Concentration Measurement for Documented Liquids and Mixtures
 
The CONCENTRATION MONITOR determines concentrations in liquid 2-component mixtures. Depending on the medium, measurement is based on density using RHOTEC or sound velocity using SONATEC; conversion uses a suitable product-specific polynomial.
 
Measuring Principle
 
RHOTEC measures density; SONATEC measures sound velocity. This physical measured variable is only output as a concentration when a suitable mathematical polynomial describes the product-specific relationship. The measurement principle and characteristic curve are selected to suit the medium and measuring range.
 
Applications
 
 
 
Extract / °Plato, Brix, Oechsle
 
 
Ethanol and Methanol
 
 
Sodium and Potassium Hydroxide
 
 
Sulphuric Acid, Phosphoric Acid, Hydrochloric Acid
 
 
Nitric and Boric Acid
 
 
Sodium Chlorite, Formalin / Formaldehyde
 
 
Hydrogen Peroxide, Glycerine and Glycol
 
 
Acetone, Ammonia, Ammonium Nitrate, Urea
 
 
Temperature drift of the measurement signal is automatically compensated. European patent application: 1 439 438 B1.
 
Technical Data
 
Density: 0,0001 - 3,0000 g/cm³
 
Sound Velocity: 400 - 3.000 m/s
 
Extract / °Plato: 0 - 30 °Plato / Extract
 
Brix: 0 - 80 °Brix
 
Oechsle: 0 - 30 °Oechsle
 
Accuracy, Density / Sound Velocity: ± 0,0001 g/cm³ (R) / ± 0,05 m/s (S)
 
Accuracy, Extract / °Plato: ± 0,03 (R) / ± 0,07 (S)
 
Brix Accuracy: ± 0,03 °Brix (R) / ± 0,07 °Brix (S)
 
Concentration Accuracy: ± 0,1 wt-%
 
Specific media and ranges: Ethanol and methanol 0 - 100 %; sodium and potassium hydroxide 0 - 100 %; sulphuric acid 0 - 98 %; phosphoric acid 0 - 75 %; hydrochloric acid 0 - 42 %; nitric and boric acid 0 - 63 %; sodium chlorite 0 - 30 %; formalin / formaldehyde 0 - 40 %; hydrogen peroxide 0 - 90 %; glycerine and glycol 0 - 100 %; acetone 0 - 100 %; ammonia / ammonium nitrate 0 - 100 %; urea 0 - 32 %
 
Two Measurement Principles: Choice of density or sound velocity.
 
Product-Specific Evaluation: Concentration determined using a mathematical product polynomial.
 
Hygienic Design: Various materials and flange connections.