The Liquiline To Go CYM291 is an Ex-certified multiparameter handheld device from Endress+Hauser, designed for the measurement of pH/ORP, conductivity, dissolved oxygen, and temperature directly at the sampling point, even in hazardous areas. Featuring Memosens digital technology and a robust shock-proof housing, it enables reliable grab sample analysis without the risk of sample contamination.

The device supports measurement of pH, ORP, conductivity, conductivity trace, oxygen, oxygen trace, and temperature, enabling comprehensive liquid analysis with a single handheld instrument. Using the same Memosens sensors for both process and grab sample measurements guarantees full data consistency, eliminating discrepancies that can arise when different measurement technologies are used. The CYM291 holds international explosion-protection approvals including ATEX (II 1 G Ex ia IIC T4/T3 Ga) and IECEx (Ex ia IIC T4/T3 Ga), making it suitable for use in hazardous areas up to Zone 0.

The handheld features hot plug & play capability with Memosens sensors. Pre-calibrated sensors enable rapid changes from one parameter to another, and the device automatically detects the connected sensor and switches to the appropriate measured variable. Calibration data stored in the sensor head remains available when the sensor is connected to another Memosens-capable device, ensuring seamless workflow across different measurement points.

The CYM291 uses Sensoface, an icon-based tool that provides quick information on sensor condition. The display shows one of three “smiley” faces to represent sensor condition during measurement and after calibration, with status messages providing hints when condition deteriorates. The device continuously checks Memosens sensors and triggers an alarm if any error occurs.

The device features a shock-proof housing with IP66/67 ingress protection, constructed of PA12 GF30 (silver-gray RAL 7001) and TPE (black), with dimensions of approximately 132 x 156 x 30 mm (5.2 x 6.14 x 1.18 inches). The LCD STN 7-segment display shows three lines with icons. The data logger stores 5,000 measurement results with date and time. Temperature input supports 2 x Ø 4 mm for separate temperature sensor with Pt1000 (NTC30 measuring range), covering –20 to +120°C for NTC30 and –40 to +250°C for Pt1000. Power supply is 4 x AA batteries, with interfaces including 1 x micro USB-B, 1 x M8 socket (4-pin), 2 x Ø 4 mm sockets, and 1 x M12 8-pin.

The Liquiline To Go CYM291 delivers reliable, high-integrity multiparameter measurement for hazardous area applications, combining Ex certification, Memosens digital technology, and robust construction with the convenience of hot plug & play operation and full data consistency between process and grab sample measurements.

The CYK20 is a flexible digital measuring cable from Endress+Hauser, designed as a Memosens laboratory cable for reliable connection of digital sensors to handheld devices and software. It features an inductive plug-head coupling that is insensitive to water and humidity, ensuring completely safe and reliable signal transmission.

The cable is specially designed for laboratory use, offering flexible and easy handling for fast connection of sensors across various parameters. It connects all sensors with a Memosens plug-in head to the Liquiline Mobile CML18 handheld, the Memosens Converter CYM17, and the Memobase Plus CYZ71D software via the Memolink terminal box. The CYK20 is suitable for a wide range of parameters including pH/ORP, dissolved oxygen (amperometric), conductive conductivity, and disinfection measurements.

The CYK20 provides maximum process safety through non-contact inductive digital signal transmission. The inductive coupling eliminates contact corrosion and interference potentials, guaranteeing an absolutely watertight and reliable connection. This transmission method is not influenced by moisture, EMC fields, or corrosion, ensuring dependable performance in demanding laboratory environments.

The cable features an easy-to-handle bayonet coupling with no open contacts, making it resistant against humidity. The cable is constructed of PEEK and TPE materials, with a diameter of 4.5 mm (0.18 inch) and 2×2 twisted pair cores. Available lengths include 1.5 m and 3 m (4.9 ft and 9.8 ft). The M8 or M12 plug connects to the transmitter or handheld device.

The CYK20 holds international explosion-protection approvals including IECEx Ex ia IIC T6 Ga and ATEX Ex II 1G Ex ia IIC T6 Ga, making it suitable for use in hazardous areas. It is rated IP65 for ingress protection.

The CYK20 digital measuring cable delivers reliable, safe, and convenient connectivity for Memosens sensors in laboratory and field applications, combining flexible handling, non-contact inductive transmission, and hazardous area certification.

