Just got a CB-70 and am setting it up now. This is my first ever rack, and I need some help understanding how to properly use the Ranco thermostat. I placed the probe in the middle of the rack, directly touching the heat cable. Is this ok? Also, when I plugged everything in and programmed the temp, it say's "DIF1" and then "H1". What does this mean? Finally, what temp do you guys recommend setting the Ranco at? Any help will be greatly appreciated!!

