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Refractometer Model Comparison Charts

Refractometer Model Comparison Guide

Below is a breakdown and refractometer model comparison guide to help you determine which refractometer is best for your industry.  This guide goes over instrument specifications so that you may compare and contrast each model. Categories of interest include accuracy, temperature control, resolution, reproducibility and other options included as well.

Refractometer Models/Specifications
J57HA J57HA-UF-SP J57TPN J157-CC J157PTW J157KVP
Measurement Range 1.33 – 1.53 RI, 0 – 100% Brix, 1.0000 – 1.0400 Urine SG
Measurement Scales Refractive Index (RI) Brix (% sucrose), Temperature Corrected Brix, Temperature Corrected RI, Urine SG Refractive Index (RI) Brix (% sucrose), Temperature Corrected Brix, Temperature Corrected RI, Urine SG and 100 User Programmable Scales
Resolution 0.00001 RI, 0.01 Brix, 0.0001 Urine SG
Reproducibility ±0.00002 RI, ±0.015 Brix, ±0.0001 Urine SG
Accuracy 0.00004 RI, 0.01 Brix, 0.0001 Urine SG
Control Temperature 20°C and 25°C 15°C to 50°C 15°C to 40°C 15°C to 30°C
Ambient Temperature Limit 10°C to 40°C
Sample Temperature Limit -20°C to +250°C
Temperature Correction Range 18 to 95°C (for pure sucrose)
Wavelength 589.3nm (other wavelengths available)
Light Source Light Emitting Diode (exp life > 1,000,000 measurements)
Calibration 1, 2 or 10 point using water or NIST traceable standards
Communication Interface 2 RS232 ports, 1 parallel port, 1 auxiliary port and USB adaptor available
Refractometer Models/Options
J57HA J57-HA-UF-SP J57TPN J157-CC J157PTW J157KVP
Concave Cover, No Sample Contact Not Available CC Option Standard Not Available
Contact Sample Presser CP Option Available
Automeasure Feature AM Option Available
Hastelloy Feature H Option Available Not Available H Option Available
Small Volume Sample Well (100 μ liters) SV Option Available SV Option Available
Micro Flow Cell with Sealed Prism Not Available UF-SP Option Available Not Available
Pour In Options Not Available PTW Option Standard KVP Option Standard
Data Storage Not Available MMC Option Available Not Available
Models/Specifications
J57WR J57WR-UF-SP J257-CC J357-NDS
Measurement Range 1.26 – 1.70 RI, 0 – 100% Brix
Measurement Scales Refractive Index (RI) Brix (% sucrose) Refractive Index (RI) Brix (% sucrose) 100 User Programmable Scales
Resolution 0.0001 RI, 0.01 Brix 0.0001 RI, 0.01 Brix 0.00001 RI, 0.01 Brix
Reproducibility ±0.0001 RI, ±0.1 Brix ±0.0001 RI, ±0.1 Brix ±0.00002 RI, ±0.015 Brix
Accuracy 0.0001 RI, 0.1 Brix 0.0001 RI, 0.1 Brix 0.00004 RI, 0.03 Brix
Control Temperature 20°C and 25°C 15°C to 70°C 15°C to 100°C
Ambient Temperature Limit 10°C to 40°C
Sample Temperature Limit -20°C to +250°C
Temperature Correction Range 18 to 95°C (for pure sucrose)
Wavelength 589.3nm (other wavelengths available)
Light Source Light Emitting Diode (exp life > 1,000,000 measurements)
Calibration 1,2 or 10 point using water or NIST traceable standards
Communication Interface 2 RS232 ports, 1 parallel port, 1 auxiliary port and USB adaptor available
Refractometer Models/Options
J57WR J57WR-UF-SP J257-CC J357-NDS
Concave Cover, No Sample Contact Not Available CC Option Standard
Automeasure Feature AM Option Available
Contact Sample Presser CP Option Available
Hastelloy Feature, Acid Resistance H Option Available Not Available H Option Available
Small Volume Sample Well (100 μ liters) SV Option Available SV Option Available
Temperature Boost Not Available TB Option Available
21 CFR Part 11 Compliance / Data Storage MMC Option Available

Refractometer Selections by Industry

  • Food and Beverage
  • Sugar Milling, Refining, Processing
  • Chemical
  • Pharmaceutical and Toxicology Testing
  • Petroleum
  • Flavor, Fragrance, Cosmetics
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