A system and method for protecting a reverse battery protected device during loss of battery are disclosed. The execution control section, when executing the operation commands, checks whether the block of each operation command is the block immediately preceding a block relating to the changed portion, and when judging that it is the immediately preceding block, temporarily stops the operation of the feed mechanism before or after the execution of the operation command. It is thus possible to inhibit sample contamination and suppress the occurrence of defects in a process following measurement of the samples. A circuit including thin film transistors of a polycrystalline silicon film anisotropically crystal-grown and having crystal grains aligned in its longitudinal direction with a current direction is provided in the whole or partial surface of the display pixel block and circuit blocks. The terminal assembly includes a current conducting pin assembly comprising a first pin member electrically connected to a second pin member at a conductive core and a first and second seal that electrically isolate the pin assembly from the housing.