Endress+Hauser CLS19-A1A1A The Ultimate Compact Water Analysis Sensor

The Endress+Hauser CLS19-A1A1A is a robust, compact, and maintenance-free 2-electrode conductivity sensor designed for continuous water quality monitoring in demanding industrial and municipal applications. This versatile sensor delivers reliable, accurate measurements of conductivity and temperature, making it an ideal choice for pure to low conductivity water applications.

Key Features & Benefits:

Compact & Rugged Design: The CLS19's robust PPS/Stainless Steel construction ensures long-term durability in harsh environments, including chemical exposure and outdoor installations.

Maintenance-Free Operation: With no moving parts and a sealed design, the sensor minimizes operational costs and downtime.

Integrated Temperature Sensor (Pt1000): Provides accurate temperature compensation for precise conductivity readings across a wide range.

Wide Measurement Range: Suitable for applications from ultrapure water to wastewater, with excellent accuracy in low conductivity media.

Easy Integration: Simple connection via a fixed cable (A1A1A designation) and compatibility with Endress+Hauser transmitters like the Liquiline CM44x ensures quick setup.

Certified Hygiene: Designed with EHEDG certification, making it suitable for applications in the food, beverage, and pharmaceutical industries.

Technical Specifications (Parameters):

Product Name: CLS19-A1A1A Conductivity Sensor

Measurement Principle: 2-Electrode Conductivity Cell

Measured Variables:

Conductivity

Temperature (via integrated Pt1000)

Cell Constant: K = 0.01 cm⁻¹ (ideal for pure and low conductivity water)

Conductivity Range: 0.1 µS/cm to 200 µS/cm (dependent on transmitter)

Temperature Range: -20 to 80 °C (-4 to 176 °F)

Pressure Rating: Up to 16 bar (232 psi) at 25°C

Process Connection: G¾" A, VARIVENT® (depends on ordering code)

Housing Material: PPS (Polyphenylene Sulfide)

Electrode Material: Stainless Steel 1.4435 (316L)

Cable: Fixed cable (A1A1A), 10 m length, PUR sheath

Certifications: EHEDG, CE, RoHS

Typical Applications:

Monitoring of ultrapure water (UPW) in power plants and microelectronics

Control of ion exchange processes and demineralization plants

Cooling water monitoring

Water quality assessment in municipal drinking water

Condensate and boiler feedwater control

General-purpose water analysis in chemical and pharmaceutical industries

Why Choose the CLS19-A1A1A Sensor?

For engineers and plant managers seeking a reliable, low-maintenance solution for water conductivity monitoring, the Endress+Hauser CLS19 sensor offers exceptional value. Its combination of ruggedness, accuracy, and seamless integration with industry-leading transmitters makes it a top choice for ensuring process efficiency and water quality compliance.