The invention is directed to a NAND memory cell at an initializing state. An isolated point removal portion makes a replacement of image data at a point of an isolated point detected by the isolated point detection portion. A cylinder for driving the shaft acts upon the shaft by means of the inflow and, respectively, the outflow of a second operating fluid in a fourth chamber of the cylinder, to provide a forward starting position, in which the electrode is in contact with the nozzle, and a back operating position, in which the electrode is distanced from the nozzle, in the presence of the first gas. However, the shelf can be \u201cfine tuned\u201d vertically adjusted by moving the pins of the shelf brackets along the sideways and into selected pairs of the adapter bracket slots. The apparatus are suitable for a variety of electrochemical experiments, including surface electrochemistry, bulk electrolysis, and flow cell experiments.