Opacity Monitor D-R 290
This is Wideband, this is the future!

View the Expanded Specifications

Download the
D-R 290 Brochure
(Adobe.pdf file; 1.0MB)

• Makes continuous in situ measurements
• Solid state light source for long-life
• Optimizes signal analysis due to the wide emission spectrum of the Super Broadband Light Source. Measurements are more stable than with conventional LED systems under fluctuating temperatures.
• High performance microprocessor technology
• LCD for opacity or optical density is calibrated in mg/m³
• Automatic zero and span check correct for build-ups of impurities
• Completely sealed, rugged optics and electronics contained in a hermetically
  sealed housing
• Simple alignment without special tools or laptop
• Advanced purge air system uses less air and reduces maintenance
• Programmable from either the control display unit or remote bus interface
• Data available as analog current or via
  bus interface
• Two analog output signals with adjustable measurement ranges
• No continuously moving parts
• Explosion-proof model available
• Built-in filter holder for quarterly audits and
  on-stack display allow one-person auditing
• State-of-the-art single board electronics in
  stack-mounted receiver employs a single light source and detector
• Data available as current loop or via bus interface with wire or fiber optics

Filter Monitor D-FW 230 / D-FW 231

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Download the
FW 230/231 Brochure
(Adobe.pdf file; 0.6MB)

• Filter monitoring based on the triboelectric measuring principal
• Ideal for bag house monitoring
• Continuous in-situ measuring
• Adjustable integration time
• Compact design
• Sturdy construction; no moveable parts
• Easy, straight forward installation and operation
• Fast on-line performance check capability
• Minimal maintenance requirements
• Early detection of filter malfunction
• Reduces filter replacement costs

Combined Sensor Probe D-RX 250

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Download the
RX 250 Brochure
(Adobe.pdf file; 0.5MB)

• Single-rod measurement probe for the simultaneous measurement of dust concentration [mg/Nm³], volume flow [Nm³/h], temperature [°C] and absolute pressure [hPa]
• Only one probe / mounting aperture in
  flue-gas duct
• Operation and evaluation unit can be connected at up to 1000 m distance via bus interface (Modbus, CANBus, or similar)
• For measurements according to the TA Luft emission standard, 13., 17. and 27. BlmSchV

Opacity and Dust Concentration Monitor D-R 280-10

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D-R 280 Brochure
(Adobe.pdf file; 0.6MB)

• 2-beam alternate light method
• Adjustable limit value, calibrating capability
  in mg/ml
• Automatic correction for window contamination
• Tested and approved to TÜV standards for required monitoring of emissions

Opacity Monitor D-R 281 AV

Download the
D-R 281 AV Brochure
(Adobe.pdf file; 0.6MB)

• Digital operation with microprocessor
• Auto collimation principle
• Provides analog outputs for opacity and
  optical density
• Optional dual channel capability
• Fully EPA compliant
• Double pass optical system for accuracy
  and sensitivity
• Modulated light beam to eliminate interference
• 5 selectable ranges for opacity
• 5 selectable ranges for optical density
• Automatic correction for stack exit diameter
• Automatic correction for window contamination

Dust Concentration and Soot Monitor D-R 300

Download the
D-R 300 Brochure
(Adobe.pdf file; 0.8MB)

• In situ measuring directly in the flue gas path
• Adjustable limit values, calibrating capability in mg/m3 or smoke spot number
• Automatic range selection
• Digital evaluation of the measuring signals
• Automatic system tests and correction of measuring values
• Auto calibration in 4-h cycles
• Tested and approved to TÜV standards for required monitoring of emissions

Beta Gauge Particulate Monitor F-904

View technical data on the F-904

Download the
F-904 Brochure
(Adobe.pdf file; 0.8MB)

• In situ measuring directly in the flue gas path
• Adjustable limit values, calibrating capability in mg/m³ or smoke spot number
• Automatic range selection
• Digital evaluation of the measuring signals
• Automatic system tests and correction of
  measuring values
• Auto calibration in 4-h cycles
• Tested and approved to TÜV standards for required monitoring of emissions

Beta Gauge Particulate Monitor F-904-K

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Download the
F-904-K Brochure
(Adobe.pdf file; 0.8MB)

• In situ measuring directly in the flue gas path
• Adjustable limit values, calibrating capability in mg/m³ or smoke spot number
• Automatic range selection
• Digital evaluation of the measuring signals
• Automatic system tests and correction of
  measuring values
• Auto calibration in 4-h cycles
• Tested and approved to TÜV standards for required monitoring of emissions