Faults
36
High carbon results are erratic:
Even if the filter may be brushed and cleaned in ultrasonic cleaner, someday will not be able to
be cleaned any more. Filters don’t last forever.
Clean the filter and make some analyzes again. Should the results still be erratic, replace it by a
new one.
Sulfur results are not repeatable:
:
When the Sulfur results are not stable, but the carbon results are good, there are two possible
reasons
–
The magnesium perchlorate (anhydrone) is saturated.
Replace the complete contents of the glass tube after the corresponding furnace.
–
There is sulphuric acid in the combustion tube of the resistance furnace. Replace the
combustion tube, see chapter
“
Replacing the combustion tube
”
If the combustion tube (
4
) was in
use
for a
very
long time
and many samples with
high Sulfur
were analyzed, then sulfuric acid may build up in the rear-side of the combustion tube.
When the heated tube is removed together with the connector (
5
), a
brown fluid
can be seen in
the ceramic tube.
During the analysis, some
SO
2
is trapped in this fluid, causing
non
repeatable
results. It is recommended to
clean
the furnace outlet tube.
4
5
Содержание CS-2000
Страница 2: ...2 Copyright Copyright by Eltra GmbH Retsch Allee 1 5 D 42781 Haan Germany ...
Страница 6: ...Notes on service instructions 6 ...
Страница 72: ...Adjustments 72 Fig 57 Gas flow regulation The flow controller mainly consists of the following components ...
Страница 77: ...Adjustments 77 Fig 61 IRC 1 3 ...
Страница 107: ...Service 107 Fig 91 Tubes to squeeze ...
Страница 120: ...Miscellaneous 120 6 1 2 Left hand side Fig 106 Left hand side view ...
Страница 122: ...Miscellaneous 122 6 1 3 Right hand side Fig 107 Right hand side view ...
Страница 129: ...Miscellaneous 129 6 1 7 Infrared cell Fig 111 Infrared cell ...
Страница 139: ...Miscellaneous 139 Fig 119 Left hand side power wiring 6 2 3 Valve wiring ...
Страница 140: ...Miscellaneous 140 Fig 120 Valve wiring 6 2 4 Control signal wiring Fig 121 Control signal wiring ...
Страница 142: ...Miscellaneous 142 6 2 6 IR cell internal signals Fig 123 IR current supply new version ...
Страница 145: ...Miscellaneous 145 6 3 2 Gas flow for induction furnace when furnace is open ...
Страница 146: ...Miscellaneous 146 6 3 3 Gas flow for resistance furnace ...
Страница 147: ...Miscellaneous 147 6 3 4 Valve contolling ...
Страница 160: ...Copyright Copyright by Eltra GmbH Retsch Allee 1 5 D 42781 Haan Germany ...