氧气检测仪读数不准是怎么回事?
在正常状态下,氧气检测仪在开机后会,屏幕的显示读数一般是在20.9%VOL左右。因为大气中的氧气含量基本上19.2%VOL-23%VOL正常范围值之内。但是,我们在使用的过程中,有时候会发现氧气检测仪读数会处于大于23%VOL或低于19.2%VOL这种现象,当出现这种现象时,往往说明氧气检测仪已经处于读数不准的状况中了。那么您知道氧气检测仪读数不准是怎么回事吗?下面逸云天小编为您介绍:

氧气检测仪读数不准的情况:
1、如果氧气检测仪测量氧气的读数小于19.2%VOL,说明仪器下飘,造成这种现象的最大可能是仪器灵敏度降低或是传感器滤网堵塞,造成仪器感应到氧气含量降低。
2、氧气检测仪测氧气的读数大于23%VOL,说明仪器上飘,是由长期超量程检测引起的。
若是氧气检测仪出现以上两种现象,先要做一下归零操作,操作步骤如下:
1、当氧气检测仪在没有相应气体的清洁空气中出现漂移现象时才可以做此操作。用户只需要拿着仪器到清洁的空气中,将数值调到20.9%VOL即可。
2、如果调解后仍然存在读数漂移现象,那请及时联系厂家专业技术人员指导处理,以便快速检测出氧气检测仪的问题所在,“对症下药”从根本上解决问题。
综上所述,就是氧气检测仪读数不准的处理方法,当出现这种情况时,大家切不可自己乱去操作,以免造成氧气检测仪的损坏等情况。
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