Maintenance
44
•
Replace the cotton wool. It should be replaced earlier when the upper half becomes dark.
See chapter
NOTICE
The above is related to steel analyses and oxygen 99.5% pure.
NOTICE
There are especially developed chemical qualities and accelerators for analytical instruments.
–
Magnesium perchlorate (Anhydrone), Sodium hydroxide (ascarite) and iron phosphate,
among others. Normal commercially available materials of this type either fall short or
they are entirely useless for this purpose.
–
Normal magnesium perchlorate, for example, causes memory effects causing non
repeatable results. A further typical effect is that the analysis takes too long and often
never comes to an end. This effect also occurs with magnesium perchlorate of suitable
quality after been saturated.
–
Normal sodium hydroxide binds CO2 quite inadequately at room temperature. The
special quality, on the other hand, reacts quite well at room temperature and has at the
same time an indicator (grey coloration when saturated).
–
The glass tubes and the O-rings should only be greased with high vacuum grease.
Ordinary silicon grease is inadequate.
–
It is up to the user to test common materials. The analyzer will not be damaged. When
however problems appear, proper quality materials should be used which are in
absolutely unsaturated condition, before technical service is called.
–
The chemical flasks must be immediately and quite securely closed, so that they are not
saturated with CO2 or moisture from the environmental air.
6.2 Reagent tubes
– removing and installing
CAUTION
C10.0076
Scalding/burns
Hot furnace / combustion tube / analyzer parts
Parts of the analyzer can be very hot.
•
Use heat protecting gloves.
CAUTION
V0062
Injuries in the form of cuts and other personal injuries
Danger from glass splitters
–
Injuries in the form of cuts can be caused by damaged sample flasks and
glass splitters.
•
Replace damaged sample flasks
•
Do not touch glass splitters with your hands.
CAUTION
C11.0081
Danger of bursting
Defective reagent tubes may cause injuries in the form of cuts and other
personal injuries.
•
Before installing the new reagent tubes, check if they are damaged.
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Страница 80: ...Function description 80 Fig 51 Gas flow system ...
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Страница 98: ...Miscellaneous 98 8 1 12 Tic module Fig 66 TIC module 35543 9008 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ...
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