Comprehensive product range for all analytical parameters
Environmental protection, consistent product quality, process optimization and safety – just a few reasons why liquid analysis is becoming increasingly essential. Liquids such as water, beverages, dairy products, chemicals and pharmaceuticals have to be analyzed day in and day out. We support you in fulfilling all these measuring tasks with application know-how and cutting-edge technologies. Discover our comprehensive portfolio and choose the product best suited to your process needs.
Our excellent portfolio has received Frost & Sullivan's Company of the Year Award for Water Analysis Instrumentation.
Memosens converts the measured value to a digital signal and transfers it to the transmitter without a contacting connection. This video shows how Memosens optimizes process control and maintenance.
The pH-value of a liquid can be calculated using the potentiometric measurement principle. This video shows what it is about and how this measuring principle works.
The conductivity of a liquid can be measured using the conductive or toroidal measuring principles. This video shows what it is about and how these measuring principles work.
Nutrients, metals or carbon components in a liquid can be measured using the colorimetric measuring principle. This video shows what it is about and how this measuring principle works.
This video shows how the unique design and sealing principle of the Cleanfit CPA875 retractable assembly guarantees safe sensor handling and prevents contamination of hygienic processes.
Benefits
From standard sensors to complete measuring stations – we provide cutting-edge technology for every liquid analysis parameter.
Our high-precision instruments help you to increase product yield, improve product quality and ensure process safety.
State-of-the-art communication interfaces and protocols enable you to seamlessly integrate our devices into your processes and plant asset management.
Whether process lab, process or utilities – use our know-how and expertise to optimize your application.
As leading supplier of analytical measuring technology, we support you during the entire product life cycle - everywhere in the world.
Liquid analysis
Our product finder helps you to search for suitable measuring devices, software or system components via product characteristics. Applicator leads you through an individual product selection via application parameters.
Memosens is Endress+Hauser’s digital analytical ecosystem, enabling seamless integration of the widest range of analytical parameters and hardware. Memosens has an inductive sensor connection, guaranteeing secure digital communication of analytical data and the ability to calibrate sensors prior to installation. The Memosens range includes pH, conductivity, disinfection parameters, turbidity, Dissolved Oxygen, and more complex analytical measurements such as nutrients and Chemical Oxygen Demand.
There are several causes for an unstable pH value. After verifying the unstable reading is not a true representation of the sample condition, attention should turn to reliable sample delivery and detailed investigation of the pH analysis loop. Common causes of unstable readings are turbulent sample at the measuring point, poor pH sensor condition, unsuitability of the selected pH sensor for the analysis duty, or continuity issues within an analogue pH loop. Contact our experts for further help.
There are two main approaches to measure conductivity – the conductive approach and the inductive approach. The conductive method has a lower detection limit and is suitable for very pure water applications and above, whereas the inductive method is especially suitable for higher conductivity applications or where risk of sensor fouling is high. Download our Selection Guide for Conductivity Measurement in industrial processes to find out more.
The use of colorimetric methods, particularly the DPD method, for oxidizing biocides such as chlorine, bromine and ozone are well established. These methods are not suitable for continuous monitoring or samples containing significant turbidity or colour. Amperometric probe measurements offer continuous monitoring of a range of disinfection parameters including free chlorine, total chlorine, chlorine dioxide, free bromine and ozone.
Turbidity is caused by the scattering of light by particles suspended in a solution. These particles, or suspended solids, are quantified by two methods – the use of optical light scatter measurement or the use of a gravimetric approach. For individual sample points it is possible to create a linear correlation between turbidity measurement and suspended solids which takes account of the size, shape and light scattering potential of the particles. The Turbimax CUS51D can help...
pH measurement is the most important quality-relevant parameter in industrial processes. Check out our extensive offering of ISFET, enamel or glass pH sensors, transmitters, assemblies and pH buffers.
Conductivity measurement is crucial for process control, product and water monitoring, or leakage detection. Check out our wide range of conductive and toroidal conductivity sensors and transmitters.
Discover our turbidity sensors, total solids sensors, suspended solids sensors and turbidity transmitters for drinking water, process water and wastewater applications in all industries.
Discover our wide range of free chlorine, chlorine dioxide, total chlorine and bromine sensors and transmitters for disinfection of drinking water, reused water and pool water!
Use the Liquiline Mobile CML18 as portable pH meter, ORP, dissolved oxygen or conductivity meter to streamline your processes and optimally connect lab measurements with existing processes.
Discover our oxygen sensors and transmitters for quality assurance and process control in water, wastewater, chemicals, power plants, life sciences, pharma, food & beverage and fish farming.
Browse through our wide range of TOC, COD & SAC analyzers for municipal and industrial wastewater. They measure total organic carbon, chemical oxygen demand and spectral absorption coefficient.
ORP measurement is an effective, low-cost method to determine the oxidizing or reducing properties of a medium. Check out our extensive offering of ORP sensors, transmitters, assemblies and buffers!
Our sludge level sensors and transmitters help you to pump sludge, not water. Check out our portfolio for all sedimentation tanks in wastewater treatment plants, water treatment plants and utilities!
Our nutrient analyzers and sensors help you optimize wastewater treatment processes and keep discharge fees under control. Discover our portfolio for ammonium, nitrate and phosphate analysis and more!
Process photometers enable accurate and reproducible concentration measurement by determining UV absorption, NIR & VIS. Check out our broad offering for life sciences, food, chemical and oil & gas!
Our metal analyzers for water, wastewater and power plants help supply clean water and achieve safe processes. Discover our range of water hardness, iron, aluminum, chromate and sodium analyzers.
Sensors based on microwave transmission ensure reliable and permanent process control in various industries thanks to real-time, maintenance-free inline measurement of total solids.
Memosens: the success of a revolution
Memosens: the success of a revolution
Memosens digital sensors have been synonymous with ease of use and trouble-free operation. Read our case studies and discover how Memosens could revolutionise your process...
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Experts in pH/ORP, conductivity, oxygen, turbidity, chlorine
Sensors, transmitters, assemblies and services for pH/ORP, oxygen, conductivity, turbidity and chlorine measurement
By choosing the Liquiline platform, you’re effectively choosing to spend less money on stock holding, save installation time and gain operational safety!