ATR-L Dispersion Refractometer
Multiple wavelength digital refractometer for dispersion measurements.
The ATR-L is a digital, fully automatic spectral refractometer used to determine the refractive index of liquids of various viscosities regardless of opacity or color. The stainless steel measuring head allows for a minimum sample volume of 0.3 ml and is separate from the electronic control unit.
The ATR-L includes a built-in Peltier system and a precision thermometer for fast, precise temperature control. The use of discrete LEDs provides automatic dispersion measurement between 350nm and 1000nm at seven wavelengths making it possible to implement any combination of customer-specified wavelengths within the instrument and carry out quasi-spectral measurements in close to real-time.
Features
- High-precision refractometer
- Automatic dispersion measurement
- Seven fixed wavelengths
- Automatic ABBE number measurement
- Ideal for research and development
Main specifications
| Measuring scales | Refractive Index (RI) Sucrose (°Brix) |
| Measuring range | 1,33200 – 1,70000 RI / 100 °Brix |
| Resolution | 0,00001 RI / 0,01 °Brix |
| Precision | ± 0.00004 RI* / ± 0.03 °Brix |
| Reproducibility | ± 0.00004 RI* / ± 0.03 °Brix |
| Measurement mode | Single sample |
Temperature
| Ambient temperature | 15 °C – 40 °C |
| Temperature measurement | NTC sensor for measurement of sample temperature placed inside the prism |
| Temperature control sample | By build-in solid-state Peltier-thermostat |
| Temperature control range | 10 °C – 80 °C |
| Temperature resolution | 0.01 °C |
| Temperature precision | ± 0.03 °C |
| Temperature reproducibility | ± 0.02 °C |
| Temperature compensation Brix | 10 °C – 80 °C |
Additional information
| Prism | YAG |
| Light source/wavelength | LED, 7 discrete wavelength fixed 400, 450, 490, 545, 589, 660, 700 nm (others on request) |
| Display | backlit LCD, 16 x16 characters |
| Operation | 20 key membrane including function keys |
| Interfaces/communication | RS232 C serial bi-directional port, parallel interface (Centronics), USB optional |
Conformity
| Standards | International Pharmacopoeia, ASTM, AOAC, DIN, FDA, ICUMSA, and others |
* Standard conditions (589 nm, 20°C)