- Industry / Applications
Vaisala K-Patents Process Refractometers are commonly used to determine the concentration of dissolved solids by making an optical measurement of a solution’s refractive index (nD).
Vaisala K-Patents refractometers sensor measures the refractive index nD and the temperature of the process medium. The measurement is based on the refraction of light in the process medium, i.e. the critical angle of refraction using a yellow LED light source with the same avelength (580 nm) as the sodium D line (hence nD.).
The output of the transmitter is a 4 to 20mA DC output signal proportional to process solution concentration, liquid density, Brix or other scale that has been selected for the instrument. Process data can also be downloaded to a computer via an Ethernet cable.
Vaisala K-PATENTS PRODUCTS
Vaisala K-PATENTS® General Type Process Refractometer PR-43
A general industry refractometer and a user selectable graphical user interface for pipe and vessel installations in industrial applications. The refractometer models range from compact probe for small pipeline and bypass lines to rugged heavy-duty long probe versions for large, main processing line, vessel and reactor installations either directly with Flange or Sandvik coupling process connection, or via a large variety of cost-effective and easy to mount flow cell options. Special wetted parts materials available. Non-incendive (Ex n) and intrinsic safety (Ex ia) approvals available for hazardous area installations.
Vaisala K-PATENTS® Pharma Refractometer PR-43-PC
Compact refractometer and user selectable graphical user interface for hygienic installations. Optional laboratory test cuvette for off-line laboratory testing and validation. A3, Certified by EHEDG.
Vaisala K-PATENTS® Sanitary Refractometer PR-43-A
Compact or probe refractometer and user selectable graphical user interface for hygienic installations. A3, Certified by EHEDG.
Vaisala K-PATENTS® General Type Process Refractometer PR-23
A general industry refractometer for large pipe sizes and vessel installations, a general industry compact refractometer for the small pipeline and bypass line applications, a heavy-duty refractometer for chemically aggressive liquids in large-scale production and in large pipe sizes and a compact refractometer for chemically aggressive solutions and ultra-pure fine chemical processes. Special wetted parts materials available. Non-incendive (Ex n) and intrinsic safety (Ex ia) approvals available for hazardous area installations.
Vaisala K-Patents® Refractometer PR-23-AC
Compact refractometer and Indicating transmitter for pharmaceutical manufacturing processes. Optional laboratory test cuvette for off-line laboratory testing and validation. For hygienic installations in small pipe line sizes of 2.5 inch and smaller. A3, Certified by EHEDG.
Vaisala K-PATENTS® Sanitary Probe Refractometer PR-23-AP
For hygienic installations in large pipes, tanks, crystallizers and kettles and for higher temperatures up to 150°C (300 °F). Installation through a 3A Sanitary clamp. A3.
Vaisala K-PATENTS® Process Refractometer PR-23-GP
For large pipe sizes and vessel installations. Installation through a flange or clamp connection. Also for applications, such as syrup evaporation, where insufficient flow velocity or sticky medium may require the use of automatic prism cleaning. Area classification Zone 2 (Class I, Div. 2); area classification for Intrinsically safe PR-23-GP-IA Zone 0, Zone 1.
Vaisala K-PATENTS® Sanitary Refractometer PR-23-A
Compact or probe refractometer and Indicating transmitter.
Vaisala K-PATENTS® Compact Process Refractometer PR-23-GC
A general industry compact refractometer for the small pipeline and bypass line applications. Installed in the process either directly in a pipe elbow by a Sandvik coupling connection or in a straight pipe via a Wafer flow cell or a Pipe flow cell. Economical option when higher alloys and special wetted parts materials are required. Intrinsically safe and hazardous area certification is provided for hazardous areas.
Vaisala K-PATENTS® Sanitary OEM Refractometer PR-33-AC
The sensor is angle mounted on the outer corner of the pipe bend directly or through a flow cell or a sanitary clamp. The sensor can also be mounted with a Varivent® connection. A3.
Vaisala K-PATENTS® SeedMaster SM-3 for Multiparameter Sugar Crystallization Monitoring and Automatic Seeding
A unique third generation crystallization transmitter and seeding device to be used with the K-Patents Process Refractometer. The SM-3 allows for accurate in-line and real-time monitoring of supersaturation and crystal content over the complete process of crystallization, and implementation and control of automatic or manual seeding."
Biochemical & PharmaceuticalChemical & MiscellaneousCorn SweetenerFood & BeverageFood OEMOil Refining & PetrochemicalPulp & PaperMetal Machining & MiningSugar