1. Catalogs
  2. Xylem Analytics
  3. UV-VIS-Chemical-free-measurement
video corpo

UV-VIS-Chemical-free-measurement

UV-VIS-Chemical-free-measurement

UV-VIS-Chemical-free-measurement

Product catalog summary
Introduction
The document introduces WTW spectral sensors designed for reagent-free measurement of chemical oxygen demand (COD), nitrate (NO3), and nitrite (NO2) directly in the process. These sensors utilize an innovative spectral measurement technique that allows for continuous monitoring without the need for sample preparation or reagents.

Key Features
  • Reagent-Free Measurement: The sensors provide direct measurement in the process, eliminating the need for reagents and reducing operational costs.
  • Easy Handling: No sample taking or preparation is required, and minimal cleaning effort is needed due to the integrated ultrasonic cleaning system.
  • High Measuring Accuracy: Continuous measurement with optimized referencing ensures excellent zero-point and long-term stability, with compensation for interferences.
  • Durability: Constructed with robust materials like titanium and PEEK, the sensors are resistant to corrosion and mechanical shocks.

Applications
  • Suitable for influent measurement, detection of influent peaks, control/regulation of recirculation, process optimization of aeration, and effluent control.
  • Integration with the IQ SENSOR NET allows for additional parameter measurements.

Sensor Types and Specifications
  • UV-VIS Sensors (200-720 nm): Measure C-parameters, nitrate, and optional TSS.
  • UV Sensors (200-390 nm): Required for distinguishing between nitrate and nitrite.
  • Two gap sizes are available for different concentration levels: Variant 701 (1 mm) for higher concentrations and Variant 705 (5 mm) for lower concentrations.

Technical Data
  • Measurement ranges for various parameters such as COD, TOC, SAC, DOC, BOD, UVT, NO3-N, and NO2-N are provided, with specific ranges for influent and effluent conditions.
  • Materials include titanium housing and sapphire glass windows, with pressure resistance up to 1 bar and operational temperature range from 32°F to 113°F.

Ordering Information
  • Detailed ordering information for different sensor models and accessories is provided, optimized for municipal wastewater treatment plants.

Company Information
Xylem is a global water technology company focused on developing advanced solutions for water challenges. The document provides contact information for regional sales offices and emphasizes Xylem's commitment to sustainable solutions.
See more

Catalog excerpts

UV-VIS-Chemical-free-measurement-1

Chemical - free measurement: COD, NO3 and NO2 THE WTW SPECTRAL SENSOR

 Open the catalog to page 1
UV-VIS-Chemical-free-measurement-2

Innovative spectral measurement technique ... The optical method of the sensors enables a continuous measurement of carbon- and nitrogen-parameters directly in the medium. For simultaneous measurement of several parameters the information of the whole spectrum is evaluated during the process. At the same time cross-sensitivities of single parameters and interferences such as turbidity are eliminated. Easy handling • No sample taking and preparation • No reaction times • Minimal cleaning effort Minimal operational costs • No routine service necessary • No use of reagents • No spare parts such...

 Open the catalog to page 2
UV-VIS-Chemical-free-measurement-3

... with the unique WTW ultrasonic cleaning system The integrated ultrasonic source induces oscillation of the measurement windows. The resulting movement of the surface prevents the attachment of dirt and fouling right from the start. This guarantees comparable and reliable measuring results during continuous operation. Cleaning effect of the WTW ultrasonic cleaning technology ... extremely resistant Robust materials such as Titanium and Peek down to the last screw Integrated shock protection Usage even in corrosive media High measuring accuracy • Continuous measurement directly in the process...

 Open the catalog to page 3
UV-VIS-Chemical-free-measurement-4

• Influent measurement • Detection of influent peaks • Control/regulation of recirculation • Process optimization of the aeration • Effluent control *With the IQ Sensor Net several additional parameters can be measured -visit our website www.WTW.com/en/iqsn (For convenience use our QR code). UV-VIS sensors (200-720 nm) With these sensors C-parameters, Nitrate and optional TSS can be measured. • Nitrate • COD/TOC/DOC/BOD/SAC/UVT • TSS UV-sensors (200-390 nm) To distinguish between Nitrate and Nitrite these sensors with a higher resolution are required. • Nitrate • Nitrite • COD/TOC/DOC/BOD/SAC/UVT...

 Open the catalog to page 4
UV-VIS-Chemical-free-measurement-5

The spectral sensors at a glance: CarboVis: for Systems 2020 and 282/284 Measuring parameters: COD/TOC/DOC/ BOD/SAC/UVT, optional TSS Measuring parameters: Nitrate, Nitrite Measuring parameters: Nitrate, COD/ TOC/DOC/BOD/SAC/UVT, optional TSS Measuring parameters: Nitrate, Nitrite, COD/TOC/DOC/BOD/SAC/UVT 3 Effluent: Nitrate, Nitrite, COD/TOC/ DOC/BOD/SAC/UVT, TSS 2 Aeration: Nitrate, Nitrite, COD/DOC/SAC/UVT Influent: Nitrate, Nitrite, COD/TOC/ DOC/BOD/SAC/UVT, TSS In wastewater treatment plants increased Nitrite values can be a sign for an optimization demand of the biological processes. With...

 Open the catalog to page 5
UV-VIS-Chemical-free-measurement-6

* The quoted measuring ranges are theoretically possible. In practice, real measuring ranges exist that are given by the limits of photometric determination. The limits are significantly influenced by the light scattering due to solids and the absorption of accompanying substances (sample matrix). UV-VIS sensors Description Order No. CarboVis 701 IQ UV-VIS sensor for in-situ measurement of COD, TOC, DOC, BOD, SAC and UVT in the 481 048 influent, aeration and effluent. Optimized for municipal wastewater treatment plants. CarboVis 701 IQ TS UV-VIS sensor for in-situ measurement of COD, TOC, DOC,...

 Open the catalog to page 6
UV-VIS-Chemical-free-measurement-7

(Sensor holder EH/U 170 in combination with swing mounting assembly EH/F 170-1,5) (Supplement kit Vis Set/EH in combination with swing mounting assembly EH/F 170-1,5) ESaftS For additional accessories see our brochure www.WTW.com/en/onl-accessories. 'Product Details" for Online Instrumentation or go to

 Open the catalog to page 7
UV-VIS-Chemical-free-measurement-8

Xylem |'zil0nn| 1) The tissue in plants that brings water upward from the roots; 2) a leading global water technology company. We're a global team unified in a common purpose: creating advanced technology solutions to the world's water challenges. Developing new technologies that will improve the way water is used, conserved, and re-used in the future is central to our work. Our products and services move, treat, analyze, monitor and return water to the environment, in public utility, industrial, residential and commercial building services settings. Xylem also provides a leading portfolio of...

 Open the catalog to page 8
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.