Product Overview Emission Monitoring Ambient Monitoring Environmental and Process Data Management Systems smart solutions for combustion and environment

Devices for measuring emissions and immissions Measurement Dust/ Opacity Measuring principle Backward Scattering DURAG Group Device Total Mercury Ambient Dust Forward Scattering Automatic zero and control point Automatic soiling correction Fail safe shutters Range switching Remote control unit smoke spot number Detection limit @ stack Ø 1 m Detection limit @ stack Ø 5 m Measuring ranges Sample collection/ heavy metal analysis Comparison of emission dust monitors according to application criteria Measuring range mg/m3 Duct diameter

D-R 320 Dust monitor New generation stray light dust monitor for low to medium dust concentrations Measuring principle System components ●● Easy installation on standard flange ●● Easy start-up without adjustment ●● Automatic background compensation without light absorber ●● Automatic zero and reference point check ●● Automatic contamination control and correction ●● Integrated purge air monitoring and purge air control ●● Minimum maintenance ●● Remote access possible ●● Digital interface according to VDI 4201-3 The D-R 320 is based on the back-scattered light principle. Thereby the light of...

Measuring device for smoke spot number The D-R 300 operates according to the scattered light method. The modulated light from a halogen lamp illuminates the dust particles in the exhaust duct. The scattered light reflected from these particles is measured and assessed. Extremely sensitive device for measuring smoke spot number Specifications ●● Measuring range: smoke spot number 0-3. Limit value II can be set as delayed disconnected contact ●● Calibration: VDI 2066, part 8. Features ●● In-situ measurement directly in the flue gas flow ●● Automatic system tests and correction of measured values...

D-R 290 Dust and opacity monitor Standard system for plants with small to medium dust concentrations Measuring principle System components ●● Contactless measurement ●● Extremely powerful and stable super-wide band diode (SWBD) light source ●● New SMD electronics with digital Modbus RTU interface ●● Automatic zero and reference point check ●● Automatic contamination control and correction ●● Easy adjustment without additional equipment ●● Extremely low maintenance ●● Remote access possible The device operates using the double-pass method according to the auto-collimation prin­ ciple. The light...

D-R 220 Dust and opacity monitor Ideally suited for monitoring medium to high dust concentration on smaller plants and in process applications Measuring principle ●● Automatic self check ●● Extremely low maintenance thanks to durable LED ●● Remote access possible ●● Cost-efficient and space-saving measuring system in the well-known DURAG quality The device operates using the double-pass method according to the auto-collimation prin­ ciple. The light beam traverses the measuring distance twice. The attenuation of the light beam by the dust content in the measuring section is measured and evaluated....

D-R 800 Dust monitor Scattered light dust monitor to measure small to medium dust emissions Measuring principle System components ●● Easy installation on one side of the duct ●● Easy installation, no alignment needed ●● Long lifetime as there are no moving parts inside the duct ●● Probe with corrosion resistant nano-tech coating ●● Automatic zero and reference point check ●● Automatic contamination control and correction The D-R 800 works according to the principle of forward scattering. The concentrated and modulated light of a laser diode penetrates the measuring volume. The forward-scattered...

D-R 820 F Dust concentration monitor for wet gases Measuring principle A defined partial current is withdrawn from the exhaust gas current. This partial current is continuously heated and diluted with clean, heated air directly in the sampling probe. This immediately lowers the relative moisture and aerosols get evaporated in the heated System for continuous extractive dust concentration ­ easurement m in accordance with the scattered light principle probe. The partial current is optically measured in the measuring chamber. The signal is corrected by the measured dilution ratio and is thus a...

Extractive dust concentration monitor ●● Measuring device with PLC control in protective cabinet ●● Heated sample probe with titanium sample nozzle ●● Heated sampling line ●● Filter tape in gas-proof filter holder Dust monitor especially for wet flue gases and for the monitoring of blast furnace gas Options ●● Heated dilution line for high dust concentrations or after wet scrubbers ●● Dust sampling option for heavy metal analysis ●● Special design F-904-20/BFG for measurement of the dust concentration in toxic and explosive blast-furnace or converter gas with shut-off valves for the sample gas...

D-FW 230 231 240/Ex Filter monitor Filter monitor for ­ fficiency e monitoring after filter plants and for continuous dust measuring in dry emissions Compact and rugged design Good price/performance ratio Ideal for monitoring bag filters Minimal maintenance required Early detection of filter malfunctions Savings in cost, as no preventative filter exchange is necessary Applications ●● Power stations ●● Bag filter plants of all types ●● Dust extraction plants in the production industry ●● Waste incineration plants ●● Crematoriums ✖ Not suitable for use directly behind electro­static precipitators...

D-RX 250 Combined probe ­sensor Single rod measurement probe for simultaneous measurement of - Dust concentration [mg/Nm³] - Volume flow [Nm³/h] - Temperature [°C] - Absolute pressure [hPa] Measuring principle ●● Only one probe/ installation opening in the exhaust gas channel ●● Compact design ●● No moving parts ●● Automatic zero and reference point check ●● The dust concentration is determined according to the triboelectric measuring principle. The tribo probe measures the electric charge of the impinging particles. ●● The measurement of the volume flow is based on the mechanical action principle....