Inlet Systems
Split/splitless capillary inlet
113
The split ratio is an indicator of the fraction of total sample entering the
column: the higher the value, the less sample enters the column.
For setting flow for split sampling, see Chapter 4 of the HP 5890
Operating Manual.
Verifying inlet purge status
Verify that inlet purge flow is currently on, and will remain on
throughout runs to be made in split sampling mode.
To display current inlet purge status:
PURGE/VALVE
A
( or
B
)
If OFF is displayed, press
ON
to restore inlet purging.
To display elapsed time during a run when inlet purging will be
halted:
PURGE/VALVE
A
( or
B
)
TIME OFF
To display elapsed time during a run when inlet purging will be
restored:
PURGE/VALVE
A
( or
B
)
TIME ON
(or
ON
alone if PURGE TIME is already displayed)
For split sampling, both times should be set to 0.00 and inlet purging
must currently be ON. If necessary, this is done simply by pressing
0
ENTER
when PURGE TIME OFF (or ON) is displayed.
