Maintaining the Instrument
User Information 153
8 Allow 5 minutes to pass. Record the final time and pressure
values in Table 16. 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. Fix
any leaks before continuing the leak test.
Pressure decay test part 3: Inject mode
This pressure decay test checks for leaks in inject mode.
Perform the following steps to run the pressure decay test:
1 Open the shutoff valves on the back of the Headspace
Sampler.
2 Wait 5 minutes for the flow paths to pressurize and
equilibrate.
3 Turn off the shutoff valves on the back of the Headspace
Sampler.
4 Print Table 17. Record the time and initial pressure values in
the table.
Tabl e 16 Pressure decay test part 2B
Final time Initial time Difference
Time 5 minutes
Flow path Initial pressure Final pressure
Carrier
Tabl e 17 Pressure decay test part 3
Final time Initial time Difference
Time 5 minutes
Flow path Initial pressure Final pressure
Carrier
Vial pressurization
medium_standard.book Page 153 Tuesday, February 17, 2004 10:14 AM
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