深圳市星科创科技有限公司
Shenzhen XingKeChuang Technology Co., Ltd.
Phone: 86-0755-33523599 FAX: 86-0755-33515410 URL: http://www.sz-xkc.com
Address:
11th Floor, No. 48, Xinyu Road, Xinqiao Community, Xinqiao Street, Baoan District, Shenzhen
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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 the container wall
thickness and realizes the true non-contact of the liquid level in the closed container. Contact detection. The liquid level
sensor (probe) is installed on the upper and lower sides of the outer wall of the container to be tested (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 level of various 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 container, and can be widely used.
XKC-Y28A-NO/NC/RS485 products are specially designed for non-metallic pipes (pipe outer diameter D≤10MM),
respectively, relay normally open output and relay normally closed outputand RS485 interface output.
2nd.Product Features
1. XKC-Y28A-NO/NC/RS485 sensor, suitable for non-metallic pipes (pipe outer diameter D≤10MM) without direct
contact with liquid, will not be corroded by strong acids and alkalis and other corrosive liquids, and will not be affected
by scale or other debris Influence, it can be completed to detect whether there is liquid inside the container or pipeline.
2. Intelligent liquid level reference adjustment and liquid level memory function, liquid level status display mode, can
realize multi-point series connection.
3. The detection is accurate and stable, and the boiling water level can be detected.
4. Pure electronic circuit structure, non-mechanical working mode, stable performance and durability.
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 5V, 12V, 24V
power adapters on the market.
6. Strong compatibility, penetrating various non-metallic container pipes, such as plastic, glass, ceramic and other
containers, suitable for liquid level detection of various curved, arc, cylindrical containers or pipes.
7. The voltage can be selected (5V, 12V, 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 whether there is liquid.
When there is no liquid close to the sensor, the sensor has a certain static capacitance to the ground due to the distributed
capacitance on the sensor. When the liquid level slowly rises and approaches the sensor, the parasitic capacitance of the
liquid will be coupled to this static capacitance, making the capacitance value of the sensor larger, and the changed
capacitance signal is then input to the control IC for signal conversion. The capacitance is converted into a change of a
certain electrical signal, and then a certain algorithm is used to detect and judge the degree of this change. When the
change exceeds a certain threshold, it is considered that the liquid level has reached the sensing point.
