Smart Liquid Analysis Solution from Endress+Hauser

With over 35 years of experience in liquid analysis, Endress+Hauser has established itself as a trusted global partner, delivering precise, stable, and durable analytical measurement solutions across various industries.

The introduction of Memosens – Liquiline technology marks a milestone in the digitalization of liquid analytical measurement, ushering in a new era of reliability, connectivity, and smart maintenance in industrial applications.

Endress+Hauser’s liquid analysis system comprises two core components:

• • Memosens Smart Sensor: Converts measured values into stable digital signals and transmits data contactlessly via inductive coupling, completely eliminating moisture and corrosion issues commonly found in traditional connectors.

• • Liquiline Transmitter: A multi-channel, multi-parameter design capable of simultaneously connecting up to 8 sensors to measure various parameters such as pH, turbidity, dissolved oxygen, chlorine, COD, etc., optimizing costs, saving space, and simplifying system integration.

Liquid Analysis System with Endress+Hauser’s Memosens – Liquiline Technology

1. Memosens – A Digital Breakthrough in Liquid Analytical Measurement

Endress+Hauser’s Memosens technology represents a breakthrough in liquid measurement and analysis. First introduced in 2004 with a pH sensor featuring an integrated microprocessor and memory, Memosens has simplified, enhanced safety, and digitized liquid analytical measurements. Over more than two decades of development, this technology has matured and expanded to cover multiple parameters including pH, ORP, dissolved oxygen (DO), conductivity, chlorine, turbidity, and others.

With the message “Simplify liquid analysis with Memosens technology,” Memosens targets a wide range of industries – from water and wastewater treatment to oil & gas, chemicals, and food & beverage – offering technical features such as:

• • Memosens technology converts analog signals into digital signals directly within the sensor head, transmitting data via an inductive connection between the sensor and the transmitter. Unlike traditional analog measurement technology that relies on direct electrical contacts, this approach completely eliminates the effects of moisture, corrosion, and electrical interference.

• • Memosens sensors are equipped with an intelligent sensor memory that stores calibration information, measurement history, and sensor status, providing optimal support for maintenance and data traceability.

• • Memosens technology enables lab pre-calibration of sensors, allowing for direct field replacement without any disruption to the production process.

Calibration of Memosens sensors in laboratory conditions ensures high accuracy.

The Memosens 2.0 version, launched in 2021, increased data storage capacity by 8 times, supports IIoT, and includes all parameters related to liquid analysis, delivering optimal product productivity and process quality. This development proves that Memosens is not just a technology—but a digital measurement ecosystem that supports plants toward smart and sustainable operations.

The development and innovation journey of Endress+Hauser’s Memosens technology

 Advantages of Memosens Technology

✅ Digital signal transmission with non-contact connection → eliminates issues caused by moisture, corrosion, or electromagnetic interference.

✅ Calibration and diagnostic data stored directly in the sensor (data memory) → facilitates easy maintenance, replacement, and data retrieval.

✅ Safe and reliable even in harsh environments such as chemical plants, water treatment, and food & beverage industries.

✅ Ready for digitization & IIoT – with Memosens 2.0 version, users can connect analytical data to management systems, optimizing monitoring and condition-based maintenance (Predictive Maintenance).

✅ Efficient & cost-saving by reducing downtime, extending sensor lifespan, and improving process quality.

Memosens technology operates unaffected by wet environments.

2. Liquiline – Advanced platform for liquid analysis signal transmission

Liquiline is a next-generation signal transmission platform specifically developed for liquid analysis applications in industrial settings. It serves as the core platform for Endress+Hauser’s modern transmitters, analyzers, and samplers, providing consistent operation, high flexibility, and future scalability.

The Liquiline Transmitter enables fast and secure connection between the sensor and the display unit. With just a simple twist, the Memosens sensor is automatically recognized, transmits stable digital signals, and allows reading of all data stored within the sensor.

Thanks to the Plug & Play feature, installation, replacement, or calibration becomes extremely quick—minimizing downtime and ensuring reliable measurement points.

Liquiline Transmitter product range from Endress+Hauser

 Advantages of Liquiline Transmitter

✅ Unified operation across all devices – easy to use, reduces operational errors.

✅ Automatic sensor recognition, shortening startup and maintenance time.

✅ Multi-channel, multi-parameter connectivity: Supports up to 8 Memosens sensors measuring parameters such as pH, DO, turbidity, chlorine, COD, etc.

✅ Modular flexible design: Easy to expand functionality, saving costs on spare parts inventory.

✅ Built-in webserver integration enables remote monitoring and access to device parameters via a web browser.

✅ Compatible with multiple communication protocols: HART, PROFIBUS, PROFINET, EtherNet/IP, Modbus TCP/RS485 – enabling seamless integration into any process control system (PCS).

✅ Heartbeat Technology: supports online diagnostics, verification, and performance checks, helping to optimize maintenance and ensure compliance with quality standards.

✅ Compact device compatibility: Liquiline Compact – a mini transmitter designed for limited spaces, featuring wireless Bluetooth connection to smartphones or tablets.

✅ Handheld convenience device: Liquiline Mobile – supports flexible on-site measurement and testing.

With over 20 years of successful development and application, Memosens – Liquiline technology is not just a measurement solution – it is a digital platform for liquid analysis processes, contributing to enhanced reliability, quality, and operational efficiency for modern plants.

👉 Choosing Memosens – Liquiline means choosing safety, accuracy, and a smart future.

Let’s explore and apply Memosens together with NK Engineering – the authorized representative of Endress+Hauser in Vietnam – to optimize liquid analysis processes in your business.

Reference: Endress+Hauser Memosens Technology