Vaisala Polaris™ process refractometer product family
The pioneering optical inline process refractometer for liquid measurements
Ignite the full potential of your process control with the pioneering optical inline process refractometer Vaisala Polaris. The robust instruments optimize manufacturing processes, enhance productivity, and save resources, energy, and time in various industries and hundreds of applications.
Uplift your horizons and step into the bright new future of reliability with Vaisala Polaris process refractometers.
Success measured in a flash
Vaisala Polaris process refractometer family sheds new light on what is possible in liquid measurements. The robust instrument family provides reliable and maintenance-free liquid concentration measurements.
Vaisala Polaris process refractometers
Vaisala Polaris™ PR53AC Process Refractometer
For food, beverage, dairy, brewery, and pharma industries
Measure Brix and other concentrations inline accurately and in real time. Pipeline installation.
By choosing Vaisala Polaris PR53AC sanitary compact process refractometer you get a reliable, modern and modular product platform that is safe to use in food and beverage manufacturing, has 3-A Sanitary and EHEDG certifications and meets all hygienic demands.
The product works in every process condition from stable to demanding, in high process temperatures, and in sticky processes. It is also compatible with clean-in-place (CIP) and sanitation-in-place (SIP) systems. Connectivity options include mA, HART, and Modbus RTU as a standard.
- 3-A Sanitary and EHEDG certified
- Full measurement range
- Always accurate, no drift
- Customizable product
- Easy installation, easy and low maintenance
- Outstanding durability
- 3-A Sanitary and EHEDG certified
- Full measurement range
- Always accurate, no drift
- Customizable product
- Easy installation, easy and low maintenance
- Outstanding durability
Vaisala Polaris™ PR53AP Process Refractometer
For food and beverage industries, and OEMs
Measure Brix and other concentrations inline accurately and in real time. Tank, kettle, cooker, and vessel installation.
By choosing the long probe Vaisala Polaris PR53AP sanitary probe process refractometer you choose to buy a reliable, modern and modular product platform that is safe to use in food and beverage manufacturing, has 3-A and EHEDEG certifications and meets all hygienic demands.
The PR53AP model is suitable to use in high heat, with scrapers and mixers and in sticky process conditions. It is also compatible with clean-in-place (CIP) and sanitation-in-place (SIP) systems. Connectivity options include mA, HART, and Modbus RTU as a standard.
Vaisala Polaris™ PR53GC Process Refractometer
For chemical industry
Measure concentrations of acids, alkaline solutions, alcohols, hydrocarbons, solvents and various other solutions. Pipeline installation.
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.
- For the most aggressive chemicals
- Material options to select from
- Widest concentration curve library
- Always accurate, no drift
- Plug & play to Indigo
- Easy mounting
Vaisala Polaris™ PR53SD Process Refractometer
For pulp & paper industry
Measure Total Dissolved Solids and other concentrations. Installation positions to fiberline, brown stock washing, evaporation, black liquor firing, slaker, and lime operations.
The Vaisala Polaris PR53SD Process Refractometer model is for the toughest process conditions in the pulp industry, measuring black liquor, green liquor, brown stock washing and other liquid concentrations in the fiber and chemical recovery lines.
Stable and reliable measurement is in our core, and the process refractometer is retractable for service without process shutdown, minimizing downtime in the measurement. Therefore, the PR53SD instrument is for the critical and safety measurements in pulp mills.
The modern, brand-new design on the SAFE-DRIVE retractor system enhances safety by integrating the process refractometer and the retractor as one, simple system. This prevents inadvertent errors in use and ensures that the isolation valve is closed before the instrument is removed. The system is easy to operate, consisting of only a few steps to insert or remove the process refractometer from pressurized process line with full operation ongoing.
Unique in the world, Vaisala offers a retractable refractometer with a wash nozzle for green liquor. Same, accurate measurements inline also with high solids concentrations up to 85 % in black liquor.
- Critical and safety measurements in pulp mills
- Measure in all process conditions
- New, safe and simple design for the SAFE-DRIVE retractor
- Total dissolved solids, the only true measurement of organics and inorganics
- Plug & play to Indigo520
- Customizable product
Advanced optical image analysis and diagnostics for prism wash
Advanced optical image analysis and diagnostics help users to quickly analyze wash performance.
Get full data from the latest wash, along with comparable visual information, and adjust wash parameters accordingly. Fast and easy.
