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    [note] => 工作原理：MAY-2001-JQ在工作时，通过内置的电机产生的高频振动在不同密度浓度的液体介质中产生的振动频率不同，振动的频率通过一个压电晶体检测出来，通过移相和放大电路，再由微处理器转换成密度浓度数字信号。
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                                                          秒准（Mayzum）MAY-2001/MAY-2001H-JQ
                                                                         在线甲醛溶液浓度在线监控仪

一、工作原理：MAY-2001-JQ在工作时，通过内置的电机产生的高频振动在不同密度浓度的液体介质中产生的振动频率不同，振动的频率通过一个压电晶体检测出来，通过移相和放大电路，再由微处理器转换成密度浓度数字信号；通常情况下不同浓度的液体，其密度与浓度会呈现一定的数学关系。
二、适用国标：符合工业用甲醛溶液甲醇溶液浓度测试标准。
三、特点描述：
1、即插即用，免维护：安装方式灵活（安装于管道、槽体、反应釜、储罐…）、体积小巧，安装方式多样化，可选卡箍/法兰/螺纹安装；
 
2、拥有强大的数据库，内置0-80℃温度补偿数据，克服了单片机内存小，温度补偿范围受限制的缺点。温度传感器与密度探头集成，紧贴测量介质，保证温度补偿及时、准确、可靠；
 
3、不受介质颜色变化影响，不易受振动、压力变化的影响；
 
4、出厂附带标定证书，无需现场校准，也不需要定期校准；
5、用户自定义上下限报警，触屏输入，操作简单易懂，现场可接报警灯；
 
6、标配多组信号模拟输出：可选4-20mA、RS485/232数字量、开关量（异常报警,上下限2路输出），便于客户集成控制，提高自动化程度，提高生产效率；
 
7、采用4.3寸触屏人机交互界面，显示内容更详细，彩色界面，操作便利，可拓展性强，可按用户需求定制界面和功能；
 
8、数据自动保存，便于查询：历史数据查询、生成历史数据曲线，快捷查询、导出EXCEL，自动数据分析与汇总，数据保存周期12个月，便于溯源（需选配MAY-LST历史数据存储功能）；
 
9、支持sqlite数据库，可存储高达16G的历史数据，数据可通过U盘导出到电脑或者通过无线远传功能实时远传至PLC、PC、DCS等上位机系统；通过PC远程查看实时状态与报警。（需选配MAY-LOT数据远传模块）
 
10、连续测量，迅速反馈，消除人工检测误差，不再需要人工频繁取样检测，节省大量人力财力，保证数据一致性，提升产品质量；
 
11、采用智能化芯片，运行无需试剂耗材，功耗低，稳定性高，使用寿命长。
四、规格参数选型表：
五、显示界面参考图：
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