Helium Leak Detection Techniques - METROVAC Helium Leak Detection Techniques The helium from the leak then accumulates over time inside the cover. The detector measures the concentration of helium, Modul1000 EN - uhvts.com Operating instructions 1-7 jinb80e1-h Operating Manual (1011) Minimum detectable leak rate The smallest leak rate the Modul1000 is able to detect. (5x10-12 mbar l/s). Helium leak detector UL1000 - dbm.com.vn Helium leak detector UL1000. Sniffer Probe for UL1000/5000/Modul1000, Min. detectable leak rate for Helium ( Sniffer mode ) 5E-8 mbar•L/s.    Read More