Agilent Technologies 8860 User Manual page 81

5 Connect a flow meter to the GC GSV sample out tubing to measure the sample
6 If no issues were found from step1 to step 5, refer to the GC troubleshooting
Peak Areas Not Repeatable
1 There may be a restriction or leak in the selector system.
2 Refer to the GC troubleshooting manual to screen the GC system.
Low Peak Area or Height (Low Sensitivity)
1 There may be a restriction or leak in the selector system.
2 Refer to the GC troubleshooting manual to screen the GC system.
Contamination or Carryover
1 Make sure the vent outlet is not end capped.
2 Check for sample carryover from previous runs.
3 Run
4 Remove all the cylinders from the selector. Run
5 Clean or change the filters. (See
6 Refer to the GC troubleshooting manual to screen the GC system.
Agilent Gas Sample Selector for 8860 and 8890 User Manual
flow rate during selector loading stage and ensure that it matches the flow rate
set during installation. If the flow is zero or too low (normally the sample flow
>50 mL/min), there may be a restriction or leak in the selector system.
(See Restriction and leak check
manual to screen the GC system.
(See Restriction and leak check
(See Restriction and leak check
Purge mode in maintenance, purging the system using N
ghost peaks/carryover go away or get smaller.
purging the whole system using N
away or get smaller. (before running sweep, make sure to connect Swagelok
male connector to keep the flow path open). (See
page 66).
Maintenance and Troubleshooting
Chromatographic symptoms
on page 82).
on page 82).
on page 82).
Sweep mode
to see if the ghost peaks/carryover goes
2
Sweep mode
Replace gas filter for cylinder version
5
to see if the
2
in maintenance,
on page 74).
on
81