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 GMC 800 Fast Estimate "Dynamic" setting		  New Topic  Reply to Topic
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bzzz

2 Posts
Posted - 06/02/2024 :  15:15:32  Show Profile  Reply with Quote
New member here. I just bought the GQ GMC 800 (for fun, mostly) and am trying it out. I have some familiarity with the general concepts involved but am by no means an expert.

One question:
1) In the Menu area there is a "Fast Estimate" setting called "Dynamic". If possible I would like to hear an explanation of how that setting works. (The other choices are 60 seconds, 30 seconds, 20 seconds, 15 seconds, etc.)

Thanks!

(post edited to reduce size)
Edited by - bzzz on 06/04/2024 07:35:01
Reply #1

EmfDev

2250 Posts
Posted - 06/05/2024 :  11:27:51  Show Profile  Reply with Quote
CPM = Counts per minute. 1 minute = 60 seconds.
fast estimate settings:
60 seconds = uses a 60-second window to calculate the CPM. So it would take a whole minute to get an accurate reading.
30 seconds. uses a 30 second window to estimate CPM. so it takes last 30 second reading and multiply by 2.
same as 20,15,etc. just different multiplier.
Dynamic = detects if there is a significant change of incoming counts so that it uses a faster estimate time to get CPM. usually starts at 3 seconds. this window then slowly increases as long as it does not detect any significant change in counts to get a more accurate readings.
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Reply #2

Tony81269

USA
68 Posts
Posted - 09/23/2024 :  19:36:42  Show Profile  Reply with Quote
quote:
Originally posted by EmfDev

CPM = Counts per minute. 1 minute = 60 seconds.
fast estimate settings:
60 seconds = uses a 60-second window to calculate the CPM. So it would take a whole minute to get an accurate reading.
30 seconds. uses a 30 second window to estimate CPM. so it takes last 30 second reading and multiply by 2.
same as 20,15,etc. just different multiplier.
Dynamic = detects if there is a significant change of incoming counts so that it uses a faster estimate time to get CPM. usually starts at 3 seconds. this window then slowly increases as long as it does not detect any significant change in counts to get a more accurate readings.


I recently found that I had problems with the dynamic setting while trying to read really low dose. There was too much variation and I couldn't get a good survey. I put it in 60 seconds and it gave me confidence in what I was reading
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