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D-LX 201

Product catalog summary

Overview: The D-LX 201 is a compact flame monitor designed for safe, flexible, and selective flame monitoring in large industrial combustion plants. It is particularly suitable for environments with multiple burners, complex processes, or various fuels.

Optical Flame Monitoring: The device uses optical flame monitoring by evaluating electromagnetic radiation in the ultraviolet, visible, and infrared spectrum. It analyzes flame-specific portions, intensity, frequency of flickering, and stability.

Safety and Design: The D-LX 201 is fail-safe and self-monitoring, featuring a direct relay output for flame signals and additional information via bus systems. It is available in different housing variants (P2, M5, M4) suitable for various environments, including Ex zones.

Specifications:

Spectral Sensitivity: UAF (280-410 nm), UA (190-520 nm), IG (780-1800 nm)
Electrical Connection: 24 V, 5 W, PELV
Ambient Temperature: -40°C to +85°C
Safety Time (FFDT): 1, 2, 3, 5 seconds
Relay Outputs: Flame relay, ready for operation relay
Ingress Protection: IP66/IP68, IP65 for MP3, IP66 for Ex-versions
Process Connection: G1¼” or NPT1¼”
Dimensions and Weight: Vary by housing type

Features and Benefits:

Wide dynamic range with automatic adaptation to flame brightness
Two-channel architecture for high safety and availability
Support for Functional Safety up to SIL3
Certified for diverse standards globally
Low maintenance requirements
Optional real-time flame stability analysis

Applications: Suitable for complex combustion plants, fossil-fueled power plants, thermoprocessing plants, chemical plants, refineries, waste incineration plants, petrochemical plants, steel industry, and cement plants.

Additional Information: The device provides local display of status parameters and flame intensity, ensuring safe process control even during load changes. It offers flexibility for different loads and fuels, preventing unscheduled burner shutdowns through preventative maintenance insights.

Catalog excerpts

DURAG GROUP D-LX 201 Compact flame monitor Safe, flexible and selective flame monitoring -for sure

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D-LX 201 Compact flame monitor Safe, flexible and selective flame monitoring – for sure Optical flame monitoring For large industrial combustion plants with many burners, complex process sequences or even several fuels the method of optical flame monitoring often is the most adequate one. It offers a way of monitoring that on one hand is burner selective as well as fuel selective, on the other hand can be adapted well to very variable combustion conditions. To monitor the flame the device evaluates electromagnetic radiation in the ultraviolet, visible and infrared region of the spectrum for its...

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Spectral sensitivity ► Applicable from -40°C up to +85°C, certified and without need for accessories to isolate, heat or cool ► Wide dynamic range through automatic adaptation to the brightness of the flame ► Consequent two channel architecture for highest safety coexisting with highest availability ► Ideal support for Functional Safety within safety chains up to SIL3 ► Different variants certified for diverse systems of standards for many parts of the world and many fields of application ► All variants also available for use with fibre optic systems (designation D-LX 721) ► Local display of...

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Safe process control Even during strong and fast load changes of the combustion plant the process can be controlled safely by the flame stability signal. Reactions in due time are possible. omplex combustion plants with a larger C Higher flexibility for different loads and different fuels Excellent selective flame monitoring and information concerning the stability of the flame makes it possible to run the plant in less stable regimes ombustion processes with continuous operation C and with changing fuels F ossil fuelled power plants (Lignite, hard coal, biomass, oil and gas) Thermoprocessing...

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Housings of the compact flame monitors (from left: M4, M5, P2) Optical access for M5 housing, direct view (left) and for combination with fibre optic systems

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All DURAG GROUP catalogs and technical brochures

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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