Capacitive Liquid Level Sensor_Chuandong Magnetoelectric

Capacitive Liquid Level Sensor

DSW-3 series (non-contact liquid level module)

FEATURE ：
1.Accuracy can reach ±1mm & Millisecond response time
2.No direct contact with liquid, no corrosion, no pollution
3.Working environment temperature -20＜T＜150℃
4.Can continuously detect the height of multi-stage liquid level; Can integrated temperature and humidity module, automatically calibrate environmental parameters.

APPLICATION ：
Scenarios such as ice makers, integrated washing and mopping machines, vegetable washing machines, water purifiers, intelligent toilets, refrigerators, air purifiers, steam grills, aromatherapy machines, solar water heaters, commercial boiling water machines, and single point or multi break multi-stage liquid detection and liquid level control. The non-contact liquid level module can be applied to automatic dispensing scenarios such as washing machines and dishwashers.

Service Hotline：400-930-4382

Detailed Description：

WORKING PRINCIPLE：

The DSW-1 and DSW-2 series of capacitive liquid sensors utilize the principle of capacitance. When the liquid height reaches the contact surface of the sensor, it will cause a change in capacitance value. The controller compares the change amount and converts it into a high and low level or voltage value output signal. The external control board can determine the corresponding liquid level height by detecting the high and low level signals or different voltage values. The DSW-3 series non-contact liquid level module also integrates signal detection functions of optocoupler liquid level sensors and liquid level switches. The signals are processed by the module and then output together, reducing the number of connecting wires.

TECHNICAL REQUIREMENT：

Product	Structure	Operating Voltage	Output Current	Output Signal	Accuracy	Response Time	Operating Temp.	Storage Temp.	Applicable Medium	Remarks
DSW-1/DSW-3	Non-contact	DC 5±0.3V	＜15mA	High/low level signal	Return difference between on and off is ≤3mm	＜100ms	-5~80℃	-20~85℃	Liquids with capacitance value such as water and ethanol	not for metal containers， container thickness≤10mm
DSW-2	Immersion Single Point Control	DC 5±0.3V	＜15mA	High/low level signal		＜100ms	-5~80℃	-20~85℃		Can be applied to some viscous liquids, such as oil
DSW-2	Immersion multi-point control	DC 5±0.3V	＜15mA	Voltage value		＜500ms	-20~150℃	-20~85℃		Range can be customized

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