Hygienic Conductivity Measurement for Demanding Processes

The Endress+Hauser Smartec CLD134 combines an inductive conductivity sensor and transmitter into a compact measuring system designed for hygienic applications.

Unlike conventional conductive sensors, the inductive measuring principle avoids direct electrode contact with the medium, making it suitable for applications where product purity and hygienic safety are critical.

The CLD134 provides reliable measurement of:

• 
  Conductivity
  
• 
  Concentration
  
• 
  Temperature
  

for demanding liquid process applications.

Inductive Conductivity Measurement Technology

The CLD134 uses a toroidal inductive conductivity measurement principle.

Advantages include:

• 
  No exposed electrodes in contact with the process medium
  
• 
  Reduced risk of polarization effects
  
• 
  Reliable measurement in highly conductive liquids
  
• 
  Suitable for aggressive or difficult media
  

The measuring range covers 100 µS/cm to 2000 mS/cm, making it suitable for a wide variety of process liquids.

Designed for Hygienic and Sterile Applications

The CLD134 is specifically developed for industries requiring strict hygiene standards.

Its hygienic design features:

• 
  Food-grade virgin PEEK body
  
• 
  Jointless and crevice-free construction
  
• 
  FDA-compliant materials
  
• 
  USP Class VI biocompatibility certification
  
• 
  Hygienic process connections
  

These features help prevent contamination and support safe production processes.

Ideal for CIP and SIP Processes

Cleaning and sterilization processes are essential in food, beverage and pharmaceutical production.

The CLD134 supports:

• 
  Cleaning-in-place (CIP)
  
• 
  Sterilization-in-place (SIP)
  

with process temperatures up to 150 °C for short-term sterilization.

This allows continuous conductivity monitoring during demanding hygienic production cycles.

Process Monitoring and Phase Separation

The CLD134 provides valuable process information for production optimization.

Typical applications include:

• 
  Product/water phase separation
  
• 
  Product/product separation
  
• 
  CIP return monitoring
  
• 
  Cleaning agent concentration control
  
• 
  Product quality monitoring
  
• 
  Leakage detection
  

By continuously monitoring conductivity changes, operators can improve process efficiency and reduce product losses.

Flexible Communication and Integration

The CLD134 supports integration into modern automation systems.

Available communication options include:

• 
  0/4 to 20 mA
  
• 
  HART
  
• 
  PROFIBUS DP
  
• 
  PROFIBUS PA
  

This allows easy connection to plant control systems and process monitoring platforms.

Key Features

• 
  Inductive conductivity measuring system
  
• 
  Designed for hygienic and sterile applications
  
• 
  Toroidal conductivity measurement principle
  
• 
  Measures conductivity, concentration and temperature
  
• 
  Food-grade PEEK hygienic sensor body
  
• 
  Suitable for CIP and SIP processes
  
• 
  Jointless and crevice-free design
  
• 
  FDA and USP Class VI compliant materials
  
• 
  Ideal for food, beverage and pharmaceutical industries
  
• 
  Supports HART and PROFIBUS communication
  

Typical Applications

Food & Beverage Industry

The CLD134 supports conductivity monitoring in hygienic production processes.

Applications include:

• 
  Beverage production
  
• 
  Dairy processing
  
• 
  Brewing processes
  
• 
  Product quality monitoring
  

CIP Cleaning Process Control

Conductivity is an important parameter for monitoring cleaning solutions.

The CLD134 helps with:

• 
  Cleaning agent concentration control
  
• 
  CIP return monitoring
  
• 
  Cleaning process optimization
  

Pharmaceutical and Biotechnology

For sterile production environments, reliable conductivity measurement is essential.

Typical applications:

• 
  Purified water systems
  
• 
  Cleaning validation processes
  
• 
  Sterile process monitoring
  

Product Phase Separation

The CLD134 can detect conductivity changes between different liquids.

Applications include:

• 
  Product/water separation
  
• 
  Product changeover monitoring
  
• 
  Reduction of product waste
  

FAQ

What is Endress+Hauser CLD134?

The CLD134 is an inductive conductivity measuring system designed for hygienic and sterile process applications.

What does CLD134 measure?

It measures conductivity, concentration and temperature of liquid media.

What industries use CLD134?

It is mainly used in food & beverage, dairy, brewery, pharmaceutical and biotechnology industries.

What is the advantage of inductive conductivity measurement?

The inductive principle avoids direct electrode contact with the medium, improving reliability in demanding applications and reducing maintenance requirements.

Is CLD134 suitable for CIP and SIP?

Yes. The CLD134 is designed for hygienic processes and supports CIP cleaning and SIP sterilization applications.