Durag Group D-R 290 Dust and Opacity Monitor

The DURAG D-R 290 is a dust and opacity monitor designed for continuous, contactless measurement of medium to high dust concentrations in dry flue and process gases. Using a transmission measuring principle, the D-R 290 provides reliable in-situ monitoring for emissions and process applications, including difficult plant conditions where durability and stable performance are critical. DURAG states that the D-R 290 exceeds EPA and ASTM standards and was developed to comply with US EPA 40 CFR Part 60, PS 1, PS 11, and ASTM 6216-20 Annex A1.

The D-R 290 is well-suited for facilities that need dependable dust or opacity monitoring without direct contact with the process gas. Features such as automatic contamination correction, automatic check functions, and maintenance and linearity checks without disassembly help reduce maintenance effort while supporting long-term measurement reliability. DURAG also positions the system for official emissions monitoring, with a smallest certified measuring range of 0 … 15 mg/m³.

Available in Canada through Westech Industrial, the D-R 290 fits well within Westech’s emissions monitoring and analytical offering. Westech supports Canadian industry with process monitoring, emissions monitoring, product support, and integrated solutions, backed by 24/7 availability and decades of experience in process control and instrumentation.

Durag_D-R 290 Dust and Opacity Monitor

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Description

  • Continuous dust and opacity measurement
  • Contactless, in-situ transmission measurement
  • Smallest certified measuring range 0 … 15 mg/m³
  • Automatic measurement and correction of contamination
  • Automatic check functions
  • Maintenance and linearity check without disassembly
  • Developed to exceed EPA and ASTM requirements

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Manufacturer Info

The DURAG Group is a global provider of intelligent solutions for process and environmental monitoring, combustion and safety monitoring, gas analysis, and continuous emissions monitoring systems. With decades of industry experience, DURAG supports safer, more efficient, and more sustainable industrial operations.

Website: https://www.durag.com/

SPECS

Measuring principle:
Transmission, contactless and in-situ measurement
Measuring variables:
Extinction, opacity, calibratable as dust concentration in mg/m³
Dust measuring range
Minimum 0 … 80 mg/m³, maximum 0 … 4,000 mg/m³
Certified measuring range:
0 … 15 mg/m³
Opacity measuring range:
Minimum 0 … 20%, maximum 0 … 100
Ambient installation conditions:
Indoor or outdoor installation
Ambient temperature:
-40 … +60 °C
In-duct temperature:
Maximum 250 °C, optional up to 1,000 °C
Inner duct diameter:
0.5 … 18 m
Interfaces:
4…20 mA analog output, digital output, RS 485 Modbus RTU, USB, LED status display
Check functions:
Automatic zero point and reference point measurement, automatic contamination measurement and compensation

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PRODUCT FAQ's

What is the DURAG D-R 290 used for?
The DURAG D-R 290 is used for continuous dust and opacity monitoring in dry flue gases and dry process gases. It is designed for applications where facilities need reliable emissions or process dust measurement under medium to high dust concentrations.
How does the D-R 290 measure dust?
The D-R 290 uses a contactless transmission principle for in-situ measurement. It can measure opacity and extinction, and it can also be calibrated to display dust concentration in mg/m³.
Is the D-R 290 suitable for emissions monitoring applications?
Yes. DURAG states that the D-R 290 is suitable for official emission monitoring and was developed to comply with US EPA 40 CFR Part 60, PS 1, PS 11, and ASTM 6216-20 Annex A1.
Can the D-R 290 be used in difficult plant conditions?
Yes. DURAG describes the D-R 290 as suitable for difficult plant conditions, including dry flue gas measurement at the stack, temperatures up to 1,000 °C, corrosive flue gases, and plants with complex gas matrices.
Can Westech Industrial provide support for the D-R 290 in Canada?
Yes. Westech Industrial supports customers across Canada with product support, emissions and process monitoring solutions, and integrated industrial expertise. Westech also highlights 24/7 availability and long-standing experience in process control and instrumentation support.