Designing a pH sensor circuit

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jabezdavid

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Hi i Need to design a pH sensors circuit that could be interfaced with Basic stamp. i need some help from you
 


Re: pH electrode

thank U for the link. i have a doubt in the circuit. what does it mean?? the one which I circled.
 

pH electrode

Hi,
"+6-12" means: used Positive supply between +6 and +12V.
"COM" means: Common or GND... (=Ref Potential for Supplies/Signals etc...)
K.
 

Re: pH electrode

in the above circuit, RT1 is potentiometer and value is 10K ohms and what is 15T means. Is it mean 15 turns or 15% tolerance ???
 

Re: pH electrode

For precision you'll need a multiturn VR, so 15T means just that: 15-turn VR ..

IanP
 

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