A Practical Housing for Multiple Sensors

The Flowfit CPA25 provides a defined flow path and mounting position for 12 mm liquid analysis sensors. It can accommodate up to three sensors, allowing several measurement parameters to be monitored from a single compact assembly.

It supports sensors for:

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  pH / ORP
  
• 
  Conductivity
  
• 
  Dissolved oxygen
  

This makes the CPA25 more than a simple pH sensor holder. It is a flexible mounting solution for standard water-quality measuring points.

Designed for Water and Wastewater Applications

The CPA25 is primarily intended for water and wastewater treatment as well as industrial auxiliary processes. Its polypropylene construction provides good resistance for these typical applications.

A key practical feature is its ability to keep the sensors wetted when the process flow stops. This is particularly useful for electrochemical sensors that should not be allowed to dry out during temporary flow interruptions.

Simple Sensor Maintenance

The CPA25 also supports convenient sensor maintenance. A removable calibration cap allows calibration directly at the assembly, helping simplify routine calibration work without requiring a completely separate setup.

Compact Three-Sensor Configuration

With three Pg 13.5 sensor slots, the assembly can be configured for multiple measurement parameters while keeping the measuring point relatively compact. This is useful where several water-quality measurements need to be installed together.

Key Features

• 
  Flow assembly for 12 mm liquid analysis sensors
  
• 
  Supports up to 3 sensors
  
• 
  Suitable for pH/ORP, conductivity and dissolved oxygen
  
• 
  Polypropylene PP holder
  
• 
  EPDM or FKM sealing options
  
• 
  Keeps sensors wetted when flow is interrupted
  
• 
  Calibration possible directly in the holder
  
• 
  Removable calibration cap
  
• 
  Compact three-sensor configuration
  
• 
  Process temperature: 0 to 80°C
  
• 
  Process pressure: max. 6 bar at 20°C
  
• 
  Designed for water, wastewater and industrial auxiliary processes
  

Typical Applications

Water Treatment

For installation of pH/ORP, conductivity and oxygen sensors in water treatment systems.

Wastewater Treatment

Suitable for routine water-quality measurement points in municipal and industrial wastewater processes.

Industrial Auxiliary Processes

Can be used for monitoring process water, utility water and other supporting water systems.

Multi-Parameter Water Monitoring

Useful when several liquid-analysis parameters need to be measured at the same location.

FAQ

What is the Endress+Hauser Flowfit CPA25?

The CPA25 is a flow assembly used to install liquid analysis sensors in a defined flow path. It is not a sensor or transmitter itself.

How many sensors can the CPA25 hold?

The Flowfit CPA25 provides space for up to three 12 mm sensors.

Which sensors can be installed in the CPA25?

It is designed for pH/ORP, conductivity and dissolved oxygen sensors with a 12 mm diameter.

What material is the CPA25 made of?

The holder is made from polypropylene (PP). The available sealing materials include EPDM and FKM.

What is the operating temperature of the CPA25?

The specified process temperature is 0 to 80°C.

What is the maximum process pressure?

The maximum process pressure is 6 bar at 20°C.

Can sensors be calibrated while installed in the CPA25?

Yes. A removable calibration cap allows calibration directly in the holder.