- Completely digital system from the sensors to the transmitters.
- Digital signal transmission and microprocessor implemented diagnostics ensure error free operation.
- The system eliminates false alarms, because it reacts only when the level of sol-ids truly falls below the safe limit.
- Easy to operate and clear multi-diagnostic messages.
- K-Patents SAFE-DRIVE® isolation and retractor allow for safe and easy insertion and removal of the refractometer sensor under full process pressure.
- Accidental opening or closing of the isolation ball valve is prevented.
- The retractable prism wash nozzle can be safely removed for a service check.
- Remote monitoring using a standard web browser
Vaisala K‑PATENTS® Digital Divert Control System DD-23
For pulp industry, recovery boiler safety
Vaisala K-PATENTS DD-23 system includes two Polaris PR53SD process refractometers in the main black liquor line, and two indicating transmitters and a divert control unit in an integrated panel.
Vaisala K-PATENTS DD-23 system includes two K-Patents SAFE-DRIVE Refractometer PR-23-SD sensors in the main black liquor line, and two Indicating transmitters and a Divert control unit in an integrated panel. Remote monitoring, and event data logging is via Ethernet.
Vaisala K-PATENTS SAFE-DRIVE Process refractometer sensors are installed with SAFE-DRIVE Isolation valve that allows for safe and easy insertion and retraction of the refractometers under full operating pressure without having to valve off the liquor piping or having to shut down the process. The SAFE-DRIVE Isolation valve contains a steam wash system for automatic prism cleaning. The system contains a SAFE-DRIVE Retractor tool SDR-23 for safe sensor insertion and retraction.
Each refractometer is a completely independent measurement system. Each system sends a separate mA output signal, which can be used by a control system or a DCS. The DD-23 system is completely microprocessor controlled. The digital signal transmission and microprocessor implemented diagnostics ensure error free operation.
Vaisala Polaris™ PR53M Process Refractometer
For chemical and semiconductor industries
Measure hydrochloric acid (HCI), sodium hydroxide, sodium chloride, sulphuric acid, and hydrofluoric acid and other aggressive chemicals directly inline. Installation to ½ inch process line.
Your process can have the most aggressive chemicals and corrosive elements, but we are up for the challenge. The Vaisala Polaris PR53M PFTE-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 NTP-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
- Integrated flow cell and non-metallic wetted parts
- Widest concentration curve library
- Always accurate, no drift
- Plug & play to Indigo
- Customizable product
- For the most aggressive chemicals
- Widest concentration curve library
- Always accurate, no drift
- Non-metallic wetted parts, PTFE‑lined valve-body flow cell
- Plug & play to Indigo
- Customizable product
Vaisala Polaris™ PR53W Process Refractometer
For chemical, metal, and mining industries
Measure sulphuric acid, hydrochloric acid (HCI), sodium hydroxide, hydrofluoric acid, and other aggressive chemicals directly inline. Installation in large production pipelines.
Measure the most aggressive chemicals inline in chemical industry, and in industries, where aggressive reagents are used, such as chemical, biochemical, mining and metal refining. The Vaisala Polaris PR53W Process Refractometer is the perfect choice for large pipelines to measure aggressive chemicals as it has extreme chemical resistance and just plain durability in the harshest environments.
The PR53W process refractometer is mounted in a membrane‑lined valve body, with no metallic wetted parts included. This allows convenient flange mounting to 1 and 2 inch ANSI and DN50 and DN25 flanges.
Indigo520
For process refractometers
Data logging, wash control, settings and measurement parameters, service updates: Vaisala Polaris combined with Indigo520 offers compelling features for all users and are a standard power couple for applications and installation positions with prism wash system.
Vaisala Polaris combined with Indigo520 offers compelling features for all users and are a standard power couple for applications and installation positions with prism wash system.
Access data and different features through the Indigo520, including data logging, wash control, settings, measurement parameters and Indigo service updates to Indigo520.
The Indigo520 for process refractometers offers versatile system connectivity by two selected analog or digital inputs for process refractometers and other Indigo compatible probes, and four configurable analog outputs to alarm relays, and ModBus TCP/IP digital protocol.
- Direct access
- Prism wash control
- Data logging
- Concentration curve management
- All Indigo family instruments at your fingertips
- Software updates for the Indigo520 transmitter
- Accessories: spatter guard