Online measurement ammonia concentration detector refractometer liquid density meter

Online measurement ammonia concentration detector refractometer liquid density meter

Ammonia water, also known as ammonia water, is mainly composed of NH3 · H2O. It is an aqueous solution of ammonia, colorless, transparent, and has a pungent odor. Melting point -77 ℃, boiling point 36 ℃, density 0.91g/cm ^ 3. Easy to dissolve in water and ethanol. Easy to evaporate, with partial alkaline permeability, produced by introducing ammonia gas into water. Toxic, irritating and corrosive to eyes, nose, and skin, can cause suffocation, with an allowable concentration of 30mg/m ^ 3 in the air. Mainly used as fertilizer. Industrial ammonia water is an aqueous solution containing 25% to 28% ammonia. Only a small portion of ammonia molecules in ammonia water react with water to form ammonium ions and hydroxide ions, namely ammonium hydroxide, which is a weak base that only exists in ammonia water. The freezing point of ammonia water is related to the concentration of ammonia water, and the commonly used (wt) 20% concentration freezing point is about -35 ℃. Heat is generated through neutralization reaction with acid. There is a risk of combustion and explosion. The specific heat capacity is 4.3 × 10 ^ 3J/kg ·℃ (10% ammonia solution).

The online concentration detector for ammonia water uses the principle of refraction to measure the refractive index of the solution, which corresponds to the concentration of the ammonia water solution. Obtain the actual concentration of the solution through conversion. This measurement principle has good stability and high accuracy, and is suitable for pipeline installation or container wall installation, as well as other installation methods; The instrument has a compact structure and is easy to operate; The online ammonia concentration detector can monitor ammonia concentration in real-time 24 hours a day; It has factory linear calibration and automatic temperature compensation function, as well as automatic cleaning function.

Online measurement ammonia concentration detector refractometer liquid density meter

1、 Application industry: Installed on material barrels, pipelines, storage tanks, and liquid tanks through threads, flanges, and clamps, online monitoring of various chemical liquids such as DMAC, NMP, cutting fluid, emulsion, ethylene glycol, urea, ammonia water, alcohol cleaning solution, etc., including concentration%, refractive index, temperature, and other parameters;

2、 Functional features:
1. According to the principle of optical refraction, the concentration%, refractive index, temperature and other parameters of various chemical liquids such as DMAC, NMP, cutting fluid, emulsion, ethylene glycol, urea, ammonia water, and alcohol cleaning solution can be measured online for a long time. After installation, calibration is not required;
2. The multi-point curve concentration measurement algorithm using * is used to test the concentration of various chemical liquids. Compared with the commonly used two-point linear concentration measurement algorithm on the market, the multi-point curve concentration measurement algorithm has higher accuracy;
3. The instrument has a built-in temperature compensation function, which can measure the concentration of liquids at different temperatures, and can also select common liquids to measure concentration without setting any parameters;
4. The instrument comes with multiple switch signal outputs, such as concentration upper and lower limits, liquid addition and inlet pump signal contacts. Users do not need to use PLC programming for automation control. Our instrument can replace the work of PLC, and each part is modular, making maintenance simple. Damaged parts can be directly replaced without affecting the normal operation of other parts;
5. Functions can be customized according to the specific needs of users.

Technical Specifications:
1. Measurement range: 0.0~80.0% (Brix)
2. Measurement accuracy and error: 0.1%, ± 0.2%
3. Measurement parameters: Brix concentration, refractive index
4. Liquid temperature range: 0-60 ℃
5. Pressure resistance: 1MPa
6. Protection level of sensor measurement part: IP67
7. Sensor material: 316L stainless steel
8. Default lead length of sensor: 2 meters
9. Display Controller: Industrial Control Computer
10. Upper and lower limit alarm control: multiple control points
11. Communication with PLC: possible
12. Signal output: default 24V switch quantity, optional 4-20mA, Modbus RTU and other outputs
Features: This sensor uses the principle of optical refraction to measure liquid concentration, which is not affected by liquid flow rate, stirring, or pressure. It is more suitable for online measurement in pipelines and sealed liquid drums

Caustic soda concentration online detector refractometerReal time monitoring and control of the entire process helps ensure the consistency and stability of product quality in the production process, changing the extensive production management method that relies on manual detection, manual recording, and manual control. This ensures that the production process strictly follows the process plan, thereby ensuring that product quality reaches a unified level, preventing excessive use of production materials and energy, and reducing waste generation. By using online instruments in conjunction with automated production equipment, enterprises can improve production efficiency, reduce manual automation levels, lower labor and production costs, and effectively ensure the uniformity and stability of product quality. Online concentration meters have been widely used in industries such as food, beverage, chemical, and manufacturing.