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 2.GQ Geiger Muller Counter
 Counter stops working after about 7 seconds
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hanyap

USA
5 Posts

Posted - 01/04/2012 :  17:36:14  Show Profile  Reply with Quote
Greetings.

My husband purchased this counter for me for Christmas and I just installed the software to-day. While I had the counter attached to my computer during adjustment/sensitivity calibration, it began to behave oddly; it stopped clicking. Now when I cycle the power it will click for about 5-7 seconds before it stops, even if there is a radiation source nearby (a confirmed 6,000 cpm piece of uranium ore). I cycle the power again, it clicks for the first few seconds, then falls silent. Any suggestions? Is it in an odd mode somehow?

Thanks for the assistance!
Reply #1

ZLM

1271 Posts

Posted - 01/05/2012 :  14:30:57  Show Profile  Reply with Quote
which model of your counter?

Check your connection and Microphone settings. That will block the counting if it does not not set correctly.
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Reply #2

hanyap

USA
5 Posts

Posted - 01/05/2012 :  18:30:17  Show Profile  Reply with Quote
It's a GMC -200.

WHen you say microphone settings, what do you mean? I plugged and replugged the counter back in, is there something in the sound settings I need to look at? Thanks!
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Reply #3

hanyap

USA
5 Posts

Posted - 01/05/2012 :  20:26:48  Show Profile  Reply with Quote
I tried it disconnected from my machine, and it still does the same thing; it detects for about 5-7 seconds then doesn't respond unless I cycle the power.
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Reply #4

ZLM

1271 Posts

Posted - 01/07/2012 :  09:34:13  Show Profile  Reply with Quote
I think it may be related to your Windows. Try on second computer and see if it do same thing. I assume your GMC-200 still sound "Clicks" when the software stop.

The software uses microphone port to read data. So, if your windows microphone level is set to 0, then the software is unable to detect the "clicks" signal.

also, the software is able to adjust gain in the settings to control the input signal level.
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Reply #5

hanyap

USA
5 Posts

Posted - 01/08/2012 :  17:16:45  Show Profile  Reply with Quote
As I said previously, I tried it NOT connected to my computer, and I still see the same behaviour. It is just attached to wall power, and it registers activity for about 7 seconds before it stops.
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Reply #6

ZLM

1271 Posts

Posted - 01/09/2012 :  14:18:21  Show Profile  Reply with Quote
If the unit stopped the click forever even with radiation source, then it may have some problem. It will not clik if the tube voltage out. It should be arround 400V. Are you able to check the tube voltage?

See:
http://www.gqelectronicsllc.com/forum/topic.asp?TOPIC_ID=3396


If the voltage is correct, but the unit no activities, then you may need to send it back for the warranty. write to support@gqelectronicsllc.com for the RMA.
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Reply #7

hanyap

USA
5 Posts

Posted - 01/10/2012 :  17:24:56  Show Profile  Reply with Quote
I left the unit unplugged with the battery disconnected over the weekend, and then hooked it back up, and it appears to be detecting for longer than 7 seconds or so (before it would stop detecting after a short period). I haven't hooked it back up to calibrate the software, but with it just plugged into power, it's working as it did out of the box.

Perhaps being disconnected from power reset it somehow? I'll post again if it starts acting odd... how long is the warranty period for in case in starts misbehaving? As I said, it's working fine now, but I'm concerned that I had a glitch so early on.

Thanks,
Hanya
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Reply #8

ZLM

1271 Posts

Posted - 01/12/2012 :  00:55:00  Show Profile  Reply with Quote
the products comes with one year factory warranty. The warranty includes free service. You only need to pay the shipping cost back to you.
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