The Agilent HLD PD03 Dry Leak Detector uses a mass spectrometer tuned to detect helium, which is used as a tracer gas to locate and/or measure very small leaks in enclosed devices or systems. The compact HLD PD03 is both a precise instrument and a robust workhorse, featuring an easy-to-use touch screen interface and menu structure that quickly connect users to powerful leak detection capabilities. Built-in application setups shorten test cycles, and setups can be saved to assure repeatability. It fits easily on a table, bench or cart. The enclosed primary vacuum pump is an oil-free scroll/diaphragm combination pump, with a pumping speed of 3 m3/hour, which eliminates any risk of oil contamination of test parts or systems.