Skip to main content

SYS 529

Rectangular Sampling Probe SYS 529 for leakage and integrity testing according ISO 14644-3 for a sample flow rate of 28,3 l/min

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.
Rectangular Sampling Probe SYS 529
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.

Standards

ISO 14644-3
VDI 2083-3
Interested? We will gladly advise you

+49 (351) 2166 430

contact form

Benefits

  • location-independent count rate
  • precise scanning even in filter corners
  • low scanning time due to larger probe width (transverse to the scan direction)

Applications

  • leakage testing of built-in filter systems

Sampling is called isokinetic if the downstream flow velocity of the filter is equal to the flow velocity at the inlet of the probe.

If the downstream flow velocity of the filter (UF), for example, is greater than the flow velocity at the probe inlet (US), part of the airflow will bypass the probe. Large particles, unlike small particles, cannot follow the change in airflow and just they are captured by the probe. The sample is fractionated and the measurement results falsified.

Consequently, it is important that the dimensions of the probe are adapted to the sampling volume flow and the down­stream velocity of the filter to ensure compliance with the isokinetic sampling.

Parameter title Unit Value
purpose of use - isokinetic samplink
sample, flow velocity cm/s 31 ... 47
volumetric flow rate, inlet L/min 28,3
hose connector, outlet mm Ø 8
dimension (length) mm 150 (without hose connection) | 230 (with hose connection)
weight kg approx. 0,17

Silimar products

SYS 528

Rectangular Sampling Probe SYS 528 for leakage and integrity testing according ISO 14644-3 for a sample flow rate of 50 l/min

Rectangular Sampling Probe SYS 528
detail view