The CPY20 is a line of highly precise pH buffer solutions from Endress+Hauser, designed for the calibration and adjustment of pH electrodes across all industries. Available in two quality levels, these buffers ensure accurate and reliable pH measurement in both routine and high-precision applications.

The CPY20 portfolio includes two distinct quality levels. The Certified Reference pH Buffer Solutions are available at pH 4, 7, and 10 for regulated industries requiring the highest metrological traceability. These are produced and bottled in a DAkkS-accredited laboratory and are traceable to NIST (USA) and PTB (Germany) standard reference materials. The Technical pH Buffer Solutions are available at pH 2, 4, 7, 9, 9.2, 10, and 12 for routine calibration and adjustment tasks, offering a typical measurement uncertainty of ±0.02 pH (for values above pH 10: ±0.05 pH).

The buffers are optimized for use with Memobase Plus and Memobase Pro software, all Liquiline series transmitters, and all conventional pH transmitters on the market. Temperature curves for CPY20 buffers are pre-programmed in all Liquiline series transmitters, simplifying sensor calibration and adjustment while reducing maintenance effort. This pre-programming eliminates manual temperature compensation and minimizes the risk of calibration errors.

All preservatives used in the buffers are FDA-listed, ensuring the highest product safety for FDA-supervised processes. Readily accessible, uniform certificates for all CPY20 pH buffers simplify audit trails and improve the reliability of Standard Operating Procedures (SOPs), making them suitable for use in regulated environments including pharmaceutical, life sciences, and food and beverage industries.

The buffers are available in multiple volumes to suit different usage requirements: 18 ml single-use sachets, 250 ml bottles, 1000 ml bottles, and 5000 ml canisters. Color coding simplifies identification: pH 4 is red, pH 7 is green, and pH 9.2 is blue.

The CPY20 pH buffer solutions deliver the accuracy, traceability, and documentation required for reliable pH calibration across all industries, from routine laboratory measurements to highly regulated pharmaceutical and life sciences processes.

The Memosens CPL51E, CPL53E, CPL57E, and CPL59E are a family of digital pH sensors from Endress+Hauser, designed for laboratory analysis and random sampling in the field. Featuring Memosens 2.0 technology and application-specific designs, they deliver reliable, highly accurate pH measurement with true plug-and-play capability.

The sensors are available in four application-specific versions. The CPL51E is a robust sensor with a plastic shaft, suitable for drinking water, wastewater, and process water applications. The CPL53E is a versatile all-rounder for standard laboratory applications, offering a very fast response time. The CPL57E features a salt storage reference system for drift-free measurement in pure and ultrapure water, including boiler feedwater. The CPL59E is designed for demanding media in the chemical and process industry, featuring a PTFE junction and ion trap for strong oxidizing media.

All sensors operate on the potentiometric measuring principle with a gel-filled reference system that requires no electrolyte refilling, ensuring maintenance-free operation and long service life. The measuring range covers pH 0 to 14, with an application range of pH 1 to 12 for most models. Process temperature ranges vary: –5 to +80°C for the CPL51E, –5 to +100°C for the CPL53E and CPL57E, and 0 to +135°C for the CPL59E. All models are designed for 1 bar pressure and are not intended for continuous measurement in process.

The Memosens 2.0 digital technology provides true plug-and-play capability. Simply connect the sensor and measurements can begin immediately. Measured values, calibration data, and sensor history are stored directly in the sensor head, enabling status checks and supporting GLP requirements. The inductive Memosens coupling is insensitive to moisture and corrosion, ensuring secure data transmission in demanding environments. All sensors are supplied pre-calibrated and are directly ready for use.

Each sensor features an integrated NTC 30kΩ temperature sensor for automatic temperature compensation, ensuring accurate pH readings. The tamper-proof data storage unit includes serial number and calibration history information, supporting quality management requirements and traceable sensor calibration.

The sensors have a diameter of 12 mm and shaft length of 120 mm, with IP68 ingress protection. They are suitable for a variety of applications including drinking water, wastewater, process water, pure and ultrapure water, boiler feedwater, and demanding chemical and process media.

