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Tuning fork online density/concentration meter
音叉在线密度/浓度计

Applicable mediumLiquid fluid, slurry, suspension, high viscosity fluid, etc.

Not applicable medium Solid medium

0411-

84409900 / 84403377

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Product introduction


Tuning fork density and concentration meter


Tuning fork density meters are used to measure the density of liquid media in tanks and pipes. Density measurement is an important process control in the production process of a product. The tuning fork density meter can be used as an indicator of other quality control parameters such as solid content or concentration value. It can meet the various measurement requirements of users for density, concentration and solid content.


Working principle


  Tuning fork series online density and concentration meters use acoustic frequency signal sources to excite the metal tuning fork and make the tuning fork vibrate freely at the center frequency. This frequency has a corresponding relationship with the density of the contact liquid. Therefore, the frequency can be analyzed Measure the density of the liquid, and then perform temperature compensation to eliminate the temperature drift of the system; and the concentration can be calculated according to the relationship between the density and concentration of the corresponding liquid at a temperature of 20 ℃.

Liquid Density Meter

Particle restriction

Gas

Maximum liquid viscosity

Particle diameter

Suspended particles%


<10Micron 

<=40



10~50 Micron

<=20

Generally not used

2000CP



advantage


• Fully integrated "plug and play, maintenance-free" density measurement

• Continuous measurement

• No moving parts, low maintenance

• Long rod type is suitable for use in open tanks and sealed tanks

• The length of the long pole can be up to 2 meters

• Provide materials including 316L, Kazakhstan C, zirconium, etc.

• Allow a small amount of solids and bubbles

• Density, standard density or special calculated value (solid percentage, concentration, specific gravity, etc.), 4-20 mA output

• Not easily affected by temperature and pressure

• In-line density meter is suitable for working under high pipeline pressure

• Provide temperature sensor


Typical application


Petroleum retail channel

Combined volume flow meter for mass flow

Winemaking concentration detection acid/alkali concentration control evaporator control

End-point detection solvent separation in batch reactions

 

Typical industry


 Petroleum and petrochemical industry       -Interface inspection-multi-oil pipeline

  Wine industry                                           -Quality control-continuous online

  Organic and inorganic chemical materials 

Leak detection – underground storage tanks suitable for salt water

  Pharmaceutical Industry                            --Alcohol blending

  Mineral processing (clay, carbonate, silicate)  --Chinese medicine concentrate

  Battery industry                                         -density of lithium hydroxide, electrolyte, sulfuric acid solution


Precautions


Due to the needs of the technological process, the tuning fork density meter is often installed on the site with relatively harsh working conditions. In order to minimize the harshness of the working conditions of the density sensor, pay attention to the following:


★The tuning fork density meter should be installed as far as possible where the temperature gradient and temperature change are small, and there is no impact or vibration.

★ The measured medium is not allowed to freeze, otherwise the sensing element will be damaged and the tuning fork density meter will be damaged.

★ Prevent contact with corrosive or overheated measured medium.

★ Prevent the scum from depositing in the tank.

★ It should be handled gently to prevent damage to the tuning fork density meter.

★ Do not drop the instrument directly.

★ The instrument is forbidden to work above the rated pressure.

★ The pressure test is forbidden to exceed the specified test pressure.

★ Note It is forbidden to weld pipes when installing the tuning fork density meter.



       


Technical parameters


Density performance
Precision±0.003 g/cc±3.0 kg/m³
The scope of work0 ~1.8 g/cc0~1800 kg/m³
Repeatability±0.001 g/cc±1 kg/m³
Process temperature influence (corrected)±0.0005 g/cc±0.5 kg/m³
Process pressure influence (corrected)can be ignored
(1) The above accuracy is applicable to the calibration range of 0.6~1.5 g/cc (600-1500 kg/m³).
(2) The viscosity of the liquid can reach up to 2000CP.
(3) Temperature influence refers to the maximum measurement deviation caused by the temperature of the process fluid deviating from the factory calibration temperature.
(4) Pressure influence is defined as the change in sensor flow and density sensitivity caused by the deviation of the process pressure from the calibration pressure.
TemperatureSpecification
Process temperature–20 °C~+100 °C
Ambient temperature–20 °C ~+85 °C
Temperature Coefficient0. 1kg/m³/℃(After correction)
Built-in temperature sensorPT100
Structural materials
Wetted partsSS316L、H C、Ti、zirconium
Fork polishingStandard, electropolished
shellIP65, Aluminum alloy
Process connection

Flange
Process connection typeClamp

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