Low price capacitive liquid level sensor water dispenser level sensor non contact level switch

:Working Principle:

Intelligent non-contact water induction capacitance liquid level sensor is used to detect whether there is liquid, when no liquid proximity sensors, due to the existence of the distributed capacitance sensors, so the sensor of some static capacitance, when the liquid level rise slowly close to sensors, liquid parasitic capacitance coupling to the static capacitance, the value of capacitance sensors, the change of capacitance signal input to control IC, signal conversion, will change the variation of capacitance is converted into a signal, again by a certain algorithm to detect and judge the degree of variation, when the change exceeds a certain threshold, the liquid level is considered to reach the induction point.

Features:

1) Wide range input voltage,high reliability,no mechanical linkage parts,no contact with liquids,small size,low cost,easy installation,trigger sensitivity;

2) Can be configured via one button;

3) Wide voltage supply DC 3.3 ~ 24V applicable;

4) Electrostatic protection design, output lead with electrostatic protection device, in line with THE IEC61000-4-2 standard;

5) Comply with EMC, RoHS;

6) Waterproof rating is IP67;

Electrical Parameters:

Applications:

Induction control of bottled drinking water:

Toilet tank induction control: