LAP 323 Aerosol Spectrometer
LAP 323 Aerosol Spectrometer for analysis of particle size distributions and particle number concentrations in aerosols, Dual Wave Length Technology
Standards
download
product sheet LAP 323Benefits
- very high classification accuracy within the particle size measurement range
- homogeneous and high illumination intensity in the measuring volume for an optimized lower detection limit
- avoidance of border zone error through optimized measuring cell design
- verification of mass concentration using a removable bypass filter
The Laser Aerosol Spectrometer uses an internal pump for the suction of the sample volume flow rate into the device. The volume flow rate is divided and only a small amount is directed into the measuring cell. Two long-life laser diodes of different wavelengths are located in the measuring cell and illuminate the particles flowing by. The resulting scattered light is collected by a photo detector. The optical signals are converted into electrical signals and processed by a microprocessor. The microprocessor amplifies the signals, determines their pulse height and classifies them into the appropriate pulse height classes. The channel contents (more than 90 size channels are available) are transmitted to a computer via the serial interface. Using the software PASWin with the provided calibration function, particle sizes can be assigned to the class boundaries resulting in the particle size distribution.
| Parameter title | Unit | Value |
|---|---|---|
| measurand | - | particle number concentration, particle size distribution |
| measuring range, particle size | µm | 0,15 ... 40 |
| measuring range, concentration | #/cm³ | max. 10'000 |
| resolution, measurement time | s | ≥ 1 (variable adjustable) |
| resolution, particle size | - | max 128 size channels (adjustable) |
| test flow rate | L/min | 3,0 (0,1 trough measuring cell) |
| power supply | - | 110 - 230 VAC (50 - 60 Hz); 12 VDC (4,2 A) |
| light source | - | |
| serial interface | - | |
| power consumption | W | 21 (normal operation) |
| dimensions (w x h x d) | mm | |
| weight | kg |
- carry case
- sample switching Unit SYS 520
- Software PASWin (included)
- Dilution System DIL
Silimar products
LAP 322
LAP 322 Aerosol Spectrometer for analysis of particle size distributions and particle number concentrations in aerosols, monochrome light
