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The
universal solution to the automatization of the soft-drink production
process is found in the BAS02 Measurement System which not only analyzes
the product on the line, but also performs automatic control, recording,
remote control, data collection and processing functions.
The BAS02 analysis system includes:
- IB05
analysis unit (Brix / Diet /CO2 , optionally alcohol and oxygen)
- Brix
controller (field)
- CO2 controller (field)
- Recorder
or printer for data collection (field)
- Remote
display
- Remote
control and MULTILAB IV
- Data
acquisition
IB05
Analysis Unit
The IB05 Analysis Unit is the basis of the BAS02
system. It is
the result of Maselli's search for new
technologies to meet the ever-changing
needs of the soft drink industry.
In fact, as a result of faster and more sophisticated lines,
the need
for
consistent
product quality
and
the rising cost of raw material
prices, a close control
of the produced soft drinks' basic analytic
parameters (sugar or sweetner levels,
CO2 volume) has become indispensable.
To meet this need, MASELLI MISURE has a long history of offering solutions
aimed at satsifying
two basic
requirements:
- constant quality
- containment of production
costs
The IB05 analysis unit is the system's
first element and meets all basic
requirements for
soft drink
production control by combining
the following functions:
analysis (Brix / Diet /CO2 , optionally
alcohol and oxygen)
alarms
data transmission
The IB05 analysis unit includes:
A)
UR21 Refractometric Analyzer
B) UC04 Carbometric Analyzer
C) US01 Ultra sonic device (Alcohol
analizer)
D) UX01 Oxygen Analyzer
E) sealed, stainless steel control
panel
F) circulating pump
G) hydraulic circuit (piping)
All
components are interconnected and mounted on a self-supporting
stainless steel frame.
The hydraulic
circuit has quick-coupling
tri-clamps. The unit is
designed to detect sugar or
sweetener concentration
levels and CO2 content
of the product being analyzed,
alert the operator and
transmit the relevant
data to the
remote control or data
acquisition systems.
The
Functions
Brix Analysis
The UR21 Refractometer microprocessor
version detects the Brix
degree. A switch on the receiver
makes
it possible to select
the Brix field between 5-15 for sugared and 0-2.000
for dietetic soft drinks.
The CCD optical sensor guarantees
high-precision and repeatability
without drift over time.
The optical system is
insensitive to the measuring
lamp's intensity
fluctuations in to the
photocell's aging, or
prism's fouling.
The
refractometer is also
not affected by CO2 or
air bubbles that can
disturb density readers.
CO2 Analysis
The CO2 level is determined by the
UC04 Carbometric Analyzer
on the basis of the correlation between
this parameter
and Henry's Law saturation
pressure.
In the measuring chamber
where the product being
analyzed
is sampled,
a mechanical shock
causes
pressure to rise
until the saturation
pressure is reached.
The instrument
detects the saturation
pressure and temperature
in the measuring chamber
and then,
applying Henry's Law,
calculates
the volume of CO2 present
in the soft drink. This
measurement cycle
is repeated two-to-four
times
a minute.
Alcohol Analysis (optional)
The alcohol content is measured combining
the data obtained by
the Refractometer (UR21) and
an Ultra
Sonic device
(US01). In order to
determine the sonic velocity
a transmitted pulse is sent through the liquid
and the time is measured
till this pulse is recognized
by the receiver. This
time measurement precisely gives the
sonic velocity, which
is intrinsically related to the
concentration.
Oxygen Analysis (optional)
The dissolved O2 content
is measured through the UX01 Oxygen
Analyzer. It's based on a standard
amperometric method,
and it combines an Electrode (Clark cell) and a receiver.
Alarms
To facilitate alarm management
with different thresholds
for each product being
analyzed, up
to 40 recipes may be
programmed in which the
operator enters
the limit
values of every parameter
for each soft drink. The
individual
recipe
is called
up at beginning
the of
each work session.
When the IB05 analyzer detects
values
that exceed
those entered in the
recipy being utilized,
alarm messages are
triggered,
alerting the operator
and allowing him/her to
intervene in the
process. An output
contact allows to activate
a remote acoustic or
optical alarm.
Data transmission
The IB05 analyzer is
equipped with analog
and serial outputs.
Analog
outputs 4-20 mA are
used for connection
to a paper recorder
in the laboratory or field,
while
the serial outputs
are
used for data transmission
between
the analyzer and remote
repeater,
for communication with
the Maselli Brix and
CO2 controller,
and
with the MULTILAB
IV remote control
and data acquisition
software installed
on the PC located
in the Quality
Control Lab.
The serial outputs
may also be used for
continuous
print-out
of a variety
of data or other information
on a local
printer.
Brix Controller
The Brix control is
customized for the
type of soft
drink production
plant in which it is
installed. Normally, two different
systems may be
used:
a) Dosing using dosing
pumps
b) Orifice regulation
In the first case,
the controller drives
a motor
and regulates
the position of the dosing
pump
head; in
the second it controls
the position of the
flow regulation
valves.
The Brix controller can receive the parameters
of the soft drink
to be produced
from either the IB05
analysis unit or the
remote MULTILAB control
unit located in the
laboratory, always
with the 40 programmable
recipes
system.
CO2 Controller
The CO2 controller can be made in
two different systems:
a) injection CO2 controller
b) saturation CO2 controller
In the first case,
a flow transmitter
measures
CO2 flow
rate in the feed pipe
and the controller
keeps
this constant
using an electro-pneumatic
translator that drives
a pressure
reducer. In
the second, a pressure
sensor located
on the
product
tank detects
CO2 pressure
and the controller
keeps this constant
driving
an
electro-pneumatic translator
that controls the pressure
reducer. In both systems,
the controller flow
rate or
pressure setpoint value
is "cascade" modified
by the IB05 that reads
the CO2 value
of the finished product.
Recorder or Printer
In order to collect
the data read by the
analysis
units,
either a
continuous-form analog
recorder or serial
printer can be installed
in
the field. The printer,
driven by dedicated
software, print out
the results in graphic
and numeric form.
Remote Display
To complete the BAS02 System, a display
that shows the Brix and CO2 degree
values as well
as the alarm
status
is available. The remote
display is useful when the measuring
devices are located in positions
not visible
to the operator.
Remote Control and MULTILAB IV data
acquisition software
The production line can be run from
the laboratory using the MULTILAB
IV remote control unit which,
thanks to a two-way serial connection with
the IB05 unit, functions
as a remote
terminal in the lab, allowing
to monitor and modify all functions.
The system can communicate
with 8 different
units located on various lines.
The MULTILAB IV data acquisition section
displays production data in
graphic form, gives
current values and alarm status
for each line and creates
job reports that can be printed
out and consulted
at a
later date using the standard programs
in the MULTILAB IV or specific customer
software.
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