Leak detection system

11/01/1996

Leak detection system

The QLD leak detector allows direct control of all system functions via Allen-Bradley`s Data Highway Plus communications network. This is achieved using PLC-Link software. The system substantially reduces test cycle time, in part because it eliminates the need for an on-board processor. The DH Plus link to the leak detector also permits process changes to be made without hardware upgrades. QLD is made up of four modules: a sampling module, a software module, a backing module, and an electronics control module. The backing module can be configured with any oil-filled or dry vacuum pump and all four modules will be configured for the specific application. QLD`s modular components are easy to place and its small size allows it to be close-coupled to the test chamber. Edwards High Vacuum International, Wilmington, MA; ph 508/658-5410, fax 508/658-7969