6 OPERATION
52
TITAN VERSA Operations and Maintenance Manual
LACO Technologies
The following accessories can aid in test this method. See Accessories for more details.
•
Helium Spray Gun (P/N: LHSP04 and LHSP07)
•
LHREG-01, 0-100 psi bottle regulator for helium gas bottle (P/N: CGA580)
6.4.2.2.
Inside
–
Out Leak Testing
For Inside
–
Out Vacuum leak testing, the test object is leak-tested inside a vacuum
chamber. The test part can be filled with helium either before or after being placed in
the vacuum chamber. The schematic below shows the test part being filled inside the
vacuum chamber. This method is ideal for a high sensitivity global leak test.
The following accessories can aid in testing using this method. See Accessories for
more details.
•
Gas Charge Manifold
•
LHREG-01, 0-100 psi bottle regulator for helium gases (P/N: CGA580)
Sniff Method Leak Testing
Sniff leak testing is an atmospheric leak test method. As such, the test ultimate test
sensitivity is 5e-7 mbar*L/sec. The test object is filled with helium gas (or another
tracer gas) and leaks are detected with a sniffer probe. Exact leak locations can be
detected. However, sometimes leaks can be missed if test operators move the probe
too quickly.
