硅表5000.pptVIP

控制模块 流向示意图 样品线 外部压力源 推进式压力释放阀 5000 系列硅酸盐测定仪的流向示意图 样品通过一个双向阀被导入样品池。要保持有连续的样品连 续地到达测定仪，仪器提供了样品压力调节工具，利用一个 可以调节的针阀来使流体消除死延迟。要求有 5± 3 psig （100~300 mL/min）压力的样品以确保得到充足的流量。在 每次测定循环的开始，输入样品被导入样品池。样品池体积 被充满 10 次。过多的样品流通过一个溢流堰而放空。通过 溢流堰能够维持一个精确的样品体积。试剂存放于标称值为 12±3 psig 的压力容器中。通过监测试剂的压力和温度，测 定仪能够通过对螺线管阀的开放进行定时来分配液体。 一旦样品池已经被充满，分析方法中所描述的顺序来加入试剂。 在试剂加入后将启动磁力搅拌电机以确保充分混合。 在进行比色测定之前电机将被 关闭，允许样品达到稳定并且气 泡都已升起。在校准循环中，保存于试剂瓶中的标准溶液被加到正常样品 所对应的样品池中。对标准溶液按照正好相同的方法进行分析， 结果用来计算校准曲线的斜率。这个斜率因子用于所有 未来的测定以计算样品浓度，按照下面的公式： SiO2 = 斜率×log（参考值/样品值） * 28 If the sample temperature is low and the customer wants to increase the cycle speed to the shorter cycle time, he must install the optional sample heater and switch the instrument programming to the short cycle. There is a 10 degree overlap on the temperatures where an operator has a choice on whether to use or not to use a heater. If there are chances of temperature fluctuations in the sample, use of the heater is recommended. * 20 The analyzer system shut-down will automatically shut down the analyzer when sample flow is interrupted * 27 This is the start of the information on individual analyzers. We used to have the Trace Pump Analyzer for silica that would do 6 sample streams at once. It just sequenced through them. It was replaced with the Series 5000. These are the only regularly scheduled maintenance required on the Series 5000. * 每年更换一次比色计灯泡   * 八路样品顺序采样，220 Vac, 50 Hz 样品序列编程器 * 四路采样阀模块 * 八路采样阀模块 * Thanks * * 2 These are the current models available for the 5000. Each will be discussed over the next few slides. * 10 * 11 * 25 The next two slides give a brief overview of the method of analysis. This is the same chemistry used in the lab analysis for silica. The reagents can be used in the lab as well. All the Series 5000 analyzers take a zero reading to blank out any color or turbidity in the sample. * 12 * In the next batch of sl