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Threshold alarm unit for radiactive aerosols IRAA–01D
Threshold alarm unit for radiactive aerosols IRAA–01D
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Monitoring of radioactive aerosols in the work area
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Purpose
- Continuous measurement of volumetric activity of radioactive aerosols due to artificial alpha-emitting nuclides
- Sound/light alarm in the event that the measured values of volumetric activity exceed the preset threshold levels
Features
- Stationary installation at the working area air monitoring points
- Connection to the pump unit BN-01
- Or another external sampling device
- Service interface USB for diagnostics, adjustment and calibration
Physical characteristics
- Measurement range of volumetric activity: 1,0 ÷ 2,0·105 Bq/m3
- Energy range of alpha particles detection: 3,0 ÷ 8,0 MeV
- Sensitivity coefficient for particles within energy range based on 239Pu: Not less than 0.02
- Intrinsic background of alarm unit: not more than 1,0·10-1 Bq/m3
- Air flow rate through the filter: 20 ÷ 40 l/min
- Measurement range of air volume pumped throughthe filter: 10 ÷ 100 000 l/min
- Power supply: 220 V, 50 Hz
Electrical characteristics
- Power consumption: 50 V・A
Mechanical characteristics
- Overall dimensions: 350×156×482 mm
- Weight: not more than 6 kg
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