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.
The iPR HR² is a stand-alone process sensor with integrated electronics. Its special design and electronic equipment make it highly flexible and easy to handle. The device is programmed via WINDOWS based software. Optionally, a data logger is available. The iPR measuring head can be installed in pipes, reactor vessels, mixing tanks, kettles, boiling pans and evaporators, using different weld-in flanges.
|Measuring range||1.3320 - 1.3720 / 0 - 25 Brix|
|Resolution||0.000005 nD / 0.002 Brix B2: 0.00002 nD / 0.02 Brix|
(±0.01 to 2 % Brix at 20 °C / 68 °F)
|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)|
|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||2 galvanically isolated 4-20 mA outputs
2 switching outputs (limit switch, 1 ampere)
serial interface, optionally RS 232, 422 or USB