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Reload this Page what ppm scale should i use? ec x 700 or ec x 500


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Old 04-20-2009, 03:41 PM
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Question what ppm scale should i use? ec x 700 or ec x 500
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what ppm scale should i use? ec x 700 or ec x 500??
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Old 04-20-2009, 07:45 PM
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Old 04-21-2009, 07:56 AM
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Quote:
Originally Posted by macwmv View Post
what ppm scale should i use? ec x 700 or ec x 500??

I don't understand your question. What meter are you using? Some meters are calibrated to calculate 500 ppm = 1.0 ec and some calculate 700 ppm = 1.0 ec.
 

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