A liquid ejecting head includes a piezoelectric element having a first electrode, a piezoelectric body layer, and a second electrode, in which the piezoelectric body layer is formed of complex oxide of a pevroskite structure including at least bismuth, barium, iron, and titanium, and the mole ratio of titanium to barium is 1. SRAM array includes a plurality of sets of word lines. The condensed refrigerant is passed through the energy recovery device to expand the refrigerant. Thus, positive feedback loops are avoided and better control of the analyzer is permitted.