
SYS 525 Pressurised-Gas Sampling System
Representative sampling and pressure-decoupling system for particle analysis in compressed-air and nitrogen lines at medium overpressures up to 8 bar, designed in line with VDI 2083-7 requirements.
Model Overview
| Model | Group | Positioning | Core fit |
|---|---|---|---|
| SYS 525 | Pressurised-gas sampling system | Isokinetic sampling and pressure decoupling from lines and vessels up to 8 bar | Compressed-gas particle monitoring, qualification and process control |
Key Features
Pressure decoupling
The system reduces pressure between the pressurised sampling point and an atmospheric-pressure particle counter.
Representative sampling
Probe geometry and flow monitoring support isoaxial and isokinetic extraction with minimal modification of the aerosol sample.
Medium-pressure operation
The unit is intended for gas lines and vessels operating from 1 to 8 bar overpressure.
Isokinetic status display
The measured total flow is compared with the required counter flow so the operator can observe and correct sampling conditions.
Portable operation
The 12 V DC supply supports adapter or battery-powered operation where required.
Process-monitoring fit
The system supports particle monitoring in pharmaceutical, chemical, food and other compressed-gas applications.
Technical Specifications
| Parameter | Unit | Value / Description |
|---|---|---|
| SAMPLING | ||
| Purpose | — | Aerosol sampling from pressurised lines |
| Outlet condition | — | Aerosol at ambient pressure |
| Aerosol flow rate | L/min | 28.3 |
| Inlet total flow | L/min | > 28.3 |
| Pressure range | bar | 1–8 overpressure |
| Media | — | Air- and nitrogen-based aerosols |
| Adjustment | — | Manual |
| ELECTRICAL & CONNECTIONS | ||
| Power supply | — | 12 V DC via adapter |
| Outlet hose connector | mm | Ø 6/4, hose inner diameter |
| Inlet connector | mm | Ø 3.175 |
| PHYSICAL | ||
| Dimensions | mm | 150 × 200 × 270 |
| Weight | kg | 1.5 |
Specifications are based on Topas GmbH published product information. Confirm the current configuration, accessories and calibration scope before order placement.
Applications
Particle sampling from pressure lines
Representative particle sampling from compressed-air, nitrogen and other compatible gas systems.
Acceptance and periodic evaluation
Testing of pressurised systems in accordance with the applicable VDI 2083-7 procedure.
Industrial compressed-gas control
Particle monitoring in pharmaceutical, chemical and food-production processes and aerosol research.





