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Teqwave I – Ultrasonic concentration meter

Smart, flexible insertion measuring device – individually for your process

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Have questions about this product?

Teqwave I – Ultrasonic concentration meter

Smart, flexible insertion measuring device – individually for your process

Get a quote

Benefits

  • Easy and efficient – real-time in situ liquid analysis
  • Full transparency – constant monitoring of product quality without sampling
  • Highest process safety – reliable metering due to robust, maintenance-free sensor
  • Cost-saving – fewer measuring points due to multivariable measurement
  • Customized usage – innovative application concept, expendable for changing measuring tasks
  • Simplified process control – user-friendly operation and clear status visualization
  • Local data backup – integrated data storage for measured values up to 7,5 years
FLEXible answers to individual needs
Current product

Teqwave I – Ultrasonic concentration meter

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  • Specialized products
  • Designed for demanding applications

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

Photo of concentration measuring device Teqwave I for accurate real-time liquid analysis in vessels
Teqwave I
Specifications
Concentration
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Description

The insertion measuring device Teqwave I was developed for accurate real-time liquid analysis in vessels and larger pipes. Dedicated to in situ concentration measurement, Teqwave monitors various measuring parameters at once, and thus reduces operational expenditure. Match your Teqwave transmitter perfectly to your production needs: You can flexibly define and extend your application range.

Field of application
  • The acoustic waveguide measures precisely and reliably, even the smallest changes are detected
  • Continuous concentration measurement of liquids in vessels or large pipes.

Device properties

  • Insertion length: 180 mm (7 in) or 500 mm (20 in)
  • Accurate and independent of flow profile
  • Industry-compliant, easy installation via DIN rail
  • 3.5" TFT color touch screen or LED indication
  • 4-20 mA, Modbus TCP
Benefits
  • Easy and efficient – real-time in situ liquid analysis
  • Full transparency – constant monitoring of product quality without sampling
  • Highest process safety – reliable metering due to robust, maintenance-free sensor
  • Cost-saving – fewer measuring points due to multivariable measurement
  • Customized usage – innovative application concept, expendable for changing measuring tasks
  • Simplified process control – user-friendly operation and clear status visualization
  • Local data backup – integrated data storage for measured values up to 7,5 years
Downloads
Most downloaded
Technical Information (TI)
Teqwave F/I Technical Information Measuring device with surface acousticwave technology
Smart, flexible concentration measuring device – individually for your
process
English version - 09/2019
Download
Short Instruction (KA)
Teqwave F/I Brief Operating Instructions Device with acoustic surface wave technology
English version - 09/2019
Download
Operating Instruction (BA)
Teqwave F/I Modbus TCP Operating Instructions Measuring device with acoustic surface wave technology
English version - 09/2019
Download
The CAD Drawings will be available after the configuration.
All downloads
27 Downloads
Technical Information (TI)
Most downloaded
Teqwave F/I Technical Information Measuring device with surface acousticwave technology
Smart, flexible concentration measuring device – individually for your
process
English version - 09/2019
Download
Operating Instruction (BA)
Teqwave F/I Modbus TCP Operating Instructions Measuring device with acoustic surface wave technology
English version - 09/2019
Download
Short Instruction (KA)
Most downloaded
Teqwave F/I Brief Operating Instructions Device with acoustic surface wave technology
English version - 09/2019
Download
Installation Instructions (EA)
EA Replacing the connection cable Teqwave F, I, T, H
English version - 09/2026
Download
Special Documentation (SD)
UKCA marking Flow, density, concentration, viscosity
English version - 11/2022
Download
Special Documentation (SD)
SD Teqwave EAC Special Documentation
English version - 08/2025
Download
Special Documentation (SD)
Concentration App Questionaire Concentration App
Questionaire
English version - 11/2024
Download
Special Documentation (SD)
SD Teqwave FIH Download Software and Documentation
English version - 09/2026
Download
Case Study (CS)
Optimized cleaning for maximum product quality thyssenkrupp measures cleaner concentrations with Teqwave I
English version - 01/2022
Download
Case Study (CS)
Waldbrand Distillery monitors alcohol concentration using Teqwave Simplified quality control in distilleries
English version - 05/2022
Download
Case Study (CS)
Optimiertes Reinigen für maximale Produktqualität thyssenkrupp misst Reinigerkonzentrationen mit Teqwave I
German version - 01/2022
Download
Case Study (CS)
Messbar und testbar: Monitoring mit Teqwave Borer Chemie AG vertraut auf Endress+Hauser für
effiziente Bauteilreinigung
German version - 01/2023
Download
Case Study (CS)
Measurable and testable: Monitoring with Teqwave Borer Chemie AG relies on
Endress+Hauser for efficient component cleaning
English version - 01/2023
Download
Case Study (CS)
Die Waldbrand Destillerie überwacht Alkoholkonzentration mit Teqwave Vereinfachte Qualitätskontrolle in Brennereien
German version - 05/2022
Download
Innovation (IN)
Teqwave F/I/T The smart and flexible concentration measurement device
English version - 10/2020
Download
Innovation (IN)
Teqwave Il dispositivo intelligente e flessibile per la misura
della concentrazione
Italian version - 11/2017
Download
Innovation (IN)
Teqwave F/I/T Das smarte und flexible Konzentrationsmessgerät
German version - 10/2020
Download
AI (Application note)
Teqwave Individual and smart concentration measurement
(Bath contamination)
English version - 10/2020
Download
AI (Application note)
Teqwave Individual and smart concentration measurement
(Parts cleaning)
English version - 10/2020
Download
AI (Application note)
Teqwave Individuelle und smarte Konzentrationsmessung
(Reinigung, Reiniger)
German version - 10/2020
Download
AI (Application note)
Teqwave Individuelle und smarte Konzentrationsmessung
(Badverschmutzung)
German version - 10/2020
Download
EU Declaration
Product family: Teqwave Product root: D9FB-, D9HB-, D9IB-, D9TB-
Declaration number: EC_00607_02.17
English version - 09/2021
Download
UK Conformity Assessed
Product family: Teqwave Product root: D9HB-
Declaration number: UK_00364_01.21
English version - 09/2021
Download
Product Carbon Footprint Information
Product family: , Teqwave Product root: D9IB-
Declaration number: ED_00117_01.24
English version - 10/2024
Download

