Greetings Seekers; Regarding Hanna Meters TDS & PWT. I have the PWT #98308. I know Ken (Coyote) has the TDS1. We have been comparing notes on batches made using the same CZen generators. As for me I spoke to the techs at Hanna. They said that with the PWT which measure conductance in us/cm, to convert to PPM I should divide by two. I made a sample batch of CS which measured 25.5 us/cm and sent it to the lab at CSPro systems to have it tested by PhotoSpectrometry. The results came back at 15 PPM. That would be 59% of the measured reading. This is how I now measure all my batches. Ken can tell you what fudge factor he uses for his TDS1. How about it Coyote? NAMASTE' Beldohr
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