Working Principle / Technology | Beta Attenuation |
Measuring Range | 0-10, 0-100, 0-1000 μg/ Nm3 |
Sampling Time | Continuously sampling |
Sample flow rate | 16.5 Liters/minute |
Filter Tape size | Manual Calibration Performed check with Zero and Span filters |
Span Check | 14C (carbon-14), 60 µCi ±15 µCi (2.22 MBq) |
Beta Source | -30° to +55° C |
Operating Temperature Range | 0 to 90% RH, non-condensing |
Operating Humidity Range | 0-1 V, 4-20mA |
Analog Output | RS 232 / RS 485 |
Digital Output |
Vasthi PM 10 and PM 2.5 Particulate Matter Monitors works Principle of Particulate matter10 analyzer uses the technology: Ambient particulate matter, Beta –ray detector for measuring the concentration Particulate matter whose aerodynamic equivalent diameter is smaller than 2.5/10μm on rolled filter tape. The instrument adopts low-radiation C14 as the radioactive source. The emitted β-ray passes through the filter membrane with contaminants and will be received by the detector. The detector[1] is composed of a photo-multiplier tube (or Geiger detector), plastic scintillator, and counter. The thickness can be analyzed quantificational according to β-ray energy that the detector received, and then the PM 10 and PM 2.5 concentration in the air can be calculated received, and then the pm 2.5 and pm 10 concentration in the air can be calculated.
V-air9009 series will work on Beta Attenuation technology
Betaray Attenuation technology
Usually for Europe states pollution level very low so they a. collect the sample continuously for 40 minute at 16.5 Liters / minute and make average. For Indian conditions we can measure as per user required time or pollution possibilities
45 days @ 1 hour per sample
Have a question about our Device? Don’t hesitate to contact us directly using the form on this page or by visiting our office.
Ph. | +91 7337418685 |
Mail. | info@vasthi.com |
Office. | HYDERABAD Manjeera Trinity Corporate, |
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