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 | |||
