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 [癈] 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

Download the
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 T躒 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 T躒 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 T躒 standards for required monitoring of emissions

Beta Gauge Particulate Monitor F-904-K

View the expanded description

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 T躒 standards for required monitoring of emissions