While small and compact in size, the versatile Vaisala Polaris PR53GC compact process refractometer is for the chemical and other industries for concentration measurements, including the most aggressive chemicals. Optional cooling cover is available for processes where extreme temperatures and pressures are common.
The instrument is ready to be used out-of-box, no need to convert anything on site. Choose your concentration curve from Vaisala’s library of over 500 options, and start your measurement with factory pre-installed concentration curve.
Special grade materials are available, which allow the product to be used in with aggressive chemicals; Alloy 20 and Hastelloy C-276 for sulphuric acid and other applications.
Our wide range of process refractometer material and process connection options are designed to match and fit different process conditions, materials and connections without creating hazards with unsuitable material combination.
Vaisala’s application base for chemical industry is astonishing, currently we offer over 500 different concentration curves, and the library is ever growing. Start your measurement with factory pre-installed concentration curve, just install and enjoy accurate measurements.
The measurement is based on optical measurement of the refractive index (RI). The RI can be measured from practically any liquid or slurry, and it is sensitive to dissolved material. Bubbles, particles or color do not affect the measurement.
The process refractometers can be connected to Vaisala Indigo520 transmitter to expand features, including data storage, graphical interface, analog and digital interface.
For harsh conditions and corrosive chemicals - drift-free, recalibration-free real-time measurement for unbeaten final product quality. Discover application examples in our application notes.
For long probe option, visit
Processing industries often handle liquids which need to be measured for product quality assurance. For comprehensive quality control, analysis of the liquid concentration is needed at different steps of the manufacturing process.
This video illustrates how an inline refractometer and a Coriolis meter behave when there are air or gas bubbles in the measured liquid.
Download this eBook to benefit from a general overview as well as individual case examples examining different elements of application control in the chemical and textile fiber industry.
How chemical plants and petroleum refineries can optimize loading and discharge operations and deliver the highest quality chemicals using Refractive Index technology?
Maintenance and optimization
Commissioning and start-up
Global technical support
Engineer to order
eLearning and hands-on training services
Interested to receive more information on a specific application or product? Drop us a line, and we'll get back to you!