About CO sensor ( ppm range) code 27931

Joe

Hi,

Only to know the range of the CO sensor from Parallax (code 27931) .

I read the pdf but I can't find the answer about the range
of it.

Any information about the range will be usefull.

Thanks, Joe

PS: Here is the link:
http://www.parallax.com/Store/Sensors/GasSensors/tabid/843/CategoryID/91/List/0/SortField/0/Level/a/ProductID/547/Default.aspx

dandreae

I'm assuming that you are referring the the PPM?· If so, here is a link for the calibration process that will allow you to experiment, so that you can find the max range:


http://www.gotgas.com/pdf/GasSnsrCalibratn.pdf

Dave

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Dave Andreae

Parallax Tech Support·

Joe

Thanks ,


The problem I have is that I can't find the minimun range (in PPM)
of the sensor .

It is important to know about the range of the sensor because
I want to measure 50 PPM and I don't know if the sensor could sense
50 PPM or less.

Thanks, Joe

Chris Savage

Hello, please find the official datasheet for the CO Gas Sensor (MQ-7) attached to this post.

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Chris Savage

Parallax Engineering