Water-Level Measurement Circuit

Using a capacitor sensor to detect a water level is a simple method of sensing. This circuit uses C5, which
Water-Level Measurement Circuit - schematic

is 10` to 20` of #22 enamelled wire as one electrode. This shifts the oscillator, an NE556 timer, in frequency. The frequency shift depends on the capacitance change, which in turn varies with water level. A meter connected to pin 9 of the 556 is used as an indicator. C5 can be made larger or smaller to suit the intended application.

Recommended videos

  • water level detection for overhead tank
    Duration: 5:30.
  • How To Make A Water Level Indicator
    Duration: 7:53.
  • Make a Water Level Indicator at Home ( Hindi / Urdu )
    Duration: 4:20.