One Sensor for pH and ORP Measurement

The CPS76E combines pH and ORP measurement in a single sensor, helping simplify installation while providing a more complete view of chemical process conditions.

By measuring both parameters from one measuring point, it can support tighter process control where pH and redox conditions are closely related.

Designed for Difficult Chemical Processes

The CPS76E is developed for applications where standard electrodes may struggle due to contamination, rapidly changing values or aggressive process conditions.

Its poison-resistant reference system with ion trap technology helps maintain stable measurement in media containing high levels of electrode poisons such as hydrogen sulfide (H₂S).

Stable Measurement in Low-Conductivity Media

Low conductivity liquids can make reliable electrochemical measurement more challenging. The CPS76E uses advanced gel technology and a contamination-resistant reference design to support stable measurement in these applications.

Memosens 2.0 Digital Technology

The CPS76E uses Memosens 2.0 technology, allowing calibration and process information to be stored directly in the sensor.

This enables laboratory calibration away from the process and simplifies sensor replacement and maintenance management.

Built for Chemical Process Applications

The sensor is suitable for chemical process monitoring where both pH and ORP values are important, including processes with quickly changing conditions and demanding media.

Key Features

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  Digital combined pH/ORP sensor
  
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  Simultaneous pH and ORP measurement
  
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  Memosens 2.0 digital technology
  
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  ORP measuring range: -1500 to +1500 mV
  
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  pH measuring range: 0 to 14 (Application B)
  
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  pH measuring range: 0 to 12 (Application H)
  
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  Poison-resistant reference system with ion trap
  
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  Suitable for polluted and low-conductivity media
  
• 
  Platinum ORP measuring element
  
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  Advanced gel technology
  
• 
  Integrated temperature sensor (NTC 30k)
  
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  Sensor diameter: 12 mm
  
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  Shaft lengths: 120 / 225 / 360 / 425 mm
  
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  Process temperature up to 140°C
  
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  Process pressure up to 14 bar absolute (depending on version)
  
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  IP68 protection
  
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  Hazardous-area versions available

Typical Applications

Chemical Processing

For processes where both pH and ORP monitoring are required and measurement stability is important.

Wastewater Treatment

Suitable for wastewater processes where contamination and changing chemical conditions can affect sensor performance.

Processes with H₂S

Designed for applications containing high levels of hydrogen sulfide, which can poison conventional electrodes.

Low-Conductivity Applications

Suitable for liquids where conductivity is low and maintaining stable reference measurement is challenging.

Industrial Process Monitoring

For applications requiring combined monitoring of acidity/alkalinity and oxidation-reduction conditions.

FAQ

What is the Endress+Hauser CPS76E?

The CPS76E is a digital combined pH/ORP sensor that measures both pH and ORP values with one sensor. (endress.com)

What is the difference between CPS62E and CPS76E?

The CPS62E is a dedicated ORP sensor, while the CPS76E combines pH and ORP measurement in one sensor.

Can the CPS76E measure both pH and ORP?

Yes. The CPS76E is designed for simultaneous measurement of pH and ORP. It can also provide rH values when used in rH mode.

What is the ORP measuring range?

The ORP measuring range is -1500 to +1500 mV.

What is the maximum temperature?

The CPS76E supports process temperatures up to 140°C, depending on the selected version.

Does the CPS76E use Memosens 2.0?

Yes. Memosens 2.0 stores calibration and process data in the sensor and supports easier maintenance.

Is CPS76E suitable for hazardous areas?

Yes. Versions with ATEX, IECEx, CSA C/US, NEPSI, Japan Ex and INMETRO approvals are available depending on configuration.