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Mechanical cleaning CYR51
New

Cleaning unit for turbidity and UV-Vis absorption sensors

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Mechanical cleaning CYR51
New

Cleaning unit for turbidity and UV-Vis absorption sensors

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Benefits

  • Seamless integration and easy installation: Integrate the mechanical cleaning with your optical sensor to meet your cleaning demands. Experience flawless performance without sensor interruption.  
  • Keep your sensor performance at a high level: Reduce your maintenance effort with automatic cleaning. Take advantage of durable wiper blades and brushes.  
  • Customized package for your cleaning needs: Meet  your individual cleaning needs with our tailored solution. Choose between chemical, compressed air, and mechanical cleaning. 
  • Retrofit your plant: As a reliable partner, we want to support by optimizing your existing installation. The cleaning unit can be easily upgraded on your installed base. We help you through every step, from evaluation to installation and service.
FLEXible answers to individual needs
Current product

Mechanical cleaning CYR51

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  • High-end products
  • Highly functional and convenient

What is FLEX?

FLEX selections
Technical excellence
Simplicity
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Fundamental selection Meet your basic measurement needs
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Lean selection Handle your core processes easily
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Extended selection Optimize your processes with innovative technologies
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Xpert selection Master your most challenging applications
Variable
Manufacturer's warranty

Engineered for confidence

Our instruments are designed for long‑lasting performance, precise measurement, and dependable operation in demanding industrial environments. Each product includes a standard manufacturer’s warranty that reflects our commitment to quality and to the trust you place in our solutions.

Should a warranty case occur, the device will be assessed and the applicable remedy will be provided in line with the warranty terms – helping ensure a reliable and efficient resolution and supporting continued operation of your measurement point.

Request for extended warranty

If you require extended warranty coverage, simply contact your local Endress+Hauser representative. Our experts will advise you on the available options to match your application and risk profile, helping you protect your investment, reduce unexpected repair costs, and ensure reliable long‑term operation beyond the manufacturer's warranty period.

Learn more

Warranty terms apply

The manufacturer's warranty and extended warranty are subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

Services by your side

Right‑first‑time commissioning, worldwide

Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.

Remote support you can trust wherever you operate

With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.

Committed to long‑term, sustainable performance

With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.

For additional information, please contact your local Endress+Hauser representative.

Learn more

24/7 customer portal

Personalized transaction space

Check prices and delivery times, save your favorite products, create quotes and place orders in just a few clicks and track deliveries at any time. With access to your complete order and quote history including all relevant documents you benefit from full transparency throughout the entire process.

Easy access to technical documentation

Select and download all technical documentation such as operating manuals, calibration certificates, approvals and CAD drawings conveniently bundled as a complete documentation package for your entire order or quote.

My Endress+Hauser – all in one place

My Endress+Hauser is your 24/7 connection to Endress+Hauser – in the office, in the field or on the go. It brings together transaction management, documentation and software downloads, knowledge base access, customer support, engineering tools and cloud‑based IIoT services helping you work easier, faster and more efficiently.

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Product information

Mechanical cleaning CYR51 for turbidity and UV-Vis absorption sensors
Mechanical cleaning CYR51
Specifications
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Description

CYR51 is a mechanical cleaning unit for turbidity and UV-Vis absorption sensors, which is easy to install. Benefit from reliable performance without sensor interruption, reduced maintenance thanks to automatic cleaning and durable wiper blades and brushes. Optimize your installation with the cleaning unit, which can be seamlessly integrated into the installed base. Sensors can be cleaned directly in basins or tanks. For smooth operation, we recommend the Flexdip CYA112 and CYH112 holder. 

Field of application

The CYR51 mechanical cleaning is used for automated cleaning of turbidity and UV-Vis absorption sensors in the following applications: 

  • Wastewater
  • Drinking water
  • Surface water
  • Process water
Benefits
  • Seamless integration and easy installation: Integrate the mechanical cleaning with your optical sensor to meet your cleaning demands. Experience flawless performance without sensor interruption.  
  • Keep your sensor performance at a high level: Reduce your maintenance effort with automatic cleaning. Take advantage of durable wiper blades and brushes.  
  • Customized package for your cleaning needs: Meet  your individual cleaning needs with our tailored solution. Choose between chemical, compressed air, and mechanical cleaning. 
  • Retrofit your plant: As a reliable partner, we want to support by optimizing your existing installation. The cleaning unit can be easily upgraded on your installed base. We help you through every step, from evaluation to installation and service.
Downloads
Most downloaded
Operating Instruction (BA)
BA CYR51 Mechanical cleaning unit
English version - 04/2025
Download
Innovation (IN)
Reliable performance with every cycle Durable, automated cleaning for consistent measurement
with the CYR51 mechanical cleaning
English version - 08/2025
Download
Technical Information (TI)
TI CYR51 Mechanical cleaning unit
English version - 06/2025
Download
The CAD Drawings will be available after the configuration.
All downloads
10 Downloads
Technical Information (TI)
TI CYR51 Mechanical cleaning unit
English version - 06/2025
Download
Operating Instruction (BA)
Most downloaded
BA CYR51 Mechanical cleaning unit
English version - 04/2025
Download
Installation Instructions (EA)
EA CYR51 mechanical cleaning Spare parts kits
English version - 04/2026
Download
Innovation (IN)
Prestazioni affidabili ad ogni ciclo Prestazioni affidabili
ad ogni ciclo
Pulizia automatizzata e di lunga durata
per misure robuste con l’unità di pulizia
meccanica CYR51
Italian version - 09/2025
Download
Innovation (IN)
Präzise Messung nach jeder Reinigung Langlebige, automatisierte Reinigung für
stabile Messungen mit der mechanischen
Reinigung CYR51
German version - 08/2025
Download
Innovation (IN)
Most downloaded
Reliable performance with every cycle Durable, automated cleaning for consistent measurement
with the CYR51 mechanical cleaning
English version - 08/2025
Download
Manufacturer Declaration
Product family: Accessories Product root: CYR51-
Declaration number: HE_02171_01.25
Manufacturer specification: RoHS
Additional information: China-RoHS
English version - 06/2025
Download
EU Declaration
Product family: Accessories Product root: CYR51-
Declaration number: EU_01245_02.26
English version - 01/2026
Download
Ordinary Location Product Safety
Product family: Accessories Product root: CYR51-
Region: Canada/USA
Approval agency: CSA
English version - 12/2025
Download
Components sheet
Kit: module DIO SF Kit: module DIO
English version - 08/2026
Download

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Spare parts and accessories

further parts
further parts

Spare and wear parts CYR51

further parts
further parts
Order code XPC0031-
further parts
further parts

Kit: module DIO

further parts
further parts
Order code 71135638
Spare parts and accessories
Mechanical cleaning CYR51 for turbidity and UV-Vis absorption sensors
Mechanical cleaning CYR51
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Spare parts and accessories

further parts
further parts

Spare and wear parts CYR51

further parts
further parts
Order code XPC0031-
further parts
further parts

Kit: module DIO

further parts
further parts
Order code 71135638
Spare parts and accessories