9.1 ETO灭菌过程中，操作人员不得离开操作区域，必须持续观察ETO灭菌过程。如有异常现象，必须立即停机，切断电源进行检查。
9.2 每三个月更换一次供暖系统循环水。换水时，首先打开箱体底部和门下部的所有排水开关，将水彻底排掉。用清水冲洗管道和水箱后，重新注入新的循环水。
9.3 至少每 30 个 ETO 灭菌周期后检查并清洁空气、加热、蒸发和环氧乙烷系统过滤器，更换任何损坏或故障的过滤器。 （清洁介质可以包括水、压缩空气或蒸汽。）
9.4 Vacuum pressure gauges, pressure sensors, and other measuring instruments should be calibrated by the local metrology department every six months, according to national metrology laws.
9.5 Sealing gaskets should be replaced every six months.
9.6 Regularly check that all terminal connections in the electrical control system are secure.
9.7 At least once a day, inspect the circulation water, vacuum, ethylene oxide, steam, and vaporization device pipelines for leaks. If any leaks are found, measures must be taken to address them safely.
9.8 Lubricate the door hinges once a week and clean the interior walls, door frame, and hinges to ensure no dirt accumulates on the interior walls or hinges.
9.9 如果设备周围环境温度降至零摄氏度以下，设备无法连续运行，加热系统停止加热超过3小时，应将循环系统中的水排空，防止系统冻裂。
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