1st. Overview
The intelligent non-contact liquid level sensor (hereinafter referred to as the liquid level sensor) adopts advanced signal processing technology and high-speed signal processing chip, which breaks through the influence of container wall thickness and realizes a true non-contact type of liquid level height in a closed container Detection. The liquid level sensor (probe) is installed on the upper and lower sides of the outer wall of the container to be measured (the high and low levels of the liquid level). The non-metallic container does not need to be opened, and the installation is simple and does not affect production. It can detect the liquid level of various liquid toxic substances, strong acids, strong alkalis and various liquids in high-pressure airtight containers. The liquid level sensor has no special requirements for the material of the liquid medium and non-metallic container, and can be widely used. XKC-Y25-XXX series products are specially developed for non-metallic container liquid level detection. This series of liquid level sensors are divided into four signal output control methods, namely high and low level output interface, NPN output interface, PNP output interface, RS485 Output interface; the four signal output modes correspond to the following four models:
2nd.Product Features
1. XKC-Y25-XXX non-contact liquid level sensor is suitable for non-metallic containers. The product detects the liquid through the detection signal through the non-metallic container and the outer wall of the pipeline, without direct contact with the liquid, and will not be subject to strong acid, Corrosion damage caused by corrosive liquids such as strong alkalis is not affected by scale or other debris, and it can be completed to detect whether there is liquid inside the container or pipeline. 2. It can support high and low level output, NPN, PNP signal output (please refer to the manufacturer's instructions when selecting the model). 3. The detection liquid level is accurate and stable, and cold, hot and boiling liquids can be detected. 4. Pure electronic circuit structure, non-mechanical working mode, stable performance and long lasting service life. 5. High stability, high sensitivity, strong anti-interference ability, free from external electromagnetic interference, special treatment for power frequency interference and common mode interference, to be compatible with all 5-24V power adapters on the market. 6. It has a wide range of application and strong sensing capability. It can penetrate and detect the liquid level in various non-metallic containers, such as plastic, glass, ceramics and other containers. The sensing distance (container wall thickness) can reach 20mm; liquid, powder, Particles can be detected. 7. Open collector output mode, wide voltage range (5-24V), suitable for connecting various circuits and product applications.
3rd.Product Applications The intelligent non-contact liquid level sensor uses the inductive capacitance of water to detect the presence of liquid. When there is no liquid close to the sensor, the sensor has a certain static capacitance to the ground due to the presence of distributed capacitance on the sensor. When the liquid level is slow When the sensor is slowly raised, the parasitic capacitance of the liquid will be coupled to the static capacitance of the sensor, making the capacitance value of the sensor larger. The changed capacitance signal is then input to the control IC for signal conversion, and the changed capacitance is converted into a circuit signal The MCU calculates and judges the degree of the change in the analog quantity. When the change exceeds a certain threshold, it is considered that the liquid level has reached the sensing point.
