simpleleaf
Well-Known Member
As simple as I can make it: In what S/cm scale does the Bluelab truncheon measure EC?
"Runoff pH is useless" or "Keep an open mind"?
- Thread starter simpleleaf
- Start date
As simple as I can make it: In what S/cm scale does the Bluelab truncheon measure EC?
twentyeight.threefive
Well-Known Member
mS/cm
jondamon
Well-Known Member
as simply as I can make it I don’t care lol.
it measures EC. What do I care if it’s in S/cm or ms/cm
EC is measured 0.0-3.8 on my truncheon.
i know my grows EC between 0.6-1.4 why would I concern myself with all the technical nonsense that I don’t need to know.
simpleleaf
Well-Known Member
A person may not need to know as they practice using it by themselves. If they're communicating with others, then a number without a scale is basically meaningless, and may lead to confusion and misunderstanding. Any number between 0 and 14 could be referring to pH. If it's clear they mean EC because they stated that next to the number, then 1.4 mS/cm is a vastly different EC from 1.4 µS/cm. Which one is it?
See what I mean?
PopAndSonGrows
Well-Known Member
jondamon
Well-Known Member
I think you are getting confused between EC - Electrical conductivity and CF - Conductivity Factor
Where 1.0EC = 10CF
0.8EC = 8CF etc.
EC is universal. It does not change. It’s a constant.
It’s only when people are using CF/PPM/PPM/TDS where it gets skewed.
When measuring in EC, the resulting testing number will be based on 0.0-5.0 for example depending upon the amount of salts found in the solution.
jondamon
Well-Known Member
jondamon
Well-Known Member
From Bluelab
These are the four most common conductivity scales:
These are the four most common conductivity scales:
- EC (Electrical Conductivity) [1 mS/cm2 = 1 EC]
- PPM (Parts per Million) [EC x 700]
- TDS (Total Dissolved Solids) or DS (Dissolved Salts) or MS (Measured Salts); otherwise known as PPM 500 [EC x 500]
- CF (Conductivity Factor) [EC x 10]
jondamon
Well-Known Member
When nutrients dissolve in water, they split into ions. Each of these ions carry an electrical charge, which creates the potential for electricity to move through that solution. Pure water, on the other hand, is a poor conductor of electricity as it doesn't contain ions. The more ions a solution contains, the better it can conduct electricity.
EC is measured in milliSiemens per centimetre, but, unlike pH, there is no universal scale for measuring conductivity. In fact, there are at least four common scales in use, so it's always important to be aware of the scale your conductivity meter - and your nutrient supplier - is using.
EC is measured in milliSiemens per centimetre, but, unlike pH, there is no universal scale for measuring conductivity. In fact, there are at least four common scales in use, so it's always important to be aware of the scale your conductivity meter - and your nutrient supplier - is using.
simpleleaf
Well-Known Member
So Wikipedia was confused when they stated that EC is traditionally cited in µS/cm? Anyone can edit Wikipedia, maybe someone should go over there and correct it?
hotrodharley
Well-Known Member
He seems like the kind.
jondamon
Well-Known Member
Maybe people should stop looking at publicly editable websites and use something more accurate lol.
like I said EC is constant. It doesn’t change how it’s measured.
the only thing that changes is peoples interpretation of EC.
I’ll admit I didn’t know it was mS/cm but I did know that EC is EC it’s not interchangeable.
1.0EC is 1.0EC
500ppm could be 1.0EC or it could be 0.7EC depending upon which PPM calibration is used.
the EC value doesn’t change if it’s measured in EC simple fact.
Turkey pot pies!
TintEastwood
Well-Known Member
EC is EC.
I'm curious who uses anything but the hanna 500 scale for ppm? Non US?
I'm curious who uses anything but the hanna 500 scale for ppm? Non US?
hotrodharley
Well-Known Member
Hair Pie!Turkey pot pies!
TintEastwood
Well-Known Member
jondamon
Well-Known Member
God knows within the EU more often than not people are using EC as it’s more universally accepted as a nutrient strength measurement and there is no confusion with calibration (unless your name is @simpleleaf lol)
