Technical Data
CompareConductivity
| Measuring Principle | Conductive |
| Application | Power plant, condensate, boiler feed water |
| Characteristic | 2-electrode conductivity cell for high temperature applications in pure and ultrapure water |
| Measuring range | k=0.01: 0 to 20 µS/cm k= 0.1: 0 to 200 µS/cm |
| Measuring principle | Conductive conductivity cell with polished stainless steel electrodes |
| Design | Large coaxially arranged electrodes for a fast media flow through the cell |
| Material | Electodes: stainless steel 1.4571 Sealing: PEEK / EPDM |
| Dimension | Electrode diameter: 25 mm (0.98 inch) Immersion depth: 50 to 115 mm (1.97 to 4.53 inch) |
| Process temperature | -30 to 160 °C (-22 to 320 °F) |
| Process pressure | Max. 40 bar up to 100 °C (max. 580 psi up to 212 °F) without CLA 751 flow chamber Max. 12 bar up to 150 °C (max. 174 psi up to 302 °F) with CLA 751 flow chamber |
| Temperature sensor | Integrated Pt100 |
| Ex certification | ATEX |
| Connection | Process connection : G1" and NPT1" Fixed cable on transmitter |
| Ingress protection | IP67 |
| Certificates, declarations and approvals | Calibration certification with cellconstant |
The Condumax CLS1 conductivity sensor is robust and durable and is used for conductivity measurement in steam/water cycles in power plants. It protects the measurement process from corrosion and measures precisely even in high-temperature, high-pressure environments. Low maintenance and a large terminal compartment make it the ideal sensor for measurements under harsh operating conditions.
Advantages
Reliable and precise measurement of low-conductivity media
Especially suitable for high-temperature (160 °C / 320 °F) and high-pressure applications
Stainless steel body and removable electrode for easy cleaning
Robust and durable
Quality certificate includes cell constant specification
Areas of application
The Condumax CLS12 is used for conductivity measurement in steam/water cycles in the power&energy industry:
Condensate monitoring
Boiler feedwater monitoring
Boiler blowdown control
Usable for low-conductivity media measurement under high temperature and high pressure
International explosion protection approvals such as ATEX and FM, suitable for hazardous explosive areas
Spare Parts & Accessories 13
13 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| 50050950 | isolating ringAlte Material-Nummer: 125104 | Details |
| 50047103 | O-ring | Details |
| 50078647 | O-ring | Details |
| 50013937 | flat sealing gasketAlte Material-Nummer: 115731 | Details |
| 50050949 | Insulated OscillatorAlte Material-Nummer: 125103 | Details |
| 50089330 | electrode | Details |
| 50089331 | electrode | Details |
| 71603556 | CLS12/13 Outer Sheath | Details |
| 50081902 | Calibration solution 74.0 µS/cm500 ml, reference temperature 25oC. Precision solution referred to SRM of NIST. With temp. table for qualified calibration of conductivity measuring systems acc. to ISO | Details |
| 50081903 | calibration solution500 ml, reference temperature 25oC. Precision solution referred to SRM of NIST. With temp. table for qualified calibration of conductivity measuring systems acc. to ISO. | Details |
| 50081904 | Calibration solution 1.406 mS/cm500 ml, reference temperature 25oC. Precision solution referred to SRM of NIST. With temp. table for qualified calibration of conductivity measuring systems acc. to ISO | Details |
| 50081905 | calibration solution500 ml, reference temperature 25oC. Precision solution referred to SRM to NIST. With temp. table for qualified calibration of conductivity measuring systems acc. to ISO | Details |
| 50081906 | calibration solution500 ml, reference temperature 25oC. Precision solution referred to SRM of NIST. With temp. table for qualified calibration of conductivity measuring systems acc. to ISO | Details |
Configurator / Comparison
A
Source:Endress+Hauserwebsite public information
Measuring principle video
Click to playManuals & Documents 6
All documents for this model6 documents · click to expand
Case Studies
Municipal Wastewater Treatment · conductivity — Application Case
Customer Profile
The typical setting in Municipal Wastewater Treatment is the inlet, biological and outlet stages of a municipal plant. The measuring point is conductivity; the focus is measuring conductivity to judge water purity or chemical concentration.
Key Difficulties
Conditions are high solids and corrosive fractions, with large diurnal flow swings and, on top of that, effluent parameters drift and probes foul with sludge and biofilm, which a standard configuration cannot handle for long. The design therefore starts with choosing two- or four-electrode cells by range and corrosivity.
Implementation
The scope ran through the analyser range: selecting as part of a complete water-analysis system. Technically it hinges on choosing two- or four-electrode cells by range and corrosivity, and on these requirements: stable compliance with Grade 1A discharge limits and online data reporting.
Customer Benefit
In practice this means stable concentration control and less reagent and discharge waste, which cut the workload on the site maintenance team.
Food & Beverage · conductivity — Application Case
Project Background
The project covers dosing, pasteurising, filling and CIP stages. The work centres on conductivity and the core task is measuring conductivity to judge water purity or chemical concentration.
Operating Challenges
The medium and duty are characterised by syrups, dairy and beverages that scale easily, under strict hygienic requirements, and frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. So conductivity cannot be specified generically — it calls for choosing two- or four-electrode cells by range and corrosivity.
Solution
The Ainstru engineering team worked through the analyser range: selecting as part of a complete water-analysis system. The configuration involves choosing two- or four-electrode cells by range and corrosivity, with these requirements in view: food-safety and hygienic design per 3-A / EHEDG.
Results
Since start-up the system has run steadily; the practical result is stable concentration control and less reagent and discharge waste.
Chemical & Pharmaceutical · conductivity — Application Case
Project Overview
The site is reactors, metering vessels and finished-product tanks. The customer wanted conductivity properly configured on the existing plant, with the aim of measuring conductivity to judge water purity or chemical concentration.
Technical Challenges
What actually causes trouble is highly corrosive media with solvents and crystallisation, partly in explosive atmospheres, and corrosion plus Ex protection shortens instrument life and makes downtime costly. All of this means the conductivity configuration has to involve choosing two- or four-electrode cells by range and corrosivity.
Configuration
Supply and installation were organised through the analyser range: selecting as part of a complete water-analysis system. On site this meant choosing two- or four-electrode cells by range and corrosivity, checked line by line against: Ex certification and GMP traceability of records.
Performance
After commissioning the outcome is stable concentration control and less reagent and discharge waste, and the readings are now used for process tuning.
Power & Energy · conductivity — Application Case
Site Conditions
This is a Power & Energy customer whose plant is at boiler feedwater, turbine condensate and FGD/DeNOx systems. The main task was measuring conductivity to judge water purity or chemical concentration.
The Problem
The difficulty lies in high temperature and pressure with both steam and saline water; at the same time drift under high temperature and pressure, with very costly unplanned outages. Specification therefore means choosing two- or four-electrode cells by range and corrosivity.
What We Did
We took a analyser range approach — selecting as part of a complete water-analysis system. Delivery was built around choosing two- or four-electrode cells by range and corrosivity, with point-by-point checks on: compliance with power-industry codes and unit availability targets.
Operating Outcome
In service the system performs as intended — stable concentration control and less reagent and discharge waste, with routine maintenance falling noticeably.
