Replacing The Ptv With Cooling Assembly - Agilent Technologies 6890 Series Service Manual

240 Programmed Temperature Vaporization Inlet (PTV)
Replacement procedures
7. Disconnect the power cable, thermocouple connector, and cryo connector
from the flow module and board. Disconnect the module ribbon cable
from the pneumatics board.
8. Slide the flow module out of the chassis, remove the chemical trap
assembly from the mounting bracket, and remove the PTV assembly from
the GC.
9. Removing the entire PTV assembly.
10. Replace the PTV assembly and flow module and re-assemble in reverse
order.

Replacing the PTV with cooling assembly

The PTV with cooling assembly, shown in Figure 240-10, is generally the
lowest level replacement part.
Figure 240-10
1. Turn off the inlet and allow the inlet to cool.
16 of 46
PTV with cooling assembly
Inlets
Agilent 6890 Gas Chromatograph Service Manual
Jun 2001