The common ANSI color code for K-type is yellow. The wire jacket is yellow (must be the same as the thermocouple wire because the lead wire is thermocouple wire) and the connector on the sheathed thermocouple is yellow. There is not really an ANSI color code for B-type, but I think most common is gray.
B-type uses platinum for one of the wires, making it quite expensive. Note the long lead lengths of the wires in the photo. On Tue, Nov 4, 2014 at 11:55 PM, Eric Walker <[email protected]> wrote: > On Mon, Nov 3, 2014 at 5:15 PM, Bob Higgins <[email protected]> > wrote: > > From the other pictures, it is pretty clear that Rossi is using a sheathed >> k-type thermocouple with the hotCat. Because this thermocouple is not >> rated to operate at the temperatures that the reactor convection tube was >> supposedly operating, it appears that Rossi had placed (by design) the >> thermocouple in a cooler section of the hotCat (the end for example) ... >> > > I'm curious what details distinguish a k-type thermocouple visually from a > b-type thermocouple, which are identifiable in a photograph. (I note that > Wikipedia says that a k-type thermocouple can be used up to 1350 C [1].) > > Eric > > [1] http://en.wikipedia.org/wiki/Thermocouple#Type_K > >
