plaquette d'information sur le réfractomètre de processus iPR-Series

Process-refractometer iPR-Series

Inline, immediate concentration monitoring directly within the process stream.

Applications

• Concentration monitoring
• Product interface detection (product recovery)
• Deviation from a nominal value (quality control)
• Crystallization / powder or crystal dissolving monitoring
• Dosage control (blending)
• Impurity detection

Inline Process Refractometers (iPR) from SCHMIDT+HAENSCH have been used successfully in a wide range of process monitoring applications for more than 35 years. Our iPRs continuously measure the refractive index and instantly determine 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. Over 35 years of experience and optimization, we have designed technical solutions for various demanding applications and challenging process conditions. S+H IPRs perform with unmatched reliability, resolution and precision by using only highest quality components and manufacturing standards.

Technological highlights of iPR measuring heads

• Measurement in less than 1 second
• Compact units with integrated electronics in the IP69K housing (integrated or remote display optional)
• Temperature measurement within the sapphire prism ensuring the fastest and most precise temperature reading resulting in drift free temperature compensated measuring values
• Stated precisions are valid within the whole temperature range
• LED light source (589nm), extremely long lifetime (100,000 hours)
• Due to the unique technology implemented, the iPR light source does not have to be exchanged or recalibrated during the entire life time of the instrument
• Measuring sensors meet the hygienic requirements of the food and pharmaceutical industries and tolerate temperatures up to 150°C
• Temperature compensation for individual products (e.g. Brix, Oechsle, Glycol, H2O2)
• User configurable digital switches (1 A)
• Galvanic isolated 4 - 20 mA outputs
• Internal desiccant bag increasing the life span of electrical and optical components
• Electronic moisture sensor within the measuring head
• Process connections with VariVent (Tuchenhagen), TriClamp, APV, or in-line housing for small volumes
• Known SCHMIDT+HAENSCH quality „Made in Germany“

Application highlights

Food and beverage industry: Quality control of chocolate, coffee, yoghurt, soya milk, honey and other food additives, dilution or evaporation process control in juice, jam, ketchup industries, dealcoholisation process of beer, payment system in the wine production (sugar content - Oechsle, Brix), process monitoring in the pectin production, control of coffee and tea extraction process, CIP monitoring, product recovery and interface detection.

Sugar, starch, sweeteners: Brix measurement of cane sugar, beet sugar, starch, sugar, raw sugar refining, molasses, monitoring of the crystallisation process, impurity detection in condensate, concentration measurement of starch or sweetener.

Pharmaceutical industry: Extraction, mixing, preparation, purity testing, crystallisation and dissolution monitoring, monitoring of chemical reactions as well as impurity detection, quality control of final products, in accordance with Pharmacopoeia requirements.

Tobacco industry: Monitoring of washing baths, flavours and fragrances control, concentration measurement during extraction of the active ingredients, concentration of coolants.

Mechanical processing, mining industry: Concentration measurement and dosing of cutting oils and lubricants, lubricants blending control, concentration of coolants.

Smart heads for smart solutions: iPR inline sensors can be used as a stand-alone solution with integrated display or connected to a PLC. Using the integrated digital switches (up to 1 A), the iPRs can remotely control pumps, valves as well as signals (e.g. visual, acoustic alarm). This feature allows a direct, real-time process control and simple automations (e.g. simple dosage systems) without an additional PLC. The iPR measuring heads can be combined with various process sensors such as O2, CO2, pH, turbidity or conductivity to an intelligent sensing station.

Technical data iPR-Series

• iPR Compact2: Measuring range 1.3200 - 1.4535 RI / 0 - 65 Brix, Resolution 0.0001 RI / 0.05 Brix, Precision ± 0.0002 RI / ± 0.15 Brix
• iPR Basic3: Measuring range 1.3200 - 1.5200 RI / 0 - 90 Brix, Resolution 0.00001 RI / 0.01 Brix, Precision ± 0.00014 RI / ± 0.1 Brix
• iPR FR2 (Fullrange): Measuring range 1.3200 - 1.5300 RI / 0 - 100 Brix, Resolution 0.00001 RI / 0.01 Brix, Precision ± 0.00007 RI / ± 0.05 Brix
• iPR HR2 (High Resolution): Measuring range 1.3200 - 1.3720 RI / 0 - 25 Brix, Resolution 0.000005 RI / 0.002 Brix, Precision ± 0.00004 RI / ± 0.02 Brix

Mounting accessories for process integration

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 system or an ultrasonic cleaning system. For pipe size not shown in the table other combinations of bypass lines or reducers can be incorporated into the design.

Prism cleaning options: High pressure fluid or steam cleaning system, Ultra sonic cleaning system.

For more information, contact: Schmidt + Haensch GmbH & Co., Waldstraße 80-81, 13403 Berlin, Germany, Phone: + 49 (0 30) 417072-0, Fax: + 49 (0 30) 417072-99, ISO 9001: 2015.