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DURAG process & systems technology

Combustion Products

DURAG are a worldwide operating group of companies and one of the market leaders for intelligent solutions in the fields of combustion technology, environmental monitoring, data management as well as tunnel sensors.

DURAG offers modern technology, certified equipment and reliable services tailored to the individual needs of our customers worldwide since 1948.


The Video-based D-VTA 200 Thermography System is a modular system for monitoring industrial high temperature processes.

The Thermography Analysis System additionally offers:

  • Detection of the Temperature Distribution in side combustion chambers; analysis of unbalanced combustion processes
  • Burning analysis and slag monitoring in power plants
  • Visualization of flame post combustion chambers and flame front monitoring in waste incineration plants
  • Monitoring ore calcination and hazardous waste disposal in the chemical industry
  • Annealing and pusher furnace monitoring in the steel industry
  • Scale formation and melting charge control in the glass industry.

  • Temperature determination of each visible image point of the video sensor
  • Thermal analysis of the local temperature distribution
  • Temperature definition within freely definable measuring window and lines (ROI = Region of Interest / LOI = Line Of Interest).
  • Analysis of thermal samples to identify anomalies in the combustion process

Technical Data

Video system PAL, picture elements: 752(H) x 582(V), fixed focus
Thermography from total radiation Temperature range 1000°C – 2000°C
Optical alignment Sensor 0°: axially-parallel to sensor axis,
Sensor 45°: angled 45° to sensor axis
Optical field of view Sensor 0°: horizontal 72°, vertical 54°, diagonal 90°;
Sensor 45°: horizontal 48°, vertical 36°, diagonal 60°
Data interfaces on the system PC Modbus RTU
Modbus TCP/IP
Profibus DP
Auxiliary energy 100...230 V / 50...60 Hz, 500 VA
Gas temperature in combustion chamber Water-cooled sensor: < 2000°C
Ambient temperature Sensor / Retraction: -10°C…60°C
Field control cabinet: -10°C…55°C
Material Sensor: stainless steel 1.4571 / 1.4301
Sensor Control Unit: steel sheet, painted in RAL 7035
Dimensions Diameter of sensor tip: water-cooled 43 mm
Immersion depth in combustion chamber max. 450 mm from welding plate, other lengths optional
Space requirement for sensor / retraction device 1450 x 500 x 800 mm (LxWxH)
Sensor Control Unit 600 x 380 x 210 mm (HxWxD)
Cable length Sensor/Retraction – Field control cabinet 14 m
Connection Site /Control Room Optical Fiber, max. 1000 m
System PC 19“ industrial housing, 4 HE, depth 450 mm
Weights Sensor with retraction unit and carrier: 70 kg
Sensor Control Unit: 15 kg
Cooling water volume 350 l/h, 2,5…8 barg
Cooling water -temperature Inlet: < 45°C, Outlet: Temperature increase < 10°C
Cooling water quality Clean, chemically neutral, non-corrosive, Hardness:
Compressed air volume max. 25 Nm³/h
Compressed air pressure 5 – 8 barg
Compressed air temperature 5…40°C
Compressed air quality dry, free from dust, aerosols, oil