ACHEMA 2022 - World Forum and Leading Show for the Process Industries

Achema 2022 logo
Messe Frankfurt
Frankfurt am Main, Germany
Industrial Measurements
Life Science
Liquid Measurements

You can find our experts at stand Hall 11-1 stand C76. 

Come and exchange ideas on the latest trends in the chemical, pharmaceutical, biotech and food manufacturing, and energy and environmental industries. Vaisala's experts will be happy to discuss the opportunities provided by accurate data from 

in-line liquid process measurement of

  • liquid concentration and density 

and products and solutions for measuring and monitoring critical environmental parameters such as


Get your ticket at and use the voucher code: A_Me9y3kuc

You will receive your ticket electronically. The voucher code alone does not entitle to entry. You must register and print the ticket.


You can also contact our experts already now.

In-line measurement of liquid concentration and density directly in chemical process

Vaisala K-PATENTS® process refractometer is designed to measure and indicate inline liquid concentration of almost any chemical or compound.

The refractometer can be installed cost-efficiently in the main processing line, bypass line or vessel to control the raw and in-process materials in order to extract their maximum value and achieve high quality end products. The performance of all types of chemical refining, manufacturing, and quality-control operations can be dramatically improved with Vaisala’s refractive index measurement technology – whether they are in continuous or batch processes. 

Unlike intermittent sampling, continuous monitoring provides instant feedback on changes in the process, and this data can enable real-time and precise process control of the common chemical industry operations, e.g.:

  • Reactor, reaction degree, and endpoint determination
  • Evaporation
  • Dissolving tank or vessel
  • Dilution, mixing or blending
  • Solid-liquid extraction
  • Absorbers and wet scrubbers
  • Ion exchangers
  • Distillation
  • Interface detection and product identification of product-to-product interfaces in loading/ unloading
  • Quality control

Using the Vaisala concentration measurement technique and its easy integration into plant engineering systems enables significant improvements in the plant capacity, the process safety or product yields.

Installed refractometer

Refractive index technique designed for harsh chemical environments and applications

Vaisala K-PATENTS® process refractometer offers accuracy, repeatability and reliability even in the most extreme environments that can be corrosive or abrasive, subject to chemically aggressive solutions, extreme temperatures, pressures, vibration or contamination, humidity and dust, or any combinations of these factors.

  • Designed to Pressure Equipment Directive PED 97/23/EC and ASME Section VIII Division 1 - Pressure Vessels
  • Selection of different IP codes (IEC 60529) and NEMA ratings that withstand various harsh conditions and outside use.
  • Special wetted parts materials ranging from stainless steel and higher alloys to PFCF or PTFE (Teflon®) for harsh environments and chemically aggressive process fluids.
  • Intrinsically safe and hazardous area certification for hazardous areas
MI with user

Vaisala capabilities and services for the chemical industry applications

Vaisala is specialized in in-line process refractometers and optical process analyzers for refractive index-based concentration measurements. Vaisala instruments range from compact probe models for small pipeline and bypass lines to rugged heavy-duty long probe versions for large pipeline, vessel and reactor installations. When standard models are not sufficient to fulfil requirements, please consult the factory for engineered solutions, e.g. special wetted materials or custom mounting accessories and process connections.

Vaisala also provides full range of start-up, commissioning and technical support services to our customers. Our industry expertise includes supply of extensive vendor documentation that is tailored and applied to each contract and client specific data. Local authorized distributors have extensive applications knowledge and they can help to specify the correct instrument for each application requirements.

Applications in the chemical industry

The performance of all types of refining, manufacturing and quality control operations can be dramatically improved with our liquid concentration and density measurement technology.
Download our application notes for more information.

Chemicals & Allied Products related products

Can't find your application?

Can't find your application?

Only some examples of our refractometer applications are listed here. There are still hundreds more!

Our application experts will help you. Tell us a bit more by filling the form or contact us.

Liquid concentration measurement

Vaisala offers a wide range of products tailored to liquid measuring needs of different industries. Learn more about the refractometer technology and its applications, and visit the library of product related assets.

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Indigo Family in a nutshell

The new Vaisala Indigo family takes industrial measurement to a new level. Interchangeable probes, smart transmitters and Vaisala Insight PC software can help you streamline your processes and make more informed and timely decisions. 

The new Indigo family is made to last. It has the ability to perform even in the harshest and most extreme conditions. Year after year. ​With the same Vaisala quality that is present in safekeeping precious works of art in Louvre and the Lascaux cave and in extreme conditions on Mars and in Antarctica


Indigo transmitter

Indigo500 Series Transmitters for Vaisala Smart Probes

The Vaisala Indigo500 transmitter with dual-probe and multi-parameter support is a host device for Vaisala Indigo-compatible, stand-alone smart probes. The transmitter offers multiple additional features to the Indigo probes.

