Key Benefits

• QAL1-suitability tested in accordance with EN 15267
• Automatic control functions
• Flow-optimized design prevents the deposit of impurities
• Efficient operation due to electronically controlled blowers and heaters
• Modular system of compact units
• Suitable for official emission monitoring
• Low service cost for calibration and maintenance
• Low energy cost
• Easy and versatile installation

Applications

Suitable for dust concentration measurement in wet flue or process gases

• Emission measurement of wet flue gases
• Measurement of wet process gases with small to medium dust concentrations

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The post Durag D-R 909 Extractive Dust Monitor appeared first on Thomson Environmental Systems.

Two identical sensors alternately transmit and receive ultrasonic pulses. The system evaluates the transition times dependent on direction and calculates flow speed.

Key Benefits

• Extremely low maintenance
• Reliable measurement across the tunnel profile
• Stand-alone system, no control unit required
• Simple configuration
• Corrosion resistant against aggressive tunnel atmosphere
• Withstands lavation process in tunnels
• Sensors can be replaced quickly, no tools, no re-alignment required
• Signal transmission
  – per 4-20mA analog signal and 2 relays
  – per RS 485 bus via MODBUS RTU protocol
• Minimal spare requirements.

Applications

Slow measurement:

• Road tunnels
• Railway tunnels

 Signals for ventilation control system

• Monitors air flow speed
• Enables control of flow speed in case of fire

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The post Durag D-FL 220T ultrasonic flow velocity monitor for tunnels appeared first on Thomson Environmental Systems.

The D-R 290 uses 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.

Key Benefits

• 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
• Certified according to EN 15267-3
• Compliant with US EPA 40 CFR 60 PS1 and ASTM 6216

Advantages of the new generation

• Digital Modbus interface according to VDI 4201-3
• Convenient operation with remote access option
• All settings can be changed without opening the device
• Compatible with universal display and control unit D-ISC 100

Applications

Suitable for dust concentration measurement

• on incineration plants
• on power plants
• on cement plants
• in the metal industry
• on plants according to IED 2010/75/EC
• on converter plants and asphalt mixing plants
• on plants for the incineration of biomass

Suitable for measuring the opacity of flue gas

• on plants in accordance with U.S. EPA 40 CFR 60 PS1, special MCOC required
• on cruise and container ships.

Suitable for measurement of dust load in warehouses

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The post Durag D-R 290 Optical opacity-dust monitor appeared first on Thomson Environmental Systems.

Key Benefits

• extractive measurement, continuous measurement, dilution of the sample
• suitable for systems with variable gas speed
• hyperkinetic sampling
• allows calibration to measure the dust concentration in mg/m3
• single sided mounting to the chimney
• automatic zero and reference point check
• automatic measurement and correction of contamination of optical surfaces
• laser light source with long lifetime
• easy installation, adjustment and maintenance without a PC
• local control panel and LCD display.

Applications

Suitable for dust concentration measurement

• at garbage, hazardous waste and sewage sludge incinerators
• at power stations with gas, oil, coal or co-firing
• at systems behind the flue gas scrubber
• at systems behind de-sulfurization
• at systems with low exhaust temperature and constant or occasional dew point.

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The post Durag D-R 820 F Extractive Scattered Light Dust Monitor appeared first on Thomson Environmental Systems.

With its certification range of 0 … 7.5 mg/m³ the D-R 808 is ideally suited for monitoring very low dust concentrations.

Key Benefits

Applications

The post Durag D-R 808 Dust Monitor appeared first on Thomson Environmental Systems.

The D-R 320 is based on the back-scattered light principle – the light of a red laser diode illuminates the dust particles in the measuring volume of the flue gas duct. The light scattered backward by these particles is detected and evaluated.

A unique feature of the D-R 320 is the automatic background light compensation with means of a patented optical system with dual detector. This allows for an easy and quick installation without any adjustment. A light trap is not required.

Key Benefits

• single sided installation on a standard flange
• easy startup without adjustment
• automatic background light compensation without light trap
• automatic zero and reference point check
• automatic contamination control and correction
• integrated purge air regulation and purge air control
• minimum maintenance
• EN 15267 certified
• digital interface according to VDI 4201-3

Applications

• Continuous emission monitoring, e.g: on incineration plants generally
• on plants according to IED 2010/75/EU
• on waste, hazardous waste and sewage sludge incineration plants
• on cement manufacturing plants
• on power plants with gas, oil, coal or co-firing
• on plants for the incineration of biomass
• Monitoring of: ventilation units, filter units.

