Teledyne GC-Pro/TCD - Gas Chromatograph - Manual (Page 19)

GC-Pro TCD Introduction
Teledyne Analytical Instruments 5
Figure 1-2: GC-Pro TCD Rear Panel
Internally, there are three isothermal chambers each separately
controlled for precise control and separation of analyzed species. In the
electronics section, internal PC boards are stacked in an assembly in an
order based on inter connectivity needs between the PCBs as well as
their association with other sub assemblies distributed within the system.
See Figure 1-3.
Following is the card stack-up from top to bottom planned inside the
system
 Heater card
 9261 controller card
 Analog data acquisition card
 Analog signal conditioning card
 89C5131 controller card