All Forums  GQ Electronics Forums  2.GQ Geiger Muller Counter  GMC-800 records lethal doses on start-up

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by Todd[/i] [br]I'm a new (and unsophisticated user). I had my GMC-800 for about a week, and it seemed to work fine. Then all of a sudden, when I turned it on it started reading incorrect, very lethal (100,000+ CPM) doses on start-up where background reading before was 15-25 CPM. I don't know if I bumped into another mode or something, but it's clearly not working correctly. I have done a factory reset numerous times with no effect. The device has not been in contact with any radioactive material. [/quote]    Insert an Image File Check here to include your profile signature.