Online sound velocity density analyser_北京杜克泰克科技有限公司

Online sound velocity density analyser

Online sound velocity density analyser

Principle :

COMBITEC 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.

Characteristics

Available as Transmitter Version with Local Display and as Sensor

Highly Precise and Fast Determination of the Concentration

Based on Density and Sound Velocity Measurement

Applicable for a Huge Number of Liquids in Various Industries

Short Response Time and Excellent Long-Term Stability

Hygienic Execution, Full CIP Capability and Maintenance Free

Outstanding Price-Performance-Ratio

Specification

Technical Data

COMBITEC

Measuring Range

Density

Sound Velocity

0-3g/cm³

400-3,000m/s

Accuracy

Density

Sound Velocity

±0，0001 g/cm³

±0,05m/s

Repeatability

Density

Sound Velocity

±0,0001 g/cm³

±0,01m/s

Response Time

≤1s

Pressure of Operation

Max.16bar

Temperature of Operation

-25-+125℃

Temperature Compensation

Pt1000

Material

1.4404/AISI 316L;

Hastelloy C276; Monel 400

Incoloy 825; others on request

Connections

Inline-Housings DN40-DN150;others on request

Input

Transmitter Version

10×digital(24VDC)&

2×analog(4-20mA)

Output

Transmitter Version

5×digital(24VDC)&

2×analog(4-20mA)

Profibus DP

Transmitter Version

Sensor(w/o local display)

Option

standard

Enclosure Rating

IP65

Power Supply

24 VDC