The fully automatic iPR HR² (High Resolution) digital refractometer continuously measures the refractive index and thus the concentration of solids in solution or the mixing ratios of binary or quasi-binary liquid mixtures. They are especially designed for the control of liquids with very low solid concentrations (e.g. light drinks) and they have a very high resolution and accuracy.
| Measuring range | 1.3320 - 1.3720 / 0 - 25 Brix |
| Resolution | 0.000005 nD / 0.002 Brix B2: 0.00002 nD / 0.02 Brix |
| Accuracy | ±0.00004 nD ±0.02 Brix (±0.01 to 2 % Brix at 20 °C / 68 °F) |
| Temperature | |
| Ambient temperature | 0 °C to 45 °C / 32 to 113 °F |
| Process temperature (max.) | +100 °C / 212 °F without water cooling +150 °C / 302 °F with built-in water cooling |
| Process temperature (min.) | -10 °C |
| Process pressure (max.) | 1 MPa (145 psi, 10 bar) |
| Additional Information | |
| Prism | YAG |
| Process contact material | YAG, stainless steel optional: PTFE |
| Protection class | IP 69 K tested by TÜV Rheinland |
| Light source / wavelength | 589 nm LED |
| Interfaces, switches
Power supply |
2 galvanically isolated 4-20 mA outputs 2 switching outputs (limit switch, 1 ampere) serial interface, optionally RS 232, 422 or USB24 VDC |
