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    Sulfur Denitrator: Who's running one?

    OK, I got the answer from Curt and thought I would report back: As a work around, you should be able to use the ORP connector in pH mode. A pH reading above 7.0 is a negative ORP reading. For every 1 unit of pH change the ORP is changing by about 58 mV. An ORP reading of -200 is equivalent to a...
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    Sulfur Denitrator: Who's running one?

    Do you think if I use the 700mv calibration solution and set it to 1000mv that I can use it as an accurate -300mv offset? Or does it not work like that?
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    Sulfur Denitrator: Who's running one?

    HI Carlo, I am having the same problem with a neptune probe and a crossover cable I made. Did you ever remember what the workaround was to get it to read -redox ? Thanks, Dan
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