Leaks 4
Agilent 7697A Troubleshooting 49
Vial leak test, stage 1: Test up to SV1
During this stage, the HS flow paths are as shown in
Figure 7:
Figure 7 Flow paths: Vial leak test, stage 1: Test up to SV1
If the test fails this stage, check:
• SV1, the pressurization valve (contact Agilent for service)
• The O- ring seats on the PCM module connection (contact
Agilent for service)
SV1
PV2
Flow control module
1
2
3
4
5
6
Transfer
line
Vent
Carrier gas
Vial pressurization
gas
PS - Pressure sensor
FS - Flow sensor
SV - Switching valve
PV - Proportional valve
PV1
PS
FS
SV2
PS
Six port valve
Sample loop
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