Condumax CLS13

Summary

Product Identification

• Product Name: Condumax CLS13
• Product Type: Conductivity sensor for high-temperature applications
• Document: TI00083C/07/EN/14.22-00, 71576069, 2022-06-30

Application

The Condumax CLS13 sensor is designed for measuring conductivity in water or steam circuits, particularly in the power plant and energy industry. It is suitable for:

• Condensate monitoring
• Boiler feedwater monitoring
• Boiler blowdown monitoring

The sensor is optimized for applications with low conductivity, very high temperatures, and high pressures. Versions with explosion protection approval (ATEX, FM, CSA) are available for hazardous areas.

Measuring Principle

The sensor operates on the principle of conductive measurement. An alternating voltage is applied across two electrodes immersed in the medium. The resulting current flow is measured, and based on Ohm's law, the electrical resistance (or conductance) is calculated. The specific conductance (κ) is then determined using the cell constant (k), which is dependent on the sensor's geometry.

Measuring System Components

A complete measuring system comprises:

• Conducting conductivity sensor CLS13
• A transmitter (e.g., Liquiline M CM42)
• A measuring cable (e.g., CYK71 for analog sensors)

Input Parameters

• Measured Variables:
  • Conductivity
  • Temperature
• Conductivity Measuring Ranges (at 25 °C):
  • CLS13-A: 0.04 to 20 μS/cm
  • CLS13-B: 0.10 to 200 μS/cm
• Temperature Measuring Range: -20 to 250 °C (-4 to 480 °F)

Operating Limits

• Process Temperature Range: -20 to 250 °C (-4 to 480 °F)
• Process Pressure: 1 to 41 bar (15 to 595 psi), absolute

Mechanical and Hydraulic

• Cell Constant:
  • CLS13-A: k = 0.01 cm⁻¹
  • CLS13-B: k = 0.1 cm⁻¹
• Materials (in contact with medium):
  • Electrodes: Stainless steel 1.4571 (AISI 316Ti)
  • Process connection: Stainless steel 1.4571 (AISI 316Ti)
  • Seals: FFKM
  • Insulator body: Ceramic
• Process Connections: Thread G1 or NPT 1"
• Weight: Approx. 1.7 kg (3.75 lbs) depending on version
• Minimum Immersion Depth: ≥ 50 mm (1.97 in)

Electrical

• Temperature Sensor: Pt 100 (class B as per IEC 60751)
• Electrical Connection: Via fixed cable or measuring cable CYK71 with shield.

Environment

• Ambient Temperature Range: -20 to 60 °C (-4 to 140 °F)
• Storage Temperature: -25 to +80 °C (-10 to +180 °F)
• Degree of Protection: IP67

Accessories

• Flow Assemblies: CLA751 (Stainless steel, max. 160 °C, 12 bar), CLA752 (Polypropylene, max. 90 °C, 6 bar)
• Measuring Cable: CYK71 (available by the meter, Non-Ex and Ex versions)
• Junction Boxes: VBM (IP65), VBM-Ex (IP65 / NEMA 4X)
• Calibration Solutions: CLY11 (e.g., 74 μS/cm, 149.6 μS/cm)
• Calibration Set: Conducal CLY421 (for ultrapure water)

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Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror