Conductivity Measurement for High-Temperature Water Cycles
The Condumax CLS13 is designed for conductivity measurement in steam and water cycles in power plants. It is optimized for low-conductivity media and is particularly suited to applications where both temperature and pressure can be high.
Typical measurement points include condensate, boiler feedwater and boiler blowdown. Monitoring conductivity at these points can help operators identify changes in water quality and conditions that may contribute to deposits or corrosion.
Designed for Low-Conductivity Applications
The CLS13 uses a conductive two-electrode measuring principle and is available with two cell constants.
The k=0.01 version covers 0–20 μS/cm, while the k=0.1 version covers 0–200 μS/cm. This configuration allows the sensor to be matched to different low-conductivity measurement ranges.
High Temperature Capability up to 250°C
One of the key characteristics of the CLS13 is its suitability for high-temperature applications. Endress+Hauser specifies a maximum process temperature of 250°C (482°F).
This makes the CLS13 particularly relevant to demanding power and energy applications where the conductivity measurement point is exposed to elevated process temperatures.
Designed for High Pressure
The sensor supports process pressures of up to 40 bar (580 psi) according to the current Endress+Hauser product information. This combination of pressure and temperature capability allows the CLS13 to be used in demanding steam/water-cycle measurement points.
Robust Stainless Steel Construction
The CLS13 uses a stainless steel sensor body designed for demanding process conditions. Endress+Hauser also highlights the removable outer electrode, which simplifies access for cleaning and routine maintenance.
The robust construction is particularly useful in applications where the sensor must operate reliably for extended periods under elevated temperature and pressure.
Suitable for Power and Energy Applications
The primary application area for the CLS13 is the power & energy industry. It is specifically intended for steam/water cycle conductivity measurement rather than general-purpose conductivity monitoring.
Typical measurement tasks include:
Condensate monitoring
Boiler feedwater monitoring
Boiler blowdown control
The sensor can also be used in other low-conductivity applications involving very high temperatures and pressures.
Designed to Help Monitor Deposits and Corrosion Risks
Low conductivity monitoring is important in steam and water cycles because changes in water chemistry can indicate contamination or changing process conditions.
Endress+Hauser positions the CLS13 for applications where reliable low-conductivity measurement helps protect processes and plant equipment from deposits and corrosion.
Easier Cleaning and Maintenance
The removable outer electrode allows the measuring cell to be accessed for cleaning. This is useful in applications where deposits may accumulate on the sensor during long-term operation.
The stainless steel construction also provides a practical basis for repeated maintenance in demanding industrial environments.
Large Connection Compartment
The CLS13 is designed with a large connection compartment, which Endress+Hauser identifies as an advantage for commissioning. This provides more working space when connecting the sensor during installation and maintenance.
Hazardous-Area Applications
The CLS13 is available with international explosion protection approvals, including ATEX and FM, depending on the selected configuration. This allows applicable versions to be used in hazardous-area installations where the relevant certification requirements are met.
Key Features
Product type: Analog conductivity sensor
Measuring principle: Conductive, 2-electrode
Designed for low-conductivity measurement
Optimized for high-temperature applications
Measuring range 0–20 μS/cm with k=0.01
Measuring range 0–200 μS/cm with k=0.1
Maximum process temperature 250°C (482°F)
Maximum process pressure 40 bar (580 psi)
Robust stainless steel construction
Removable outer electrode for easier cleaning
Large connection compartment for easier commissioning
Designed for steam/water cycles in power plants
Suitable for condensate monitoring
Suitable for boiler feedwater monitoring
Suitable for boiler blowdown control
International hazardous-area approvals such as ATEX and FM available depending on configuration
Typical Applications
Condensate Monitoring
The CLS13 can be installed in condensate monitoring points to measure low conductivity and identify changes in water quality within the steam/water cycle.
Boiler Feedwater Monitoring
The sensor can monitor conductivity in boiler feedwater systems, providing continuous information about the quality of water entering the boiler.
Boiler Blowdown Control
Conductivity measurement can be used as part of boiler blowdown monitoring and control, helping maintain appropriate water quality in the boiler system.
Power Plant Steam/Water Cycles
The CLS13 is specifically designed for conductivity measurement in power plant steam and water cycles, where high temperature, pressure and low conductivity create demanding measurement conditions.
High-Temperature Low-Conductivity Applications
The sensor can also be used in other industrial applications where liquids have relatively low conductivity and the measurement point is exposed to high temperatures and pressures.
Hazardous-Area Measurement
Where the appropriate certified configuration is selected, the CLS13 can be incorporated into hazardous-area measurement installations using applicable explosion protection approvals.
FAQ
What is the Endress+Hauser CLS13?
The Condumax CLS13 is an analog two-electrode conductivity sensor designed for low-conductivity measurement under demanding temperature and pressure conditions, particularly in power plant steam/water cycles.
What does the CLS13 measure?
The CLS13 measures the electrical conductivity of liquids. It is optimized for low-conductivity applications and is available with ranges of 0–20 μS/cm or 0–200 μS/cm depending on the selected cell constant.
What is the maximum temperature of the CLS13?
The maximum specified process temperature is 250°C (482°F).
What is the maximum process pressure?
The maximum specified process pressure is 40 bar (580 psi).
What are the main applications of the CLS13?
The primary applications are condensate monitoring, boiler feedwater monitoring and boiler blowdown control in power plant steam/water cycles.
Is the CLS13 suitable for low-conductivity water?
Yes. Low-conductivity measurement is one of the main applications of the CLS13. The sensor is available with k=0.01 and k=0.1 cell constants covering 0–20 μS/cm and 0–200 μS/cm respectively.
What is the difference between CLS12 and CLS13?
Both sensors are designed for low-conductivity measurement in demanding power plant applications. The key distinction on the current Endress+Hauser specifications is the maximum process temperature: the CLS13 is specified up to 250°C, while the CLS12 is specified for lower-temperature applications. The exact selection should also consider the complete process conditions and configuration.
Is the CLS13 easy to clean?
The CLS13 features a removable outer electrode and stainless steel construction, which Endress+Hauser highlights as making cleaning easier.
Can the CLS13 be used in hazardous areas?
Yes. Endress+Hauser lists international explosion protection approvals such as ATEX and FM for applicable configurations. The exact certification depends on the selected version.
Is the CLS13 a digital Memosens sensor?
No. The CLS13 is an analog conductivity sensor using a conductive two-electrode measuring principle. It should not be confused with Endress+Hauser's digital Memosens conductivity sensors.
