I've approved links for Daveb22 to link to charts on his own website. There should be no advertising links or links to sites not his own.
"If science can't be questioned, It's not science anymore"
~Aaron Rogers
"This is not an economic turndown, it is a takedown"
~ Catherin Austin Fitts
So I take it the jist of all that is:
The Vivosun meter reads in mico-siemens (?S) and the PPM reading is on the Hanna (500) reference scale so,
When in EC Mode, if that meter reads 968 ?S, you convert that 968 ?S value to milli-siemens (mS) by multiplying 968 ?S by 1000 to get 968 mS (which is normally referred to as an EC value of 0.968ec).
You can then convert to ppm by multiplying the 968 mS (milli-siemens) value by .5 to get 484ppm.
That is why the meter in EC mode would read 968 ?S/cm (which is also = 0.968 mS/cm) and 484ppm when in PPM Mode
However, for those who like simple things, with that meter, if you drop all the ?S/mS reference confusion and simply remember:
In EC mode:
A displayed value of 1000 = 1.0ec. A displayed value of 500 = 0.5ec.
You can simply take the displayed value (eg: 968) and multiply it by .5 to get the ppm value (eg: 968 * .5 = 484ppm)
In PPM Mode:
You can simply convert the PPM value (eg: 484) back to EC ?S/cm by dividing the displayed value by .5 (484/.5 = 968?S)
You can simply convert the PPM value (eg: 484) back to EC mS/cm by dividing the displayed value by 500 (484/500 = 0.968mS)
Dave
EC is how easy it is to conduct electricity between the 2 ( or more ) electrodes on the meter via the medium you are testing.
The more salts, the more conductivity ( the less resistivity )
Takes me back this stuff love it
You literally cant get electricuted, or feed plants with EC 0 water.
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