Maintenance | 4-13
8. Reassemble the Sample Probe:
a. Using the alignment dowel pin and Aspirator Insert as a reference,
place the Filter Plate on the Valve Cover.
b. Using the alignment dowel pin and Aspirator Insert as a reference,
lower the Filter Body onto the Filter Plate. Take care not to bind
the Aspirator Insert.
c. Properly orient the Heat Transfer Plate, place it on the Filter Body,
and secure these parts to the Valve Cover with the (4) M6 x 100
screws.
9. Secure the Heat Transfer Skirt to the Heat Transfer Plate with the (4)
M6 x 16 screws.
10. Replace the Sample Probe on the process duct.
All regulatory agency, personnel safety procedures, and installation/
removal procedures must be followed during the installation/removal
of the components that make up the sample system. A breathing appa-
ratus must be worn when installing/removing the Sample Probe. The
process duct may be under positive pressure, and injury or death from
inhaling toxic gases in the process could result from attempting to in-
stall/remove the equipment without the use of a breathing apparatus.
If applicable, remove the flange blind (or remove the cap) and connect
the Sample Probe to the process duct.
11. Using a suitable detergent-based leak detection fluid (e.g., Snoop
®
),
leak-check the threaded connections.
Do not use a leak detection fluid on hot fittings. If the analyzer/probe
system is at operating temperature, the temperature zone circuitry
must be powered down to allow the temperature zones to cool down
before using a leak detection fluid on the fittings.
For detailed information about leak-checking fittings, refer to “Sample
System Leak Check” in Chapter 3 of the analyzer manual.
Applications With a Threaded Connection:
Leak-check the Pipe Adapter threads (where the Pipe Adapter enters
the threaded connection on the process) and the Sample/Vent Line
connection points on the Sample Probe.
Applications With a Flange:
Leak-check the Pipe Adapter threads/replacement flange assembly,
and the Sample/Vent Line connection points on the Sample Probe.
!
WARNING
!
CAUTION
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