What Is CF?

frednumber3(9)March 23, 2009

Ok that's it, searched for 45 minutes. Got a Bluelab Truncheon - CF, PPM and EC meter on the way. Question is, what is CF? I have no clue. Thank You, Fred


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freemangreens(Zone 10 CA)

Being a typical man, I don't as a rule "read directions". I too have a commercial Bluelab Truncheon and by golly, you're right. There it is in plain English, "CF".

I dunno!

I'm dropping a link to Bluelab's "Contact Us" from their Web page. They are very quick to respond to questions via email. I've contacted them on several occasions.

When you find out what the "CF" stands for, post it back here on the 4m so the rest of us can gain the knowledge too. Thanks.

Here is a link that might be useful: Bluelab's

    Bookmark   March 23, 2009 at 11:50PM
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greystoke(South Africa(11))

CF = Conductivity Factor = The electrical conductivity of the nutrient solution. Goes up and down with it's concentration Good method of comparing nutrient strength.
Don't use "ppm", cause these meters convert CF into ppm by multiplying it with a "fiddle factor". Use CF!. You'll get used to it quickly.

    Bookmark   March 23, 2009 at 11:57PM
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CF = EC x 10
not really sure why there are both though. It can make things confusing.

    Bookmark   March 24, 2009 at 7:46AM
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Thanks for the response Fellas, Once again, Very Much Appreciated, Fred

    Bookmark   March 24, 2009 at 9:34AM
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Thanks guys, for posting/answering the question! I'm just getting into hydroponics and I'm completely new to the lingo.. but this was helpful!

    Bookmark   October 24, 2010 at 8:54PM
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