Digital Refractometer, Rudolph Research J47 Press Release

Refractometer J47

Digital Refractometer, New from Rudolph Research; The J47 is Temperature correcting, and designed for the Sugar and Food industries.

  • Very fast measurement
  • Simple to load, simple to measure, simple to clean
  • Result independent of operator judgment
  • Rugged, reliable, and perfect for high throughput applications in the sugar and food industries.
  • Accurate, on-board temperature correction
  • Lower cost over the expected life of the instrument Vs traditional Abbe refractometers.

APPLICATION

The J47 and J47WR/HP (Wide Range-High Performance) are designed specifically to meet the unique needs of a food and beverage testing where the samples are mostly a mixture of sugar and water and the refractometer is viewed more as a production tool than a laboratory instrument. The J47’s single flat measurement surface, temperature correction and one button measurement capability make it perfect for heavy use applications. The J47 is rugged, reliable, requires little operator skill, is easy to clean, and very easy to read.

AUTOMATIC DIGITAL MEASURING SYSTEM

The Rudolph J47 features a fully automatic measuring system. The operator simply places the sample on the prism; presses a button and the result is displayed on a 7.5cm x 10cm back lit LCD. There are no shadow lines to match and there is no eyepiece requiring operator determination or manual adjustment.

TEMPERATURE CORRECTION

The Rudolph J47 corrects for errors caused by sample temperature variation using the latest ICUMSA temperature correction tables. Temperature correction is a very fast mathematical solution to obtaining measurement results without a temperature control system or a water bath. These measurement results are the most accurate with samples that are comprised of predominantly sugar and water.

HIGH ACCURACY IN THE APPROPRIATE CIRCUMSTANCES

The J47 was designed for the food and beverage industries with a BRIX range of 0 – 95% and a Refractive Index range of 1.32-1.53. The J47WRHP has a refractive index range of 1.26 – 1.70. The J47 offers an accuracy of ±0.1 BRIX and ±0.0001 Refractive Index. The J47WRHP has an accuracy of 0.03 Brix and 0.00004 Refractive Index. The J47’s measurement range and accuracy more than exceed, what is required in most food and beverage production applications.

SCALED DOWN LABORATORY INSTRUMENT

The J47 is the temperature corrected but not temperature controlled model of the Rudolph range. It offers most of the same features as our more expensive models but lacks the built in peltier heating and cooling system for highly accurate measurements. The J47 is a true simplified laboratory instrument replacing the manual ABBE or a digital hand refractometer pushed beyond it’s limits.

EASY TO CLEAN MEASUREMENT SURFACE

Regardless of an instrument’s specified accuracy, a digital refractometer’s real world performance depends on how well the instrument is cleaned between samples. The J47 addresses this issue by providing a very flat easy to clean measurement surface with no corners or crevices that tend to trap samples causing contamination.

HIGH DURABILITY SAPPHIRE PRISM

When a traditional manual Abbe refractometer is used in a high throughput application prism replacement becomes a regular task. This is because traditional Abbe refractometers have glass prisms which are much softer than the sapphire prism of the J Series and thus more prone to scratching and general wear and tear as described below.

LOWER COST OF USE

The traditional method of measuring Brix in a laboratory was a Abbe refractometer, sometimes with a water-bath attached, sometimes not. (An Abbe with a water-bath is the functional equivalent to the Rudolph J57. An Abbe without the water-bath is the functional equivalent to the Rudolph J47).
The cost of replacing the Abbe’s dual glass prisms over time makes owning a J47 with its single sapphire prism actually less expensive than owning an Abbe over their comparable useful lives.

CALIBRATION

The J47 offers a 1 or 2 point user calibration. The instrument stores the calibration information in line with ISO and similar standards. The calibration system is password protected enabling an administrator to control who can calibrate the instrument.

USER CONFIGURABLE

Versatile instruments have advantages when applications change. However, versatility can sometimes lead to confusion by forcing operators to interpret extra results that may have no relevance. The J Series customizable display allows the instrument to be configured to exactly what is required for each application. The customizable keypad can be “locked out” or just a few keys can be operable, making for an even faster learning curve. The lockout function, calibration and other functions are all password protected.

OPTIONS AND ACCESSORIES

  • NIST Traceable Calibration liquids
  • IQ/OQ/PQ Package
  • Acid resistant sample well and plate
  • Printer
  • Data capture software
  • Small volume sample well
  • Different measurement wavelengths
  • Barcode reader

Additional information about the Rudolph Research J47 Refractometer is available here.

Contact: Peter Marriott, Rudolph Research Analytical, Refractometer Product manager may be reached at +01-973-584-1558 or PMarriott@rudolphresearch.com

Author

Rudolph Research