DIL 556 Dilution System
DIL 556 Dilution System for static dilution (1:10) of aerosols at static air flow rate (2,83 L/min)
Standards
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product sheet DIL 500 seriesBenefits
- constant and reproducible aerosol dilution even under changing operation conditions
- internal monitoring of the dilution ratio and visualisation
- suitable for mobile operation (compressed air supply is not required)
- long-term lifetime, minimum maintainance required
- precice operation for both overpressure and underpressure
- flow rate and dilution factor adjustable for customer requirements
Applications
- validation of laminar air flow boxes/benches and clean room/environments
- evaluation of filtration separation efficiency
- analysis of highly concentrated aerosols
- aerosol research
From the aerosol flow to be diluted, a sample is passed through a thin capillary. The particle concentration of the capillary flow rate remains unchanged, whereas a HEPA filter removes nearly all particles from the bypassing flow rate. After the capillary and filter both flows are remixed. The dilution ratio results from the ratio between the two single flow rates.
| Parameter title | Unit | Value |
|---|---|---|
| purpose of conditioning | - | dilution of aerosols |
| sample condition, outlet | - | diluted aerosol |
| dilution factor | - | 10 |
| aerosol, volumetric flow rate | L/min | 2,83 (optional 3,0) |
| setting method | - | manual |
| sample condition, inlet | - | non-diluted aerosol |
| power supply | - | 12 V DC; 30 mA |
| hose connector | mm | Ø 8 (optional Ø 10) |
| pressure drop | kPa | 0,8 ... 1,3 |
| environmental condition, temperature | °C | 10 ... 50 |
| environmental condition, max. counterpressure | kPa | ± 35 |
| dimensions (w × h × d) | mm | 300 × 160 × 110 |
| weight | kg | 1,5 |
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Kretzschmar, B.S.M.; Bergelt, P.; Göhler, D.; Firmbach, F.; Köcher, R.; Heft, A.; Stintz, M. & Grünler, B. Modulation of silica layer properties by varying the granulometric state of tetraethyl orthosilicate precursor aerosols during combustion chemical vapour deposition (CCVD) Aerosol Sci. Technol. 54 (2020) 10, 1124 - 1134
dx.doi.org/10.1080/02786826.2020.1762845
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