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Technical Data
MMeasuring Range 0 - 30 °Plato
Accuracy RHOTEC ± 0,03 °Plato
Accuracy SONATEC ± 0,07 °Plato
Measuring Temperature Range 60 - 103 °C
Response Time ≤ 1 s
Pressure of Operation max. 16 bar
Temperature of Operation - 25 - + 125 °C
Temperature Sensor Pt1000
Material 1.4404/1.4435/AISI 316L; Hastelloy; Tantalum; others on request
Connections compatible to Varivent© inline-housings DN40 - DN150; others on request
Input Transmitter Version 6 x digital (24 VDC)
Output Transmitter Version 3 x digital (24 VDC) & 2 x analog (4 - 20 mA)
Profibus DP Transmitter Version option
Profibus DP Sensor (w/o local display) standard
Enclosure Rating IP65
Power Supply 24 VDC
Application:
The EXTRACT MONITOR is a variant from RHOTEC or SONATEC and is used in the brewery's brewhouse. Extract measurement is typically performed during lautering and wort boiling.
EXTRACT MONITOR
The EXTRACT MONITOR utilizes the functionality of either RHOTEC (density measurement) or SONATEC (speed of sound measurement). The instrument is designed for applications requiring maximum sensitivity and the highest accuracy. It is easy to use and maintenance-free. For density measurement, the liquid flows through a thin, U-shaped tube within the sensor. Electromagnets excite the tube to vibrate at its resonant frequency. Simultaneously, an internal reference oscillator measures the vibration behavior. Even the smallest changes in the liquid's density affect the measured signal and are detected with the highest precision. For speed of sound measurement, a sound pulse is generated by a piezoelectric element in an ultrasonic transmitter. It travels perpendicular to the product flow toward an ultrasonic receiver, where it is detected. Since the distance between the transmitter and receiver is known, the speed of sound can be easily determined by measuring the time it takes the sound signal to travel. As a specific property of each liquid, the relationship between concentration and density, or speed of sound, can be described by a mathematical polynomial. With decades of experience and our own laboratory facilities, Centec knows the polynomials for a large number of products. Temperature drifts of the measurement signal are automatically compensated for by an internal Pt1000 sensor.
European patent application: 1 439 438 B1
Most accurate technology for determining extract in the manufacturing process
Patented compact design with local display available
Hygienic design and full CIP capability
Easy to use and maintenance-free
