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    ATR L

    ATR L – Multi-Wavelength Refractometer

    SCHMIDT + HAENSCH ATR L is a robust, fully automatic multi-wavelength refractometer designed for precise measurement of refractive index and optical dispersion. It performs measurements at seven different wavelengths across the full visible spectrum, making it particularly suitable for research, development, and detailed material characterization.

    The ATR L enables automatic determination of the Abbe number and can distinguish components with the same refractive index. Its powerful internal Peltier temperature control ensures fast and highly accurate measurements. The instrument is suitable for measuring both liquid and solid samples, with only 0.3 mL of sample required for high-precision measurements.

    Category:

    KEY ADVANTAGES

    APPLICATIONS

    TECHNICAL SPECIFICATIONS

    Key Advantages

    • Fully automatic multi-wavelength refractometer
    • Measurement at 7 wavelengths
    • Automatic optical dispersion measurement
    • Automatic determination of the Abbe number
    • Measurement of liquid and solid samples
    • High measurement accuracy and repeatability
    • Peltier temperature control for fast and stable measurements
    • Ability to distinguish components with the same refractive index
    • Minimum sample volume of 0.3 mL
    • Robust stainless-steel measuring unit
    • Customer-specific wavelength combinations available
    • CCD detector with 2048 elements

    Applications

    The ATR L is particularly suitable for research and development, quality control, and material characterization. It can be used to determine product purity and identify different materials, including perfumes, wine, and other alcoholic beverages.

    The ability to measure solid samples enables quality control of hydrophobic and hydrophilic intraocular lenses (IOLs), contact lenses, optical materials, polymer films, glass, and other materials. Further applications include research on proteins, special optical liquids, adhesives, polymers, and petrochemical products, as well as ASTM standard measurements.

    Technical Specifications

    Specification
    ATR L
    Measuring scale
    Refractive Index (RI)
    Measuring range
    1,33200–1,70000 RI / 0–100% Brix
    Resolution
    0,00001 RI / 0,01 Brix
    Precision
    ±0,00004 RI / ±0,03 Brix
    Reproducibility
    ±0,00004 RI / ±0,03 Brix
    Measuring time
    20 s for all 7 wavelengths after temperature stabilization
    Ambient temperature
    +15 to +40 °C
    Operating temperature
    +10 to +80 °C
    Temperature stability
    0,01 °C
    Temperature precision
    ±0,03 °C
    Temperature control
    Solid-state Peltier thermostating
    Detector
    CCD linear array with 2048 elements
    Prism
    YAG
    Light source / wavelengths
    400, 450, 490, 545, 590, 660 i 700 nm
    Wavelength accuracy
    ±2 nm
    Communication
    1 × RS232 C, 1 × parallel, USB optional
    Display
    Backlit LCD, 16 × 16 characters
    Operation
    20-key membrane keypad with function keys
    Standards
    European and International Pharmacopoeia, various ASTM, ISO, and DIN standards
    Measuring head dimensions
    260 × 190 × 220 mm (W × H × D)
    Control unit dimensions
    220 × 110 × 290 mm (W × H × D)
    Complete unit weight
    8 kg
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