GQ Electronics Technical Support Forum Active Users: / Visits Today:
Highest Active Users:
GQ Electronics Technical Support Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 GQ Electronics Forums
 2.GQ Geiger Muller Counter
 Calibration intervals
 New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

Bronzetower

6 Posts

Posted - 09/05/2023 :  00:14:02  Show Profile  Reply with Quote
Iíve been running the GCM-500+ continuously 24/7 for about 10 months now. It was set up to measure ambient radiation and is logging datapoints every 2 minutes. Iíve noticed that for the first 7 months or so, I never saw any reading above 50 CPM. Now after 8 months Iím seeing 50CPM+ readings two or three times a day.

Iím wondering how frequently these things needs to be recalibrated?
Reply #1

ullix

Germany
1110 Posts

Posted - 09/05/2023 :  03:03:23  Show Profile  Reply with Quote
"Calibration" is of no help; it is only the introduction of a factor to convert from CPM to microSievert/h.

It looks like hardware defect. Try different USB-cable, check battery, check anode voltage.
Go to Top of Page
Reply #2

EmfDev

2148 Posts

Posted - 09/06/2023 :  10:48:06  Show Profile  Reply with Quote
Try to do a factory reset. Check if the 50+ CPM is consistent even in different areas.
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
GQ Electronics Technical Support Forum © Copyright since 2011 Go To Top Of Page
Generated in 0.07 sec. Snitz's Forums 2000