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VARIVENT assembly for process photometers CUA261

Flow assembly with VARIVENT adapter for a variety of optical inline measurements

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VARIVENT assembly for process photometers CUA261

Flow assembly with VARIVENT adapter for a variety of optical inline measurements

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Benefits

  • Allows installation of Endress+Hauser process photometers into processes where VARINLINE housings are used
  • Hygienic process connection, suitable for cleaning-in-place (CIP) and sterilization-in-place (SIP), ensures highest product safety
  • Wide range of window materials and optical path lengths for optimum adaption to every process
  • Compliant with FDA and (EC) No 1935/2004
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.

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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.

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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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Product information

Flow assembly with VARIVENT connetion for process photometers
Flow assembly for optical inline sensors
Specifications
Measuring / Application task Concentration
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Description

CUA261 is the right choice for you if you want to install a process photometer into pipelines with VARIVENT connection, for example for measurement of absorption, color or turbidity. Select from multiple path lengths and window materials to ensure a perfect fit into your process. CUA261 is available as VARIVENT adapter for already existing housings or can be ordered as complete flow assembly with VARINLINE housing.

Field of application

The CUA261 can be used with:

  • OUSAF12 suspended solids and color sensor
  • OUSAF22 color sensor
  • OUSAF44 and OUSAF46 UV absorption sensors
  • OUSTF10 turbidity and suspended solids sensor

  

Typical applications are:

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

  

CUA261 is suitable for hazardous area use.

  

VARIVENT and VARINLINE are registered trademarks of GEA Tuchenhagen GmbH.

Benefits
  • Allows installation of Endress+Hauser process photometers into processes where VARINLINE housings are used
  • Hygienic process connection, suitable for cleaning-in-place (CIP) and sterilization-in-place (SIP), ensures highest product safety
  • Wide range of window materials and optical path lengths for optimum adaption to every process
  • Compliant with FDA and (EC) No 1935/2004
Downloads
Most downloaded
Operating Instruction (BA)
BA CUA261 Adapter for installing process photometers in VARIVENT process
connections
English version - 12/2023
Download
Manufacturer Declaration
Product family: Armaturen Product root: CUA261-
Declaration number: HE_01531_01.21
Manufacturer specification: PED
English version - 10/2021
Download
The CAD Drawings will be available after the configuration.
All downloads
2 Downloads
Operating Instruction (BA)
BA CUA261 Adapter for installing process photometers in VARIVENT process
connections
English version - 12/2023
Download
Manufacturer Declaration
Product family: Armaturen Product root: CUA261-
Declaration number: HE_01531_01.21
Manufacturer specification: PED
English version - 10/2021
Download

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Spare parts and accessories

Optical assembly
Optical assembly

Kit CUA261 Window 14mm Quartz

Optical assembly
Optical assembly
Order code 71347354
Drawing number 1
Optical assembly
Optical assembly

Kit CUA261 Window 19mm Quartz

Optical assembly
Optical assembly
Order code 71347355
Drawing number 1
Optical assembly
Optical assembly

Kit CUA261 Window 21.5mm Quartz

Optical assembly
Optical assembly
Order code 71347356
Drawing number 1
Optical assembly
Optical assembly

Kit CUA261 Window 14mm Sapphire

Optical assembly
Optical assembly
Order code 71347357
Drawing number 1
Spare parts & accessories
Flow assembly with VARIVENT connetion for process photometers
Flow assembly for optical inline sensors

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Flow assembly with VARIVENT connetion for process photometers
Flow assembly for optical inline sensors
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Spare parts and accessories

Optical assembly
Optical assembly

Kit CUA261 Window 14mm Quartz

Optical assembly
Optical assembly
Order code 71347354
Drawing number 1
Optical assembly
Optical assembly

Kit CUA261 Window 19mm Quartz

Optical assembly
Optical assembly
Order code 71347355
Drawing number 1
Optical assembly
Optical assembly

Kit CUA261 Window 21.5mm Quartz

Optical assembly
Optical assembly
Order code 71347356
Drawing number 1
Optical assembly
Optical assembly

Kit CUA261 Window 14mm Sapphire

Optical assembly
Optical assembly
Order code 71347357
Drawing number 1
Spare parts & accessories