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所在平台: Udemy |
课程主页: https://www.udemy.com/course/instrumentation-ultrasonic-level-meter/
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课程名称：仪器仪表，超声波液位计 课程概述： 本课程将涵盖液位测量仪器的几种类型，主要分为两大类：点液位仪器和连续液位仪器。点液位仪器产生数字信号，用于检测特定液位（如满或空），而连续液位仪器则产生模拟信号，测量液位范围。 课程内容包括： 1. 案例学习教程：如何使用超声波液位（非接触式传感器）测量开放容器的液位。开放容器的液位控制系统在自动化中应用广泛，具有重要的行业应用。 2. 开放容器应用中的四个要点： a. 考虑开放容器的特征和条件，理解储罐的设计和环境。 b. 超声波传感器的安装条件及安装位置，确保正确安装传感器。 c. 将变量输入到变送器中，此步骤称为编程或调试。 d. 如何使用接线端子和电气布线连接传感器与变送器。正确的布线确保信号传输准确和安全操作。 3. 安装Endress Hauser的FDU90传感器后的步骤：连接传感器电缆与FMU90变送器，展示接线端子及电气布线。最后开机启动测量设备。 4. 通过本地显示器访问操作菜单：展示相关的显示与操作模块，包括测量设备的配置。展示Endress + Hauser品牌FMU90变送器的主界面及软键符号、按键、发光二极管等元素，以及参数值和单位的显示符号。 5. 按下右侧硬键进入菜单软键，主菜单界面将显示多个子菜单，包括：液位、安全设置、继电器/控制、输出/计算、设备属性、系统信息、显示、传感器管理等。进入液位菜单后，将看到基本设置、扩展校准和模拟等三个子菜单。 此课程将帮助学员深入理解超声波液位计的工作原理及应用，掌握相关的操作和安装技能，为工业自动化提供有效支持。
Main points that covered in the course:1- We will present some types of level measurement instruments. There are two main categories: - Point level instruments, which produce digital signals and are used to detect a specific level (such as full or empty). - Continuous level instruments, which produce analog signals and measure the level across a range.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,2- Case study tutorial:How to measure fluid level of open vessel using ultrasonic level (non contact sensor)Open vessel: Tank level control system is widely used in automation , common application in industry.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,3- we have 4 points in open vessel application:a. Features and conditions of the open vessel - understanding the design and environment of the tank. b. Mounting the ultrasonic sensor and installation conditions - where and how to properly install the sensor. c. Entering variables into the transmitter - this step is known as programming or commissioning.d. how to connect the sensor & the transmitter using terminal blocks and electrical wiring. Proper wiring ensures accurate signal transmission and safe operation.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 4- after mounting / install sensor fdu90 from Endress Hauser, in the last lesson.- Connect this sensor cables with transmitter fmu90 , i show you terminal blocks & electrical wiring.- Switching on the measuring device.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,5- Access to the operating menu via the local display:Elements of the display and operating module:Configuring the measuring device:i show u the main interface of fmu90 transmitter from Endress + hauser brand:1- Soft key symbolssoft shortcut menus at lcd:info , menu2- Keys3- Light emitting diodes to indicate the relay switching states4- LED to indicate the operational state5- Display symbol6- Parameter value with unit (here: primary value)Symbols for operating state,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 6- press right hard key to get to: menu soft keymain menu screen appear with these submenus:- level- safety settings- relay/control- output/calculate- device properties- system informat- display- sensor managementgo to level menu , then u see 3 submenus- basic set up- extended calibration- simulation,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
