Coriolis Density Meter

The Coriolis Density Meter is based on the Coriolis effect, using the frequency change of the vibrating tube to monitor density. This method is accurate and reliable, and has a wide measurement range suitable for various fluid densities. The Coriolis density meter has very low pressure loss, giving it an inherent advantage in measuring the density of viscous fluids such as slurries.

Benefits

  • Continuous density measurement.
  • Multivariable measurement: simultaneously measure mass flow, density, temperature and viscosity
  • The measurement principle is completely unaffected by the physical properties and flow field of the fluid
  • No moving parts, low maintenance.
  • Materials include 316L, PTFE, etc. available.
  • Density, standard density or special calculations (% solids, °API, specific gravity, etc.), 4–20 mA output.
  • Temperature sensor provided.
  • It has low installation requirements and can be installed vertically or horizontally on the measuring pipe.
  • Precision and high-quality stainless steel can withstand the wear and tear caused by the high-speed passage of various materials and has a long service life.
  • The measurement accuracy is high, and the density measurement accuracy can reach ±0.001g/cc.
  • The converter uses a multi-variable digital processing system. Strengthen signal filtering, greatly improve the sensitivity and accuracy of signal measurement, speed up the system response time, and make the measurement more reliable.

Technical Parameters

Accuracy±0.001g/cc±1.0kg/m3
Measuring range0~3g/cc0~3000kg/m30~187.4 lb/ft3
Repeatability±0.001g/c±0.1kg/m3±0.006lb/ft3
Process temperature effect (corrected)±0.001%g/cc)±0.1kg/m3(per °C)
Process pressure effects (corrected)negligible
(1) The above accuracy applies to the calibration range 0.6 – 1.25g/cc (600 – 1250 kg/m3).
(2) The viscosity of the liquid can reach up to 2000cP.
(3) Temperature effect refers to the maximum measurement deviation caused by the process fluid temperature deviating from the factory calibration temperature.
(4) Pressure effect is defined as: the change in sensor flow and density sensitivity caused by the deviation of process pressure from the calibrated pressure.
process temperature-10℃~+60℃
ambient temperature-10℃~+85℃
temperature coefficient0.1kg/m3/℃ (after correction)
Built-in temperature sensorPT100
Wetted partsStainless steel, 316L, PTFE
ShellIP65, aluminum alloy
Maximum working pressure10MPa
Test pressureTested at 1.5 times maximum working pressure
Tested at 1.5 times the maximum working pressure
Process connection typeflange
Tri-Clover (TC) Clamp 
Thread
Explosion-proof certificationExd IIB T6 Gb
Power requirements24VDC,50mA
outputFour-wire system, 4-20mA
Viscosity requirements0-20000cP

Liquid and Material Compatibility

NameNameMolecular formulaConcentration(%)316LHastelloyTitanium AlloyZirconiumPTFE
AcidHydrochloric acid (without hydrofluoric acid)HCl0-40××
sulfuric acidH2SO40-50
H2SO450-75××
H2SO475-98
Nitric acidNHO30-100
Phosphoric acidH3PO40-98××××
Basesodium hydroxideNaOH0-50
potassium hydroxideKOH0-50
calcium hydroxideCa(OH)20-50
Saltsodium chlorideNaCl0-50×
Ammonium chlorideNH4Cl0-50×
Ammonium sulfate(NH4)2S040-50×
OthersUrea(NH2)2CO0-100
sodium hypochloriteNaOCl0-16××
hydrogen peroxideH2O20-90
☆Recommended ○Use within specific concentration and temperature limits × Not used

Coriolis Density Meter Working Principle

The Coriolis density meter operates on the principle of the Coriolis force acting on a moving fluid, where the force is related to the fluid’s density, thus allowing the measurement of the fluid’s density.

A Coriolis density meter contains one or more measuring tubes, forming a vibration system. As the fluid flows within the measuring tube, its inertia generates a force acting on the tube wall. The fluid density can be determined based on the vibration frequency of the measuring tube. A temperature sensor outside the measuring tube measures the tube’s temperature for temperature compensation.

This principle offers high stability, high precision, and good long-term stability, eliminating drift caused by sensors.

Media Limitation:Contains gasMaximum liquid viscosity
Conventional LiquidsAcid and alkaline solutionsGenerally not used3000CP
316LPolytetrafluoroethylene

Coriolis Density Meter Applications

Coriolis density meters are suitable for measuring the density of low-flow-rate media such as liquids, slurries, and suspensions.

  1. Interface detection in multi-product pipelines
  2. Brix sugar refining (sugar concentration)
  3. Wort specific gravity (brewing)
  4. Slurries
  5. Acid/alkali concentration control
  6. Product mixing
  7. Endpoint detection in batch reactions
  8. Solvent separation
Petroleum and petrochemical industriesInterface detection; multi-oil pipelines
Brewing industryQuality control; continuous online monitoring
Organic and inorganic chemical materialsLeak detection; underground storage tanks using brine
Pharmaceutical industryTraditional Chinese medicine concentration, alcohol recovery
Battery industryLithium hydroxide, electrolyte, and sulfuric acid solution concentration

Cases Share: Electrolyte Density Measurement in the Battery Industry

Lead-acid battery electrolyte is prepared from distilled water (or pure water) and concentrated sulfuric acid. The standard electrolyte density is 1.280 ± 0.005 g/cm³ (25℃).

If the electrolyte density is too low, the lead-acid battery will have insufficient power.

During production, the real-time electrolyte density needs to be monitored online. A Coriolis online density meter is used for measurement, with an error within ±0.005 g/cm³. A sealed structure is employed to reduce the corrosion of electronic components by acid mist and extend equipment life.

Electrolyte Density Measurement in the Battery Industry

More Density Measurement Devices

The Coriolis online density meter/concentration meter uses the principle of calculating the density of a moving liquid based on the special law of the Coriolis force, and then converts it into a corresponding concentration value. It is suitable for measuring the density and concentration of media such as alcohol, gasoline, and diesel.

Sino-Inst supports customized parameters for its Coriolis online density meter/concentration meter, including pressure and installation method. Please feel free to contact us for density measurement solutions!

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    Coriolis Density Meter - Higher Accuracy & Stable |Sino-Inst

    The Coriolis Density Meter is based on the Coriolis effect, using the frequency change of the vibrating tube to monitor density. This method is accurate and reliable, and has a wide measurement range suitable for various fluid densities. The Coriolis density meter has very low pressure loss, giving it an inherent advantage in measuring the density of viscous fluids such as slurries.

    Product SKU: Coriolis Density Meter

    Product Brand: Sino-Inst

    Product In-Stock: InStock

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