ELTRA CS-580A, Manual

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6.1.2 Procedure of carrying out analyses with manual loading of the sample
WARNING
Fire hazard when handling the crucibles
Hot crucibles can fall down
−
Ignition of tables, floors, or any other surface the hot part falls on
−
Ignition of clothes and any other material
•
Always use tongs to handle crucibles
•
Always make sure that the disposal vessel is clear of any combustible
material and that the vessel itself can withstand the temperatures
introduced by the hot crucibles
•
If possible, let the crucibles cool down to room temperature before
disposing them.
Although the CS-580A (Helios) is equipped with an autoloader and normally analyses are
carried out using this autoloader, it is possible to load the sample manually for analysis.
•
Place an empty crucible on the balance.
• Tare the balance using the “F6-Tare” button located on the balance,
or the “Tare” button in the “Analysis control” window of the software
(F6 on the PC-keyboard).
•
Put around 250 mg of coal sample into the crucible.
• Press the “F4-Balance” button in the ”Analysis control” window of the
software (F4 on the PC-keyboard) to transfer the weight value from
the balance to the PC. The transfer function is performed regardless
of how often the button is pressed. This enables a correction of any
falsely entered weight.
• Enter the sample ID into the corresponding input field of the “Analysis
control” window of the software. This step is optional. If no sample ID
is required, the entry may be omitted.
•
Press the
“F2-Furnace” button to open the furnace (if it is closed).
•
Take the crucible from the balance and put it on the pedestal.
• Press the “F5-Start” button to begin the analysis.
From now on, no further operator intervention is required. The furnace closes and the analysis
is carried out automatically. At the end of each analysis, the results are displayed on the PC-
display and saved in the database of the software.
Remarks
The sulfur range should be deactivated when only carbon is required. This avoids undue delays
of the analysis caused by sulfur compounds which are difficult to burn, like it is in case of
cement analysis. Accelerators are also not necessary.