As a temporary solution, you can replace the bridge electrolyte with a water-free electrolyte, e.g., c(LiCl) = 2 mol/L in ethanol.
We recommend a completely water-free reference electrode for permanent application. Both the reference system and the electrolyte vessel are filled with a water-free electrolyte. For this purpose, the internal reference system is also available dry with no electrolyte. The order number for this is 6.0728.010. The bridge electrolyte vessel 6.1245.010 is compatible with this.
c(tetrabutylammonium chloride) = 0.1 mol/L in acetonitrile, for example, is a suitable reference electrolyte. The electrolyte used for the application can be used as the bridge electrolyte. You must bear in mind that the electrode has a different reference potential with this reference electrolyte than with c(KCl) = 3 mol/L.
Reference systems with an LL Ag/AgCl system (6.0728.x30) are not suitable for use with acetonitrile.