The Memosens COL37E is a digital optical oxygen sensor from Endress+Hauser, designed for laboratory analysis and random sampling in the field. Featuring Memosens 2.0 technology and a fast-responding optical measuring principle, it enables quick and reliable checks of oxygen levels in aeration tanks, fish farms, and surface water.

The sensor operates on the optical (luminescence-based) measuring principle, requiring no electrolyte and no polarization time, making it simple to operate and maintain. Its flow-free C-shaped optical cap design eliminates interference from air bubbles, ensuring stable and accurate measurements even in demanding conditions. The sensor delivers a response time (t90) of less than 20 seconds from air to nitrogen, providing rapid measurement results. The measuring range covers 0 to 330 %SAT (0 to 20 mg/l).

The Memosens 2.0 digital technology provides true plug-and-play capability. Simply connect the sensor and measurements can begin immediately. Measured values, calibration data, and sensor history are stored directly in the sensor head, enabling status checks and supporting GLP requirements. The inductive Memosens coupling between the sensor and the mobile CML18 handheld device is insensitive to moisture and corrosion, ensuring secure data transmission in demanding environments. All sensors are supplied pre-calibrated and are directly ready for use.

The sensor features a built-in Pt1000 temperature sensor for automatic temperature compensation and registration, ensuring accurate oxygen readings. The tamper-proof data storage unit includes serial number and calibration history information, supporting quality management requirements and traceable sensor calibration.

The COL37E is suitable for a variety of applications including surface water, wastewater, and process water monitoring. It can be used for online checks of measuring loops, sample analysis in both laboratory and field settings, and measurements at process points requiring regular inspection. The sensor has a diameter of 12 mm (0.47 inch) and shaft length of 120 mm (4.72 inch), with IP68 ingress protection. The process temperature range is –5 to +60°C (23 to 140°F) at 1 bar pressure, and it is not intended for continuous measurement in process. The sensor body is constructed of stainless steel.

The Memosens CLL47E is a digital four-electrode conductivity sensor from Endress+Hauser, designed for laboratory analysis and random sampling in the field. Featuring Memosens 2.0 technology and a wide measuring range, it delivers reliable, highly accurate measurements with fast response times.

The sensor operates on the conductive measuring principle using four platinum electrodes, covering a broad conductivity range from 5 μS/cm to 200 mS/cm. This wide range enables analysis of many different samples with a single sensor. The solid platinum electrodes provide easy cleaning and a very long lifetime, ensuring reliable performance over extended periods. The sensor features a seamless, gap-free construction that simplifies cleaning procedures and reduces maintenance effort.

The Memosens 2.0 digital technology provides true plug-and-play capability. Simply connect the sensor and measurements can begin immediately. Measured values, calibration data, and sensor history are stored directly in the sensor head, enabling status checks and supporting GLP requirements. The inductive Memosens coupling between the sensor and the mobile CML18 handheld device is insensitive to moisture and corrosion, ensuring secure data transmission in demanding environments. All sensors are supplied pre-calibrated and are directly ready for use.

The sensor features a built-in Pt1000 temperature sensor for automatic temperature compensation, ensuring accurate conductivity readings. The tamper-proof data storage unit includes serial number and calibration history information, supporting quality management requirements and traceable sensor calibration.

The CLL47E is suitable for a variety of applications including drinking water, cooling water, wastewater, and process media analysis such as cleaning solutions. It can be used for online checks of measuring loops, sample analysis in both laboratory and field settings, and measurements at process points requiring regular inspection. The sensor has a diameter of 12 mm (0.47 inch) and shaft length of 120 mm (4.72 inch), with IP68 ingress protection. The process temperature range is 0 to 100°C (32 to 212°F) at 1 bar pressure, and it is not intended for continuous measurement in process.

The Zero-Point Gel COY8 is a ready-to-use gel from Endress+Hauser, designed for the verification, calibration, and adjustment of dissolved oxygen and disinfection sensors. It provides a reliable and convenient method for determining the true zero point of sensors measuring parameters such as oxygen, free chlorine, total chlorine, and chlorine dioxide. This improves the reliability and accuracy of measuring points, helping to enhance product quality and yield.

The gel is 100% oxygen-free and comes ready to use directly from the bottle, requiring no additional chemicals or manual preparation. This ready-made format saves time and improves workplace safety by removing the need for plant personnel to handle chemicals manually. Once opened, the gel remains usable for up to 24 hours, allowing for multiple uses in a single day.

