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Temperature and Sterilization Monitoring in a Rice Mill

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(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

CAS DataLoggers
12628 Chillcothe Rd., Unit J
Chesterland, OH, 44026

Press release date: May 20, 2011

CHESTERLAND, OH - CAS DataLoggers introduced a flexible data monitoring system to a rice miller and food processing company that had recently installed a new production line. This line produced various cooked rice products in reheatable and microwaveable polymer sachets. Consequently the data logging system was utilized to monitor the retort cooking and sterilization temperatures as well as the accumulated Fo value (expressing the heating time required for disinfection) during production of its various pouched rice products. The added capability to download the results was also necessary both for analysis and quality purposes. Internal calculation and real-time data collection were crucial customer needs.

A dataTaker DT80 Intelligent Data Logger was configured for 12 thermocouple probes to monitor the progress of the cooking temperatures inside the sachets and also to monitor the development of steam sterilization as measured by Fo value. The probes were centrally placed inside the pouches, which in turn were placed at appropriate locations throughout the load in a retort.

During the cooking process, the temperature of each probe was recorded every 30 seconds and closely charted in real time on a computer screen. The partial Fo for each probe was calculated in half-minute intervals and a progressive Fo value for each probe was accumulated and displayed onscreen. This real-time data was then returned to a computer running dataTaker software which displayed a trend graph of the temperatures as well as a numeric display of the progressive Fo accumulations. The DT80 also logged the temperature and progressive Fo data into memory. By the cooking time's finish all information was downloaded as a CSV file and retained for analysis and quality purposes to ensure a proper product requirements.

The customer realized several benefits from installing the DT80 data logger. Primarily by optimizing their heating process by strict monitoring of the Fo value they increased product quality. The DT80 also proved to be a cost-effective solution expandable to 100 channels, 200 isolated or 300 single-ended analog inputs, in case the mill expanded operations and required further connections of thermocouples. The system's built-in web and FTP server allowed for remote access to logged data, configuration and diagnostics. Communication features included Modbus slave and master functionality allowing connection to Modbus sensors and devices as well as to SCADA systems. The data logger also featured smart serial sensor channels capable of interfacing to RS232, RS485, RS422 and SDI-12 sensors. The DT80's rugged design and construction ensured its reliable operation even under extreme conditions in the mill. USB memory stick support was included for easy data and program transfer, satisfying the customer's data download needs.

For further information on the dataTaker DT80 Intelligent Data Logger, other loggers in the dataTaker line, or any other CAS DataLoggers product, contact a CAS DataLogger Solution Analyst for application specific recommendations or visit the CAS website at

Contact Information:
CAS DataLoggers, Inc.
12628 Chillicothe Road
Chesterland, Ohio 44026
(440) 729-2570
(800) 956-4437
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