I use three PWT meters to get an average and more accurate idea of what the
actual reading is. They usually agree within a microsiemen in the 20-25 uS
range. That's close enough for me. I sometimes check during the process at
the mid range of 10 or so and they agree there too. And they agree in
measuring the DW at startup.
Trem
----- Original Message -----
From: Ode Coyote
To: silver-list@eskimo.com
Sent: Tuesday, May 10, 2005 2:03 AM
Subject: Re: CS>Re: CS and PPM-levels
A Hanna PWT reads out in microseimens of conductivity. [uS]
Hanna also make TDS meters that read out in PPM.
They all work the same way and none of them directly measure PPM.
If any two identical meters read the same over their entire range, you got
lucky.
They're only good for getting a ballpark number.
A ballpark number is plenty good enough.
Taste buds and a laser pen are a lot cheaper...but don't give nebulous
numbers.
Ode
At 11:26 AM 5/9/2005 EDT, you wrote:
>>>>
In a message dated 5/9/05 8:49:55 AM Central Daylight Time,
odecoy...@alltel.net writes:
Essentialy, double a PPM/TDS meter reading to get conductivity [uS]
uS = PPM ..in CS/EIS..after conductivity stabilizes.
Ode -- please -- are you referring to a Hanna tester here? MA
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