Techotrix

ATR-L

Multiple wavelength digital refractometer for dispersion measurements.

The digital, fully automatic spectral refractometer ATR-L consists of an electronic unit separated from the stainless steel measuring unit. Dispersion measurement at 7 wavelengths over the full visible range. A sample volume of 0,3 ml is sufficient for measuring. The refractometer is equipped with a Peltier thermostat (no external water bath/thermostat necessary).

The digital multiple wavelength refractometer of SCHMIDT + HAENSCH is based on CCD-sensor detection of the critical angle of total reflection. This is done sequentially for all LEDs (colours) and displayed as refractive indices according to these wavelengths. SCHMIDT + HAENSCH has the necessary data basis for calibration of such an instrument through research work performed at its premises in Berlin.

  • High-precision refractometer
  • Automatic dispersion measurement
  • Seven wavelengths fixed
  • Automatic ABBE number measurement
  • Ideal for research and development

    Main specifications

    Measuring scales Refractive Index (RI)
    Sucrose (%Brix)
    Measuring range 1,33200 – 1,70000 RI / 100% Brix
    Resolution 0,00001 RI / 0,01 Brix
    Precision ± 0.00004 RI* / ± 0.03 Brix
    Reproducibility ± 0.00004 RI* / ± 0.03 Brix
    Measurement mode Single sample

    Temperature

    Ambient temperature 15 °C – 40 °C
    Temperature measurement NTC sensor for measurement of sample temperature placed inside the prism
    Temperature control sample By build-in solid state Petier-thermostat
    Temperature control range 10 °C – 80 °C
    Temperature resolution 0.01 °C
    Temperature precision ± 0.03 °C
    Temperature reproducibility ± 0.02 °C
    Temperature compensation Brix 10 °C – 80 °C

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