjustment,coeegrinder
blocked
t1
V
t2
t3
t4
t
Without beans n=100%
With beans n=100%
Without beans n=50%
With beans n=50%
The coee grinder is driven by a direct current motor (1) using a worm screw helicoidal wheel
transmission (2).
The worm screw (2) drives a plastic gear wheel (3), which turns the lower grinder (4) and the
increment pin (5)
There are two magnets (6) in the gear wheel; at every rotation these induce two pulses to a Hall
sensor, which in turn transmits them to the electronic system.
Nocoee
A low coee bean level is detected by the Hall sensor,
after variations in the pulse frequency (with or without
coee).
If there are no coee beans (operation while empty),
the number of rotations – and therefore the number of
pulses – will be greater.
t1=nocoeeindication
If, however, there are coee beans, the number of
rotations will be lower due to the force created by the
grinding.
t2 = no indication
t3 and t4 = this measurement is performed at the end
of each grinding process
Dosequantityadjustment
The dose quantity is adjusted in accordance with the
pulses detected (number of rotations proportional to the
selected avor – mild, medium or strong).
Coeegrinderblockage
If the coee grinder becomes blocked for any reason,
pulses will no longer be transmitted to the electronic
system and the grinder will come to a stop.