Rudolph Research Analytical J457 – High Precision Refractometer

$Rudolph Research Analytical J457 – High Precision Refractometer$

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Rudolph Research Analytical J457 – High Precision Refractometer

The J457 from Rudolph Research Analytical is a top-tier digital refractometer designed for applications requiring extreme accuracy, wide measurement ranges, and robust temperature control. Its dual temperature control system, ultra-hard sapphire prism, and modular sample handling make it ideal for pharmaceutical, chemical, petroleum, and food industries.

Key Features

Refractive Index Range: 1.26 – 1.72 RI
Accuracy: ±0.00002 RI | ±0.01 Brix
Resolution: 0.00001 RI | 0.01 Brix (user selectable to 0.000001)
TempTrol™ dual temperature control: 10 °C to 110 °C (optional boost up to 120 °C)
Touchscreen interface with Windows® Embedded OS
Flat, easy-to-clean ultra-hard sapphire prism
21 CFR Part 11 compliance with audit trails and electronic signatures
Validation features for traceability (USP <831>, ISO, etc.)
Automated methods, trend tracking and result storage
Flexible sample handling: drop sample, ULV, vertical loading, solids/films

Applications

Pharmaceutical analysis in compliance with USP/EP/JP standards
Flavor and fragrance QC with RI + SG integration
Petroleum and crude oil measurements (ASTM D1218/D1747)
Food and beverage quality assurance (Brix/RDS)
Chemical concentration and purity control
Biological fluid and clinical lab testing (e.g. urine SG)
Sugar processing and sweetener validation

Ideal For

Pharmaceutical labs, petrochemical facilities, food and beverage manufacturers, flavor and fragrance companies, and clinical labs requiring highest-accuracy refractive index and Brix measurements, temperature control, and full regulatory compliance.

Contact Us

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