D-R 290 Optical dust and opacity monitor

D-R 290 optical Dust is a certified optical transmission monitor to measure the opacity or dust concentration of sample gas. Suitable for plants which require the monitoring of dust missions by law. Two freely configurable analogue outputs allow monitoring of opacity and dust concentration values at the same time.

The device operates using the double-pass method according to the auto-collimation principle. 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.

Features D-R 290 optical Dust:

• In-situ measuring procedure, continuous measurement
• Semi-conductor source with long service life
• Super-wide band diode (SWBD), which provides more stable measuring results in comparison to devices with conventional LEDs
• Powerful microprocessor technology
• Measured value display on LC display in opacity, extinction or in mg/m3
• Automatic function tests with correction of measured values in relation to soiling
• Optics and electronics in a hermetically sealed unit – no smoke gas can enter device
• Easy adjustment without additional equipment
• Low-maintenance thanks to optimal purge air conduction

Applications D-R 290 optical Dust:

Plants in which the dust concentration quantity needs to be measured, e.g.:

• Furnace plants with semi-anthracite coal, brown coal, fuel oil and combined heating
• Converter plants, asphalt mixing plants
• Plants for cement manufacture.