COLORIMETRIC ANALYZER WITH IMPROVED ERROR DETECTION

A colorimetric analyzer includes a reaction chamber configured to receive a sample and at least one reagent. A measurement cell is operably coupled to the reaction chamber. The colorimetric analyzer has an illumination source configured to emit illumination at a first wavelength during a first absorbance measurement and at a second wavelength during a second absorbance measurement. The colorimetric analyzer also includes an illumination detector spaced from the illumination source such that illumination from the illumination source passes through the measurement cell to the illumination detector. A controller is coupled to the illumination source and the illumination detector. The controller is configured to detect an obstruction of light between the illumination source and the illumination detector based on the first and the second absorbance measurements. 色度分析仪包括配置成接收样品和至少种试剂的反应室。测量室可操作地耦合到反应室。色度分析仪具有照明源，照明源被配置为在第吸光度测量期间发射第波长的照明，并且在第二吸光度测量期间发射第二波长的照明。色度分析仪还包括与照明源间隔开的照明检测器，使得来自照明源的照明穿过测量室到达照明检测器。控制器耦合到照明源和照明