Hi,
I am using a pH sensor to control pH of a chemical process in the laboratory. Since the sensor is not driven by any source, I am unable to look at the signal bcos of its very low deliverability (very low current). I was suggested by the manufacturer to provide an input impedence of the order of 10^12 ohms. I tried using a lf351n opamp for buffer connection with unity gain, but not successful. Is any body out there who have faced the same problem and can suggest any thing helpful. Thank you very much. I will be extremely greatful if you can send me an email at the following address.
n.karnachi@lmu.ac.uk
I am using a pH sensor to control pH of a chemical process in the laboratory. Since the sensor is not driven by any source, I am unable to look at the signal bcos of its very low deliverability (very low current). I was suggested by the manufacturer to provide an input impedence of the order of 10^12 ohms. I tried using a lf351n opamp for buffer connection with unity gain, but not successful. Is any body out there who have faced the same problem and can suggest any thing helpful. Thank you very much. I will be extremely greatful if you can send me an email at the following address.
n.karnachi@lmu.ac.uk