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Assembly for process photometers OUA260

Flow assembly for a variety of optical inline measurements

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Assembly for process photometers OUA260

Flow assembly for a variety of optical inline measurements

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Benefits

  • Low volume of the flow assembly significantly reduces sample consumption
  • Suitable for cleaning-in-place (CIP) and sterilization-in-place (SIP)
  • Certified biocompatibility according to USP class VI
  • Ultra-hygienic thanks to electropolished surface Ra=0.4 µm (16 µinch)
  • Compliant with EG 2023/2006 and 1935/2004
  • Wide range of materials and process connections for perfect fit into every application
  • Wide range of optical window materials and path lengths for optimum adaption to every process
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.

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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.

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Product information

OUA260 is the best-in-class flow cell for absorption, color and turbidity measurements.
Flow assembly for optical inline sensors
Specifications
Measuring / Application task Concentration
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Description

OUA260 is the best-in-class flow assembly for absorption, color and turbidity measurements. Its ultra-hygienic design and certified biocompatibility meet the highest demands to protect your products reliably from contamination. Multiple process connections and available materials ensure a perfect fit and performance even in aggressive media. Better still, its low cell volume speeds up sensor response times, thus providing you with fast measured values.

Field of application

The OUA260 flow cell is used in combination with:

  • OUSAF12 Suspended solids and color sensor
  • OUSAF22 Color sensor
  • OUSAF44 UV absorption sensor
  • OUSAF46 UV absorption sensor
  • OUSTF10 Turbidity and suspended solids sensor

Typical applications are:

  • Chromatography control
  • Filtration monitoring
  • Color measurement
  • Centrifuge control
  • Protein concentration
  • Turbidity measurement
  • Phase detection

OUA260 is suitable for hazardous area use. A pharma certificate of compliance with serial number specified is available.

Benefits
  • Low volume of the flow assembly significantly reduces sample consumption
  • Suitable for cleaning-in-place (CIP) and sterilization-in-place (SIP)
  • Certified biocompatibility according to USP class VI
  • Ultra-hygienic thanks to electropolished surface Ra=0.4 µm (16 µinch)
  • Compliant with EG 2023/2006 and 1935/2004
  • Wide range of materials and process connections for perfect fit into every application
  • Wide range of optical window materials and path lengths for optimum adaption to every process
Downloads
Most downloaded
Technical Information (TI)
TI OUA260 Flow assembly for sensors OUSAFxx and OUSTF10
English version - 09/2025
Download
Operating Instruction (BA)
BA OUA260 Flow assembly for sensors OUSAFxx and OUSTF10
English version - 09/2025
Download
Technical Information (TI)
OUSAF44 Optical sensor combined with the OUA260 flow assembly for the
measurement of UV absorption
English version - 12/2022
Download
The CAD Drawings will be available after the configuration.
All downloads
12 Downloads
Technical Information (TI)
OUSAF44 Optical sensor combined with the OUA260 flow assembly for the
measurement of UV absorption
English version - 12/2022
Download
Technical Information (TI)
Most downloaded
TI OUA260 Flow assembly for sensors OUSAFxx and OUSTF10
English version - 09/2025
Download
Operating Instruction (BA)
Most downloaded
BA OUA260 Flow assembly for sensors OUSAFxx and OUSTF10
English version - 09/2025
Download
Installation Instructions (EA)
EA Process Photometer OUA260 Maintenance kit OUA260
English version - 03/2026
Download
Competence Brochure (CP)
Photomètres de process Expertise en analyses physico-chimiques
French version - 09/2016
Download
Competence Brochure (CP)
プロセスフォトメータ 水質分析に関する高度な専門知識
Japanese version - 04/2024
Download
Competence Brochure (CP)
Prozessphotometer Kompetenz in der Flüssigkeitsanalyse
German version - 09/2016
Download
Competence Brochure (CP)
Fotómetros para procesos Experiencia en análisis de líquidos
Spanish version - 01/2015
Download
AI (Application note)
High-quality sugar and no bittersweet suprise Inline quality measurement in sugar production
English version - 01/2021
Download
AI (Application note)
Guter Zucker und keine bittersüße Überraschung Inline-Qualitätsmessung in der Zuckerproduktion
German version - 01/2021
Download
Manufacturer Declaration
Product family: UV Product root: OUA260-
Declaration number: HE_01508_01.21
Manufacturer specification: PED
English version - 10/2021
Download
Manufacturer Declaration
Product family: UV Product root: OUA260-
Declaration number: HE_01905_03.25
Manufacturer specification: Food hygiene
Additional information: Japan Food contact material
English version - 05/2025
Download

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Spare parts and accessories

further parts
further parts

KIT OUA260 Window O-rings EPDM (USP)

further parts
further parts
Order code 71136357
further parts
further parts

KIT OUA260 Window O-rings Kalrez

further parts
further parts
Order code 71136358
further parts
further parts

KIT OUA260 Window O-rings Silicone

further parts
further parts
Order code 71136359
further parts
further parts

KIT OUA260 Window O-rings Viton (USP)

further parts
further parts
Order code 71136360
Spare parts & accessories

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OUA260 is the best-in-class flow cell for absorption, color and turbidity measurements.
Flow assembly for optical inline sensors

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OUA260 is the best-in-class flow cell for absorption, color and turbidity measurements.
Flow assembly for optical inline sensors
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Spare parts and accessories

further parts
further parts

KIT OUA260 Window O-rings EPDM (USP)

further parts
further parts
Order code 71136357
further parts
further parts

KIT OUA260 Window O-rings Kalrez

further parts
further parts
Order code 71136358
further parts
further parts

KIT OUA260 Window O-rings Silicone

further parts
further parts
Order code 71136359
further parts
further parts

KIT OUA260 Window O-rings Viton (USP)

further parts
further parts
Order code 71136360
Spare parts & accessories