Metrohm 743 Rancimat - Manual (Page 92)

4.6 Determinations ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
84 ￭￭￭￭￭￭￭￭ 743 Rancimat
￭ Rinse the product thoroughly with distilled water.
￭ Clean the measuring vessel covers (5-16), the PTFE tubes
(5-17) and the electrodes (5-18) with acetone or 2-propanol
and rinse with distilled water. Pre-clean with washing-up liquid in
the case of severe contamination.
Remove the protective ring (5-19) to be able to clean the electro-
des.
2 Clean the reaction vessels and accessories
￭ Dispose of used reaction vessels and air tubes and use new
reaction vessels and air tubes for the next measurement.
￭ Clean the reaction vessel covers with acetone or 2-propanol
and rinse with distilled water. Pre-clean with washing-up liquid in
the case of severe contamination.
￭ Then heat the reaction vessel covers in the drying oven for 2
hours at 80 °C.
Note
Replace the reaction vessel covers if they are not tightly on the
reaction vessel anymore or the material is obdurate.
3 Clean the tubings
￭ Clean the silicone tubings (5-2) with acetone or 2-propanol and
rinse with distilled water. Pre-clean with washing-up liquid in the
case of severe contamination.
￭ Then heat the silicone tubings in the drying oven for 2 hours at
80 °C.
4.6.6 Adjusting the method parameters during the determination
1 Open the dialog window Live parameters
￭ In the Control window, click on the symbol or the menu
item View
▶ Live parameters....
The following dialog window appears: