how did you manage to connect the resistor(s) to the stainless rods
You thread one end of the rod and use 2 nuts and two washers to hold the resistors wires.
did you find the readings highly non linear over the range? At times it is difficult to resolve the levels, especially at the lower end
Linearity depends on the liquid in use (how many ions you have in suspention) but don't expect very high linearity from it.
You can always correct the reading via software knowing the real values taken on the bench shorting the electrodes one by one.
Al.
Last edited by aratti; - 18th July 2009 at 18:22.
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