ST-L308 online tuning fork densitometer is used to measure the concentration of liquid media in tanks and pipelines. Concentration measurement is an important process control in product production technology, and tuning fork concentration meters can be used as indicators for other quality control parameters such as solid content or concentration values. It can meet various measurement requirements of users for density, concentration, and solid content.

Working principle of ST-L308 online tuning fork densitometer

The ST-L308 series online density/concentration meter uses an acoustic frequency signal source to excite a metal tuning fork and make it vibrate freely at the center frequency, which is related to the density of the liquid in contact. Therefore, by analyzing the frequency, the density of the liquid can be measured, and then temperature compensation can be carried out to eliminate the system's temperature drift; The concentration value at a temperature of 20 ℃ can be calculated based on the relationship between the density and concentration of the corresponding liquid.

Application Industry

Petrochemical industry: diesel, gasoline, ethylene, etc

Chemical industry: sulfuric acid, hydrochloric acid, nitric acid, chloroethane, ammonia water, methanol, ethanol, saline water, sodium hydroxide, frozen liquid, sodium carbonate, glycerol, hydrogen peroxide, etc

Pharmaceutical industry: pharmaceuticals, biological liquids, alcohol extraction, acetone, alcohol recovery, etc. Food and beverage industry: sugar water, fruit juice, brewing, cream, etc

Battery and electrolyte industry: sulfuric acid, lithium hydroxide, etc

Environmental protection industry: desulfurization (lime slurry, stone paste slurry), denitrification (ammonia water, urea), wastewater treatment (mvr acid, alkali, salt recovery), etc

Typical industries

Petroleum and petrochemical industries - Interface detection - Multi oil pipeline transportation

Chemical industry - Production of acid, alkali and salt - Quality control

Brewing Industry - Quality Control - Continuous Online Testing

Organic and Inorganic Chemical Materials - Leak Detection - Underground Storage Tanks Using Saltwater

Pharmaceutical industry - Chinese medicine concentration, alcohol recovery

Battery industry - lithium hydroxide, electrolyte, sulfuric acid solution concentration

Precautions for ST-L308 online tuning fork density meter

Due to the requirements of the production process, tuning fork concentration meters are often installed on sites with harsh working conditions. To minimize the severity of working conditions for density sensors, please note the following:

The tuning fork concentration meter should be installed as much as possible in places with small temperature gradients and changes, without impact and vibration.

The measured medium must not freeze, otherwise it will damage the sensing element and cause damage to the tuning fork concentration meter.

★ Prevent contact with corrosive or overheated test media.

★ To prevent sediment from settling inside the tank.

★ Handle with care to prevent damaging the tuning fork concentration meter.

★ It is prohibited to directly drop the instrument.

★ It is prohibited to measure highly corrosive liquids (special corrosive media require special customization for contact materials).

★ It is prohibited for the instrument to operate above its rated pressure.

★ It is prohibited to exceed the paper test pressure during pressure testing.

★ Note that the instrument is suitable for all explosion-proof applications.

★ It is prohibited to weld pipes during the installation of tuning fork concentration meters.

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