Beta Gauge Particulate Monitor F-701-20
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A measuring device for the continuous monitoring of the smallest concentration of particles in the ambient air (fine dust)
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Features |
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C-14 method, no measurable decrease in activity |
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Lowest radioactivity of all beta gauges, usable without licence, or disclosure |
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Automatic zero correction |
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Pre-calibrated, no site-specific calibration required |
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Mass-flow controlled sample flow 1m3/h |
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Extraction of a constant sample flow, irrespective of the ambient temperature |
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Repeated collection on the same spot, collected particles available for heavy metal analysis |
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RS-232 interface and analog output, status signals |
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Applications |
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Immissions measuring systems for monitoring fine dust |
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Mobile immissions-measuring |
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Dust measurement in health and safety applications |
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Interior dust measurements |
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Measurement and collection of dust particles for heavy metal analysis |
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Long-term background studies in ambient dust concentration |
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Dust measurement and collection at problem sites and repositories |
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Dust measurement for secondary emission of repositories (e.g. coal) |
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Dust measurement in supply air and exhaust ducts |
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measurements |
dust concentration |
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measuring ranges |
0–0.1 ... 0–10 mg/m3 |
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measuring principle |
beta ray absorption |
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ambient temperature |
0 up to +50°C |
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protection |
IP20 |
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measuring outputs |
2 x 0 / 4–20 mA / 500 Ohm |
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digital outputs |
8 relay outputs,
permissable load 24 V, 12 VA |
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digital inputs |
3 potential free inputs |
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accuracy |
<2% of measuring range |
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detection limit |
<0,001 mg/Nm3 |
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reference point drift |
<1% of measuring range/month |
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zero point drift |
automatic zero point correction |
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supply voltage |
230 VAC / 50 Hz, 110 V / 60 Hz,
400 VA |
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dimensions (H x W x D) |
320 x 450 x 500 mm,
19“-rack mount / desk unit |
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weight |
26 kg |
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tube length |
standard 2 m
0,5–5 m possible |