Product Filter
MiniWRAS 1371
Portable wide-range aerosol spectrometer
The only portable instrument on the market that allows simultaneous and precise real-time monitoring of both micron-sized and nanoparticles. Designed for indoor air quality monitoring.
Functionality: Optical particle counting combined with measuring the eletrical mobility diameter
Features
- Ultra-wide particle size range from 10 nm to 35 μm
- PM10, PM2.5, PM1 and particle size distribution, particle surface, and dust mass
- High precision over 41 equidistant channels
- No consumables
- Non-radioactive particle charger
- Versatile data aquisition and communication interfaces (Bluetooth, USB, RS-232)
- Easy to use with GRIMM software
- Optional sensor for temperature and relative humidity
- Self-test of all optical and pneumatic components for high quality standards
- Purge air for protecting laser and detector in optical cell
Benefits
- Portable
- Battery-powered
- Non-radioactive Nanometer particle sizing
- No need for liquids
Applications
- Nanoparticle and PM monitoring (e. g. PM2.5)
- Indoor air quality (IAQ) in buildings
- IAQ in vehicles, airplane cabins, cockpits, busses, trains
- Nanoparticle source identification
- Workplace monitoring
- R&D testing in industry
Technical Data
- Technical data
| Measured parameters | Dust fractions as per EN 481 (inhalable, thoracic, respirable) PM10, PM2.5, PM1, number concentration and size distribution |
|---|---|
| Dust mass concentration | 0 … 100,000 μg/m³ |
| Particle size range | 10 nm … 35 μm (10 … 193 nm electrical, 0.253 … 35 μm optical) |
| Size channels | 41 (10 electrical and 31 optical) |
| Particle number concentration: | 3,000 … 500,000 particles/cm³ (electrical) 0 … 3,000,000 particles/l (optical) |
| Reproducibility | > 97% of total measuring range (optical) |
| Detection principle optical | Light scattering at single particles |
| Detection volume aerodynamically focused, no border zone error | |
| Optical cell | Diode laser 660 nm |
| Detector | Fast signal processing with 2 μs pulse length, 2x 16 raw data channels |
| Time resolution | 6 s, 31 channels (storage interval 1 min) |
| Detection principle electrical | Electrical mobility spectrometer with Faraday cup electrometer |
| Detector sensitivity | 0.25 fA |
| Time resolution: | 60 s, 10 channels 6 s each (storage interval 1 min) |
| Volume flow | 1.2 l/min, ±3% constant due to self-regulation |
| Internal purge air flow rate | 0.4 l/min, protects laser optics, reference air for self-test |
| Operation | GRIMM MiniWRAS software (wireless or data cable) |
| Interfaces | Bluetooth, USB, RS-232 |
| Analog input | External sensor for temperature and relative humidity |
| Power supply | In: 100 … 240 VAC, 47 … 63 HzOut: 18 VDC, 2.5 A |
| Battery | Li-lon battery, 14.4 VDC, 4.8 Ah for 8 h operation |
| Dimensions (H x W x D) | 34 x 31 x 12 cm (13.4 x 12.2 x 4.7 in) |
| Weight | 7.6 kg (16.8 lbs) |
| Operating conditions | +4 … +40 °C (39 … 104 °F)RH < 95%, non-condensing |
USP
- Portable, battery-powered wide range aerosol spectrometer without the need for liquids