OECHSLE MONITOR
The OECHSLE MONITOR is an inline measurement system for determining °Oechsle during production. Depending on the version, the device uses the functionality of RHOTEC (density measurement) or SONATEC (sound velocity measurement). Designed for applications requiring high sensitivity and very high measurement accuracy – with straightforward operation and low-maintenance design.
European patent application: 1 439 438 B1
Application
The OECHSLE MONITOR is a variant of RHOTEC or SONATEC and enables Oechsle measurement during production of:
- Wine
- Cider
What does the OECHSLE MONITOR measure?
- °Oechsle in the process (inline measurement)
The °Oechsle determination takes place before fermentation.
Measurement principle – depending on the version
1) RHOTEC version (density measurement)
- The medium flows through a thin U-shaped tube inside the sensor.
- Electromagnets excite the tube to oscillate at its resonance frequency.
- An internal reference oscillator records the oscillation behavior.
- Even the smallest density changes affect the signal and are detected with high precision.
2) SONATEC version (sound velocity measurement)
- A piezo element generates a sound pulse in the ultrasonic transmitter.
- The pulse travels perpendicular to the product flow toward an ultrasonic receiver, where it is detected.
- Based on the known distance between transmitter and receiver and the measured transit time, the sound velocity is determined.
Evaluation / product-specific correlation
The relationship between concentration and density or sound velocity can be described using a mathematical polynomial. Centec uses such polynomials for a large number of products.
Temperature compensation
Temperature drift of the measurement signal is automatically compensated by an internal Pt1000 sensor.
Key technical points at a glance
- High-precision measurement technology for determining Oechsle in the production process
- Patented compact design; local display available (depending on version)
- Hygienic design and full CIP capability
- Straightforward to operate and designed for low maintenance
Technical data
Measuring range: 0 - 30 °Oechsle
Accuracy RHOTEC: ± 0.03 °Oechsle
Accuracy SONATEC: ± 0.07 °Oechsle
Measurement temperature range: -3 to +25 °C
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 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 without local display): Standard
Protection class: IP65
Power supply: 24 VDC
Contact
To select the appropriate version (RHOTEC / SONATEC) and integrate it into your line, please use the contact form below.
Modular Design & Erweiterungen
RHOTEC – Dichte & Konzentration
SONATEC – Schall & Konzentration