Isokinetic sampling probes are required, for example, for leakage testing of built-in filter systems in cleanrooms and cleanroom facilities. In the existing standards and guidelines, probes with rectangular cross-sections are recommended.
The Topas probes have a rectangular cross-section at the suction point, which merges steadily into a round cross-section for the hose connection. The manufacturing process guarantees a high-quality, smooth surface inside the probe, including all transitions. The constructive design of the probe is based on the international standard ISO 14644-3 as well as the VDI guideline 2083-3. The probe geometry depends on the volume flow of the particle counter used and the required probe inlet velocity.
- location-independent count rate
- precise scanning even in filter corners
- low scanning time due to larger probe width (transverse to the scan direction)
- leakage testing of built-in filter systems
|purpose of use||-||isokinetic sampling|
|volumetric flow rate, inlet||L/min||50 (other models available)|
|sample, flow velocity||cm/s||31 ... 47|
|hose connector, outlet||mm||Ø 10|
|dimension (length)||mm||150 (without hose connection) | 230 (with hose connection)|