氧气检测仪检测不准是怎么回事?
众所周知,氧气是我们人类赖以生存的重要气体,其空气中氧气含量是否在安全范围内关系着工作者的生命安全,不可马虎对待。因此,对于很多的一些场所都需要安装或准备氧气检测仪,检测氧气浓度,从而防止作业环境缺氧和富氧。不过很多地方虽然配备了仪器,却常常检测不准确,那么氧气检测仪检测不准是怎么回事呢?下面逸云天小编为您介绍:

氧气检测仪检测不准的原因分析:
1、保持氧气检测仪校准环境的稳定,避免温湿度、气压、风速等发生剧烈变化的影响。
2、氧气检测仪的校准采用标准气样比对校准法,其各点误差不得超过检定规程的规定值。
3、通入标准气体的流量大小要严格按照说明书要求,流量过大或过小都会影响检测结果,造成测量误差。
4、如长期放置未使用的企业检测仪,应先通入3%标准气体对其催化元件激活后,再通入1%的标准气体进行调校,否则各点误差均不在合格范围内,造成校准失败。
5、应选用氧气检测仪本身的标气罩,如选用不合理的标气罩,会出现数值不稳不准确的现象。
综上所述,就是氧气检测仪检测不准的原因分析,其实就正常情况来说,大多数导致氧气检测仪检测不准的原因,主要是没有严格检查仪器是否处在正常工作状态,所以我们在使用之前切记要规范检测,如此才能得到准确的结果。
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