Your Professional Capacitive Level Transmitter Supplier
Xian Baochen Information Technology Co., Ltd. is located in high-tech Zone, Xi 'an, Shaanxi Province, China, is a focus on sensors, transmitters, inverters, power semiconductor devices and supporting instruments R & D, manufacturing, sales and service enterprises. The company invests in research and development team, cooperates with excellent universities, integrates industry resources, and provides the best quality solutions for domestic and foreign users. Enterprise mission: to meet user needs and create value for customers.
Why choose us
Sales Market
We Products are exported to Europe, America, Southeast Asia, West Asia, Central Asia and other countries around the world. Our products are well received in these markets.
Our Service
Able to quickly respond to customer needs, to provide personalized customization, timely delivery, professional technical support and perfect after-sales service.
Strict Quality Control System
Able to efficiently produce large quantities of products, advanced production processes and stable supply chains, the implementation of strict quality control system. Constantly introduce new technologies and new materials to improve product performance and production efficiency.
Wide Range of Applications
Through the EU CE, RoHs testing, products are widely used in petrochemical, water conservancy and hydrology, machinery and equipment, automobile manufacturing, industrial process control, weighing measurement, people's livelihood applications and other fields.
Capacitive Level Transmitter
The Capacitive Level Transmitter is a contact-type sensor used to measure the level of liquids, powders, or granular materials in a tank or vessel. It works by detecting changes in capacitance caused by the presence or absence of material around the sensing probe. This technology offers high accuracy and is ideal for continuous level measurement in both conductive and non-conductive media. With its rugged design and resistance to temperature and pressure variations, it ensures reliable performance in harsh industrial environments.
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Accuracy |
±0 .5% |
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Working Pressure |
1 . 6Mpa or 2.5Mpa |
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Working Temperature |
-80~+450℃ |
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Ambient Temperature |
-40~+85℃ |
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Relative Temperature |
<85℃ |
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Input Voltage |
Rated voltage is DC24V |
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Output Signal |
Two-wire 4~20mA(standard), other interfaces can be customized. |

Capacitive Type Level Transmitter uses capacitive sensing technology to measure the level of liquids and bulk solids accurately.
Transmitter provides reliable measurement even in harsh industrial environments and in the presence of conductive or dielectric materials.
The device is easy to install and requires no calibration, saving you time and effort.
Its compact design allows it to fit in tight spaces and makes it an excellent choice for industrial applications with limited space.
The transmitter offers a variety of output options, making it compatible with a range of control systems.
It is suitable for numerous industrial applications, from corrosive liquids to abrasive solids and high temperatures.
Advantages of Capacitive Level Transmitter
Simplified Wiring
Reduces connection complexity and installation time.
Enhanced Signal Integrity
Ensures robust signal transmission over long distances.
Improved Safety
Minimizes disturbances or electrical current fluctuations in high-density applications.
Cost-Effective
Lower installation and maintenance costs compared to other models.
Applications of Capacitive Level Transmitter
Oil & Gas
Accurate monitoring of fuel, lubricants, and other critical fluids.
01
Chemical Processing
Reliable level measurement in aggressive chemical environments.
02
Food & Beverage
Ensures consistent ingredient quality and process control.
03
Water & Wastewater Treatment
Electronic + technology solutions,complete product architecture system
04
Pharmaceutical Manufacturing
Delivers exact measurements for critical production processes.
05
Working Principle of Capacitive Level Transmitter
The principle of capacitive level measurement is based on change of capacitance. An insulated electrode acts as one plate of capacitor and the tank wall (or reference electrode in a non-metallic vessel) acts as the other plate. The capacitance depends on the fluid level. An empty tank has a lower capacitance while a filled tank has a higher capacitance.
A simple capacitor consists of two electrode plate separated by a small thickness of an insulator such as solid, liquid, gas, or vacuum. This insulator is also called as dielectric.
The transmitter is installed vertically from the top.
Select a suitable location for the probe on the tank where turbulence is minimum.
Probe should be located such that the direct flow of material on the probe is avoided.
Ensure that the process connection of the level transmitter matches with those on the tank.
Sensing electrode should be parallel to the reference electrode or tank wall.
In case of outdoor installation, an Electronic instrument must be safeguarded from sunlight by jacketing it with sheets.
During the installation of the flexible probe, insert it carefully inside the tank as rough handling may lead to damage to the probe and its insulation.

Calibration of capacitance type level transmitter
Isolate the level transmitter from the process tank.
Bleed out the trapped pressure present inside and check the zero reading in the transmitter.
Connect the multimeter to the level transmitter.
Turn on the 24 VDC power supply and observe the condition of the LED for ON and OFF.
Verify zero reading in the level transmitter, if not release the pressure.
Connect the HART communicator along with the multimeter to the level transmitter.
Set the multimeter to mA by rotating the knob, and linking the probe to the appropriate socket for mA reading.
Fill the water used as process fluid to 0% level, and note down the readings.
Fill the same fluid (water) up to 25%, 50%, 75%, and 100% in both ascending and descending orders and note down the readings.
Adjust for zero and span error, if there is any error.
For ZERO calibration drain the fluid to 0%, and check the multimeter reading if it is not 0, then go to the sensor trim option followed by zero trim in the HART communicator to trim the sensor to 4mA automatically.
For SPAN calibration fill the fluid to 100%, just wait for some period, and go to the sensor trim option followed by span trim in the HART communicator to trim the sensor to 20mA automatically.
After performing ZERO & SPAN trimming, now verify the readings for 0%, 25%, 50%, 75%, and 100%.
FAQ
As one of the leading capacitive level transmitter manufacturers and suppliers in China, we warmly welcome you to wholesale cheap capacitive level transmitter in stock here from our factory. All customized products are with high quality and competitive price.
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