6-4
Ver.1.36
(4) Remove ITF union N using a 12 mm wrench. The ITF union and pyrolysis tube may stick together.
When this happens, heat the ITF union with a torch to detach the pyrolysis tube from interface
needle. If the ITF union is separated from the pyrolysis tube, remove the liquid sampler located at
the top of the pyrolyzer. Then using the supplied hexagonal screw driver (2 mm), push the
pyrolysis tube down and remove it.
(5) Insert a new or clean quartz pyrolysis tube through the bottom of the pyrolyzer furnace. Ensure
that the tube end with larger inner diameter goes into the furnace first. While gently rotating the
tube, push the bottom of the tube toward the sampler base until the bottom end of the tube sticks
out by 1-2 mm from the bottom surface of the pyrolyzer.
(6) Attach a new graphite Vespel ferrule to the bottom of the pyrolysis tube which is sticking out from
the pyrolyzer at the bottom. Make sure that the large outer diameter end goes in first. Finger -
tighten the ITF union.
(7) Gently insert the supplied hexagonal screw driver from the top of the pyrolyzer and push the
pyrolysis tube down until the end of the quartz tube hits the ITF union. Failure to do so will create a
dead space and lead to broadening of peaks on pyrogram.
ITF Union N
(use 12 mm wrench)
Push the quartz pyrolysis tube down by inserting hexagonal
screw driver through the tube. As shown, the end of the
driver is hitting the bottom end of the tube where sample cup
situates
Graphite Vespel ferrule
(Lager outer diameter end
goes in first.)
ITF Union
(finger-tighten it)
Push the pyrolysis tube down
using hexagonal screw driver
(2 mm).
To Next Page
Loading...
Need help?
General