LAP 323 Aerosol Spectrometer
Dual-wavelength single-particle scattering spectrometer for high-resolution particle-size distribution and particle-number concentration measurement from 0.15 to 40 µm.
Model Overview
| Model | Group | Positioning | Core fit |
|---|---|---|---|
| LAP 323 | Dual-wavelength aerosol spectrometer | High-resolution single-particle scattering measurement with red and blue laser diodes. | Aerosol research, filter testing, calibration aerosols, sprays, oil mists, dusts and powders. |
Key Features
Dual-wavelength classification
Red and blue laser diodes reduce classification ambiguities and improve the sizing of small spherical particles.
High-resolution size distribution
Up to 128 adjustable particle-size channels support detailed number-based aerosol characterisation.
Integrated sampling and flow control
An internal pump, controlled 3.0 L/min test flow and 0.1 L/min measuring-cell flow support repeatable sampling.
Mass-verification option
A removable bypass filter supports gravimetric verification alongside optical particle-size and number measurements.
Technical Specifications
| Parameter | Unit | Value / Description |
|---|---|---|
| MEASUREMENT | ||
| Measurands | — | Particle-number concentration and particle-size distribution |
| Particle-size range | µm | 0.15–40 |
| Concentration range | particles/cm³ | Up to 10,000 |
| Particle-size channels | — | Up to 128, adjustable |
| Measurement-time resolution | s | ≥ 1, continuously adjustable |
| FLOW AND OPTICS | ||
| Test flow rate | L/min | 3.0 total; 0.1 through the measuring cell |
| Light sources | — | Red laser diode: 660 nm, 30 mW; blue laser diode: 450 nm, 60 mW |
| INTERFACE AND POWER | ||
| Interface | — | RS-232 |
| Power supply | — | 110–230 V AC, 50–60 Hz; 12 V DC, 4.2 A |
| Power consumption | W | 21 during normal operation |
| PHYSICAL | ||
| Dimensions (W × H × D) | mm | 220 × 380 × 200 |
| Weight | kg | 9.4 |
Manufacturer-published values are shown for model selection. Confirm the current configuration, accessories and calibration scope before ordering.
Applications
High-resolution aerosol analysis
Measure time-resolved particle-size distributions and particle-number concentrations in laboratory and process aerosols.
Fractional-efficiency characterisation
Compare upstream and downstream size distributions for filter-media and filter-element evaluation.
Test and calibration aerosols
Characterise reference aerosols used for instrument development, verification and calibration workflows.
Dispersed-particle sizing
Analyse sprays, oil mists, dusts, powders and pharmaceutical aerosols across a broad optical size range.
