LAP 324 Aerosol Spectrometer
LAP 324 Aerosol Spectrometer for analysis of particle size distributions and particle number concentrations in aerosols, Dual Wave Length Technology
The touch screen can be used for adjusting as well as operating the instrument and provides visualisation of the measured concentration course respectively the particle size distribution.
Standards
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product sheet LAP 324Within the aerosol spectrometer, the sampled aerosol flow rate is firstly divided into an effective detection flow rate and a bypass flow rate. The unmodified effective detection flow rate goes straight forward into the measurement cell. To avoid analytical artifacts, the effective detection flow rate is sheathed (aerodynamic focusing) by the afore filtered bypass flow rate.
Two long-life laser diodes of different wavelengths in the measurement cell illuminate particles passing through. The scattered light is collected by a photo detector. These signals are converted into electrical signals and processed.
| Parameter title | Unit | Value |
|---|---|---|
| measurands | - | particle number concentration, particle size distribution |
| measuring range, particle size | µm | 0,15 ... 40 |
| measuring range, concentration | #/cm³ | max. 20'000 |
| 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 | red Laser diode (660 nm, 30mW); blue Laser diode (450 nm, 60 mW) | |
| communication interface | - | Ethernet, USB-C, RS232 |
| dimensions (w × h × d) | mm | 220 x 380 x 200 |
| weight | kg | 9,4 |
- carry case
- sample switching Unit SYS 520
- Software PASWin (included)
- Dilution System DIL
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LAP 323 Aerosol Spectrometer for analysis of particle size distributions and particle number concentrations in aerosols, Dual Wave Length Technology
