Capacitive water level sensor
Capacitive water level sensor is a high-precision product developed by our company specifically for wide range measurement. This series of products uses the principle of intelligent capacitors and the new generation of microcomputer processing technology to convert sensor signals into digital signals, and perform temperature, linear compensation, and series function settings through MCU.
Description
Shandong Aipuxin Automation Instrument Co., Ltd. is one of leading manufacturers and suppliers of capacitive water level sensor in China, also supports customized service with low price. Please rest assured to wholesale cheap capacitive water level sensor in stock here from our factory.
Technical Parameter
Product Introduction:
Capacitive water level sensor is a high-precision product developed by our company specifically for large-scale measurement. This series of products adopts the principle of intelligent capacitors and a new generation of microcomputer processing technology to convert sensor signals into digital signals, and performs temperature, linear compensation, and series function settings through the MCU to make PTFE flexible cables. The capacitive level meter probe uses soft polyethylene Teflon-sheathed high-temperature-resistant coaxial cable is used as the sensing line. This liquid level gauge is suitable for measuring the liquid level of various sewage pools, high temperature groundwater, acid and alkali solutions and other media. It has the advantages of small size, easy installation, high temperature and high pressure resistance, corrosion resistance, wide measurement range and high cost performance.
Working principle
Capacitive water level sensor, also known as radio frequency capacitive liquid level meter
working principle:
The operating principle is based on radio frequency (RF) capacitor technology. Apply radio frequency to the probe and determine by continuous analysis
The impact of the surrounding environment. Since all materials have a dielectric constant and a different conductivity than air, when the sensor probe comes into contact with the material, the total impedance reflected by the small capacitance shift changes. Since the energized probe and the container wall form the two plates of a capacitor, the insulator of the probe and the surrounding air become the dielectric material. When air (dielectric constant 1.0) is replaced by any other material (dielectric constant >1), the change in capacitance value causes a change in impedance. This influence is caused by
After the circuit is measured, it is compared to a reference established by the sensitivity device settings (circuit).
The capacitive water level sensor is suitable for measuring the liquid level (material level) of conductive and non-conductive liquids (solids) under pressure in pressure vessels. It adopts two-wire power supply, outputs 4-20mA, superimposes HART digital signal, and displays liquid level locally at the same time. It can convert various changes in liquid level parameters into standard current signals, which can be remotely transmitted to the operating room for centralized display, alarm or automatic control through secondary instruments or computer devices.
This liquid level gauge can be used for continuous detection of liquid level, material level or material level under special conditions such as high pressure, high temperature, strong corrosion, easy crystallization, anti-clogging, anti-freeze, and solid powder, particles and other materials. It can be widely used for detection and control in various industrial processes.
Product Features
4-20mA/RS-485 multiple signal outputs to facilitate different system configurations.
The capacitive water level sensor is suitable for liquid level measurement in high-temperature and high-pressure vessels. The measured value is not affected by the temperature, specific gravity, shape and pressure of the liquid being measured. It also has complete over-current, over-voltage functions and power supply polarity protection.
Anti-adhesion
Advanced anti-adhesion circuit design eliminates material adhesion and creates false error signals
Adaptable
It can detect solid and liquid materials under high temperature, high pressure, large dust, and high viscosity, and is not affected by the dielectric constant of the measured medium.
One-click calibration
Due to the use of digital circuits, users can complete the calibration in one go in the short position state.
Simple installation and debugging
Fully sealed integrated installation structure, no mechanical moving parts, high reliability, and basically maintenance-free. Once installed, no need for multiple commissioning.
Product Details
Product Application
Capacitive water level sensors are widely used in petroleum, chemical industry, metallurgy, electric power, papermaking, pharmaceutical and other fields. Chemical plant: detecting polyester, spandex, acid, alkali, ETC; Environmental protection: sewage liquid level detection; Boiler plant: detecting the liquid level of the medium in the pressure vessel; Hydraulic machinery: lubricating oil level detection; Grain department: edible oil grade detection; Oil field : Detect the liquid level of finished oil.
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