Figure 2-10 Manifold Assembly - ABB NGC8206 User Manual

Figure 2-10 Manifold Assembly

2.3.5.3 Analytical Processor Assembly
The analytical processor board provides real-time system control and
measurement of the analytical processes within the NGC. It does this by
interfacing with all of the sensors in the GC module (and optional feed-through
temperature sensor) as well as controlling the carrier pressure regulator valves,
sample stream valves, the pilot valve and the heaters. The data generated by the
analytical processor is passed to the digital controller board via a high speed serial
interface.
The analytical processor also has two status LEDs used for troubleshooting. The
red LED indicates that the board is powered on. If the board is remotely powered
down by the digital controller, or has no power, this LED is off. The yellow LED
indicates that the analytical processor's CPU has booted its program successfully
and is controlling its processes as directed by the digital controller. This LED
should be flashing at a high speed (between 20-40Hz). If this LED is off or is on
solid with no flashing, then the software in the analytical processor is not running
properly.
Figure 2-11 shows the analytical processor assembly. This is not a field-
replaceable part.
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