Metrohm 893 Professional Biodiesel Rancimat - Manual (Page 39)

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
4 Operation
893 Professional Biodiesel Rancimat
￭￭￭￭￭￭￭￭ 31
4 Connecting and inserting reaction vessels
NOTE
The temperature defined in the method has to be reached before
you insert the reaction vessels, i.e., the temperature display has to
be green.
￭ Seal the unused positions with stoppers or empty reaction vessels
for protection against impurities.
￭ Connect the Iso-Versinic ® tubing which is connected to the reac-
tion vessel covers to the M8 tubing adapter/olive of the measur-
ing vessel covers.
￭ Screw the pieces of FEP tubing 250 mm to the M8/M6 thread
adapters of the reaction vessel covers and the air supply connec-
tors of the 893 Professional Biodiesel Rancimat.
￭ Insert the prepared reaction vessels into the recesses of the heat-
ing block.
￭ Press the start button to start the data recording immediately
after inserting each single reaction vessel.
4.3.3 Cleaning the accessories
1 Cleaning the measuring vessels and accessories
￭ Pre-clean with dishwashing detergent in the case of severe con-
tamination.
￭ Clean used measuring vessels after pouring off the measuring
solution with acetone or 2-propanol or in the dishwasher.
Pre-clean with dishwashing detergent in the case of severe con-
tamination.
￭ Thoroughly rinse with distilled water.
￭ Clean the measuring vessel covers, the PTFE cannula and the
electrodes with acetone or 2-propanol or in the dishwasher and
thoroughly rinse with distilled water.
Pre-clean with dishwashing detergent in the case of severe con-
tamination.
Remove the protective ring to facilitate cleaning of the electrodes.
￭ Clean used measuring vessels after pouring off the measuring
solution with acetone or 2-propanol or in the dishwasher.
Pre-clean with dishwashing detergent in the case of severe con-
tamination.
￭ Thoroughly rinse with distilled water.