It is no surprise that high or low temperatures play a central role in food processing applications like cooking, baking and freezing. Maintaining the target temperatures in these processes is often directly linked with the quality of the food or beverage produced. Also, in packaging processes like forming and sealing, temperature plays a vital role in defining both the quality of the product and the productivity of the process.
The goal of any temperature controller design is to keep the temperature of the target device at the set-point defined by the user as accurately as possible and using the minimum amount of energy. To judge the performance of a temperature controller, the following commonly occurring events are often used:
Changing the set value
The time required to reach a temperature after setting a new target value defines when a machine is ready to operate and thus directly influences the productivity. On the other hand a fast rising temperature profile is often connected with a costly temperature overshoot that unnecessarily wastes energy.
Compensating for disturbances
The disturbances in a process can be either process related or unwanted external disturbances. Process related disturbances can be eg, the temperature drop after a sealing or forming process and unwanted disturbances could be a power drop, an unplanned shut down or even something as simple as an opened door. The earlier a disturbance is compensated for the sooner a machine is ready for production again. In addition to time, the required energy for the compensation defines the performance of a temperature controller.
Temperature profiles
For many processes, temperature profiles with defined temperature ramps or even complex temperature profiles may be required. Again the difference between target and actual temperature as well as the energy define the performance of the temperature controller.
At Omron we consider accuracy, speed and usability to be the core aspects of a temperature controller design and our customers around the world value our leading performance in this matter. Our wide portfolio of temperature controllers extends from the simple to the very specific; special temperature controllers are required for special applications.
Temperature measurement solution for foundry
Temperature Measurement
AMETEK Land, a world-leading manufacturer of infrared pyrometers, scanners and thermal imagers, is helping an Indian foundry to support metal quality and reduce ongoing costs.
Read more...How wet steam undermines boiler efficiency Endress+Hauser South Africa
Temperature Measurement
Endress+Hauser understands the daily challenges and demands placed on energy and utility managers across the spectrum of steam generation, distribution and consumption activities. Its global team is committed to working with its partners to overcome these complexities, and particularly those that aim for a safe, economic and sustainable sitsce of steam energy production and delivery.
Read more...Dramatically reducing greenhouse emissions
Temperature Measurement
Online teaser: There is considerable potential for reducing CO2 emissions in the mill process by optimising the heat source for drying. The most promising approach to achieving a carbon neutral process in a hot gas generator is the combustion of green hydrogen.
Read more...Future-proofing SMEs with cobots Omron Electronics
Motion Control & Drives
Many countries around the world are likely to experience skill shortages over the coming decade, especially technical specialists. At the same time, product lifecycles are becoming shorter. Collaborative robots are easy to set up, and offer a quick and cost-effective solution.
Read more...Robot-assisted workflows in the food industry Omron Electronics
Motion Control & Drives
Producers are increasingly having to juggle between longer term range proliferation centred on consumer demands, and range reduction caused by the rapidly changing buying habits of retailers and consumers. This has resulted in them having to be even more agile with existing assets.
Read more...Infrared camera for condition monitoring and early fire detection Instrotech
Temperature Measurement
The Optris PI 640i thermal imager is the smallest measuring VGA infrared camera, with a body-sized volume of 45 x 56 x 90 mm, and weighing only 269 to 340 g, depending on the lens. It counts among the most compact thermal imaging cameras on the market.
Read more...Paint curing applications in the automotive industry R&C Instrumentation
Temperature Measurement
For successful paint cure, irrespective of the paint chemistry being used, there is a critical need to measure and control the temperature of the car body as it travels through the oven. Today, paint ovens are controlled in a sophisticated fashion via thermocouples located in each zone to give constant feedback on the ambient temperature.
printer friendly version