Acorto 2000s - Page 94

2o3o-o1oA
Setction 10 Brew Grouo
Quick
Tip
Viewing
Left
Piston Movement In Test Routines
1. Enter
the
programming
menu and
access
the Main
Menu
Categrory:
TEST RoUTtNES
2.
Scroll to
the Sub
Menu Category: LEFT
DRIVE
3.
Under normal
operating
conditions,
piston
location
should
display
apprx 362-363
4.
Use
the Increase Value/Decrease Value
Arrows
to Move Piston
5. As
piston
moves,
the
piston
location
number
will change
6. As
ther
piston
magnet move
across
the
Hall
Effect
Sensor,
a
,,L"
will
appear on the display and the sensor
LED will
illuminate
Group
Initialization
Each
time
the Model
2000 is
turned "ON," the brew
group
runs
through
22
different
steps
to
perform
a self-calibration.
The CPIJ monitors
the
C,cffee
Piston
movement
from
thc basc
of the
brcw
chamber to the basc
of the
Brew,
Pisr.olr.
As
the
CPLJ monitors
the
piston
movement
based on the
rotational
hall
effect
sensors
arrd locates
tlre Fixed
Hall
frli-ect
Sensors. the CPU's
piston
positions
are
"reset."
Upon
completion
of tlre
group
irritialization,
the
pistons
move
to their
'"Home"
position.
During
operation,
the
pistons
move
past
the Irixed
Sensors
and the
CPLJ's
piston
positions
are
"reset."
Measuring
Coffee
Powder
Dose
The
CPIJ
monitors
the Coffee
Powder
Dose
(amount
of coflee ground
into
the brew
chamber
during
an exlraction)
using information
obtained
from
the
Hall
Eflect
Sensors.
Once
the
beans
are
ground
and
dispensed into
the Brew
Charnber,
the
LJpper
Piston
lowers
into
the
Brew
Chamber
to seal it. The
Lower
Piston
m()ves
up
in
the
chamber
to pack
the
ground
coffee
against
the
Upper Piston.
(The
lower piston
rnoves
until
it
is
stopped
by'the
presience
of the
coffee in
the chamber.)
As
tlre pistons
move.
the CPtl
monitors
the
number
of
piston
motor
rgtations
necessar)'
to pack
the, ground
colTee.
The
CPU is
programmer1
to relate "X"
number
of rotations
with gror,rnd
coffbe
volume
(grams
of
ground
coffee
in
the chamber).
With
each new
extraction,
the
CPU
automatically
adjusts
the next
coffbe
powder
dose
(by
increasing
or
decreasing
the
grind
time)
based
on
the
amount
of:
cofl-ee
detected
during
the previous
extraction.
The
Grind
Adjust
Arrows
provide
a visual
display
of the
CPU
monitoring
the
Coffee
Powder
Dose.
The
Direction
of
the Arrow
indicates
in
if
the
Coffee
powder
Dose
will
be
increased'l',
decreased
J
.
or remain
the same
-
durin;l
the next
extraction.
Acorto
2000s/i
Technical
Support
'tn r