Working under atmospheric pressure, accumulation testing uses helium as a tracer gas. An AT machine mitigates the need for a vacuum chamber whilst maintaining the ability to detect up to 1.00E-3 mbar l/s leaks. Accumulation leak testing is a cost effective solution.
The AT Machine is reliable and produces repeatable results independent of the temperature.
Depending on the dimensions of the component and of the enclosure, the AT Machine is the perfect tool to replace the Air Under Water Test and the Pressure Decay Test. This results in high quality performances for leaks down to 1.00E-3 mbar litre/sec.
The accumulation testing machine is able to distinguish passes from fails and to measure the corresponding leak rate. For leaks smaller than 1.00E-3 mbar litre/sec the level of sensitivity diminishes as well as the cycle time of the machine increasing.