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IR—12定碳仪是美Lcco公司七十年代的产品,采用高频炉熔样,红外检测,仪器带有自动重量补偿、电子秤、打印机等装置,该议器分“高”“低”两挡,按仪器说明书碳含量高于0.15％必需用“高挡”分析。低于0.15％应用“低挡”分析,以保证分析精度。由于原仪器在调试验收时“线性化”未调到最佳处,所以仪器实际上并未达到说明书指标,当碳含量高于0.08％时,低挡便不成线性,这时就要对碳的结果进行一次修正(即乘上一效正系数),这样作分析显然给分析人员带来不便,同时也增加了分析时间和分析误差。我们对IR—12定碳仪进行线性化调试后,“低挡”线性范围从原说明书的0.0001～0.15％扩展到0.0001～
IR-12 carbon detector is the product of the Lcco company in the 1970s. It adopts high-frequency furnace melting sample and infrared detection. The instrument is equipped with automatic weight compensation, electronic scale and printer. The device is divided into “high” and “low” Two block, according to the instrument manual carbon content higher than 0.15% must be “high block” analysis. Below 0.15% Apply “low range” analysis to ensure analytical accuracy. As the original instrument in the commissioning of acceptance, “linearization” is not transferred to the best place, so the instrument did not actually meet the specifications of the manual, when the carbon content is higher than 0.08%, the low block is not linear, then the carbon The result is a one-time correction (ie, multiplied by a positive-positive coefficient), which apparently brings inconvenience to the analyst and increases analysis time and analysis errors. After we linearized the IR-12 carbon analyzer, the linear range of “low range” extended from 0.0001 ~ 0.15% of the original specification to 0.0001 ~