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目前,国内大部分市、县和厂矿计量部门尚未开展721型光度计的检定工作,现行检定规程也未规定统一的检定周期。在不与检定规程发生矛盾的前提下,对该种光度计的性能作一些简单易行的测试和调校是很必要的。本文介绍一种用自动平衡记录仪调校与记录721型分光光度计性能的方法。一、测试条件与设备测试前将仪器光亮调节器置于使用位置附近,在使用状态下预热20分钟。溅试重现性、灵敏度、线性误差时,一律使用10mm光径的比色皿。 0～300V交流电压表一只,也可用万能表
At present, most of the municipal, county and factory measurement departments have not carried out the verification of the 721 photometer, and the current test procedures do not stipulate a uniform verification cycle. Without inconsistency with the verification procedure, it is necessary to make some simple tests and adjustments to the performance of the photometer. This article describes a method for calibrating and recording the performance of a 721 spectrophotometer using an automated balance recorder. First, the test conditions and equipment Prior to testing the instrument light regulator placed in the vicinity of the use of location, in use warm-up for 20 minutes. Splash test reproducibility, sensitivity, linearity error, all use the 10mm optical path cuvette. 0 ~ 300V AC voltmeter can also be used multimeter