Online Particle Measurement in Gas

Ambient Air Dust Concentration Monitor F701-20

Ambient air particulate monitor to detect TSP, PM10 or PM2.5 in ambient air for use in industrial or governmental ambient air monitoring networks.

• Determination of dust mass concentration in ambient air independent of matter
• C-14 method, no measurable decrease in activity
• Lowest radioactivity of all beta gauges, usable without license for handling radioactive substances acc. to governmental regulations
• Automatic zero point correction
• Sample gas flow, stabilized 1 m3/h
• Suction of a constant sample gas flow rate independent of ambient temperature and pressure
• Repeated sampling on the same spot
• Collected dust sample available for component analysis, e.g. heavy metals
• RS-232 interface and analog output, status signal
• Dust concentration:0 to 100 µg/m3 to 0 to 10 mg/m3
• Temperature at sample inlet: -20°C to +50°C
• Ambient air pressure: 800hPa to 1300hPa
• Operating temperature for the analyser: 0°C to +40°C

Scattered light dust monitor DR320

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.

• single sided installation on a standard flange
• easy startup without adjustment
• automatic background light compensation without light trap
• automatic zero and reference point check
• automatic contamination control and correction
• integrated purge air regulation and purge air control
• minimum maintenane
• EN 15267 certified
• digital interface according to VDI 4201-3
• Sample gas type: Air, flue gas, non flammable process gas
• Sample gas temperature: 0 to 600 °C
• Inner duct pressure: -50 to +50 hPa
• Sample gas relative humidity: 0 to 95% RF, non-condensing
• Stack/duct inner diameter: >0.7 m
• Measuring range dust concentration: min. 0 to 5 mg/m3, max. 0 to 200 mg/m3