EDM665 WRAS（Wide Range Aerosol System）寬粒徑氣溶膠粒徑譜儀,是將光學粒徑譜（OPC）和 掃描電遷移率粒徑譜儀（SMPS+C）結合起來分析顆粒物粒徑的設備，光學粒徑譜（OPC）主要用于微米級的顆粒的監測，OPC將監測31個通道，掃描電遷移率粒徑譜儀（SMPS+C）用于納米顆粒研究，掃描電遷移率粒徑譜儀（SMPS）將監測44個通道。

EDM665 WRAS寬粒徑氣溶膠粒徑譜儀粒徑監測范圍為5nm到32um，總的可以分為70多個通道，系統軟件將自動繪制粒徑和濃度分布圖。

Measurement range

Optical device

- 71 size channels

from 5.5 nm up to 32 μm

- Minimum scan time of 300 seconds

- Concentration range from 1 to 107 P/cm3

Optical device

- 71 size channels

from 5.5 nm up to 32 μm

- Minimum scan time of 300 seconds

- Concentration range from 1 to 107 P/cm3

- Size range: 250 nm to 32 μm

31 size channels

- Particle counts: 1 to 2 x 10³ P/cm³

- Sample flow: 1.2 l/min

- Reproducibility: 3% in max. range

SMPS+C

Size range: 5.5 nm to 350 nm

44 size channels

- Particle counts: 0 to 107 P/cm3

- Sample flow: 0.3 liters/min

- Auto refill: Butanol refill of internal

tank simply by connecting

the bottle

- Condensate

removal: Continuous evacuation by

micro-pump into a

collecting flask

Operating conditions

- Ambient temp.: -20°C to +55°C

- Power supply : 110/220 VAC, 50/60 Hz

- Power consumption: 750 W

Dimensions & weight incl. A/C

- Size: 60 x 60 x 120 cm

- Weight: 120 kg

- Sample pipe: 1.5 m （3 m optionally avail.）