The buret is used to deliver known volumes during the course of a titration. Solutions are added to the buret by dragging the solution (either in a beaker or in a reagent bottle) to the buret and holding while the solution is poured in. The stopcock has four available delivery rates and is operated by clicking and dragging on the handle or by single-clicking on one end of the stopcock. The stopcock can be closed quickly by double-clicking on the center of the stopcock. In the Live Data tab, clicking on Buret will show a close-up of the meniscus in the buret. The volume can be read manually by interpolating the bottom of the meniscus against the volume scale on the buret, or the volume can be read automatically by saving data to the lab book by clicking on the Save Data button. More detail on automatically saving the titration data is given in the Saving Data section below.
Also located on the Live Data tab is the Graph display. Clicking on Graph will bring up a graphing window that will plot the pH (or potential for potentiometric experiments) as a function of volume titrated during the course of the titration. The graph will also plot the conductivity of the solution. The Save Graph button will save the graph to the lab book, and the Clear button will clear the graph. When allowed by the instructor, the Plot Window is an effective means to monitor the titration as titrant is added, but it is not intended for any serious data analysis. Data analysis should be performed on the actual data saved to the lab book.