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我厂现有EIA-1A型CO_2红外线分析器,其测量范围0～50PPm,气室工作压力为5Kg/Cm~2。原设计用N_2气瓶减压后供给5Kg/Cm~2零点气进入分析器校零,需要配一套管线,工作较麻烦。后来,我们在红外线分析器进样前加烧碱石棉吸收原料气中的CO_2气,采用吸收CO_2以后的原料气来校零。经过九个月约40次使用,效果良好,既解决了零点气问题,操作又方便。
My factory existing EIA-1A CO_2 infrared analyzer, the measurement range of 0 ~ 50PPm, the working pressure of the gas chamber 5Kg / Cm ~ 2. The original design of N_2 cylinders after decompression supply 5Kg / Cm ~ 2 zero gas into the analyzer zero, need to be equipped with a pipeline, work is more troublesome. Later, we in the infra-red analyzer before the injection of caustic soda asbestos absorption of CO 2 gas feed gas, CO 2 after the absorption of raw materials to zero gas. After about 40 times of use in nine months, the effect is good, which not only solves the zero gas problem but also operates conveniently.