Helium Leak Testing

At Carlton Thermal Systems we can offer different types of helium leak detection tests including helium leak spray, helium bombing and helium sniffing. These types of testing methods can be used to detect potential problems with manufactured components or sealed vessels.

Helium leak detecting is an extremely sensitive and it the preferred leak detection method for all the leading industries such as

• Automotive
• Aerospace
• Medical
• Chemical
• Pharmaceutical
• Semi-Conductor
• Cryogenic
• Research and Development

For our in-house testing for medical applications, we chose Alcatel ASM 142 unit which features a roughing capacity of 10m³/h (7cfm) with a usable helium sensitivity in the 10¹¹ atm.cc/s range. ASM 142 is a truly multipurpose unit that complies with a virtually limitless list of applications and its high roughing capacity and will deliver a fast cycle time with advanced electronics to allow its full automation. The main features are:

• Oil free leak detection with diaphragm backing pump
• High helium pumping speed at the inlet port will deliver fast response time
• 1.3 l/s V operating voltage
• Power cable
• Simple operator interface and voice synthesizer in English
• Remote control and sniffer probe with various cable or tube lengths available
• Metal seal allows using the leak detector in very high helium environment
• High performances, such as, a roughing capacity of 7 CFM (60l/mn) with a usable helium sensitivity
• Comprehensive control panel with two distinct areas
• Rugged, sturdy design based on field-proven components
• Custom-tuned spectrophotometer quantitatively measures the amount of helium escaping under vacuum
• Leakage is quantified to levels below Maximum Allowable Leakage Limits (MALL) of most product-package systems.

The multi colour remote control offers the choice from 3 different measurement units:

• mbar.l/s and mbar.
• Pa.m³/s amd Pa.
• Torr.l/s and Torr.

The testing method is selected according to the test part and the measurement accuracy required: