SPX530 optical online concentration meter adopts the diffusion law of the spectrum in the liquid. It is sampled by a high-resolution spectrum sensor, analyzed and processed by the software to obtain the regularity of the concentration, and then through temperature compensation, it can measure various liquids or The concentration of the liquid mixture.
Where the optical online concentration meter used for ?
Optical online concentration meter usually measure the liquid must have a certain degree of transparency; in the petrochemical industry, it can be widely used in the detection of petroleum, oil refining, and oil blending; in the food industry, it can be used in production sites such as grape juice, tomato juice, fructose syrup, vegetable oil and soft drink processing; dairy industry; papermaking Industry; black pulp, green pulp, white pulp, alkali solution measurement; wine alcohol content; chemical industry urea, detergent, ethylene glycol, acid and alkali and polymer density measurement. It can also be used in mining brine, potash, lubricating oil, biopharmaceutical and other industries. It is suitable for pipe installation or installation at the container wall.
ONLINE DENSITOMETER MEASUREMENT PRINCIPLE
Optical online concentration meter adopts the diffusion law of the spectrum in the liquid. It is sampled by a high-resolution spectrum sensor, analyzed and processed by the software to obtain the regularity of the concentration, and then through temperature compensation, it can measure various liquids or The concentration of the liquid mixture.
What are the advantages and disadvantages of optical online concentration meter?
*Fully-integrated “plug and play, maintenance-free” digital measurement for monitoring and control
*Passed explosion-proof certification
*Suitable for installation in tanks and pipes
*Continuous measurement
*Suitable for a variety of acids, bases, organic solutions
* No moving parts, less maintenance
*A small amount of solids and air bubbles are allowed
*Provide materials including 316L, PTFE, etc.
*Not easily affected by temperature and flow rate
*Concentration 4-20 mA output,
*Provide temperature sensor
OPTICAL ONLINE DENSITOMETER APPLICATION
1.Typical applications of laser densitometers
*Ammonia concentration
*Brix sugar refining (sugar concentration)
*Specific gravity of wort (brewing)
*Serum
*Acid/Alkali Concentration Control
*Solvent separation
2.Typical industries for laser densitometer applications
*Denitrification industry – measurement of ammonia concentration (0 * 30%)
*Wine Industry – Alcohol Blending (0~60%)
*Organic and inorganic chemical materials – acid/base concentration control
*Pharmaceutical industry – traditional Chinese medicine concentrate
*Mineral processing (clay, carbonate, silicate)
*Battery industry-electrolyte, sulfuric acid solution density
3.Guide for liquid and material compatibility of densitometers
How to install an optical online densitometer?
In the probe part of SPX530 optical online densitometer, the boundary effect of the pipe wall or container wall on the fluid plus the viscosity effect of the measurement medium itself, these effects will affect the fluid.
The measurement calibration of the sensor has a certain influence. In order to overcome these, for different environments, we summarize and set the installation method and pipe diameter to facilitate the selection under the same conditions. A minimum flow rate of 1.5 m/sec (5 ft/sec) is recommended.
Optical online densitometer precautions
Due to the needs of the technological process, the SPX530 optical online densitometer is often installed in sites with harsh working conditions. In order to minimize the harshness of the working conditions of the concentration sensor, pay attention to the following:
*The optical online densitometer should be installed in a place with little vibration as much as possible.
*The measured medium is not allowed to freeze, otherwise the sensor element will be damaged and the concentration meter will be damaged.
*To prevent dregs from depositing at the probe.
*It should be handled with care to prevent damage to the densitometer.
*It is forbidden to drop the instrument directly.
*It is forbidden to use 316 material online concentration meter to measure strong corrosive liquid.
*It is forbidden for the instrument to work above the rated pressure.
*Forbid the pressure test to exceed the specified test pressure.
*Note that the instrument is suitable for all explosion-proof occasions.
*Notice It is forbidden to weld the pipeline when the online concentration meter is installed.
How does optical online concentration meter monitors concentration in ammonia water/urea out-of-stock and liquid ammonia ratio ammonia water process ?
Domestic chemical companies mainly use sampling method or density measurement method to measure ammonia concentration. The sampling method has a lag in process data, and factors such as sampling environment, temperature change, manual operation, and the surrounding environment of the instrument all affect the accuracy of the test data. It cannot be adjusted in time with the change of process conditions, and stable product quality cannot be guaranteed. The density measurement method, because of its low precision, causes large errors, which can easily lead to measurement errors.
The SPX530 optical online densitometer developed by our company adopts the measurement principle of critical angle total reflection. The concentration value is calculated according to the different refractive index of the medium with different concentration. And automatic temperature compensation, high precision, good stability, easy installation and use. It can be used for online control of industrial processes. The online concentration meter generates corresponding signals according to the relationship between concentration and refractive index, and performs remote calibration and monitoring through digital communication. SPX530 optical online concentration meter is used in ammonia production, denitrification ammonia water/urea solution concentration measurement, ammonia synthesis and other processes. The accuracy and stability are much higher than the online concentration meters in the same industry.
