Leak Detection with Tracer Gases
The answer to all your leaks, no matter how big or small: Our tracer gas leak detectors are designed for a wide range of applications and requirements. The portfolio ranges from lightweight and portable to modular and sniffer units.
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- 5 variants available
- 23 variants available
- 8 variants available
- 9 variants available
- 12 variants available
Efficient leak detection: advantages and requirements
of test gases such as helium and hydrogen
To be used for proper leak testing a tracer gas has to fulfill several requirements, for example a low ambient concentration, a high sensitivity detector technology and a non-toxic character. These requirements are fulfilled by Helium as well as Hydrogen (as “forming gas” in the concentration 95% N2 and 5% H2). The most common tracer gas in the field of leak detection and leak-tightness testing under vacuum is Helium. It is safe and a small, light molecule which is suitable for detecting micro leaks. The detection range of Helium in vacuum tests lies between 10-1 and 10-12 mbar · l/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 tracer gas leak detection methods has the bonus of delivering additional data compared to traditional leak detection methods such as bubble testing. These data like a quantified leak rate, analysis of signal evolutions together with precise monitoring of test parameters can be used to improve production processes and successfully detect every leak.
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Brochure: Tracer gas leak detectors
Portable leak detector ASM 310
Compact, lightweight and portable
The ASM 310 is our answer to the requirements of maintenance tasks where mobility plays a major role. For these applications it is important that the leak detector used has compact dimensions, is lightweight and portable. Our ASM 310 portable leak detector weighs 21 kg, less than half the weight of standard units. It has a universal mains connection and is therefore ready for use anywhere in the world. Accessories include a dedicated trolley for better mobility and a carrying case that allows the unit to be taken on an airplane for worldwide service calls.
The ASM 310 is equipped with a high-resolution graphical color display and can be easily controlled via a detachable control panel or with a remote control, even from a distance. The menu navigation is user-friendly and easy to operate.
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Highest performance
Despite its light weight and compact dimensions, the ASM 310 is a complete tracer gas leak detection unit equipped with the same detector technology and offering the same sensitivity as larger models. The clean, oil-free pumping system makes the ASM 310 the right choice for leak detection on systems that do not tolerate any contamination. The ASM 310 can be operated in any position and offers unrivaled performance for leak testing when mobility is key.
Easy documentation of your leak detection process
The intuitive menu can be customized and password protected. This prevents unauthorized changes to the settings. Thanks to the high capacity of the internal memory, the ASM 310 offers the option of documenting leak detection results in the form of image or text files. In addition, data, test configurations and operating parameters can be downloaded or transferred to other devices via a dedicated USB port.
Customer benefits
Oil free pumping system, roughing capacity 1.7 m3/h
Ultralight, only 21 kg (46 lbs) and easy to move
Smart design with retractable handle
Operable in any position (horizontal or vertical) with intuitive and customizable menu
Removable, magnetically positionable control panel with large, bright color touchscreen and graphics function
SD card as a storage option (bitmap or text files) for easy post-processing of the leak test results
Applications
Semiconductor and coating industry
Medical
R&D
Power plants and chemical plants
Multipurpose leak detector ASM 340
Reliable and high-performant
The leak detectors in our ASM 340 series guarantee top performance in vacuum or sniffing leak detection for various applications, from maintenance to applications in small production environments. These dependable leak detectors can be used both for qualitative localization of leaks as well as quantitative global or local testing. They are the only leak detectors in their class offering qualitative leak detection starting at 100 mbar before reaching the inlet test pressure.
The ASM 340 is characterized by its powerful pumping system and available in conventional or dry versions. Easy operation, ultra fast response time and short recovery time are among the outstanding features of these compact multipurpose units. The ASM 340 is the perfect solution for everyday testing even in severe test conditions.
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Easy operation and smart functions
The control panel is equipped with a large, bright and high-resolution color touch display that offers a new user experience. Therefore, no training is required to operate the ASM 340. The configuration of your leak test is directly accessible on the main screen and and the color management of the display improves the readability of the test results. The control panel is removable with integrated magnets, which improves ergonomics when leak testing of medium or large parts.
The ASM 340 has an integrated SD memory card for setting up your individual parameters as well as recording and downloading your leak detection results. In addition, all models of the ASM 340 series can be equipped with communication options. From I/O to fieldbus options, a comprehensive selection is available.
