ABB C360 Product Application Manual
Retort Control in the Food Industry
using the C360
Product Application Guide
AG/RCP–007_2
Fig. 1 Horizontal and Vertical Retorts
1.623
108
.6
11
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C360
Multi-Recipe
Profile Controller
11
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Steam
Steam
C360
Multi-Recipe
Profile Controller
C360
Multi-Recipe
Profile Controller
C360
Multi-Recipe
Profile Controller
Current to
Pressure
Converter
Current to
Pressure
Converter
Current to
Pressure
Converter
Retransmission
Output to
Recorder
Retransmission
Output to
Recorder
Retort Control in the Food Industry using the C360
AG/RCP-007_2
2
Why Use the C360?
The C360 ensures high quality retorting and increases productivity. Features making it
ideal for retorts include:
▲
Automatic temperature control for increased production and operational efficiency.
▲
Up to twenty set point profiles, including guaranteed ramp and soak with individual
hysteresis for precise temperature profiles and improved product quality.
▲
Dedicated front panel for Ramp/Soak profile applications.
▲
Retransmission facility for recording purposes as standard.
▲
Fully programmable using PC Configuration software.
▲
Status indicators, a deviation bargraph and three displays showing process
variable, set point and output/segment/program all improve operator efficiency.
▲
Fast startup with self-seeking set point.
▲
Direct-connected RTD and/or thermocouple inputs reduce installation costs.
▲
Easy-clean NEMA4X/IP66 front face.
▲
Front panel profile control keys can be locked out for additional process
security.
Features and Benefits
Comprehensive Ramp/Soak Display
▲
The large, easy-to-read front panel displays of the C360 allow the operator to see
displayed information from a distance. This information includes process variable
in the upper display (red LEDs) and control set point (green LED’s) in the center
display. The lower, multifunctional display provides the following information:
program number and segment running, time remaining in the current segment
and output in %.
▲
The controller also includes status indicators; secret-til-lit LEDs showing the
type of segment being run (ramp-up, hold, ramp-down). Also featured is a
multi-color deviation bar graph which provides the operator with an immediate
representation of the deviation between process value and set point.
PC Configurable
▲
The PC Configuration Editor software (C100/0700) allows very quick and easy
setup of the
C360. Complete configurations can be stored on floppy disk allowing
an unlimited number of different cook cycles to be stored and downloaded when
needed.
▲
Reports can be printed of the controller's configuration for historical records.
Direct Connecting I/O Reduces Installation Costs
▲
With the C360, RTD or thermocouple inputs are connected directly to the
instrument. Linearization and ranging are automatic. This not only simplifies
installation, it also reduces installation costs by eliminating the need for special
termination panels or conversion equipment.
Retort Control in the Food Industry using the C360
AG/RCP-007_2
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Fig. 2 Loading a Vertical Retort
The Application
Much of the food consumed each year is preserved by packaging it in hermeticallysealed containers in a process known as canning.
One of the most important steps in the canning of foods is 'thermal processing', more
commonly referred to as the retorting operation. In this operation, strict specifications,
concerning both time and temperature, must be adhered to and repeated, batch after
batch, to obtain sterile product and uniform quality.
Processing is done in batches using a cylindrical, pressurized vessel called a retort.
Retorts are classified as either vertical or horizontal, depending on the position of
its long axis. A vertical retort is loaded from the top whereas a horizontal retort is
loaded from one end.
In either retort type, the canned product is cooked by one of two processes:
▲
Steam cooking for product stored in metal containers
▲
Water cooking for product stored in glass jars
Steam cooking is done in a steam atmosphere devoid of air and water cooking is
done in steam heated water.
A
1
A
2
L
R
S
T
M
108
.6
108
.6
C360
Multi-Recipe
Profile Controller
Current to
Pressure
Converter
Retransmission
Output to
Recorder
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