Officially Verified Alcohol Measurement by Density
 
RHOTEC ALC-TAX is a variant of RHOTEC for alcohol measurement during production when alcohol content must be determined using a certified instrument for tax purposes.
 
Measuring Principle
 
The liquid flows through a thin U-shaped tube in the sensor. Electromagnets excite the tube to oscillate at its resonant frequency. Even the smallest density changes affect the signal and are precisely detected.
 
Applications
 
 
 
Alcohol Production
 
 
Processes Relevant to Taxation
 
 
Certified Measurement
 
 
Density Measurement
 
 
Production Process
 
 
Quality Control
 
 
Temperature drift of the measurement signal is automatically compensated. European patent application: 1 439 438 B1.
 
Technical Data
 
Measuring Range: 0 - 3 g/cm³
 
Accuracy: ± 0,0001 g/cm³
 
Repeatability: ± 0,00001 g/cm³
 
Response Time: ≤ 1 s
 
Officially Approved Pressure Range: 0 - 5 bar
 
Officially Approved Temperature Range: 5 - 40 °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; optional: ATEX (II 3G Ex ic IIC T6 Gc)
 
Power Supply: 24 VDC
 
Highest-Accuracy Alcohol Determination: Density measurement for processes relevant to taxation.
 
Approved and Certified: Approval by German authorities.
 
PTB Type Approval: Verification error limit 0,0001 g/cm³.
 
Modular Design & Extensions
 
RHOTEC – Density & Concentration
 
Alcohol Monitor – In-line Alcohol Measurement (Ethanol)
 
Ethanol Measuring System EMS – Alcohol-Water Mixture & Pure Alcohol Totalization
 
Sensors & Measurement Technology