A natural replacement to the Barber Colman series of Carburizing Controllers is the 3504 from Eurotherm. Please visit the Eurotherm website for details on this controller: http://www.eurotherm.com/products/controllers/multi-loop/3500/3504/ A direct configuration between the Barber Colman 560/570 models and 3504 can be found at the following link: http://www.eurotherm.com/services-support/online-support-tools/barber-colman-560-570/
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