E&H D9IB Ultrasonic concentration meter

E&H D9IB Ultrasonic concentration meter

Product Overview

The Endress+Hauser Teqwave I — designated by product code D9IB — is a smart, flexible insertion-type ultrasonic concentration meter engineered for real-time in-situ liquid analysis in vessels and large-diameter pipes-1. Part of the comprehensive Teqwave family (which includes inline, hygienic, and portable variants under codes D9FB, D9HB, D9IB, and D9TB respectively), this instrument delivers continuous concentration monitoring with exceptional accuracy, significantly reducing operational expenditure through multivariable measurement capability–1.

Designed around Endress+Hauser‘s proprietary acoustic surface wave technology, the Teqwave I measures multiple parameters simultaneously — including concentration, density, sound velocity, and temperature — from a single insertion point. This approach eliminates the need for multiple discrete sensors, simplifies process control architecture, and reduces both capital investment and long-term maintenance costs-9-2.

Key Technical Specifications

Measured Variables

Maximum Measurement Error

Process Conditions

Wetted Materials

Standard: Stainless steel 1.4571 (316 Ti)

Alternative materials available upon request

Insertion Length Options

Standard: 180 mm (7 in)

Extended: 500 mm (20 in)

Electrical & Communication

Environmental Protection

Sources:-2-1-15

Complete Model Breakdown: D91B‑AADBAABAASD2AA1

Endress+Hauser employs a structured product ordering code system that encodes specific device configurations. Taking the example D91B‑AADBAABAASD2AA1, the code segments can be interpreted as follows:

Base Product Identification

D9 : Product family identifier — Teqwave series ultrasonic concentration meters.

1 : Designates the insertion‑type configuration (Teqwave I). The product code D9IB is the root identifier for this device series, where “I” denotes “Insertion.” The alternative “1” in this position reflects a variant encoding used in certain ordering systems.

B : Indicates the generation or version level within the product family.

Segment‑by‑Segment Breakdown

This model code is fully configurable through Endress+Hauser‘s online ordering tool, allowing users to tailor the device to specific process requirements including insertion depth, wetted materials, communication protocols, and hazardous area certifications. The example D91B‑AADBAABAASD2AA1 represents a standard industrial configuration suitable for non‑hazardous general process applications with full digital communication capability.

Sources:-38-

Teqwave I Complete Product Codes

The Teqwave I series is available under the D9IB product root, with full ordering codes following the pattern exemplified by D9IB‑XXXXXXXXXXXX. Additional complete reference codes from the Teqwave family include:

D9FB‑XXXXXXXXXXXX — Teqwave F inline (pipe‑mount) concentration meter

D9HB‑XXXXXXXXXXXX — Teqwave H hygienic‑design inline meter for food/beverage

D9TB‑XXXXXXXXXXXX — Teqwave T portable concentration meter

Complete configuration is managed via Endress+Hauser‘s product configurator, where users specify each digit position based on process requirements.

Sources:–38

Field of Application

The Teqwave I ultrasonic insertion concentration meter is specifically developed for accurate real-time liquid analysis in vessels and larger pipes where traditional inline sensors are impractical or impossible to install. Unlike clamp‑on or inline devices, the insertion design allows retrofitting into existing tank or pipeline infrastructure without major process interruption-1-2.

Target Applications

Chemical processing — real‑time concentration monitoring of acids, bases, solvents, and reaction mixtures

Food & beverage — Brix measurement, syrup concentration, beverage blending verification

Pharmaceutical manufacturing — active ingredient concentration in batch reactors and holding vessels

Industrial cleaning systems — detergent concentration monitoring for component cleaning (CIP processes)

Wastewater treatment — polymer dosing control and flocculant concentration

Oil & gas — produced water monitoring and chemical injection control

The device‘s ability to measure through acoustic waveguide technology ensures precise results even with minor concentration changes, making it suitable for applications where process variability must be tightly controlled-1.

Key Benefits

Easy & Efficient — Real‑Time In‑Situ Liquid Analysis

The Teqwave I eliminates the need for manual sampling and laboratory analysis. Process operators receive continuous concentration data directly on the instrument display or via the control system, enabling immediate response to process deviations-9-1.

