An online density meter (also known as an online density transmitter) is a device used for continuously measuring the concentration and density of liquids online, and can be directly used in industrial production processes. The density meter adopts advanced technology, including a capacitive differential pressure sensor and a pair of pressure relays connected to it and inserted into the production process. There is a temperature sensor between two pressure relays to compensate for temperature changes in the process liquid. The intelligent online density meter is a two-wire density transmitter mainly used for industrial process control. The online density meter generates corresponding 4-20mA signals based on the concentration and density, which can be remotely calibrated and monitored through digital communication as shown in Figure 1. It is mainly used for testing the density of urea, cleaning agents, ethylene glycol, industrial ammonia water, acid and alkali, and polymers in the chemical industry. It can also be applied to industries such as mining mud, salt water, potassium alkali, lubricating oil, desulfurization slurry, biopharmaceuticals, etc.

Intelligent online densitometer is a device used for continuous online measurement of liquid concentration and density, which can be directly used in industrial production processes. The intelligent online density meter is a two-wire density transmitter mainly used for industrial process control. The online density meter generates corresponding 4-20mA signals based on the concentration and density, which can be remotely calibrated and monitored through digital communication. Widely used for online continuous density detection of liquid media in industries such as pharmaceuticals, brewing, beverages, oil refining, food processing, and chemical production.

Working principle: The intelligent online density meter is essentially a differential pressure transmitter. Its working principle: The pressure generated by a liquid column at a certain height is proportional to the density of the liquid. Namely: P=ρ gh, where P represents the pressure generated by a liquid column at a certain height; ρ - the density of the liquid; G - Measurement of ground acceleration due to gravity; H - height of liquid level; Based on the pressure value measured by the pressure gauge, the density value of the measured liquid can be obtained under the condition that the ground acceleration and the height of the liquid column are known.

Intelligent online density meter (also known as online density transmitter) is a device used for continuous online measurement of liquid concentration and density, which can be directly used in industrial production processes. The density meter adopts advanced technology, including a high-precision differential pressure sensor and a pair of pressure relays connected to it or inserted into the production process. There is a temperature sensor between two pressure relays to compensate for temperature changes in the process liquid. The intelligent online density meter produced by Changyang Measurement and Control is a two-wire density transmitter, mainly used for industrial process control. The online density meter generates a corresponding 4-20mA signal based on the concentration and density, which can be remotely calibrated and monitored through digital communication.

Installation method: There are several installation methods for online density meters, including flow-through installation, bottom drain installation, and tank top installation. Flow-through installation involves adding a bypass pipe to the main pipeline, allowing the measured solution to flow through the measuring tank and then return to the storage tank lower than the measuring tank. It is suitable for online measurement of the density or concentration of solutions with good flowability. Bottom drain installation is actually another form of flow installation. The special design of the bottom drain measuring tank can avoid the precipitation of impurities in the measured solution. In addition, it can be equipped with a water flushing device, which can be fully flushed with water after each use. This installation form is suitable for slurry and mud. Measurement of density and concentration of coal water mixture.

Technical Specifications:

Form: Pipe type, plug-in type, side mounted type, L-shaped

Density measurement range: (0~1.5), (0~2.0), (0~3.0) g/cm '

Accuracy level: 0.2 level;

Resolution: 0.001g/cm

Working voltage: (18.5~45) VDC, commonly 24VDC (special customized 220VAC);

[Temperature range (-30~150) ° C, instrument (with LCD) ambient temperature: (-10~85) ° C, instrument (without LCD): (-30~85) ° C]

Environmental humidity: (5-90)% RH;

Display header: LCD/LED digital display, intelligent LCD display;

Output signal: (4 "20) mA optional digital signal, HART communication protocol;

Mechanical installation method: flange connection.

Differential pressure intelligent online density meter is an automated measuring instrument used for online density measurement of various liquids or liquid mixtures. Widely used in the petroleum industry for detecting oil, refining, blending, and oil-water interfaces; Used for testing the density of grape juice, tomato juice, fructose, sandalwood oil, and soft drinks in the food industry production site; Used in the paper industry for detecting the density of black pulp, green pulp, white pulp, and alkaline solutions; In the chemical industry, it is also used for detecting the density of cleaning agents, ethylene glycol, carbonic acid, urea, and polymers; It is also widely used in the pharmaceutical industry, dairy industry, mining industry, and so on.

For more product information, please consult our toll free hotline at +0086 400 880 6367