Measure safely and accurately the concentrations of aggressive chemicals: hydrochloric acid (HCI), sodium hydroxide (NaOH), sodium chloride (NaCl), sulphuric acid (H₂SO₄), and hydrofluoric acid (HF)
Your process can have the most aggressive chemicals and corrosive elements, but we are up for the challenge. The Vaisala Polaris PR53M PTFE-body process refractometer is your choice for the chemical and semiconductor industries to measure aggressive chemicals as it has extreme chemical resistance and just plain durability in the harshest environments.
The integrated ultra-pure PTFE flow cell has no metallic wetted parts, making it fully suitable to be in contact with aggressive chemicals. The PR53M mounts into ½ inch process line with a standard NPT-threaded connection.
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.
For the most aggressive chemicals
Extreme chemical resistance and just plain durability in the harshest environments.
Integrated flow cell and non-metallic wetted parts
The integrated ultra-pure PTFE and sapphire flow cell are suitable to be used in the most demanding environments. Non-metallic wetted parts together with the flow cell ensure that no corrosive elements are introduced to the process.
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.
Customizable product with our Engineer to Order service
In addition to wide standard process connection offering, Vaisala offers an opportunity to customize the product to meet specific processing needs whether it is a special process connection, wetted parts material, custom size flanges or custom type enclosure for transmitters (Ex d/Ex p).
Contact us for options!
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.
Semiconductor manufacturing
Vaisala offers process monitoring and fault detection in real-time for wet chemistries. Inline, real-time measurement solutions help to reduce scrap and react quickly for process disturbances. Explore our full offering and downloadable application notes.
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.
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.
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