[Acoustics] Argonaut SW stage problems

[Andrew F Watson]

Hi,

I am using an argonaut SW and the stage sensor goes bad (it kicks out 
-1.00) everytime the water temperature approaches freezing.  When I'm 
actually at the site and I run the continuous level command it gives me 
bad readings for a few minutes and then it starts to give me the correct 
level. However, as soon as I leave it in SDI mode it will only give me 
-1.00 again. I do have the sensor set for ice detection, but the same 
problem occurred with this function turned off. Sontek did give me a 
firmware update, but it did not seem to help much. Has anyone had any 
similar problems with the SW?

Thanks,

Andrew F. Watson
Hydrologic Technician
U.S. Geological Survey
(609) 771-3993
afwatson at usgs.gov
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