Vaisala Polaris™ PR53GC and GCEX Compact Process Refractometers for ordinary and explosive areas

Measure concentrations of acids, alkaline solutions, alcohols, hydrocarbons, solvents, and various other solutions directly in pipeline, in production transport, and quality control in chemical, and other industries.

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.

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Datasheet

EX Datasheet

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.

Key benefits

For the most aggressive chemicals

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.

Material options to select from

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.

Widest concentration curve library

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.

Always accurate, no drift

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.

Plug & play to Indigo

The process refractometers can be connected to Vaisala Indigo520 transmitter to expand features, including data storage, graphical interface, analog and digital interface.

Easy mounting

Special material guarantee durability in challenging process conditions, flow cells for easy mounting with wash option where applicable.

Maximum productivity and safety in hazardous areas

The industry-leading Vaisala Polaris process refractometers offer Ex-certified product versions for hazardous areas.
Depending on selected product option, the refractometers are designed to be installed in either
IECEx/ATEX Zone 0/1 (North America Class 1 Division 1) or Zone 2 (Class 1 Div 2).

The Polaris Ex-versions are Indigo520 compatible to secure maximum productivity.
The Indigo520, and the associated IS equipment in case of Zone 0/Class 1 Div 1, is placed in the safe area.

Inline chemical concentrations measurement

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.

Go to applications

$The Vaisala Polaris PR53GP probe process refractometer: concentration measurement for sugar, chemical, and petrochemical industries.$

Long probe process refractometer

For long probe option, visit

Vaisala Polaris™ PR53GP Probe Process Refractometer

Indigo80 for Vaisala Polaris™ process refractometers

Discover the unmatched combination of Vaisala Indigo80 and Polaris™ process refractometers. With the Indigo80, a screen on the go, configure and calibrate probes without downtime, log data from individual probes for speedy diagnosis, and identify potential maintenance needs easily.

Learn more about the Indigo80