A single tool serves for validation, calibration, and adjustment of sensors both in the field and in the laboratory, regardless of sensor manufacturer. The COY8 is available in different bottle sizes for various sensor diameters (12 mm, 25 mm, and 40 mm). It is suitable for use across multiple industries, including Life Sciences (fermentation processes), Food & Beverage (inertization), Power & Energy (steam/water cycle), Drinking Water (distribution networks), and Utilities (water treatment).

The COY8 is a key tool for maintaining sensor performance and ensuring the reliability of critical measurement points in various industrial processes.

Memobase Plus CYZ71D is a PC-based multichannel multiparameter software from Endress+Hauser, designed to centralize the measurement, calibration, and documentation of digital Memosens sensors. It transforms a standard computer into a high-performance measuring workstation for up to four parallel Memosens sensors, managing the complete life cycle of pH, ORP, conductivity, and oxygen sensors with robust digital technology.

The software supports end-to-end documentation of sensor life cycle data, including calibration history with reference solution information, sensor utilization data such as total operating hours and extreme condition hours, and assignment of sensors to specific measuring points. This full traceability supports compliance with GLP, GMP, and FDA 21 CFR Part 11 regulations.

Key functional benefits include advanced diagnostics with “Ready for next batch” indication, which evaluates sensor performance and visualizes sensor status to prevent out-of-spec sensors from being returned to the process. The software enables true multipoint sensor calibration and adjustment with enhanced calculations and statistics for the most accurate measurements. Easy buffer management allows scanning in lot numbers and expiry dates via barcode.

Memobase Plus is available with modular licensing options: a Basic license (measure, calibrate, document), Advanced Diagnostics (for multipoint calibration and condition monitoring), and a Pharma Compliance license (for advanced user administration and audit trail). A demo version is available for testing without connecting real sensors.

The complete measuring system consists of a PC or Windows-based tablet with the Memobase Plus software, a MemoLink sensor terminal box (connection to PC with Ex barrier), Memosens laboratory or process cables, and Memosens sensors. The MemoLink box is rated IP65 and ATEX II (2)G (Ex ia Gb) IIc, enabling connection of Ex- and non-Ex sensors alternately without losing sensor approval. The software runs on Windows 7 (SP1) or Windows 10 with at least 1 GHz processor, 3 GB free hard disk space, and 1 GB RAM.

The Liquiline Mobile CML18 is a versatile multiparameter handheld device from Endress+Hauser, designed for mobile pH/ORP, conductivity, dissolved oxygen, and temperature measurement across a wide range of industries. Featuring digital Memosens technology and secure Bluetooth connectivity, it bridges the gap between field, laboratory, and process measurements.

The device supports a comprehensive range of measurement parameters through digital Memosens sensors with inductive coupling, including pH, ORP, conductivity (conductive and inductive), and dissolved oxygen (optical and amperometric). All sensors store calibration data and history directly in the sensor head, ensuring secure data transmission and maximum measured value availability. The inductive coupling is insensitive to moisture and corrosion, providing reliable performance even in demanding environments.

The CML18 enables full data consistency between lab and process measurements by using the same Memosens sensors that are already installed at fixed measuring points in the process. This eliminates deviations that can occur when different measurement technologies are used. Its “hot plug & play” capability allows rapid sensor switching—the device automatically detects the connected sensor, loads stored calibration data, and displays the correct measured value immediately.

Operation is intuitive via the SmartBlue app on existing tablets or smartphones, with all measured values and sensor data transferred securely via Bluetooth for convenient configuration, sensor adjustment, and documentation. The device can store more than 10,000 measured values with date, time, and sample ID stamps, supporting traceable quality management and data logging for long-term process monitoring.

Compact and robust, the CML18 measures only 84 x 54 x 47 mm (3.31 x 2.13 x 1.85 inches) and features IP66 ingress protection, making it suitable for field and laboratory use. The housing is constructed of PBT, with a PMMA display and TPE buttons and cap. An integrated inductive charging function supports Qi-certified chargers for convenient, cable-free power replenishment.

The Liquiline Mobile CML18 is suitable for chemical, water and wastewater, food and beverage, power and energy, life sciences, and other industrial applications.