Refractometer Specifications J457 (All models)
| Measurement scales: | Refractive Index (nD), Brix (% Sucrose), and up to 100 custom programmed scales |
| Measurement range: | Refractive Index 1.32 – 1.45 Brix 0 – 100 |
| Accuracy: | Refractive Index ±0.00002 Brix 0.015 |
| Reproducibility: | Refractive Index ±0.000005 Brix 0.015 |
| Resolution: | Refractive Index 0.000001, Brix 0.01 |
| Temperature control range: | All samples are brought to 20.00°C before measurement |
| Temperature control reproducibility: | ±0.01°C |
| Ambient temperature limit: | 5°C to 40°C |
| Temperature correction range: | 4°C to 95°C (for sucrose solutions) |
| Sample temperature limit: | -20°C to 250°C |
| Optical wavelength: | 589.3nm (NaD line) |
| Response time: | User configurable, generally less than 30 seconds |
| Calibration: | Using water or NIST traceable fl uids. Factory default calibration can always be reset. |
| Prism: | Artificial sapphire |
| Acid resistance: | Hastelloy™ measurement surface (optional) |
| Data storage/ internal memory: | 32 GB Non-removable Compact Flash |
| Display: | Adjustable 10.4 inch diagonal, 800-600 pixels, color, Flat Panel Monitor with Resistant Touch Screen Interface, 400 nits brightness, gasketted for spill protection |
| User interface: | Touchscreen |
| Communication interface: | 3 USB, RS232 and Cat5 Network (Ethernet) |
| Operating dimensions/weight: | L: 17 1/4” W: 12” H: 13” / 23 lbs. L: 43.5cm W: 30.5cm H: 33cm / 10.4 kg |
| Power requirements: | 100 – 240 volts, 50 Hz – 60 |