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Help me with building a pH meter

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ghettoman

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ph meter

anyone build such a metter.did you have any schematics?
thanks
 

mozcam

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i did it with only one chip"opa128"from texas instruments and you can find schematic in datasheet
 

toreador

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Re: ph meter

I have got an PH meter with an easy circuit make with OP129 (ti.com). But temperature compensation in made via software.
 

Analyzer

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Hi,

Try to request op129 samples from ti.They can send samples and also request sample codes.

Analyzer
 

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