1、察看温度的变化，是温度降的很慢，还是温度到必然值后温度有回升的趋势，前者就要检查一下，做低温试验前是否将工作室烘干，使工作室连结干燥后再将试验样品放入工作室内再做试验，工作室内的试验样品是否放置的过多，使工作室内的风不能充实轮回，在解除上述原因后，就要考虑是否是制冷系统中的故障了，这样就要请厂家的专业人员进行检修。
1, looking at the temperature changes, the temperature drop is very slow, or temperature to a certain value after the temperature has increased, the former should check whether low temperature drying, the studio before the test, the studio link drying after the test sample into the studio to do the test, the test sample is placed in the studio too much, so that the windcan't in the studio full cycle, in the lifting of the above reasons, it is necessary to consider whether it is the fault in the refrigeration system, so as to invite manufacturers of professional personnel for maintenance.
2、设备的利用环境不好所致，设备放置的环境温度，放置的位置（箱体后与墙的距离）要满足要求（在设备操作利用说明中都有划定）。
By 2, due to poor equipment, equipment placed in the environmental temperature, the location (distance and the wall of the box body) to meet the requirements (are delineated in the equipment operation using description).
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