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  • Photoacoustic Gas Analyzer
  • Dissolved O2, O3, H2 analyzer
  • Oil & Gas Pipeline Health
  • Sonic densitometer
  • Dissolved carbon dioxide analy
  • Other instrumentation

    • 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

     

    Compatible to Varivent?

    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


    Consulting phone 010-8243-3533
    Duke. All rights reserved Beijing tech technology Co. Ltd. 京ICP備14007870號-1
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