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Negative CO2 readings???

  • Thread starter Thread starter pHreshperspective
  • Start date Start date Jan 25, 2020
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Negative CO2 readings???

pHreshperspective Jan 25, 2020 6 Replies 694 Views
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pHreshperspective

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#1
Recently, my Autopilot has been displaying a negative number (14595) during their sleep cycle. I have researched it and cant figure out why?
 
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BudsAlive

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#2
Maybe check battery or replace it
 
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pHreshperspective

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#3
BudsAlive said:
Maybe check battery or replace it
Click to expand...
There isnt a battery. I works fine all day. Its just a light out thing and it takes about 4 hours before it happenes
 
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Dbear180

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#4
Might be a calibration indicator. When was the last time you did a calibration?
 
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pHreshperspective

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#5
Yesterday, and whats really wierd is that it shows "0" as the low and the -14595 as the hi
 
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Dbear180

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#6
Weird. Idk man... do you have to take it outside for a while to calibrate it? I remember my sentinel manual saying something about that to adjust to ambient air c02 but I don't remember the specifics.
 
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AuntieKush

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#7
Dbear180 said:
Weird. Idk man... do you have to take it outside for a while to calibrate it? I remember my sentinel manual saying something about that to adjust to ambient air c02 but I don't remember the specifics.
Click to expand...
That's the right thing. A lot of these CO2 sensors need to be taken outside for a few hours once a week or something. Check the manual for your autopilot.
 
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Thread info

Replies 6
Views 694
Started Jan 25, 2020
Latest post Jan 27, 2020
Starter pHreshperspective
Forum General Indoor Growing

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