Full Transparency — Constant Quality Monitoring Without Sampling

Continuous measurement means no gaps in process visibility. Product quality is monitored 100% of the time, not just at periodic sample intervals, dramatically reducing the risk of off‑spec production runs reaching downstream processes-9-15.

Highest Process Safety — Robust, Maintenance‑Free Sensor

The sensor contains no moving parts and requires no routine maintenance. The stainless steel construction (1.4571/316 Ti) provides exceptional corrosion resistance, while the solid‑state design eliminates mechanical failure modes common to alternative concentration measurement technologies-9-15.

Cost‑Saving — Fewer Measuring Points Due to Multivariable Measurement

Traditional approaches often require separate density, temperature, and conductivity sensors to infer concentration. The Teqwave I measures all relevant parameters simultaneously from a single insertion point, reducing instrument count, installation complexity, and ongoing calibration costs-9-15.

Customized Usage — Innovative, Expandable Application Concept

The transmitter platform can be configured and reconfigured to match changing production requirements. Concentration apps — pre‑programmed application modules containing sound velocity and acoustic density characteristics for specific fluid systems — allow the same hardware to address different measurement tasks with minimal reconfiguration effort-9-15.

Simplified Process Control — User‑Friendly Operation

The 3.5″ TFT color touch screen provides intuitive access to measurement data, diagnostic information, and configuration parameters. Clear status visualization through both the display and LED indicators reduces operator training requirements and minimizes the risk of configuration errors-9-15.

Local Data Backup — Integrated Storage for Up to 7.5 Years

Onboard data storage eliminates reliance on external historians for short‑term trend analysis and troubleshooting. The device retains measured values for an extended period, supporting quality traceability and process optimization without additional infrastructure costs-9-15.

Technology: Acoustic Surface Wave Measurement

The Teqwave I employs acoustic surface wave (also known as surface acoustic wave, SAW) technology to determine liquid concentration with exceptional precision. An acoustic waveguide transmits ultrasonic signals through the process fluid; the device measures both sound velocity and acoustic density simultaneously. The concentration is then calculated using empirically derived algorithms calibrated for the specific fluid system via the concentration app data sheet-2-38.

This technology offers distinct advantages over alternative concentration measurement methods:

Unaffected by flow profile — accurate results regardless of turbulence or velocity gradients

Independent of optical clarity — works in opaque, colored, or particle‑laden fluids

No conductivity requirements — suitable for deionized water, hydrocarbons, and other non‑conductive media

Temperature‑compensated — built‑in temperature measurement enables real‑time compensation

FLEX Product Selection Program

Endress+Hauser‘s FLEX program allows users to select the appropriate device capability level based on application complexity and requirements-1-2:

The Teqwave I falls within the Xpert selection tier, reflecting its specialized insertion design and advanced measurement capabilities for challenging vessel and large‑pipe applications-1.

Certifications & Compliance

CE marking

C‑Tick (RCM)

EAC approval for Eurasian Economic Union (approval number: EAC_KZ‑7500533.13.12.02461)-38

UKCA marking (UK market)-39

EU Declaration of Conformity

Certification packages for hazardous area operation are available upon request.

Ordering Information

To order a complete Teqwave I system, specify the full D9IB‑XXXXXXXXXXXX product code using Endress+Hauser‘s online configuration tool. Key selection parameters include:

Insertion length (180 mm or 500 mm)

Wetted material (standard 1.4571 or custom)

Communication protocol (4‑20 mA, Modbus TCP, or combination)

Display option (TFT color touch screen or LED only)

Concentration app (application‑specific calibration data)

Approvals package

For the example configuration D91B‑AADBAABAASD2AA1, consult the product datasheet or contact your local Endress+Hauser sales partner for complete technical documentation and pricing.

Technical Documentation

Endress+Hauser provides comprehensive documentation for the Teqwave I series:

Technical Information (TI) — TI01381DEN_0219 (English), TI01381DZH_0219 (Chinese)-39

Operating Instructions (BA) — BA01823DEN_0219 (English Modbus TCP version)-39

Brief Operating Instructions (KA) — KA01371DEN_0219-39

Installation Instructions (EA) — EA01229DA2_0221 (connection cable replacement)-39

Special Documentation (SD) — UKCA marking, EAC approval