Non-contact_Liquid_Level_Sensor_XKC-Y25-T12V_SKU__ ...
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- What is XX series
- How to select series
- How it works series
- PinPong Library
- Introduction
- Specification
- Board Overview(V1.0)
- Board Overview(V2.0) Pin definition of liquid level sensorPin definition of adapter boardV2.0 version sensitivity adjustment method description
- Tutorial Touble ShootingRequirementsConnection DiagramSample CodeExpected Results
- FAQ
- More Documents
Introduction
The non-contact liquid level sensor utilizes advanced signal processing technology by using a powerful chip with high-speed operation capacity to achieve non-contact liquid level detection. Without contacting with a liquid, the module suitable for hazardous applications such as detecting toxic substances, strong acid, strong alkali and all kinds of liquid in an airtight container under high pressure. There are no special requirements for the liquid or container and the sensor is easy to use and easy to install. The liquid level sensor is equipped with an interface adapter that makes it compatible with DFRobot "Gravity" interface. There are 4 levels of sensitivity which are set by pressing the SET button.
Specification
- Operating Voltage (InVCC) : DC 5 ~ 24 v
- Current consumption: 5 mA
- Output voltage (high level) : InVCC
- Output voltage (low level) : 0V
- Output current: 1 ~ 50 mA
- Response time: 500 ms
- Operating Temperature : 0 ~ 105 ℃
- Range for thickness of induction (sensitivity): 0 ~ 13 mm
- Humidity: 5% ~ 100%
- Material: ABS.
- Waterproof performance: IP67
- Dimension : 28 * 28 mm / 1.1 * 1.1 inches
Board Overview(V1.0)
Board Overview(V2.0)
Pin definition of liquid level sensor
| Number | Name | Function description |
|---|---|---|
| 1 (brown) | VCC | Liquid level sensor power supply positive pole, range +5V~+24V |
| 2 (yellow) | OUT | Liquid level sensor liquid level signal output |
| 3 (blue) | GND | Liquid level sensor power supply negative pole |
| 4 (black) | ADJ | NULL |
Pin definition of adapter board
| Number | Name | Function description |
|---|---|---|
| Left 1 | VCC | Liquid level sensor power supply positive pole |
| Left 2 | IN | Liquid level sensor liquid level signal input |
| Left 3 | GND | Liquid level sensor power supply negative pole |
| Left 4 | ADJ | NULL |
| Right 1 | OUT | Liquid level signal output |
| Right 2 | VCC | Positive power supply |
| Right 3 | GND | Negative power supply |
V2.0 version sensitivity adjustment method description
If the detected liquid level cannot be detected or there is a deviation from the sensor distance, open the sensor back cover and use a small screwdriver to adjust the sensitivity knob.
- Turn counterclockwise to increase sensitivity.
- Turn clockwise to decrease sensitivity.
Tutorial
Touble Shooting
| Symptom | Possible Cause | Solution |
| No reaction when powered on(the indicator keeps off when the liquid level reached the induction point, no reaction when adjusting sensitivity) | 1.Power connection problem | Check and connect the power supply properly |
| 2.The negative and positive are disconnected | Connect the power properly | |
| 3.Power module is damaged | Change the power module | |
| 4.Sensitivity is too low | Increase the sensitivity | |
| The indicator always keeps on | 1.Sensitivity is too high | Decrease the sensitivity |
| 2.There are impurities in the inductor, or other metal objects near the inductor | Clean the inductor, and keep it away from other metal objects | |
| 3.The liquid container is not insulative completely | Change the container or drill mount holes on the container to install the inductor |
Requirements
- Hardware
- Arduino UNO x1
- Liquid level sensor x1
- Software
- Arduino IDE V1.6.5 Click to Download Arduino IDE from Arduino®
Connection Diagram
Sample Code
/*! * @file SEN0204.ino * @brief This example is to get liquid level. (Liquid Level Sensor-XKC-Y25-T12V) * @copyright Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com) * @license The MIT License (MIT) * @author jackli([email protected]) * @version V1.0 * @date 2016-1-30 */ int liquidLevel = 0; void setup() { Serial.begin(9600); pinMode(5, INPUT); } void loop() { liquidLevel = digitalRead(5); Serial.print("liquidLevel= "); Serial.println(liquidLevel, DEC); delay(500); }Expected Results
If the liquid level sensor detects the presence of liquid, it will output HIGH and turn the LED ON. If no liquid is detected it output LOW and turn the LED off.
FAQ
| Q&A | Some general Arduino Problems/FAQ/Tips |
|---|---|
| Q | What is the sensor working principle? |
| A | Its working principle is to use the water sensing capacitor to detect whether liquid is present. In the absence of liquid near the sensor, there will be a presence of distributed capacitance, and therefore there are some certain static capacitance to ground on the sensor. When the liquid level slowly increases close to the sensor, the parasitic capacitance of the liquid will be coupled to the static capacitance so that the final capacitance value of the sensor becomes larger and the changed capacitance signal is then input to the control IC for signal conversion,. Then converting the changed capacitance into the amount of change in the electrical signal. Lastly, by using a certain algorithm to detect and judge the degree of this chang we can determine when the amount of change exceeds a certain threshold that means the liquid level to reach the induction point. |
| A | For any questions, advice or cool ideas to share, please visit the DFRobot Forum. |
More Documents
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Schematic
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SVG files
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