RA-620 serie Refractometers

KEM

The RA-620 is a compact benchtop refractometer with a built-in Peltier thermostat, offering precise measurements with a range of 1.32000 to 1.58000 nD and a temperature control from 5°C to 75°C. Its sleek A4-sized design saves space, and the aluminum die-cast housing ensures durability and lightweight operation. The easy-to-clean sample stage and anti-volatilization cover enhance user convenience and measurement accuracy. Featuring a 4.7-inch color LCD touchscreen, it supports up to 100 methods and 300 data entries. With multiple interfaces, including LAN, USB, and RS-232C, it integrates seamlessly into lab environments. Ideal for accurate refractive index and Brix measurements.

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Features & Benefits

  • Compact Size and Lightweight
    • Space-saving design (A4 size) and two-thirds the size of previous models
    • Aluminum die-cast housing makes it half the weight of previous models
    • Easy installation in limited lab spaces
  • Built-in Temperature Control
    • Peltier Thermostat for precise temperature control (5 – 75°C)
  • User-Friendly Design
    • Easy-to-clean sample stage located at the front for convenient operation
    • Sample cover equipped with an anti-volatilization device to prevent sample evaporation and splashing on the LCD
    • Secure measurement with a start button that activates only when the sample cover is closed
  • High Accuracy and Precision
    • Refractive Index (nD) accuracy: ±0.00002, repeatability: ±0.00001, and resolution: 0.00001
    • Brix accuracy: ±0.014% (0 ~ 85.0%), repeatability: 0.01%, and resolution: 0.01%
  • Advanced Display and Operation
    • 4.7-inch backlit color LCD with touchscreen operation (includes stylus)
    • Graphic indicator for easy concentration range visualization
  • Comprehensive Data Handling
    • Stores up to 100 methods, 300 measurement results, 20 calibration records, and 20 check records
    • External storage capability via USB flash drive
  • Enhanced Security and Connectivity
    • Password protection for secure operation
    • Multiple interfaces including LAN, USB, and RS-232C ports for PC connection, printers, barcode readers, and sample changers

Methods

  • ASTM D1218
  • ASTM D1569
  • ASTM D1992
  • ASTM D2140
  • ASTM D4056
  • ASTM D4095
  • ASTM D5006
  • European Pharmacopoeia 2.2.6.
  • ICUMSA GS4/3
  • ISO 1743
  • OIML R 124

In correlation to

Downloads

Product specifications are available for download below. If you have any questions or need any further information, feel free to contact us.

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