Duckster
Still Just a Rat in a Cage
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Need to calculate the HM Digital TDS EZ ppm pen. Got some bluelab 2.77EC (1385 ppm 500/ 1940 ppm 700) conductivity standard. Have the instructions on the TDS EZ on how to calculate. What number ppm do I calculate at 500 ppm or 700 ppm or ????
Man! Do I feel like a noobie.![]()
Calibrate to 1385