What should I do to change the capacity of the H-1700 (for titration) buret cylinder?

The dripping doesn’t proceed even after starting titration normally.

The buret suddenly stops moving up and down.

I use the moisture meter with the vaporizer connected to it but the background won’t drop (won’t stabilize).

I purchased a reference electrode but there are something like salt crystals attached to the electrode.

It seems that the internal liquid of the electrode is running out quickly. What is the average?

What is the difference between a composite electrode and a single electrode?

What is the replenishment timing and replenishment rate of the electrode internal liquid?

What is the storage method for the RE-201 type reference electrode?

Please tell me the difference between indicating electrode and comparative electrode.