Maintaining the Instrument
User Information
155
4
Tighten or reconnect the carrier gas connection at the
transfer line. Open the shutoff valve to pressurize the carrier
flow path. The Carrier (PSI) should recharge within a
minute.
5
Open the lid. The sample probe disengages from the leak test
vial. The Vial (PSI) should drop to almost 0 psi within 1
minute.
6
Turn off the carrier shutoff valve at the back of the
Headspace Sampler.
7
. Record the time and initial pressure values in
the table.
8
Allow 5 minutes to pass. Record the final time and pressure
values in
. Carefully close the lid of the sampler so
the sample probe enters the leak test vial.
A pressure decay of more than 2 psi over 5 minutes indicates a
leak. If there is a leak, call an Agilent service representative.
Press the
Clear
key to end the leak test.
Table 19
Pressure decay test part 4B
Final time
Initial time
Difference
Time
5 minutes
Flow path
Initial pressure
Final pressure
Carrier
medium_standard.book Page 155 Tuesday, February 17, 2004 10:14 AM
