Durag Group D-R 320 In Situ Dust Monitor

The DURAG D-R 320 is an in situ dust monitor designed for the continuous, contactless measurement of low to medium dust concentrations in dry flue and process gases. Using a backward-scattering measuring principle, the D-R 320 provides reliable dust monitoring in a compact, single-sided installation format without the need for optical alignment after installation. DURAG positions the D-R 320 for demanding emissions and process monitoring applications, including corrosive gases and potentially explosive atmospheres.

The D-R 320 is well-suited for facilities that need accurate dust monitoring at low concentration ranges while minimizing maintenance effort. DURAG highlights features such as automatic check functions, continuous integrated purge air monitoring and control, and maintenance and linearity checks without disassembly. The system is also designed for high availability under extreme plant conditions and is suitable for official emissions monitoring.

Available in Western Canada through Westech Industrial, the D-R 320 fits well within Westech’s emissions monitoring offering for industrial facilities requiring dependable dust measurement in dry gas streams. Westech supports customers across Canada with product support, process monitoring expertise, and integrated industrial solutions.

DURAG D-R 320 In Situ Dust Monitor

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PRODUCT FEATURES

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Description

  • Continuous dust measurement for dry flue and process gases
  • Contactless, in situ measurement using backward scattering
  • Smallest certified measuring range 0 … 7.5 mg/m³
  • Single-sided installation without optical alignment
  • Automatic check functions
  • Continuous, integrated purge air monitoring and control
  • Maintenance and linearity check without disassembly
  • Suitable for corrosive gases and potentially explosive atmospheres

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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:
Backward scattering, single-sided installation, contactless and in situ measurement
Measuring variables:
Stray light units, calibratable as dust concentration in mg/m³
Dust measuring range
Minimum 0 … 5 mg/m³, maximum 0 … 200 mg/m³
Certified measuring range:
0 … 7.5 mg/m³
Ambient installation conditions:
Indoor or outdoor installation
Ambient temperature:
-40 … +60 °C, with hazardous area variants noted separately
In-duct temperature:
Maximum 600 °C
In-duct temperature:
Maximum 250 °C, optional up to 1,000 °C
Relative humidity in duct:
0 … 95%, non-condensing
Inner duct diameter:
Minimum 0.7 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, integrated purge air monitoring and control

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PRODUCT FAQ's

What is the DURAG D-R 320 used for?
The DURAG D-R 320 is used for the continuous measurement of low to medium dust concentrations in dry flue gases and dry process gases. It is designed for emissions monitoring and process applications where reliable in situ dust measurement is required
How does the D-R 320 measure dust?
The D-R 320 uses a backward scattering measuring principle. It measures stray light and can 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.
What makes the D-R 320 easier to install and maintain?
The D-R 320 uses a single-sided installation design and does not require optical alignment after installation. It also includes automatic check functions and allows maintenance and linearity checks without disassembly.
Can the D-R 320 be used in difficult plant conditions?
Yes. DURAG states that the D-R 320 is suitable for corrosive gases, potentially explosive atmospheres, temperatures up to 600 °C, and complex gas conditions.
Can Westech Industrial provide support for the D-R 320 in Canada?
Yes. Westech Industrial supports customers across Canada with product support and industrial monitoring solutions. Westech can assist with product selection and help customers apply the right monitoring solution for their process or emissions application.