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The J57HA and J57WR are part of the Rudolph Research Refractometer Product Line. The Rudolph J57HA and J57WR refractometers are designed to meet the unique needs of food quality testing where the automatic refractometer is viewed as a quality control (QC) tool rather than a laboratory instrument. A single flat measurement surface, automatic electronic temperature control, and one button measurement capability make it perfect for heavy use food industry applications, where fast, automatic, and accurate Brix readings are required.
Where High Accuracy is critical the J57HA Model Refractometer offers Accuracy of ±0.00002 RI and Brix Accuracy of ±0.01 with an RI Measurement range of 1.32-1.53 and Brix measurement range of 0-100. The capabilities of J57HA are designed to meet the application requirements of the Food and Beverage Industry.
Where Measurement Range is most importance the J57WR Model Refractometer offers an RI Measurement range of 1.29-1.66 and Brix measurement range of 0-100 with Accuracy of ±0.0001 RI and Brix Accuracy of ±0.1. The Rudolph J57WR is an excellent fit for Chemical Industry Laboratories where applications often require a wider RI measurement range.