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AR70 Automatic Digital Refractometer

The AR70 Automatic Digital Refractometer features exceptional accuracy, solid-state Peltier temperature control, a wide reading range, and simple, fast operation. It offers outstanding flexibility providing accurate readings for a variety of applications, from chemical identification to purity determination to concentration measurements.

The AR70 refractometer has an expanded refractive index reading range of 1.3300 to 1.6000 and Peltier temperature control from 10° to 100° C. It analyzes a broad range of samples, from fruit juices to polymers, and eliminates the need to dedicate instruments for specific products.

Key Features

  • Sapphire prism for incredible durability
  • Peltier temperature control from 10° to 100°C with automatic temperature equilibration detection to ensure accurate readings
  • No water bath circulators are ever required
  • Refractive Index range of 1.3300 to 1.6000
  • Brix range of 0.0 to 95.0%
  • User-definable calibration points throughout the reading range ensure accuracy at every point
  • Accommodates sample types that are transparent, translucent or opaque
  • Simple calibration, NIST certified oils included
  • Calibration history log
  • Accessories enhance repeatability, accuracy and reliability for special applications that call for them

Reading Precision

AR70 has precision to 0.1% Brix or 0.0001 Refractive Index

Operation Automatic, Reflected Light Refractometer
Catalog Number 13107700 (110 to 220v with US, EU and UK power cords)
Sample Types Transparent, translucent, and opaque liquids
Reading Range 1.3300 to 1.6000 Refractive Index, 0.0 to 95.0% Brix
Precision 0.0001 Refractive Index, 0.1% Brix
Illumination High intensity, long life LED's, 589 nm
Calibration Set Point or Set Point/Span user- definable
Temperature Control Method Built-In Peltier system, (No water bath circulator needed)
Temperature Control Range 10° to 100° Celsius
Temperature Precision 0.01° Celsius
Prism Assembly Sapphire prism mechanically sealed with Teflon gasket to 416-grade stainless steel sample well
Display Graphic LCD display, 4.3 W x 2.4 H (11 X 6 cm)
User Interface Simple, effective 5-button operation
I/O 2 RS-232-C serial ports
Warranty 2 years
Software Features Calibration history record, programmable with up to 14 custom scales, password protected set-up, automatic sample equilibration detection, restore to factory option

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