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help with ph meter

 
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jphussey




Joined: 17 Oct 2012
Posts: 171



PostLink    Posted: Sat Mar 24, 2018 3:20 pm    Post subject: help with ph meter Reply with quote


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I've noticed that when I use my Hanna pH meter, same one Kal recommends, the pH seems to slowly but constantly climb when I leave it in water or the mash. Is that normal? I've calibrated recently so I am pretty sure that's not an issue.

This is about a 6 month old meter and I've always kept it in storage solution.
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kal
Forum Administrator



Joined: 12 Dec 2010
Posts: 11116
Location: Ottawa, Canada

Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter


PostLink    Posted: Sat Mar 24, 2018 7:07 pm    Post subject: Reply with quote

How was the probe tip when you bought it? Was it still moist?

Reason I ask is that I've heard of some getting ones that have been sitting for a long time and the tips have dried out / need replacing. Normally if it drifts over time, that's because it's old. Under normal use it should stabilize on a reading (more or less - jumping around by .01 or .02 is probably to be expected).

I still have my original tip, purchased in 2009.

Kal

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jphussey




Joined: 17 Oct 2012
Posts: 171



PostLink    Posted: Sun Mar 25, 2018 12:14 am    Post subject: Reply with quote

Hmm, I honestly don't remember it being moist or not when I bought it.

It doesn't seem to swing wildly, but it was just climbing by .01...first somewhat quickly and ten gradually getting slower and slower. About how long does it take to 'stabilize' on a reading?
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kal
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Joined: 12 Dec 2010
Posts: 11116
Location: Ottawa, Canada

Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter


PostLink    Posted: Sun Mar 25, 2018 1:27 am    Post subject: Reply with quote

jphussey wrote:
About how long does it take to 'stabilize' on a reading?

Good question. I don't think I've ever timed it, but it's usually just a few seconds. A really crappy video of me using it about 10 years ago:

https://youtu.be/frsuCg35V8Q?t=2m8s

Kal

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We ship worldwide and support our products and customers for life.
Purchasing through our affiliate links helps support our site at no extra cost to you. We thank you!
My basement/bar/brewery build 2.0
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