Continuous Opacity Monitoring System

for Emissions Compliance and Process Performance Monitoring

The DURAG D-R 290 is a certified optical transmission monitor for compliance under U.S. EPA 40 CFR 60 PS1 to measure the opacity or dust concentration of flue gases with medium to high dust concentrations.

The D-R 290 operates using the double-pass method according to the auto-collimation principle. The light beam traverses the measuring path twice. The attenuation of the light beam by the dust content in the measuring section is measured and evaluated.

Download our Opacity Applications Data
form to receive a quote for your opacity process and compliance monitoring requirements.
Continuous and contact-less measurement
Automatic zero and span check
Automatic measurement and correction of contamination of optical surfaces
Extremely powerful and stable super-wide band diode (SWBD) light source
Extremely low-maintenance
Fail-safe shutters with purge air monitoring as option
Compliant with US EPA 40 CFR 60 PS1 and ASTM 6216

Cement Manufacturing
Incineration Plants- Waste, Hazardous waste and Sewage Sludge Incineration Plants- Gas, Coal and Co-Firing Power Plants

Application Data

Sample Gas Type: 1Air, flue gas, non flammable process gas
Sample Gas Temperature: 0…600 °C (+32…1112 °F)
Inner Duct Pressure: -50...+50 hPa (optional higher)
Sample Gas Relative Humidity: 0...95% RF, non-condensing
Stack/Duct Inner Diameter: >0,7 m (>2,3 ft)

General Specifications
Measuring Principle: Back scattering
Conformities: EN 15267-3, EN 13284-2, EN 14181, 40 CFR 60 US EPA PS11
Certificates: CE, QAL1 DIN EN 14181 / DIN EN ISO 14956 / EN 15267-3, MCERTS
Measuring Location: In situ, mounted at stack, device is not in contact with sample gas
Measuring Sequence: Continuous
System Components: D-R 290 M measuring head, sender/receiver unit, D-TB 200 supply unit, D-ISC 100 universal operation unit (option)

Self-Check, Protective Functions

Automatic zero- and span check, (self-check cycle Automatic and on request)
Automatic soiling correction
Integrated purge air control
Integrated purge air regulation
Fully-integrated fail safe shutter for protection at purge air failure (option)

Electrical Connections

1x Mini-USB
1x DURAG device connector M23 (option)Digital interfaces1x USB (service)
1x DURAG Modbus
1x Modbus RTU / RS-485 (optional extension module)
1x Profibus DP (optional DIN rail converter)
1x Modbus TCP (optional software module)

Analogue outputs 1x 4...20 mA, 400 Ohm, isolated, assignment programmable up to 17x with extension modules (option)
Analogue inputs: None (standard), 16x with extension modules (option) 0…20 mA, 50 Ohm, zero point programmable

Digital Outputs
3x relays output, contact NC/NO, permissible load 48 V, 0,5 A potential free, assignment programmable
Up to 35x by extension modules (option)Digital inputs 1x digital input (standard), potencial free, assignment programmable
Up to 33x by extension modules (option)Power supply 90...264 VAC, 48...62 Hz, 200 VA
Display, status LEDs: Graphical LC display 120 x 92 mm, 5 LEDs for status display

Service software D‑ESI 100, including remote access via web-interface (option), requires PC with Windows XP® or Windows 7® OS
Remote access via USB / Modbus RTU (option) / Modbus TCP (option)

Mechanical Data
Dimensions (HxWxD): 220 x 335 x 145 mm, 286 x 335 x 145 mm (incl. cable glands)
Weight: approx. 5 kg
Material: Stainless steel 1.4301, painted blue RAL 5017

Particulate Installation, Configuration & Integration
AMP-Cherokee can install and configure your PM system to integrate with your current CEMS system. Our DAS ProLogix 60 offers an HMI interface for all your emissions data acquisition functions and can be added as an upgrade.

Systems Training
AMP-Cherokee offers training in on-site operations and maintenance for your plant personnel. Contact AMP-Cherokee for details.

On-Site Maintenance & Field Services
AMP-Cherokee offers total coverage of warranty repairs and ongoing maintenance. Our service include:
Factory Warranty Repairs
27x7 Emergency Response
Scheduled Maintenance
Parts and On-site Repairs

Contact AMP-Cherokee today at 800.399.4236 or
for a free consultation on your opacity compliance monitoring and process performance needs.
COMS Systems Durag D-R 290 Data Sheet COMS Systems Durag D-R 290 Application Questionnaire