The new scattered light dust monitor to detect lowest to medium dust concentrations in dry flue and process gas.
The D-R 320 is based on the back-scattered light principle. Thereby the light of a red laser diode illuminates the dust particles in the measuring volume of the flue gas duct. The light scattered backward by these particles is detected and evaluated.
A unique feature of the D-R 320 is the automatic background light compensation with means of a patented optical system with dual detector. This allows for an easy and quick Installation without any adjustment. A light trap is not required.
|Measuring principle||Back scattering|
US EPA 40 CFR 60 PS11
|Certificates||CE, QAL1 EN 14181 / EN 15267-1 / EN 15267-2 / EN 15267-3, MCERTS|
|Measuring location||In situ, mounted at stack, device is not in contact with sample gas|
|System components||D-R 320 M measuring head, sender/receiver unit |
D-TB 200 supply unit
D-ISC 100 universal operation unit (option)
|Self-check, protective functions||Automatic zero and reference point check |
Automatic contamination correction
Integrated purge air monitoring
Integrated purge air regulation
Fully-integrated fail safe shutter for protection at purge air failure (option)