Versions
Customer benefits
Fastest time to test in its class
High backing pump capacity for versatile use
Rapid response time due to high helium pumping speed
Unique capability to detect leaks starting at 100 mbar
Impressive results in sniffing test mode, with 5 · 10-9 mbar · l/s minimum detectable leak rate for helium
Low maintenance due to rugged design
Applications
R & D
Aeronautic industry
Mechanical engineering
Measuring technology
Refrigeration
Air conditioning
Semiconductor technology
Leak detection systems
High performance & mobile leak detector ASM 390/ASM 392
Rapid pump-down and short response times for large test objects
The ASM 390 and ASM 392 are the perfect leak detection solutions adapted to the semiconductor and display industries as well as other demanding applications where rapid pump down and high sensitivity is key. Both units are fully Semi S2 compliant.
These leak detectors are fitted with a dry frictionless backing pump and a powerful high vacuum pump, making them the ideal tools for leak testing of various components in clean environments. Equipped with an additional turbopump, the ASM 392 will speed up your leak detection process to reduce downtime of your production equipment.
Leak detector ASM 390 and ASM 392 from Pfeiffer Vacuum in 3D
Ergonomic and highly maneuverable
ASM 390 and ASM 392 share the same platform and are uniquely ergonomic with a convenient size and height, a secondary handle in the front, a fully rotatable, removable display, an inlet in the front for easy connection to test ports and unrivaled maneuverability for access to all testing areas, even in tight spaces.
Smart and user-friendly
Thanks to a wide, clear color touch display panel, an integrated toolbox with modular compartments and storage space for vacuum bellows, you will be amazed how easy leak detection can be when you have all necessary accessories at the point of use.
Versions
Customer benefits
Superior leak testing performances
Intuitive menu and large, rotatable touch-panel color display
High roughing capacity (35 m3/h) for fast evacuation
Dry and clean pumping technology
Low maintenance requirements
Ergonomic design with working surface
Fast recovery in case of pollution
Integrated toolbox for storage of accessories
Fast start-up
High sensitivity and accurate measurements
Fully Semi S2 compliant
Applications
Semiconductor industry
Large area coating
Solar industry
Accelerators
Laser technology
Ultra-pure media supply
Electronics
Aeronautics
Medical technology
Modular leak detector ASI 35
Quick and easy integration
The modular leak detector ASI 35 is designed for integration into industrial leak detector systems. It can be flexibly adapted to a wide range of leak detection applications and environments in the production of electrical and mechanical parts. With helium or hydrogen as tracer gas, the ASI 35 offers excellent performance for integral and localizing test methods or a combination of both.
The modular design and small footprint of the ASI 35 enables it to be easily integrated into existing systems. A particular feature is the leak detector's ease of use. Its high reliability and short maintenance times are crucial for avoiding production downtimes and quality problems.
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Flexible and reliable
The ASI 35 modular leak detector is specially adapted to meet the requirements of machine builders, system integrators and their end users. The vacuum module with its analyzer cell and calibrated test leak can be installed in any position. The electronic module and the optional control panel are ready for inserting in half 19" racks. They can be fitted in any part of the system or in a cabinet under controlled environmental conditions. The leak detector can be controlled without a control panel simply through a PC or PLC as it has a wide range of interfaces and complies with all industrial standards. The rugged design of the ASI 35 ensures long-term maximum availability of the unit under production conditions.
Customer benefits
Integral and localizing test (vacuum and sniffing) for both tracer gases: helium and hydrogen
Short cycle times due to highest pumping speed
Maximum reliability and robustness for high uptime
Wide temperature range allows for operation in challenging environments
Worldwide operation thanks to universal voltage of the electronic module
Ability to sustain up to 800 sccm flow in sniffing applications
Easy substitution of any other modular leak detector model (I/O compatibility mode)
Applications
Automotive
Refrigeration and air conditioning
Packaging
Mechanical parts
Sniffing leak detector ASM 306 S
Powerful, fast and compact
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.
ASM 306 S – helium and hydrogen sniffer leak detector
Smart and user-friendly
The display of the ASM 306 S offers easy readability with its large size, fully tactile and high resolution screen. Co-designed with the user in mind, the ergonomics of the sniffer probe has been a major focus allowing the operator to be able to hold the sniffer probe during their entire working shift. The test information is visible directly on the probe for easy visual management, so operators can focus on test parts. The high flow probe will help you pinpoint leaks easily without missing any of them. The probe can be equipped with various hose lengths to easily adapt to your application and can be exchanged independently from the probe itself.
The ASM 306 S can be completed with a 2 years lifetime calibrated leak with both helium and/or hydrogen.
Customer benefits
Helium and hydrogen tracer gases
High sensitivity and accurate measurements
Intuitive menu for easy operation
Fast start-up
Fast recovery in case of pollution
Compact design and small footprint for easy integration into your production line
Integrated toolbox
Latest generation of tactile HMI with a large touch screen
Low maintenance requirements
Applications
Cooling systems such as refrigerator and air conditioner
Heat exchangers
Valves and manifolds
Gas circuit components
Storage tanks, expansion vessels
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