There are different calibration solutions for these Hanna EC/TDS meters. It seems confusing to me that there are different calibration standards (1382, 1500, etc.).
Is there one standard that is recommended?
If not and people do not use the same standard then how can we make sense out of the ppm values people talk about?
Three different people measuring the same reservoir will come up with different ppm numbers depending on the calibration standard they used to calibrate their meter. Can anyone help a new hydro grower make sense of this?
Is there one standard that is recommended?
If not and people do not use the same standard then how can we make sense out of the ppm values people talk about?
Three different people measuring the same reservoir will come up with different ppm numbers depending on the calibration standard they used to calibrate their meter. Can anyone help a new hydro grower make sense of this?