1
Installation
Making the Gas Supply Plumbing Connections
12
TRACE 1300 and TRACE 1310 Hardware Manual
Thermo Scientific
Testing for Leaks
Once you have connected the gas supplies to the GC, you need to test the gas supply lines for
leaks.
To perform a leak test
1. Be sure that GC is powered off.
2. Open and set the gas supply.
a.
Open the gas supply.
b. Set the carrier gas pressure to approximately 50 kPa (7 psi) higher than the maximum
pressure of the GC regulator.
c.
Set the detector gas pressures to approximately 1000 kPa (145 psig) if available,
otherwise set the maximum pressure allowed, for example 500 kPa (72.5 psi).
3. Check for leaks.
a.
Use a handheld electronic leak detector (Thermo Scientific GLD Pro leak detector or
equivalent) to check each fitting for leaks.
b. If you detect a leak, tighten the connection and retest it.
c.
Repeat this process until all connections are leak free.
CAUTION
Before performing a leak test make sure that the GC is powered off and the
power cable is unplugged from the AC Input connector (Mains socket) and from the wall
outlet.
