Helium Leak Detection System – PHOENIX

  • Leak testing of components using our PHOENIX series helium leak detectors allows the detection of leaks up to several 1×10 -12 mbar.
  • They can be used for various sizes and shapes. In addition, they are well suited for the parallel testing of several test specimens.


The number of components and systems which must be systematically checked for leaks is constantly rising around the world. This is because in many industries both the quality and the functionality of components and apparatus are closely connected with their tightness.

In systems which are operated with liquids or gases, rising product requirements mean higher tightness requirements and their verification. Leaks lead to the escape of substances or react with other products. The consequences are downtimes, production failures and repair work. Sometimes the consequences can be even more serious if medical products for example are not bacterially or virus-proof and the tiny leaks lead to a health-threatening intrusion.

There is no such thing as absolute tightness. Therefore, components and systems must be tight below certain limit values. It is precisely this situation which makes checking the actual leakage rate essential. The fastest and most reliable method of detecting these leaks is the use of leak detection systems.

The universal leak detectors of our PHOENIX series are ideal for finding very small local or integral leak rates. One of their features is that they can be equally used in service and in mass production and that they supply reliable results quickly.


Functional design concept
With its ergonomic design and improved measuring characteristics, the fourth generation PHOENIX sets new standards – especially in terms of operating comfort, response times, helium sensitivity and reliability. Moreover, the stationary and mobile models are easier to handle and maintain than their predecessors. For example, it is now possible to change the filter without removing the housing. This compact, versatile helium leak detector is available in three classes, the PHOENIX Vario, PHOENIX Quadro, and PHOENIX Magno, which are designed for various customer applications with their different pumping speed configurations.

Optimized human-machine interfaces

The thorough facelift focused on improving the monitoring and control functionality, as well as the need to meet the increased demands on leak detection performance. Accordingly, the PHOENIX 4 can be operated comfortably via a color touch display or wirelessly with any Internet-capable mobile device, due to the integrated web server. The optimized design of the display allows users to intuitively navigate through the menu and the sensitive touch displays and push-buttons can be easily activated.

Extended by useful features

“In the PHOENIX 4, we have added useful features to the proven equipment features of the predecessor L300i,” explains Dr. Sina Forster, the responsible Leybold product manager. For example, the number of interfaces for data acquisition, communication and system integration has been increased. Additional communication and bus interfaces are now integrated directly at the leak detector alongside with new, optional interface modules. These enhanced communication interfaces facilitate easy data export and the creation of test reports.

Uniform technology platform

In addition to the new design and the intelligent connections, the PHOENIX is also defined by its “inner values”. The entire PHOENIX-4 series is based on a uniform technology platform and contains the identical measuring system, not least for economic reasons. The models and versions are differentiated by the backing pumps and pumping speed configurations.

Models for all cases

As the smallest in its class, the PHOENIX 4 Vario is a suitable space-saving system in special research applications. The designers went without an integrated backing pump leaving more flexibility, not least due to its low weight of 30 kilograms. The next variant in line, the PHOENIX 4 Quadro, has an oil-sealed TRIVAC rotary vane vacuum pump as backing pump. In the dry version of the Quadro, a diaphragm pump is used. This variant is perfect for use in analytical technology, the food and packaging industry as well as in automotive production. The model range is rounded off with the most powerful leak detector, the PHOENIX 4 Magno for large test volumes. In the oil-sealed version, the SOGEVAC rotary vane vacuum pump is installed, whereas in the dry version, the oil-free scroll vacuum pump SCROLLVAC is utilized.

Accuracy, reproducibility, speed

In addition to the sensitivity and reproducibility of reliable leak rate measurements, users of the PHOENIX-4 family benefit from the fast operational readiness and adaptability of the helium leak detector models throughout the range. “These performance characteristics are just as important in high-energy physics, e.g. at the Centre for German Electron Synchrotron DESY for basic scientific research in Hamburg, as they are in semiconductor production,” says Product Manager Dr. Sina Forster. Forster concludes, “The two of the most important features of a helium leak detector in all modern applications are its accuracy over a wide measuring range and its time of response.”

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