PURPOSE: To shorten the time for obtaining experimental data so that preparations for the next experimental sequence can be started earllier.

CONSTITUTION: In the case experimental data is displayed automatically on a CRT and it is desired to output a hard copy, an operator's operation procedure required for obtaining the experimental data is registered in an operation registering file before an experimental sequence in started. After the experimental sequence is finished, when an automatic display and an automatic hard copy are executed (step 12), the data is obtained from the operation registering file (step 13), and by the obtained operation procedure, all the experimental data is outputted successively to the CRT and a hard copy apparatus (steps 14, 15).