Fluid Level Detector using LM1830N| Circuit Project

The IC is ideal for detecting the presence, absence or level of water or other conducting liquids. A detector determines the presence or absence of fluid by comparing the resistance of the fluid with the IC’s internal reference resistance. An AC signal is used to prevent plating of the probe. When the probe resistance increases the loudspeaker will emit a 500Hz tone. Alternatively an LED could be connected.

Source: http://www.next.gr/inside-circuits/
Fluid-Level-Detector-LM1830N-l5866.html

This entry was posted on Monday, November 17th, 2008 at 5:59 am and is filed under Audio - Alarm, detector.

Circuit diagrams and schematics - Electronic projects

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Fluid Level Detector using LM1830N