premkumar9
Member
Hi,
In a project, to sense water level I used electrical conduction through water as shown in the diagram. These are given to the input of OPAMP LM324. There is a long (abour 15 to 20 meters wire connection between the contact and OPAMP. This has been working well for the last one year. But one problem I faced is that in some cases there was a failure of OPAMP. I guess that it might be due to high voltage spikes (during lightning or so). Could anybody suggest a solution which can be implemented on the existing units?
In a project, to sense water level I used electrical conduction through water as shown in the diagram. These are given to the input of OPAMP LM324. There is a long (abour 15 to 20 meters wire connection between the contact and OPAMP. This has been working well for the last one year. But one problem I faced is that in some cases there was a failure of OPAMP. I guess that it might be due to high voltage spikes (during lightning or so). Could anybody suggest a solution which can be implemented on the existing units?