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 GQ Geiger Muller Counter
 sudden jumps in CPM
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mgcdenmark

Denmark
1 Posts

Posted - 05/26/2016 :  11:12:55  Show Profile  Reply with Quote
Hi there.
I just bought the GMC-300E Plus Geiger.
It reads CPM aorund 12-20 - which i guess is normal. but 3 times during the afternoon it jumps up to appr. 200 and the alarm sounds.
Do you know why this happens ?- It falls down to normal level after 2 minuttes or so.
I have not calibrated the detector - should i do that ?

mgcdenmark
Reply #1

Distelzombie

Germany
165 Posts

Posted - 05/26/2016 :  14:09:57  Show Profile  Reply with Quote
Is someone carrying bright orange dishes around.

GMC-300E+ V4.20 with sbt-11 alpha tube

My statements are to be taken as stuff-a-hobbyist-says.
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Reply #2

ZLM

1047 Posts

Posted - 05/26/2016 :  16:52:34  Show Profile  Reply with Quote
I think you may need to watch it for a longer period. If it happened again , then contact support@gqelectronicsllc.com.
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