Dual Air Cleanup Repair; Removing The Dual Air Cleanup Assembly - ABB PGC2000 Operation And Service Manual

DUAL AIR CLEANUP REPAIR

The Dual Air Cleanup Assembly appears in analyzers having two detectors. Refer to Figure 8-47 for
Dual Air Cleanup Assembly component location.
It is the customer's responsibility to ensure that the area is safe and and hazard-
free, and will remain so the entire time the analyzer is open. This responsibility
includes ensuring adequate ventilation in analyzer shelter and obtaining proper
work permits, etc.
See "AIR PURGING" in Section 4 for the X Purge override function. Do not perform
override until you have read Section 4 completely and you understand and can
perform the procedure properly.
Let the Dual Air Cleanup Assembly cool a minimum of 30 minutes prior to
disassembly. Internal surface temperatures can cause severe burns if they are
touched before they have cooled.
No asbestos is used in any assembly or component part of the Dual Air Cleanup
Assembly. Therefore, all residual insulating materials may be disposed of without
regulator restrictions.
The high temperatures present under normal operating conditions can cause
wiring insulation to become brittle and fragile.
Ceramic temperature probes should always be considered fragile. When servicing
the Dual Air Cleanup Assembly, these component parts must be handled with
great care to avoid damage.

Removing the Dual Air Cleanup Assembly

1. Remove power from the analyzer.
8-72
Harness
Assembly
Air Cleanup
Tube #1
Figure 8-47. DUAL AIR CLEANUP ASSEMBLY
CAUTION
3 1 2 4
Air Cleanup
Tube #2
2000-OSM, F1