Simultaneous Measurement of Alcohol, Extract and Original Gravity
 
The BEER MONITOR is a variant of COMBITEC for beer and beer mixed drinks. It measures alcohol and extract simultaneously during brewing; original gravity is automatically calculated and displayed by the sensor.
 
Measuring Principle
 
The instrument combines RHOTEC density measurement and SONATEC sound velocity measurement. Density is determined using the oscillating U-tube principle; for ultrasonic measurement, a sound pulse is generated and detected. A mathematical polynomial describes the product-specific relationship.
 
Applications
 
 
 
Beer
 
 
Beer Mixed Drinks
 
 
Brewing Process
 
 
Alcohol
 
 
Extract
 
 
Original Gravity
 
 
Quality Control
 
 
Temperature drift of the measurement signal is automatically compensated. European patent application: 1 439 438 B1.
 
Technical Data
 
Alcohol / Measuring Range and Accuracy: 0 - 12,5 vol. % / ± 0,02 vol. %
 
Extract / Measuring Range and Accuracy: 0 - 10 mass-% / ± 0,02 mass-%
 
Original Gravity / Measuring Range and Accuracy: 0 - 25 °Plato / ± 0,03 °Plato
 
Response Time: ≤ 1 s
 
Operating Pressure: max. 16 bar
 
Operating Temperature: -25 to +125 °C (Pt1000)
 
Material: 1.4404 / 1.4435 / AISI 316L; Hastelloy; tantalum; others on request
 
Input: 1 x analog (4 - 20 mA) & 6 x digital (24 VDC)
 
Output / Fieldbus: 2 x analog (4 - 20 mA) & 3 x digital (24 VDC)
optional: PROFIBUS DP & PROFINET
 
Enclosure Rating: IP65
 
Power Supply: 24 VDC
 
Three Process Variables: Highly accurate determination of alcohol, extract and original gravity.
 
Display at the Measuring Point: Depending on the version, the measured value can be read directly at the sensor.
 
Hygienic Design: Various materials and flange connections.
 
Modular Design & Extensions
 
COMBITEC – Concentration Analysis (Platform/Variant)
 
Alcohol-Brix Monitor – In-line Alcohol & Brix
 
Alcohol Monitor – In-line Alcohol Measurement (Ethanol)
 
RHOTEC – Density & Concentration (Base Technology)
 
SONATEC – Ultrasonic Measurement & Concentration (Base Technology)