Metrohm 884 Professional VA, Manual - Short Instructions

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3.3 Equipping the RDE measuring head
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884 Professional VA
Preparing and inserting the reference electrode
Proceed as follows:
1 Remove the reference electrode from the storage vessel.
The reference electrode that is part of the accessories is already filled
with reference electrolyte (c(KCl) = 3 mol/L).
2 Fill the electrolyte vessel with bridge electrolyte (e.g. c(KNO
3
) = 1
mol/L) in accordance with the information in the electrode leaflet.
3 Allow the bridge electrolyte to react in the electrolyte vessel until the
diaphragm is soaked with bridge electrolyte.
4 Place the reference electrode in the filled electrolyte vessel and screw
it in place.
The electrolyte solution that is displaced in the electrolyte vessel is
forced out of the deaeration openings.
Figure 40 Assembling the reference electrode with the electrolyte
vessel
5 Rinse the installed reference electrode with ultrapure water.