DC 5-30V Non-Contact Liquid Level Sensor Water Alarm Induction Switch Detector
Parameter
- Input voltage: DC 5-30V
- Response time: 500Ms
- Level Error: ±1.5mm
- Wire length: 1.2m(47 inches)
- Humidity: 5% ~ 100%
- Material: ABS
- Waterproof level: IP65
- Operating temperature: -5℃ ~ 105℃
- Wiring: Brown=power "+" , Blue=power "-" , Black=signal , White="NPN normally open"(when hang up) or "NPN normally closed"(when white and blue wires connected together)
Sensor sensitivity adjustment
- Counterclockwise adjustment increases the sensing distance, and clockwise adjustment decreases the distance
- The sensor can sense human hands, so it is recommended to adjust the sensor after installing it in a fixed position to avoid human hands appearing in the sensing range
Measuring output voltage
The sensor is NPN normally open output , collector open output, when no load is connected and only a multimeter is used for measurement, the high level value is virtual electricity and has no practical significance.
The sensor should be connected to a load less than 0.2A(alarm light , small relay,pull-up resistor, optocoupler...etc...), then use a multimeter to measure the output terminal, and the data will be valid.
"Normal Open": Output signal when liquid is detected ; "Normal Closed": Output signal when no liquid is detected