IPR Series
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In-Line immediate concentration monitoring directly in the process steam in less then 1 sec. • Concentration monitoring • Product interface detection • Deviation from the nominal value (Quality control) • Crystallization monitoring • Dosage control • Fermentation control • Food / Beverage • Sugar Production • Cooling / Lubbricant Agents SCHMIDT+ HAENSCH Opto-electronic measuring devices since 1864

smart heads For more than 30 years In-Line Process Refractometers iPR from SCHMIDT+HAENSCH have been used successfully in the process analytical measuring technology. Our iPR's continuously measure the refractive index and determine thereby the concentration of dissolved solids in solution and/or the mixing proportion of binary or quasi-binary liquid mixtures. The measurement is independent of turbidity, colour and absorption as well as viscosity. Archieved results are free of signal drifts, featuring high stability and precision. With over 30 years experience in development temperature...

iPR In-Line sensors can be used as a standalone solution with integrated display and can be connected directly to a PLC. External Data Logger which interfaces for multiple iPR‘s to record and visualise is available as accessory. The iPR measuring heads can be combined with various process sensors such as O2, CO2, pH, turbidity or conductivity to an intelligent sensing station. (up to 1 A), the iPR‘s can remotely control pumps, valves as well as signals (e.g. visual, acoustic alarm). This feature allows a direct, real-time process control. To be resistant against most chemicals, our smart...

Technical data iPR-series Measuring range: Brix range: Process temperature: Power supply: Light source: Temperature corrected 1 output 4 - 20 mA, 1 digital output switch (up to 1 A) 1 serial output (RS232, alternately RS485 or USB) Measuring range: Brix range: User scales: Process temperature: Process contact material: Power supply: Light source: Mounting accessories: Temperature corrected 4 scales temperature compensated -10 up to +1 50°C (with water cooling installed) Saphir or YAG, Stainless steel, optional: PTFE 2 insulated 4 - 20 mA analog outputs 2 digital output switch (up to 1 A) 1...

Mounting accessories for process integration iPR Inline housing Inline housing from SCHMIDT+HAENSCH are perfectly suitable for hygienic installations of processes in vessels or pipes. The VariVent joint system allows easy installation of iPR instruments through a plug-in and clamping method. The Inline housing can be used with process pressure up to 10 bar. Some processes may require cleaning of the sensor face. SCHMIDT+HAENSCH offers an optional cleaning nozzle (see picture) or an ultrasonic cleaning device. For pipe size not shown in the table other combinations of bypass lines or...

Inline housing VariVent / TriClamp ends For installation in pipes with TriClamp connection Metric Outside diameter to DIN 11850, series II, DIN 11866, series A Pipe diameter DN 40 DN 50 DN 65 DN 80 DN 100 DN 125 Inch Outside diameter in accordance with ASME-BPE-a-2004, DIN 11866, series C Pipe diameter 1 1/2“ 2“ 2 1/2“ 3“ 4“ Inline housing APV / welded ends For installation of iPR in pipes by welding ange Metric Outside diameter to DIN 11850, series II, DIN 11866, series A Nominal-wide d DN 25 DN 40 DN 50 DN 65 DN 80 DN 100 DN 125 DN 150 Data Logger Electronic data storage with up to 6...

About Refractometry In a vacuum, light travels at a maximum speed of about 300.000 km/s while travelling through water, the speed is about 225.000 km/s, which is 25% less. In a sapphire it will only reach 170.000 km/s. In case the incident angle is 60° there will be no refracted ray any more, we would say: light is totally reected. 0° In practice, the refractive index determines the mixing ratio also of multicompound solutions quite exactly and easily as in general only the concentration of one of the componends needs to be determined. Thus it is a quantitative measurement. and the...

90° angle VariVent mounting with hose connection Inline installation (with bypass for maintenance work) Installation in crystallizer (vessel ange) Pipe work installation VariVent with ultrasonic cleaning Installation in circulating process with pump Teon bypass for high corrosive liquids and semiconductor processes Refractometer applications Chemical industry Inorganic acids and bases Fats and oils Organic products and dissolvents Salt solutions Pulp and paper Paints and glues Petrochemical industry Petrol chemical products (ex proof version available) Resins Semiconductor industry...