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GRIMM EDM 465
Ultra-fine-particle counter
CPC in mobile weather-proof housing, designed for 24/7 nanoparticle counting. Different calibrations possible, e.g. for real-time monitoring of UFP in ambient air according to CEN EN 16976:2024.
Functionality: Condensation particle counter
Benefits
- Harmonized and traceable UFP counting with EN 16976:2024 CPC calibration
- Reliable field deployment thanks to a mobile, all-in-one and stand‑alone design in an air‑conditioned weather housing
- Long term butanol and condensate tanks for an extended autonomous operation for up to 4 weeks
- Fast and safe relocation without time demanding drying procedures due to the unique saturator shutter design
- Enhanced data analysis with integrated meteorological sensors that provide key environmental parameters for direct correlation with particle number concentration measurements
- Assured data quality with continuous instrument health monitoring
- Reliable standalone data acquisition with integrated data logger with large internal memory and providing access via mobile network to the GRIMM live online data platform
Applications
- Environmental aerosol research
- Mobile monitoring of ultrafine particles
- Traffic emission monitoring
- Source identification
- Epidemiological health studies
- Public site and urban monitoring
Technical Data
- Technical data
| Measuring principle | Condensation particle counting |
|---|---|
| Measuring variable | Particle number concentration / cm³ |
| Working fluid | n-butanol (n-butyl alcohol) |
| Particle concentration range | Single count mode: Up to 150,000 particles/cm³Photometric mode: Up to 107 particles/cm³ (for short-term measurements) |
| Particle concentration accuracy | Single count mode: ≥ 95%Photometric mode : ≥ 90% |
| Data output interval | 1 … 90 s (user selectable) |
| Counting efficiency | D50 = 10 ± 1 nm (min. D50 = 4nm with standard calibration)D90 ≤ 20 nm |
| Linearity slope | 1 ± 0.05 |
| Response time t10 - t90 | < 3 s |
| Output | Particle number concentration / cm³ |
| Reproducibility | Single count mode: > 95%Photometric mode: > 90% |
| Particle size range | 4.0 nm … 1 µmD50 = 10 nm (measured with silver particles)D90 < 20 nm |
| Response time | trise < 5 stfall < 5 s |
| Sampling pipe | TSP or PM2.5 inlet acc. to EN 16976 with Nafion® based dryerDrying of aerosol flow to ≤ 40% RHMaximum particle losses ≤ 25% at 10nm |
| Total inlet flow rate | 1.8 l/min (through sample pipe) |
| CPC sample flow rate | 0.3 l/min |
| Flow control | Integrated pumps and critical orifices with stabilized temperature |
| Certifications and compliance | EN 16976:2024 ISO 27891:2015 |
| Data recording | Data logger with internal 8 GB memory, access to GRIMM live online data platform; optional GRIMM nanoSoftware |
| Meteorological sensors | Three different sensors to choose from; maximum set of parameters: Wind speed and direction, precipitation, pressure, temperature, relative humidity |
| Connectivity | Data logger, with RJ45, USB, GSM with SIM card for mobile network, GPS positioning |
| Power supply | 110 … 240 VAC ± 10% VAC; 50 / 60 Hz max. 300 W |
| Operating conditions | Ambient temperature: –20 … 40 °C (–4 … 104 °F)Ambient humidity: 0 … 95 % RH, non-condensingAbsolute pressure range: 790 … 1,100 mbar |
| Transport and storage | 0 … 50 °C (32 … 122 °F), RH < 95 % |
| Weather housing | Stainless steel, powder-coated, thermally isolated, integrated Air-Conditioning unit |
| Dimensions (h x w x d) | Housing: 49 x 28 x 65 cm (19.3 x 11 x 25.6 inch)Height with sample pipe: 210.5 cm (82.9 inch) |
| Weight | 45 kg (99.2 lbs) |
Accessories
- Optional
| 157L |
| 158L |
| 159L |
| 180DL |