-
I went to one of their four day classes. During the class they emphasized that we were NEVER to use any kind of  abrasive cleaning pads on any of the glass for any reason. This would include Scotch Brite type pads. They had found that these pads would create micro scratches in the tempered glass and, weaken it enough that when heated, would cause it to shatter/explode.
As for that model number, if you have a SCC digital display, you can bring up the model number by touching  the pad for the info and it will bring up the model and serial number. If you ever call Rational, you will find that they usually want the full model number. The serial number is secondary. Kinda like Hobart, They only want the ML number first.  Â