Homebrew PCBs

Kevin,

Here is a link to a site that explains the difference between the 
thermocouple types: 
https://www.instrumart.com/MoreAboutCategory?CategoryID=742&gclid=Cj0KEQiAhZPDBRCz642XqYOCpb8BEiQANUcwTyWZq5RBUZO0rrRfC-M4AGxYj7g7muRGW_8__DDxp9kaAh1q8P8HAQ&gclsrc=aw.ds

Operationally, the type K covers a wider temperature rance, but for the 
laminator project, the temperatures are nowhere near the limits for 
either type. The thermocouple type has to match the type required by the 
instrument you are using. The thermocouples are available with several 
different structures. In my case, I use a bead type that allows me to 
touch the rollers without conducting away significant heat. I can then 
get a reading with the case closed, giving me the most accurate picture 
of what happens in use. E-bay has the thermocouple and the instruments 
at very good prices. If you are going to use the bead type, order a few, 
because they are a bit fragile.

Harvey


On 12/29/2016 10:10 AM, Kevin Byrne kbyrne10@... [Homebrew_PCBs] 
wrote:
> Another question If I may. I have a Digi-Sense Digital Thermometer 
> Type J Thermometer. What if any is the difference between the two Type 
> K and Type J probes
> or is it internal?
>