Hello All,

Here is schematic - interfacing pH sensor with LMC6482 . It is not working properly. Please some one help me.

Thanks
Srinivas

 

It might help to describe the result you were expecting and the result you observed.

 

Hello,

Do you have a datasheet of the PH sensor?
If so, is there a typical schematic inside?

Bertus

 

When I dip sensor in pH 4 , pH 7 solutions , I am getting same output voltage , there is no change. Am i missed anything in schematic.

 

Hello,

Perhaps the attached PDF might give you an idea how to use a PH sensor.

Bertus

 

What is "solution ground" supposed to do?

 

When I dip sensor in pH 4 , pH 7 solutions , I am getting same output voltage , there is no change. Am i missed anything in schematic.

What are the voltages that you see?

Are you remembering to subtract the offset?

Are you allowing some time for the probe to respond to the change in ph?


Can you post the datasheet for the probe or at least tell us the name if the manyfacturer and the part number?