Portable Model AE-42 Aethalometer
Aethalometer®
Portable Model AE42 Aethalometer
Fungsi :
Untuk mengukur konsentrasi black carbon di udara/ambien portabel Black carbon merupakan sisa pembakaran berwarna hitam berupa partikel yang keluar dari knalpot kendaraan
Aplikasi :
- Mengukur tingkat pencemaran kendaraan diperkotaan
- Mengukur pencemaran udara di pertambangan, terutama pertambangan bawah tanah yang menggunakan mesin diesel
- Mengukur pencemaran di dalam angkutan transportasi
Segmen Pasar :
- Lembaga Penelitian LIPI
- Universitas
- Lembaga Peneliti pembuat undang undang K3
Spesifikasi :
Measurement Principle Incremental optical transmission absorption due to aerosol
deposit collected continuously on quartz fi ber fi lter.
Analytical Method
AE42-2 (‘Dual-Wave’): Combination optical absorption measurement at 880 nm
(‘EC’), and 370 nm (designated as ‘UVPM’, interpreted as
an indicator of aromatic organic compounds such as are
found in tobacco smoke, PAH mixtures, wood and biomassburning
smoke, etc.).
AE42-7 (‘Spectrum’): Simultaneous measurement at 7 wavelengths for studies
of aerosol optical absorption, atmospheric optics, radiative
transfer etc.: 370, 470, 520, 590, 660,
880 and 950 nm. Special ‘alternative wavelength set’ optical
sources are available upon request.
Time Resolution (User setting)
AE42-2: 1 hour to 1 minute
AE42-7: 1 hour to 2 minutes
Intercomparison Aethalometer readings compare 1:1 with chemical analysis
for EC on parallel fi lter samples.
Sensitivity Proportional to fl ow rate, inversely proportional to time
resolution - approximately 0.1 μg/m3 @ 1-minute resolution @ 3 LPM.
Noise Cancellation: Short-timebase data may be integrated over longer periods
to recover data exactly equivalent to higher-sensitivity
operation at longer timebases.
Flow Rate (User setting) 2 to 4 LPM optimum, monitored by mass fl ow meter.
Internal pump provides 2 to 6 LPM, stabilized by closedloop control.
Aerosol Sizing Instrument collects all aerosol presented at inlet port.
Size-segregating inlets (impactors, cyclones etc.) may be attached.
Note: In almost all situations, the vast majority of EC aerosol
is in the PM2.5 submicron aerodynamic size range (i.e. less
than 2.5 μm).
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