Pfeiffer Helium Leak Detectors

Portable - ASM 310
Multipurpose - ASM 340 / 340 D / 340 I
Performance - Mobile - ASM 390 / 392
Modular - ASI 35
Sniffing - ASM 306 S
Accessories

No leak is too small or too big to escape our leak detectors. It doesn’t matter whether you are looking for water, oil, fuel, refrigerant, gas, steam, air or vacuum leaks. From miniature electronic units right up to large-volume vessels, from media escaping from vacuum systems to gases entering them – the uses for leak detectors are as broad as the range of industrial products. The extensive range of Pfeiffer Vacuum leak detectors provides the answer for all these requirements.

Leak detectors for various requirements: portable, compact and stationary units

Our portable leak detectors are used both for mobile leak detection “on site”, such as company premises, as well as for worldwide service jobs in a variety of different locations. Our leak detectors stand out above all due to their high performance combined with low weight.

The compact leak detectors are used first and foremost for stationary applications to detect leaks and test for leak tightness. They are also portable thanks to a special leak detector cart. Compact leak detectors are used in widely ranging industries, from applications in heavy industry right up to clean room applications. In this latter case, the dry versions of the leak detectors are being used.

Stationary high-performance leak detectors are used where extremely short cycle times and fast cleanup of helium background are required. Our leak detectors of the ASM 192 and ASM 1002 series are used in applications ranging from large-scale testing of electronic components for leak tightness up to highly sensitive applications in vacuum and medical technology or research and development.

Leak detection with the test gas helium is safe, quantitative and repeatable.

Helium leak detectors are the ideal solution for leak detection and leak-tightness testing under vacuum. The test gas helium is safe and a small, light molecule which is suitable for detecting micro leaks. The detection range of helium in vacuum tests lies between 10-2 and 10-13 Pa · m3/s. Helium leak detection is extremely accurate, quantitative and repeatable. Fast cycle times are a further advantage.

Manual sniffing or spraying is often the easiest way to detect a leak with Helium. But it is also possible to use automatic leak detection solutions which are independent of the operator and provide a considerably higher detecting speed. The integral leak detection is designed to achieve pre-defined quality and component throughput levels.

The use of test gas leak detection methods has the bonus of delivering extra data compared to traditional leak detection methods such as bubble testing or pressure drop methods. These data can be used to improve production processes and successfully detect every leak.

ASM 340, ASM 340 D, ASM 340 I

ASM 390 and ASM 392

ASI 35

ASM 306 S

Superior performance, fast testing in a compact design
The sniffer leak detector ASM 306 S will help you to meet your daily challenges for leakage control using sniffing measurements in emerging technology like e-mobility and hydrogen energy economy or well established applications in refrigeration and air conditioning. The ASM 306 S offers all the advantages of a proven technology regarding sensitivity, accuracy and repeatability. It has been designed to offer fast and repeatable measurements, whether helium or hydrogen is used as tracer gas. This unit offers the highest testing reliability to increase productivity and quality levels and provides the fastest recovery in case of big leaks to maximize uptime. Additionally specific attention has been placed on the robustness of the complete ASM 306 S, including the probe and its cable, to provide you a full-time sniffing unit with low cost of ownership.

Pfeiffer Vacuum offers a wide range of accessories for our leak detectors. Those accessories should help you to simplify the operation of your leak detector and optimize your leak detection process. Please contact us should you have questions or special requirements.

Accessories for operation of your leak detector

• Remote control
• External interface options
• Free software
• ASM Pocket – Smartphone App
• ASM View – Windows Tool

Accessories for leak location

• Sniffer probes
• Sniffing calibration accessory
• Helium spray guns

Process equipment & tooling

• Bombing chambers
• Test chambers
• Bypass options
• Locking clamp
• Inlet filters

Calibrated Leaks

• Calibrated leak
• Gas line type calibrated leak

Mobility & Transport

• Carts
• Transportation case (ASM 310)
• Bottle holder

Periphery vacuum equipment

• Backing pumps
• Pump accessories (filters, etc.)
• Valves & piping
• External gauges

1. Preventing Material Loss by Leakage Detecting and addressing leaks ensures that valuable materials are not lost due to escaping gases.
2. Avoiding Contamination Leaks can introduce contaminants into a system, affecting product quality and reliability.
3. Ensuring Product Performance and Reliability Leak-free products perform better and are more reliable, leading to satisfied customers.
4. Reducing Liability Leaks can lead to safety hazards, environmental issues, and legal liabilities.
5. Minimizing Production Output Loss System downtime caused by leaks can significantly impact production output.

• Helium’s Properties:
  • Helium, with a molecular weight of 4 atomic mass units (amu), is readily available worldwide.
  • Its low background noise makes it an excellent choice for leak detection applications.
  • Helium is non-toxic, non-flammable, inert, and not easily absorbed.
  • It allows for non-destructive testing (NDT).

• Variety of Helium Leak Detector Models: Hexo offers different models to suit your specific needs.
• Pump Options: Dry pumps or oil pumps are available for both cleanroom and non-cleanroom environments.
• Customizable Pumping Speed: Choose the pumping speed based on your process requirements.
• Flexible Types: Hexo provides options with or without carts, as well as handheld detectors.
• Suitable for Various Test Methods: Whether it’s spray vacuum or sniffing, Hexo detectors can handle different testing approaches.
• Comprehensive Support: Accessories, spare parts, and calibration services are available from Malaysia factory. Our experienced team provides technical support and training after sales.
• Rental Units: If needed, you can rent Hexo Helium Leak Detectors.