Memosens CLS15E
Technical Data
CompareConductivity
| Measuring Principle | Conductive |
| Application | Measurement in pure and ultrapure water range Monitoring of ion exchangers Reverse osmosis Distillation and chip cleaning |
| Characteristic | Digital 2-electrode conductivity sensor |
| Measuring range | k=0,01: 0.04 to 20 µS/cm k=0,1: 0.10 to 200 µS/cm |
| Measuring principle | Conductive conductivity cell with electropolished stainless steel electrodes |
| Design | 2-electrode conductivity cell with coaxially arranged electrodes, electropolished |
| Material | Electrode: stainless steel 1.4435 Electrode shaft: PES |
| Dimension | Electrode diameter: 16 mm (0.63 inch) Electrode length: appr. 55 mm (2.17 inch) |
| Process temperature | Threaded with fixed cable: -20 to 100 °C (-4 to 212 °F) Threaded with plug-in head: -20 to 120 °C (-4 to 248 °F) Sterilization: max. 140 °C (284 °F) for 30 minutes |
| Process pressure | 13 bar at 20 °C (188 psi at 68 °F) absolute 2 bar at 120 °C (14 psi at 248 °F) absolute |
| Temperature sensor | Pt1000 |
| Ex certification | ATEX, NEPSI, CSA, IECEx, INMETRO, EAC Ex |
| Connection | Process: 1/2" and 3/4" NPT, Clamp 1 1/2" Sensor connection: Inductive, digital connection head with Memosens 2.0 technology |
| Ingress protection | IP68 |
| Certificates, declarations and approvals | Calibration certification of the cell constante and temperature, material certification 3.1 |
The Memosens CLS15E conductivity sensor is particularly suitable for low-conductivity measurement applications such as boiler feedwater and chip cleaning. Even in hazardous areas, the conductivity sensor reliably performs high-precision measurements. CLS15E uses Memosens 2.0 digital technology, supports extended data storage and saves calibration, settings and process parameters, providing the perfect basis for implementing predictive maintenance and advancing IIoT technology.
Advantages
Low maintenance workload and long service life make the sensor extremely cost-effective.
The sensor withstands high-temperature disinfection and autoclaving and can be installed on aseptic equipment.
The electrodes of Memosens CLS15E are symmetrically arranged, delivering high-precision low-conductivity measured values.
The quality certificate indicates the sensor's cell constant, allowing precise adjustment of the measuring point.
Supports IIoT: Memosens 2.0 supports extended data storage, saves calibration and process parameters for better trend identification, and is the perfect basis for implementing predictive maintenance and advancing IIoT technology.
Non-contact inductive signal transmission provides high process safety.
Application
Memosens CLS15E measures conductivity in pure and ultrapure water applications for process monitoring:
Boiler feedwater
Ion exchange columns
Reverse osmosis processes
Circulating cooling water
Distillation columns
Chip cleaning
Digital sensors used in power plants:
Degassed conductivity
pH measurement based on differential conductivity
With international explosion protection approvals such as ATEX and IECEx, the cable can be used in hazardous areas.
E+H Product Configurator
Please enter the product model to configure
Product comparison
Please enter the product models to compare in the boxes below (max. three products)
Technical documentation
Technical data
Documents/Manuals/Software
Accessories/Spare parts
A
Source:Endress+Hauserwebsite public information
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · Conductivity Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of Conductivity.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Conductivity for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · Conductivity Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of Conductivity.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Conductivity for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · Conductivity Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of Conductivity.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Conductivity for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · Conductivity Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of Conductivity.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Conductivity for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.







