Process monitoring is becoming a more absolute requirement due to increased demand from quality control and management information systems. Measuring the temperature of moving products with conventional temperature devices like thermocouples and PT100s has never been easy.
Today’s modern conveyor systems transfer hot and unstable product from one area to another far more easily than in the past. The problems of drag, friction and static generation rule out conventional contact measurement in most cases. Also response time is critical on fast moving conveying systems. Slow response can allow large volumes of out of spec or dangerous product to flow past the detector before an alarm can be generated.
The solution: non-contact infrared thermometers
Infrared technology is not new and it has been utilised successfully in industrial and research applications for decades. Now, new innovations have reduced cost, increased reliability and resulted in smaller non-contact infrared units suitable for demanding applications.
The advantages of non-contact temperature measurement are:
* Fast response to temperature changes in the millisecond range.
* Measurement of small areas of hot product can be detected on open conveyors moving at speed.
* Corrosive products can be measured.
* Measurement is possible from -50 to 3000°C with correct product choice.
* Signal processing.
* No contact = no product contamination.
With many different models of infrared units available in the Raytek and Ircon ranges it is easy to select the correct unit for an application. The application will determine the temperature range; the distance from the sensor to the product will determine the optical resolution, and the product velocity will determine response of the instrument required. Factors like the presence of smoke, dust and adverse weather conditions, will determine IP rating and whether air purge collars for the lenses are required.
In South Africa Raytek TX and MID systems have been used on large coal and coke conveyors, on smaller packaging plants the Raytek CM range fits the requirement for compact units with processing power.
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...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.
Read more...Universal temperature transmitter with drift detection WIKA Instruments
Temperature Measurement
The new model T38 digital temperature transmitter from WIKA enables extremely flexible and stable temperature measurement. The instrument offers a maximum of sensor connection combinations, and a new type of drift detection.
Read more...Temperature monitoring in the metal casting process Instrotech
Temperature Measurement
During metal casting, the liquid material is poured into a mould, and after solidification becomes a solid body. Both too-high and too-low casting temperatures can lead to quality defects. The compact Optris PI 05M infrared thermal imaging camera from Instrotech can monitor the casting process.
Read more...Pyrometer range with enhanced features
Temperature Measurement
AMETEK Land has relaunched its market-leading SPOT pyrometer range with enhanced features and benefits for a wide range of industrial applications. The new SPOT+ family offers a wide range of temperature measurement from 50 to 3500°C, and a choice of different wavelengths for applications including metals, glass, cement and lime kilns, and foundries.
printer friendly version