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Protecnica Solutions Ltd

PerfectPitch Yeast Control Industrial & Chemical Video & Learning

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Fluid Sound Velocity and Precision Density Measurement

Combined for Complex In-line Liquid Analysis

In-line Alcohol %ABV & Extract Control

Monitor Beers, Ciders and Beverages

Control Formaldehyde Production

Measuring range:

Temperature compensation: PT 1000


Operating Temperature: Standard: -25°C to +125°C

Pressure range: up to 16 bar g. Max.

Process connections: Varivent DN 40-DN100 / 1½-4". Others on request.

Materials in product contact: 1.4404 (316L) s/steel. Numerous other materials as options

Electrical Supply: 24 V DC 1.5 amp

Enclosure: IP 65.

Case material: Aluminium (epoxy power coated); Option for TR models: Polished stainless steel.


COMBITEC by Centec GmbH      Made in Germany

On-line instruments for continuous accurate measurement of three-component liquids, after fermentation and process reaction. In breweries COMBITEC is known as THE BEER MONITOR.

Applications: Accurate analysis of numerous three component liquids to measure both the sound velocity and the density of the product. Excellent for monitoring fermentation and reaction processes. Using special algorithms COMBITEC calculates values such as %ABV and Extract.

Install: Sensors as on-Line instruments.

Includes ample I-O connections for process control and alarms

Operating principle:  

Measure minute changes in the oscillating frequency of a vibrating U tube through which the product passes to determine the density, and also measure the speed of high frequency sound through the liquid product to monitor non-density related variables. The two continuous streams of data provide close monitoring and trend analysis opportunities for a wide range of liquid products. Alarm points can be set for hundreds of different programmable products, to warn operators or control a process in the event of deviation beyond a set point.

Benefits: Very accurate, Reliable, Long operating life, CIP Cleanable, Virtually no maintenance,

Combitec SD - On-line /In-line instruments.

Combined - Ultrasound Velocity and Fluid Density Sensors - ABV Measurement

Technical Specifications


Combitec SD

Used for monitoring beer

and other quality critical liquids

COMBITEC (BeerMonitor) (UK).pdf COMBITEC_Extract and Alcohol.pdf

Alcohol & Extract



CH4O and CH2O Measurement in Formaldehyde Production  

Concentration Measurement of Methanol and Formaldehyde.pdf



Application Examples with Complex Liquids for

Combined Sound Velocity & Density Measurement