The alcohol brix monitor combines density measurement (RHOTEC) and sound velocity measurement (SONATEC) in a single system. Designed for applications requiring maximum sensitivity and highest accuracy – yet easy to use and maintenance-free .


 Application
 The Alcohol-Brix Monitor is a variant of the COMBITEC and enables the simultaneous measurement of alcohol and Brix during the production of wine , cider and spirits .


 Measurement principle (combined)
 
 
 Density measurement (RHOTEC):
 The product flows through a thin, U-shaped tube inside the sensor. Electromagnets excite the tube to oscillate at its resonant frequency . An internal reference oscillator detects the oscillation behavior. Even the smallest changes in density affect the signal and are precisely detected.
 
 
 Sound velocity measurement (SONATEC):
 A piezoelectric element generates a sound pulse in the ultrasonic transmitter. The pulse travels perpendicular to the product flow to the receiver, where it is detected. The speed of sound is determined from the measured travel time and the known distance.



 Evaluation (concentration reference)
 The relationship between concentration and density , or speed of sound, is described by a mathematical polynomial. Centec utilizes decades of experience and its own laboratory facilities for a large number of products.


 Temperature compensation
 Temperature drifts are automatically compensated via an internal Pt1000 sensor.


 Highlights
 
 
 Designed for highly precise inline determination of alcohol and Brix during the manufacturing process
 
 
 Compact design; local display available (depending on version)
 
 
 Hygienic design and full CIP capability
 
 
 Maintenance-free and easy to use
 
 
 European patent application: 1 439 438 B1



 Technical data
 Alcohol measuring range & accuracy: 0 - 25 vol. % ± 0.03 vol. %
 Brix measuring range & accuracy: 0 - 25 °Brix ± 0.04 °Brix
 Response time: ≤ 1 s
 Operating pressure: max. 16 bar
 Operating temperature: -25 to +125 °C
 Temperature sensor: Pt1000
 Material: 1.4404/1.4435/AISI 316L; Hastelloy; tantalum; others on request
 Connections: compatible with Varivent© inline housings DN40 - DN150; others available on request
 Input (transmitter version): 10 x digital (24 VDC) & 2 x analog (4 - 20 mA)
 Output (transmitter version): 5 x digital (24 VDC) & 2 x analog (4 - 20 mA)
 Profibus DP (Transmitter Version): Option
 Profibus DP (sensor, without local display): Standard
 Protection rating: IP65
 Power supply: 24 VDC


 contact
 For project-specific execution, integration and a quote, please use the contact form at the bottom of the page.


 Modular design & extensions
 COMBITEC – Concentration analysis (3-component)
 Oechsle Monitor – Inline Oechsle measurement (wine/cider)
 Brix Monitor – Inline Brix measurement
 Alcohol Monitor – Inline alcohol measurement
 RHOTEC – Density & Concentration
 SONATEC – Sound & Concentration