The automatically operating process refractometers iPR FR² (Full range) measure the refractive index continuously and thus, the concentration of a binary or quasi-binary liquid mixture. The measurement is independent of light intensity from the light emitting diode (LED) and is free of signal drift, granting high precision and better process control. Colour, turbidity, undissolved particles or gas bubbles do not affect the measurement. You can choice from 2 wide measuring ranges.
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||B1: 1.3320 - 1.5300 / 0 - 100 Brix|
|Resolution||0.00001 nD 0.01 Brix|
|Accuracy||± 0.00007 nD ±0.05 Brix (at 20 °C / 68 °F)|
|Ambient temperature||0 °C to 45 °C/ 32 to 113 °F|
|Process temperature (max.)||+ 80 °C / 176 °F without water cooling
+150 °C / 302 °F with built-in water cooling
|Process temperature (min.)||-10 °C / 14 °F|
|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
|Explosion-proof version||yes, ATEX Class Ex II 1G Ex ia II C T4|