DATA PRESERVATION METHOD IN DATA LOGGER

PURPOSE:To provide a data preservation method in a data logger capable of preserving the trend of original analog output with a little memory capacity. CONSTITUTION:When the maximum displacement width of sampling data is larger than a stipulated value set beforehand in any one of the respective judgement sections provided with the sampling data of evaluation sections A to G to be evaluation objects, all the sampling data of the evaluation sections are recorded and preserved. When the maximum displacement width of the sampling data is smaller than the stipulated value set beforehand in any of the respective judgement sections, only the respresentative data of the respective evaluation sections are recorded and preserved.