Agilent Technologies 7890 Series - Preparing the Interface for Direct Sample Introduction

140 Advanced Operation Manual
3 Inlets
Preparing the Interface for Direct Sample Introduction
Before you can operate your interface in direct mode, you
must:
• Disconnect the split vent line
• Configure the GC for a direct injection
Disconnecting the split vent line
1 Press [Front Inlet] or [Back Inlet]. Turn off the interface
temperature and pressure and allow the interface to cool.
2 If desired, remove the transfer line by loosening the hex
nut with a wrench.
3 Remove the clamping plate from the interface by
loosening the captive screw with a screwdriver. Put the
plate in a safe place.
4 Carefully lift the interface out of the heater block.
WARNING
Be careful! The interface may be hot enough to cause burns.