Hi from Guanajuato, Mexico
7 years 1 month ago #2830 by Bert490
Hi and welcome to the group. I see by your graphs that the SBM-20 tube change you did increased your average CPM values from around 25 to around 30. The only thing to update might be your warning and alert levels, but the default 50 and 100 might still be OK. These define when your map icon turns yellow and red and when you get an email (if set up). Your conversion factor of .0057 (used when display units are uSv/hr instead of CPM), is what most people with an SBM-20 also use, so it should be OK as-is.
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