ATEK Particulate Matter Sensor
Specifications
1. Measured Numerical Concentration:
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Particle Size Range: Measures PM1.0, PM2.5, PM4.0 and PM10.
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The ATEK particle sensor is capable of measuring the numerical concentration of particles in ambient air.
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The results are given in number of particles per cm³ (particles/cm³) for the detected particle sizes.
2. Measurement Range:
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0 to 3,000 #/cm³
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Accuracy:
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For PM0.5, PM1, and PM2.5:
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0 to 1,000 #/cm³: ±100 #/cm³
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1,000 to 3,000 #/cm³: ±10% of the measured value (m.v.)
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For PM4 and PM10:
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0 to 1,000 #/cm³: ±250 #/cm³
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1,000 to 3,000 #/cm³: ±25% of the measured value (m.v.)
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Long-Term Maximum Drift of Numerical Concentration Accuracy:
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For 0 to 1,000 #/cm³: ±12.5 #/cm³ per year
For 1,000 to 3,000 #/cm³: ±1.25% of the measured value (m.v.) per year
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Sensitivity: Detects particles as small as 0.3 µm.
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Measured Particle Sizes:
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PM0.5 0.3 to 0.5 μm
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PM1.0 0.3 to 1.0 μm
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PM2.5 0.3 to 2.5 μm
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PM4 0.3 to 4.0 μm
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PM10 0.3 to 10.0 μm
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4. Environmental Tolerances:
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Operating Conditions:
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Temperature: -10°C to +60°C.
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Humidity: 0% to 95% RH (without condensation).
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Storage Conditions:
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Temperature: -40°C to +70°C.
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Humidity: <95% RH.
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5. Conversion to particles/m³:
To comply with standards like ISO 14644-1, the concentration in particles/cm³ can be converted to particles/m³:
- Concentration in particles/m³ = Concentration in particles/cm³ × 1,000,000
For example, if the sensor indicates 3.1 particles/cm³, that is equivalent to: 3.1 particles/cm³ × 1,000,000 = 3,100,000 particles/m³.
6. Implications:
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This data is essential for evaluating air cleanliness in controlled environments like cleanrooms.
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It can be used to verify if the room complies with the specified limits for ISO classes (such as ISO 7 or ISO 8).
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For ISO 7: The maximum allowed concentration for particles ≥0.5 µm is 352,000 particles/m³. (NC10 < 0.352#/cm³)
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For ISO 8: The maximum allowed concentration for particles ≥0.5 µm is 3,520,000 particles/m³. (NC10 < 3.52#/cm³)