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	FORUM ON BEER, HOMEBREWING, AND RELATED ISSUES
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Contents:
  Re: pH Meters (Pete Calinski)


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Date: Mon, 18 Nov 2013 22:47:48 -0500
From: Pete Calinski <pete.calinski at gmail.com>
Subject: Re: pH Meters

AJ,

I was hoping you were lurking around when I posted these questions.  Thanks 
and thanks to Martin.

You guys have sent me on a path to really understand my pH meter.

Some observations.  It drifts measuring distilled water and tap water but 
not the 7.01 and 4.01 solution.

I was mistaken when I said the instructions said to store it in 7.01 
solution.  They said a special solution which was not packaged with the unit 
even though they packed two 7.01 and two 4.01 packs and two packs of 
cleaning solution.  I picked up a bottle of storage solution at my homebrew 
place today.  I guess the pH meter makers are like printer companies.  Don't 
make much on the unit but make up for that on the extras.  $19.00 for the 
storage solution.

So now I will concentrate on calibrating and checking calibration then drift 
in various situations, etc.

I also found (and lost for now) a site with a lot of information about how 
to clean and "recondition" a probe.  It says that sometimes corrects the 
drift problem.

If anything come out of these experiments I'll post here.

Thanks again AJ and Martin,

Pete



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