DIL 554/T Mobile Dilution System
Battery-powered mobile 1:100 aerosol dilution system for 28.3 L/min flow, supplied with the 1/4-inch hose-connection variant for cleanroom validation.
Model Overview
| Model | Configuration | Primary use | Selection note |
|---|---|---|---|
| DIL 554/T | 1:100; 28.3 L/min | Battery-powered mobile 1:100 aerosol dilution system for 28 | Select DIL 554/T when the mobile 1:100 system is required with the 1/4-inch hose-connection variant. |
Key Features
Mobile cleanroom operation
Compact, battery-powered construction supports field use during cleanroom, safety-cabinet and ventilation-system verification.
No auxiliary pressurised air
Operates without an additional dilution-air supply or dedicated exhaust connection in normal mobile measurement setups.
Defined dilution with status indication
Provides stable aerosol dilution and indicates operating status for field measurements.
Operation under varying conditions
Designed to maintain reproducible dilution during changes in upstream aerosol conditions.
Overpressure and underpressure use
Suitable for positive- and negative-pressure sampling within the specified operating limits.
Cleanroom-oriented construction
The mobile format and available carrying case support transport between validation and acceptance-measurement locations.
Technical Specifications
| Parameter | Unit | Value / Description |
|---|---|---|
| CONDITIONING | ||
| Purpose | — | Dilution of aerosols |
| Sample condition, inlet | — | Non-diluted aerosol |
| Sample condition, outlet | — | Diluted aerosol |
| Dilution factor | — | 100 |
| Aerosol volumetric flow rate | L/min | 28.3 |
| Setting method | — | Manual |
| CONNECTIONS & OPERATING CONDITIONS | ||
| Power supply | — | 9 V battery; optional power adapter |
| Hose connector | mm | Ø 8 |
| Pressure drop | kPa | Approximately 0.6 |
| Environmental temperature | °C | 10–50 |
| Maximum counterpressure | kPa | ±30 |
| PHYSICAL | ||
| Dimensions (W × H × D) | mm | 120 × 195 × 300 |
| Weight | kg | 3.2 |
Specifications follow the current Topas GmbH product information reviewed for this page. Confirm the final configuration, accessories and calibration documentation at quotation stage.
Applications
Filter-leak testing
Conditions high upstream challenge-aerosol concentrations before cleanroom particle counting during installed-filter leak testing.
Cleanroom technical-facility validation
Supports verification of cleanrooms, laminar-flow boxes, work benches and related clean-air systems.
Operating-room and ventilation checks
Supports aerosol measurements in healthcare ventilation and clean-air installations when the selected method requires concentration reduction.
Filtration-efficiency evaluation
Extends the concentration range of downstream particle counters for filter-separation measurements.
Highly concentrated aerosol measurement
Reduces particle concentration while preserving the aerosol size distribution for downstream analysis.
Mobile aerosol research
Provides a portable dilution stage for field and laboratory aerosol investigations.





