VG Instruments (SEA) Sdn Bhd
12A, Jalan Dagang SD2/1G,
Bandar Sri Damansara,
Kepong, 52200
Kuala Lumpur, Malaysia.
+603-6276 8363
+603-6276 9363

Vega Density

Measuring techniques for density measurement

The proportion of solid matter in a liquid is determined with the help of density measurement.
Typical applications in the process industry are the measurement of acid and lye concentrations, the mixture density of abrasive or sticky liquids and the solid matter content of sludges and slurries.
 
VEGA uses two different physical measuring principles for density measurement
  • Differential pressure
  • Radiometric


VEGADIF: Density measurement of using differential pressure

In density measurement of liquids with differential pressure, two pressure measuring points are mounted at a fixed distance from each other. There are thus two different pressures acting on the system. The differential pressure transducer calculates the density of the medium from the resulting pressure difference.
Thanks to the fine graduation of the measuring cell ranges, the differential pressure system can be optimally adapted to the respective application.
 
The advantages
  • Real-time measurement of density in the ongoing process without sampling
  • Differential pressure transducers can detect differential pressures of only a few mbar
  • With an installed chemical seal, media with extreme temperatures can also be safely and reliably measured


ISOLATING DIAPHRAGM VEGADIF65 | Remote Seal Transmitter

DIFFERENTIAL TRANSMITTER VEGADIF 65 | Flow and Level Measurement

  
  
MINITRAC: Density measurement using the radiometric principle

In radiometric density measurement, an isotope emits focussed gamma rays. The detector on the opposite side of the pipeline receives the radiation.
The scintillator of the detector converts the gamma radiation into signals, whose number is detected and evaluated. Because gamma rays are attenuated when penetrating matter, the detector can calculate the density or concentration on the basis of the change in intensity.
 
The advantages
  • Simple retrofitting during ongoing production processes
  • High plant availability thanks to non-contact measurement
  • Exact measuring results independent of process conditions


MINITRAC 31

   
   

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