Leaks 4
Agilent 7697A Troubleshooting 57
Cross port leak test, stage 2: Test 6PORT (INJECT)
During this stage, the HS flow paths are as shown in
Figure 11:
Figure 11 Flow paths: Cross port leak test, stage 2: Test 6PORT (INJECT)
If the test fails this stage, check:
• A leak across six port valve ports 4 and 5, or 1 and 6.
Replace the valve rotor.
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
To Next Page
Loading...
Need help?
General
