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 2.GQ Geiger Muller Counter
 GMC-600 / 600+
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ceandre27

9 Posts

Posted - 10/30/2017 :  07:07:33  Show Profile  Reply with Quote
Hi!

No one bought GMC-600 / GMC-600+ ???

I want to see a review / insde.

Thanks.
Reply #1

ZLM

1178 Posts

Posted - 11/02/2017 :  10:19:21  Show Profile  Reply with Quote
The GMC-600 has about five times higher sensitivities than GMC-300,500 series due to the SBT-11 pancake tube installed.
The GMC-600+ installed a LND 7317 pancake tube. It has about 7-8 time sensitivities than GMC-300,500 series.

For details, please see:
http://www.gqelectronicsllc.com/support/GMC_Selection_Guide.htm

UI simulation:
https://www.gqelectronicsllc.com/download/SoftGeigerCounterGMC600.exe


I had a chance to test both GMC-600 and GMC-600+. The user interface is similar to GMC-500, but they have much higher sensitivities. The GMC-600+ is the best Geiger Counter I ever tested.

I tested it with Morton Salt Substitute (Sodium Free), I got 475 CPM.




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Reply #2

ceandre27

9 Posts

Posted - 11/03/2017 :  08:05:41  Show Profile  Reply with Quote
Hi ZLM,

Thanks for reply.

And how about GMC-500+ (two m4011 tubes?) sensibility ?

Would be nice if GQ put a sliding door on GMC-600 family :)



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Reply #3

ZLM

1178 Posts

Posted - 11/03/2017 :  09:22:17  Show Profile  Reply with Quote
The GMC-500+ installed two tubes, one M4011 and one SI-3BG.

The M4011 is for regular sensitivity measures and the SI-3BG used to measure high range does.

It is true, it is nicer if there is a sliding door on GMC-600 series. However, the sliding door may increase the chances of mechanical failure rate. There are double layer protective nets on GMC-600 for protecting the pancake tube. That is sufficient for most of cases protection.
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Reply #4

ceandre27

9 Posts

Posted - 11/04/2017 :  14:15:28  Show Profile  Reply with Quote
ZLM,

Oh, then they'll work together, like those external probes of some russian counters (on those they normally use SBM-20 plus SI-3BG)?

Thanks again.
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