Indigo200 Transmitters

Indigo200 Series Transmitters for Vaisala smart probes

Vaisala Indigo200 Series transmitters are host devices for Vaisala's intelligent, stand-alone probes. The transmitter allows for easy evaluation and visualization of data, also wirelessly.

Insight PC Software for Easy Access

Insight PC Software

The Vaisala Insight PC Software gives quick access to the configurations and data of Indigo family probes.Use as a simple service interface for easy set-up, diagnostics, and field calibration and adjustment.

DMP5 for High Temperature Applications <180 °C

Vaisala DRYCAP® Dew Point and Temperature Probe DMP5 is designed for in-line humidity measurement in industrial drying applications with high temperatures and a wide dew point range. 

DMP6 for Very High Temperature Applications <350 °C

Vaisala DRYCAP® Dew Point and Temperature Probe DMP6 is designed for in-line humidity measurement in industrial drying applications with very high temperatures and a wide dew point range.

DMP7 for Remote Installations in Tight Spaces

Vaisala DRYCAP® Dew Point and Temperature Probe DMP7 is made for tight spaces and low-humidity applications.

DMP8 for Pressurized Pipelines <40 bars

Vaisala DRYCAP® Dew Point and Temperature Probe DMP8 is designed for industrial low-humidity applications with pressure up to 40 bars.


HMP3 for General Purpose Humidity and Temperature Applications

Vaisala HUMICAP® Humidity and Temperature Probe HMP3 is a general-purpose probe designed for processes with moderate humidity and temperature levels.

MMP8 for Continuous Online Measurement​

Vaisala HUMICAP® Moisture in Oil Probe MMP8 enables fast and reliable measurement of moisture in oil.

Vaisala HMP4 for measuring humidity in high pressures

HMP4 for High Pressures

Vaisala HUMICAP® Humidity and Temperature Probe HMP4 is designed for high-pressure applications such as breathing air or compressed air systems in maritime.

HMP5 for High Temperatures

HMP5 for High Temperatures

Vaisala HUMICAP® Humidity and Temperature Probe HMP5 is designed for high-temperature applications such as baking ovens, pasta dryers and industrial drying kilns.

HMP7 for High Humidities

HMP7 for High Humidities

Vaisala HUMICAP® Humidity and Temperature Probe HMP7 is designed for applications which involve constant high humidity or rapid changes in humidity such as drying and test chambers, humidifiers and meteorology.

HMP8 for Pressurized Processes

HMP8 for Pressurized Processes

Vaisala HUMICAP® Humidity and Temperature Probe HMP8 is designed for pressurized applications such as compressed air systems and refrigerant dryers.

HMP9 - Humidity & Temperature measurement Probe

HMP9 for Rapidly Changing Environments

The Vaisala HUMICAP® Humidity and Temperature Probe HMP9 is designed for easy installation in rapidly changing environments where a fast response time, measurement performance, and chemical tolerance are essential. The compact size enables installation even in tight spaces, with the probe head only 5 mm (0.2 in) in diameter.

GMP251 for %-level Measurements

GMP251 for %-level Measurements

The Vaisala CARBOCAP® Carbon Dioxide Probe GMP251 is an intelligent, stand-alone, %-level probe for measuring CO2 in application such as life science incubators, cold storages, and fruit & vegetable transportation.

GMP252 for ppm-level Measurements

GMP252 for ppm-level Measurements

The Vaisala CARBOCAP® Carbon Dioxide Probe GMP252 is an intelligent, stand-alone, ppm-level probe for measuring CO2 in agriculture, refrigeration, greenhouses and demanding HVAC applications.

HPP272 for Bio-Decontamination Processes

HPP270 Series for Bio-Decontamination Processes

The Vaisala PEROXCAP® HPP270 series includes an intelligent 3-in-1 measurement probe for vaporized H2O2 bio-decontamination in applications such as isolators and rooms and a basic H2O2 probe HPP271.

TMP1 for Temperature Measurement

TMP1 for Temperature Measurement

Vaisala Temperature Probe TMP1 is designed for demanding temperature measurements in industrial applications such as pharmaceutical industry and calibration labs.

Watch the video

Vaisala viewLinc continuous monitoring system demo

Learn More About viewLinc Monitoring



Vaisala Jade Smart Cloud is a cloud-based data service for monitoring drying conditions, concrete, and ambient moisture on construction sites. The service consists of data loggers with humidity and temperature probes, one or more access points, and a software license that gives access to the cloud where data can be viewed remotely. Jade Smart Cloud is also designed for the borehole method where the humidity probe is left in the borehole until an equilibrium state has been formed and humidity values can be read. Using Jade Smart Cloud allows you to check the data on your mobile phone, tablet or PC without having to travel to the measurement location.