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Random Nonsense / Geek Stuff All those random tech ramblings you can't fit anywhere else! |
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#1 |
Thermophile
Join Date: Jun 2001
Location: The deserts of Tucson, Az
Posts: 1,264
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pHaestus you listening?
![]() I don't need awesome accuracy or anything, a basic unit would do fine. However I have no idea where to look. Also, do they make units that can plug into a multimeter like they do with some thermocouples? I think I remember seeing one a while ago. Thanks. |
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#2 |
Put up or Shut Up
Join Date: Dec 2001
Location: Spokane WA
Posts: 6,506
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#3 | |
Cooling Neophyte
Join Date: Sep 2001
Location: Houston, TX
Posts: 55
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#4 | |
Thermophile
Join Date: Jun 2001
Location: The deserts of Tucson, Az
Posts: 1,264
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![]() I'll check pool stuff but thats generally meant for pH around 6-8. |
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#5 |
Big PlayerMaking Big Money
Join Date: Aug 2001
Location: irc.lostgeek.com #procooling.com
Posts: 4,782
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Check www.labx.com
The problem is you don't just need a pH meter. For normal lab use, you'll need: pH meter, compatible pH electrode, pH buffers for calibration, and electrode fill solution. Finding any one of these on labx or ebay is trivial; finding everything is a chore. I am looking through the Fisher Scientific catalog now, and I see one promising new pH meter: The Corning Chekmite pH tester. This might be a good choice (it's a little handheld unit). $60CAD is catalog price. It states: pH 0-14, resoltion 0.01, accuracy +/- 0.2 units. It can be calibrated with normal pH 4, 7, and 10 buffers. Corning part #475660. Replacement electrodes are $31CAD, but provided that you are following storage directions it shouldnt be an issue. Call and ask; they can probably throw in any fill/storage solution for the electrode and the buffer samples at no charge. https://www1.fishersci.com/Coupon?ci...5728&details=Y I have used Corning semimicro electrodes for years (the fast response ones) and like their products quite well. /edit: link to product |
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#6 |
Cooling Savant
Join Date: Oct 2002
Location: midwest side, yo
Posts: 596
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__________________
:shrug: |
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#7 |
Responsible for 2%
of all the posts here. Join Date: May 2002
Location: Texas, U.S.A.
Posts: 8,302
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I found some parts (pH probe, calibrating solutions) at www.omega.com . You could probably slap something together, but you'll have to keep in mind the accuracy of it all: as pHaestus pointed out, a good meter is key here.
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#8 |
Cooling Neophyte
Join Date: May 2002
Location: Spain
Posts: 30
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#9 |
Responsible for 2%
of all the posts here. Join Date: May 2002
Location: Texas, U.S.A.
Posts: 8,302
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Check out Brians article on the coolants: when the pH becomes way off, it's an indication that it's time to flush and refill the system.
At least I assume that that was the purpose... |
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