Pernicka 700H Cumulative Helium Leak Detector

Meets updated leak test procedures according to MIL-STD-883J.

Cumulative Helium Leak Detector (CHLD), a single leak testing system for sealed packages, combines mass spectrometer expertise with cryogenic ultra-high vacuum. The Pernicka 700H offers hermetic testing superior to conventional GROSS Leak and FINE leak methods. This technique can be applied to any hermetically sealed device which contains a gas such as Nitrogen, Helium, Argon, Krypton, Xenon, etc. or can be "bombed" with Helium. The Pernicka 700H is controlled by an onboard computer that makes it easy to analyze sealed objects and archive test data simultaneously. The database provides a historical record and facilitates the tracking of production yields.


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  • High sensitivity for smallest detectable leak rates of 4 x 10E-14 atm-cc/s
  • Combining Fine and Gross tests into a single operation results in fast and effective testing procedures
  • Simultaneous detection of FCs, Nitrogen, Argon, Xenon, etc.
  • Environmentally friendly - no toxic or hazardous materials required
  • Integrated LCD monitor provides simple operation
  • Onboard computer provides real-time data reading and recording
  • Industrial, user-friendly design
  • Suitable for leak test methods according to MIL-STD-750, method 1071, procedure CH1-CH2 and updated MIL-STD-883J, method 1014

Typical Applications

  • Large hybrid packages
  • Ultra-small volume devices, such as UB packages
  • High-reliability electronics
  • Implantable medical devices
  • Gas-filled electronic components


Type Pernicka 700H CHLD Cumulative Helium Leak Detector
Min. detectable leak rate for Helium (FINE mode) mbar•L/s >4E-14
Max. detectable leak rate for Helium (GROSS mode) mbar•L/s >E-4
Detectable masses 2-100
Calibrated built-in test leak mbar•L/s E-10
Test port DN 16 CF
Vacuum pump system turbomolecular pump, oil sealed roughing pump, cryo pump
Supply voltage unit V (ac) 220/240 (50/60Hz)10A
Supply voltage unit V (ac) 110/120 ( 50/60Hz) 15A
Supply voltage cryo compressor (air cooled ) V (ac) 208-240 (50/60 Hz)10A
Ambient conditions Indoor use only
Operational temperature 15-28
Weight 245
Dimensions (WxHxT) 660x1390x870

Part Number

Pernicka 700H CHLD Cumulative Helium Leak Detector
Part Number Description
550-700 CHLD Pernicka 700H, 120 V
550-701 Leak detector CHLD Pernicka ,230V


Pernicka 700H CHLD Cumulative Helium Leak Detector
Part Number Description
551-700S High Purity Gas Regulator customized
551-710 Large double O-ring chamber
551-711 Medium double O-ring chamber
551-712 Small double O-ring chamber
551-715 Small Metal Seal Chamber for CHLD
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