Description
It combines the functionality of both RHOTEC and SONATEC. In various industries and around the world this device simultaneously measures density and sound velocity in 3-component liquids with highest sensitivity and accuracy. For density measurement, the liquid flows through a U-shaped tube. While the tube is electronically excited to oscillate at resonance, the oscillation frequency is observed. Any change in the density has an impact on the detected signal and can thus be identified. At the same time the instrument measures the speed of a sound pulse between a transmitter and a receiver. The sound pulse is created by piezo-elements and moves perpendicular to the product flow. As a specific property of each liquid, the correlation between concentration and density resp. sound velocity can be described by a mathematical polynomial. With decades of experience and own laboratory facilities, we have particular knowledge about these polynomials for a huge number of products. Any temperature drifts of the measured signal are automatically compensated for by an internal Pt1000 sensor. COMBITEC displays various units, e.g. vol.%, mass %, °Brix and °Plato.
- Density: 0 -3 g/cm3
- Sound Velocity: 400 – 3.000 m/s
- Density Accuracy: ± 0.0001 g/cm3
- Sound Velocity Accuracy: ± 0.05 m/s
- Density Repeatability: ± 0.0001 g/cm3
- Sound Velocity Repeatability: ± 0.01 m/s
- Response Time: < 1 s
- Pressure of Operation: max. 16 bar
- Temperature of Operation: – 25 to + 125 °C
- Temperature Compensation: Pt1000
- Material: 1.4404/AISI 316L, Hastelloy C276, Monel 400, Incoloy 825, others on request
- Connections: compatible to Varivent©, Inline-Housings DN40 – DN150, others on request
- Input: 10 x digital (24 VDC) & 2 x analog (4 – 20 mA)
- Output: 5 x digital (24 VDC) & 2 x analog (4 – 20 mA)
- Transmitter w/o local display
- Rating: IP65
- Power Supply: 24 VDC