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The post Durag D-R 320 Dust Monitor appeared first on Thomson Environmental Systems.

Alternative product D-R 290 (2. G)

The D-R 290 works according to the transmission principle. The measurement is continuous, non-contact and without sampling in the exhaust gas flow. The D-R 290 is particularly suitable for monitoring medium to high dust concentrations.

For tunnel projects SMART/AQM

Air quality monitor with IoT visible opacity and gas sensor for use in tunnels. Visibility measurement is based on the scattered light principle, gas measurement with up to 3 electrochemical cells.

The DURAG D-R 220 was a compact and cost effective transmittance dust and opacity measuring device for monitoring medium to high dust concentrations in dry flue and process gas.

Key Benefits

• Non-contact measuring method
• Continuous measurement of opacity and dust concentration
• Suitable for medium or high dust concentrations on short to medium measuring lengths
• Automatic internal self-test, zero point and reference point check
• Manual contamination and linearity check
• Extremely low-maintenance due to self-test functions and LED source
• Easy installation and commissioning with universal operating unit and adjustment tool
• Convenient operation including remote access capability
• Cost-effective, small measuring system
• Operation with or without control unit

Applications

Suitable for dust concentration and opacity measurement

• Measurements with variable flow speeds
• Visibility Monitoring

Industries

• Power industry
• Biomass incineration
• Waste incineration
• Cement industry
• Crematories
• Process monitoring

Opacity measurements on ships

• Ro-Ro ships
• Cruise ships
• Container ships

Also suitable for

• Cost effective process monitoring
• Filter monitoring
• Measurement of ambient air dust-load in halls or warehouses

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The post Durag D-R 220 Dust and Opacity Monitor appeared first on Thomson Environmental Systems.

Applications

• Continuous emission monitoring in humid and aggressive gases
• Continuous emission measurement in small to very large duct diameters
• Volume flow measurement for process control and process optimisation

Features

• Continuous measurement of velocity and volume flow
• Contactless measurement 
• Corrosion-resistant ultrasonic transducers
• Measurement over the entire duct diameter
• Automatic check functions

Key benefits

• Certified for official emission monitoring
• Precise measurement of gas velocity and volume flow
• Suitable for measurement in humid and aggressive gases
• Long life time and high availability even under extreme plant conditions
• Low maintenance.

Industry Applications

• Plants requiring official approval acc. to IED 2010/75/EU
• Plants requiring compliance to 40 CFR 60 US EPA PS6
• Emission trading of green house gases GHG acc. to 2003/87/EG / MRR
• Power industry
• Biomass incineration
• Waste incineration
• Cement industry
• Crematories
• Process monitoring.

Certifications

CE, QAL1 (DIN EN 14181 / DIN EN ISO 14956 / DIN EN 15267-3), MCERTS, EAC

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The post Durag D-FL 220 Volume Flow Measuring System appeared first on Thomson Environmental Systems.

Features

• Continuous measurement of velocity and volume flow
• Double-sided installation for measurement over the entire duct diameter or cost-saving single-sided installation 
• Robust and resistant probe material for use in aggressive gases or at high temperatures (optional)
• Probe individually adapted to the application
• Automatic back purging unit (optional)
• Automatic internal self-test

Key Benefits

• Certified for official emission monitoring
• Precise measurement of velocity and volume flow even under demanding operating conditions
• Space-saving and easy single-sided installation (optional)
• Suitable for use in potentially explosive atmospheres (optional)
• Suitable for use in hot gases

Applications

Download Specifications

The post Durag D-FL 100 Volume Flow Measuring System appeared first on Thomson Environmental Systems.

Alternative product D-R 290 (2. G)

The D-R 290 works according to the transmission principle. The measurement is continuous, non-contact and without sampling in the exhaust gas flow. The D-R 290 is particularly suitable for monitoring medium to high dust concentrations.

For tunnel projects SMART/AQM

Air quality monitor with IoT visible opacity and gas sensor for use in tunnels. Visibility measurement is based on the scattered light principle, gas measurement with up to 3 electrochemical cells.

Download Specifications

The post Durag D-R 220T Visibility Monitor appeared first on Thomson Environmental Systems.