So I’ve an inline dual TDS Meter for both reels and also a handheld TDS metre. Inline TDS metre said my resin bottle No.1 needed changed at 2ppm and handheld also read 2ppm. So changed it and inline read 0ppm and handheld reads 2ppm calibrated the handheld back to 0ppm. Now the other inline TDS reading prong when put into the sample of pure it reads 7ppm and has been giving a false reading of my other resin bottle even when tested with the handheld TDS metre. Is it a case of just screwing of the back of the inline metre and turning a screw like the handheld ?
hope this makes sense ?
hope this makes sense ?