[Amps] What blower?

[Steve Thompson]

Gary Schafer wrote:
> I wonder if those IR thermometers won't give a false reading of glass
> temperatures because of also picking up the direct radiated IR from the
> tubes plate as it is operating.
A lot of the IR thermometers have a fixed emissivity setting which is 
wrong for glass (and maybe shiny metal). The simple fix is a patch of 
correction fluid like Tippex or Snopaque (?), which has pretty close to 
the right value. I imagine it might attenuate the direct IR as well.

Steve