Instrumentation


while compact enough for use in R&D and automation. Arc is a high resolution radiometric thermal imager providing detailed thermal images with what the company describes as unsurpassed temperature accuracy. Arc is available with two temperature ranges (-20- 500°C


and 100-1000°C), four lenses, two frame rates and three software variants to meet exact user requirements.


Data processing Sophisticated data-processing is performed within the Arc camera. Connection to an I/O module is made via standard industrial Ethernet, offering stand-alone operation for a smarter image. Arc is supplied as standard with Arc Viewer software, which enables visualisation of the thermal data, while Viewer+ offers configuration of the Smart Camera features and LIPS allows full analysis, recording and playback of thermal data. The range of four lenses enables viewing of any target,


at any distance with outstanding image clarity. Coupled with this is the wide ambient temperature operating range making Arc suitable for everything from bench top monitoring to the most demanding industrial applications. Arc also uses remote motorised focus allowing quicker installation and safer and convenient operation.


Ladle refractory In addition, the company’s new Vessel Manager monitors ladle refractory condition for greater safety and control in molten metal operations. Designed for steel mills, copper smelters and other molten


metal processes, the system includes multiple thermal imaging cameras positioned to view the entire exterior surface of a molten metal ladle. The use of refractory lined vessels (ladles) to transport


molten iron and steel is commonplace in steel plants world- wide. Over time, the refractory condition degrades until it must be re-lined. Traditionally, the timing of these re-lines has been based


on previous experience and best practise information from the plant’s Refractory Manager. However, this mechanism can be unreliable and break-outs have occurred, causing severe damage to plant, personnel injuries and lost revenue due to production delays. Temperature information is collected each time the ladle


passes a measurement station, allowing assessment of the extent and distribution of wear to the lining. The system’s software creates actionable records for each ladle.


Preventing problems In particular, Vessel Manager data helps prevent two serious problems: accurate statistical measurement of lining wear allows managers to set realistic relining schedules, reducing both the cost of too-frequent maintenance and the risk of break-outs; constant measurement of temperature changes helps identify ladles that are threatening to fail earlier than predicted, sounding an alarm and lessening risk of plant damage and worker injury. By identifying the exact location of unexpected hot spots


in a particular ladle, the system allows some partial re-linings to extend the life of the ladle. ■


Circle 29 or ✔ at www.engineerlive.com/epe


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