TT058: Gordon 4-channel pH meter

Owned by Jim MacArthur
Last updated: Aug 17, 2022
1 min read

TipTop1590G with ToprpHADC.   Designed to be used with standard pH probes with BNC outputs, without temperature sensors.





ToprpHADC is a variation of ToprMagADC.  Again using the expensive, overqualified AD7172-4 because it's available

Schematic of ToprpHADC:



Arduino code:


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