Online Liquid Density Meter

Short Description:

The online liquid density meter is a dedicated inline density measuring instrument for pipelines, reactors and storage tanks in process control. Real-time density data of a continuous stream measured by the inline liquid density meter enables automated process adjustments, being crucial for ensuring unwavering product consistency and dramatically reducing reject rates and material waste. The density meter for liquids is engineered for seamless integration with existing PLC, DCS, and SCADA systems.

Density Accuracy: ±0.0005 g/cm³; ±0.005 g/cm³; ±0.001 g/cm³

Concentration Accuracy: 5‰, 1‰, 0.5‰

Temperature Accuracy: 0.01℃

Velocity Accuracy: 0.01 m/s

Medium Temperature: -20 ~ +80 ℃; -40 ~ +120 ℃

Ambient Temperature: -40 ~ 80 ℃

Relative Humidity: 0~98%

Explosive-Proof: ExdllCTGb

Waterproof: IP65

Signal Mode: Four wire / Two wire

Output Signal: 4~20mA

Communication Interface: Modbus (RS485)

Operation Pressure: ≤2.0 Mpa

Other Output: Profibus-DP, Bluetooth 5.3, Hart

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Product Detail

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Working Principle

The liquid density meter utilizes ultrasonic sensing technology to measure the transmission time of the sound wave from the signal source to the signal receiver. The direct correlation between speed of sound waves and liquid density helps in calculation of density reading. Waves travel slower in denser materials and faster in less dense ones. The density meter liquid is designed to address challenges in continuous density monitoring, serving as an inline density measurement instrument in data-driven process control. It enables manufacturers to shift from a reactive, crisis-management approach to a proactive model of continuous process optimization.

Product Features

● Adopts non-contact ultrasonic tech, enabling flow-uninterrupted operation;

● Robust waterproof/explosion-proof design, boosting safety grade;

● Simple mechanical structure, no moving parts;

● Supports multi-communication interfaces: RS485, Modbus, Profibus-DP, Bluetooth, Hart, etc.;

● High accuracy & reliability for consistent results under varying conditions;

● Rugged, fully encapsulated construction;

● High-performance tech suppresses errors even with high froth content;

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Product Advantages

● Extended operating temperature range, up to 200 °C;

● Withstands high process pressures (up to 500 bar, customizable);

● Intuitive digital interface, simplifying continuous density measurement;

● Enables long-term data acquisition and tracking;

● Outputs three parameters simultaneously: density, temperature and velocity;

Applications

Some production lines or industrial plants could benefit from the online liquid density meter:

● Petroleum refineries for density monitoring in crude oil distillation towers and fuel blending lines to ensure fuel grade compliance and stable combustion performance;

● Chemical plants for density detection in solvent recovery systems and chemical reaction tanks to guarantee reaction efficiency and meet process formula requirements;

● Beverage factories for density monitoring in fruit juice concentration lines and carbonated drink mixing tanks to keep product concentration stable and ensure taste consistency;

● Wastewater treatment plants for density measurement in sludge thickening tanks and chemical dosing systems to optimize treatment efficiency and meet emission standards;

● Battery manufacturing plants for density detection in electrolyte preparation tanks and filling lines to ensure battery performance and extend service life.

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Customization Options

I. Core Performance Customization

Measurement Accuracy and Range

Installation Method

Material of Wetted Parts

II. Environment and Safety Customization

Explosion – Proof Certification

Temperature and Pressure Certification

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About Lonnmeter

SHENZHEN LONNMETER GROUP is a global intelligent instrument industry technology company. The group is headquartered in Shenzhen, China's science and technology innovation center. After more than ten years of steady development, it has formed a collection of research and development, production, sales and service. A group company of measurement, intelligent control, environmental monitoring and other series of project products.

Service Philosophy：
Every little thing for customers is a big thing for LONNMETER!
Business Philosophy：
Help customers succeed!
Group Values：
Customer first, pursuit of perfection, embrace change, dedicated cooperation, hard work, happy life.
Group Mission：
Make measurement intelligence more accurate!
Group Vision：
In the next 3-10 years, LONNMETER will create a new generation of smart instruments leader in China! In the next 10-20 years, let more people in the world use LONNMETER products and become the new generation leader of global smart instruments!

LONNMETER GROUP has seven professional production bases, more than 71 professional and technical personnel, and more than 440 skilled workers. The product quality is high, and the company has won many awards. At present, the company has obtained 37 national research and development patents, and its products have passed 19 international certifications such as CE, FCC, FDA, and TUV. The technical team of SHENZHEN LONNMETER GROUP is the core strength of the company. With its strong technical strength, it has conducted in-depth research and development on new products and new technologies in the intelligent instrument industry. The team worked hard to keep up with industry trends and made major breakthroughs in new product development.