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Selection of compatible products

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Spare parts and accessories

Cable/cable accessories
Cable/cable accessories

Cable remote version, Teqwave

Cable/cable accessories
Cable/cable accessories
Order code XPD0047-
Drawing number 61
Sensoric
Sensoric

Teqwave I, D9IB, Insertion

Sensoric
Sensoric
Order code D9IB-
Drawing number 60

Teqwave Transmitter, DK9BXX

Order code DK9BXX-
Drawing number 89

Teqwave Concentration Apps

Order code DK9500-
Spare parts and accessories
Photo of concentration measuring device Teqwave I for accurate real-time liquid analysis in vessels
Teqwave I

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Photo of concentration measuring device Teqwave I for accurate real-time liquid analysis in vessels
Teqwave I
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CAD Drawings
Configuration support

Unsure about configuration details?

Our experts can help, whatever stage your configuration is at.

Add your product to the cart and request a quote. Whether it is un-configured, partially configured, or fully configured, our experts will contact you to complete the configuration and provide your quote.

Have questions before you start?

Contact us

Spare parts and accessories

Cable/cable accessories
Cable/cable accessories

Cable remote version, Teqwave

Cable/cable accessories
Cable/cable accessories
Order code XPD0047-
Drawing number 61
Sensoric
Sensoric

Teqwave I, D9IB, Insertion

Sensoric
Sensoric
Order code D9IB-
Drawing number 60

Teqwave Transmitter, DK9BXX

Order code DK9BXX-
Drawing number 89

Teqwave Concentration Apps

Order code DK9500-
Spare parts and accessories

Selection of compatible products

/