爱默生ControlWave分析(20201005143758)

Master Instruction
05.2003
MI EML0610 A-(en)
144LD Intelligent Buoyancy Transmitter with Torque Tube and Displacer for Level, Interface and Density with Communication HART / FoxCom
remote amplifier mounting kit
Repair and maintenance must be carried out by qualified personnel!
2
1 2 2.1 2.2 3 3.1 3.2 3.3 3.4 3.5 3.6 4 4.1 4.2 4.3 4.4 4.5 5 5.1 5.2 6 7 8 8.1 8.2 8.3 8.3.1 8.3.2 8.3.3 8.3.4 8.3.5 8.3.6 9 9.1
PAGE
DESIGN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 MAINTENANCE, REPAIR . . . . . . . . . . . . . . . . 25 Visual inspectiont . . . . . . . . . . . . . . . . . . . . . . . 25 Sensor check. . . . . . . . . . . . . . . . . . . . . . . . . . 25 Amplifier check . . . . . . . . . . . . . . . . . . . . . . . . 25 Replacement of amplifier alectronics or sensor . 26 Replacing displacer . . . . . . . . . . . . . . . . . . . . . 28 Dismantling and Mounting of 10.6 10.8 10.10 10.12 10.14 11 12 13 14 14.1 14.2 14.2.1 14.2.2 14.2.3 14.2.4 14.2.5 Sensor section . . . . . . . . . . . . . . . . . . . . . . . 29 Connecting rod of sensor cell . . . . . . . . . . . . 31 Heat sink . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Torque tube . . . . . . . . . . . . . . . . . . . . . . . . . 32 Wafer body bearing . . . . . . . . . . . . . . . . . . . 33 DIMENSIONING OF DISPLACER. . . . . . . . . . 34 SAFETY REQUIREMENTS . . . . . . . . . . . . . . 36 DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . 37 SUPPLY OF TRANSMITTER . . . . . . . . . . . . . 38 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Overview of application types . . . . . . . . . . . . . . 38 Supply via power supply unit . . . . . . . . . . . . . . 38 Direct supply . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Communication . . . . . . . . . . . . . . . . . . . . . . . . 39 Operating via I/A-System . . . . . . . . . . . . . . . . . 39 Intrinsically-safe application . . . . . . . . . . . . . . . 39 10.1 10.2 10.3 10.4 10.5

ACS713
Fully Integrated, Hall Effect-Based Linear Current Sensor with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor
The ACS713 is provided in a small, surface mount SOIC8 package. The leadframe is plated with 100% matte tin, which is compatible with standard lead (Pb) free printed circuit board assembly processes. Internally, the device is Pb-free, except for flip-chip high-temperature Pb-based solder balls, currently exempt from RoHS. The device is fully calibrated prior to shipment from the factory.
TÜV America Certificate Number: U8V 06 05 54214 010
Description
The Allegro® ACS713 provides economical and precise solutions for DC current sensing in industrial, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection. The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer. A precise, proportional voltage is provided by the low-offset, chopper-stabilized BiCMOS Hall IC, which is programmed for accuracy after packaging. The output of the device has a positive slope (>VIOUT(Q)) when an increasing current flows through the primary copper conduction path (from pins 1 and 2, to pins 3 and 4), which is the path used for current sensing. The internal resistance of this conductive path is 1.2 mΩ typical, providing low power loss. The thickness of the copper conductor allows survival

EMERSON Proห้องสมุดไป่ตู้ess Management – Educational Services
Course 7009 - Rev 5 - 8/15/02
Copyrighted Material / Duplication Prohibited
10-7
Parameter Security
Access the DeltaV Parameter Security Properties dialog box from DeltaV Explorer by selecting System Configuration → Setup → Security → Parameter Security → Properties
EMERSON Process Management – Educational Services
Course 7009 - Rev 5 - 8/15/02
Copyrighted Material / Duplication Prohibited
10-9
Field Security
Access the DeltaV Field Security Properties dialog box from the DeltaV Explorer by selecting System Configuration → Setup → Security → Field Security → Properties
EMERSON Process Management – Educational Services
Course 7009 - Rev 5 - 8/15/02
Copyrighted Material / Duplication Prohibited

【关键字】设计共两部分：1. 电子设备的自然冷却热设计规范2. 电子设备的强迫风冷热设计规范电子设备的自然冷却热设计规范2004/05/01 发布2004/05/01 实施艾默生网络能源有限公司目录6.2热测试的种类及所用的仪器、设备..........................................错误!未定义书签。

............................................................................................................错误!未定义书签。

7 附录................................................................................................错误!未定义书签。

7.1 元器件的功耗计算方法.............................................................错误!未定义书签。

7.2 散热器的设计计算方法.............................................................错误!未定义书签。

7.3自然冷却产品热设计检查模板..................................................错误!未定义书签。

前言本规范由艾默生网络能源有限公司研发部发布实施，适用于本公司的产品设计开发及相关活动。

本规范替代以前公司的同名规范，老版本的同名规范一律废除。

本规范更换了新的模板，并根据公司产品开发需求的变化及已积累的设计经验增加了新的内容。

本规范由我司所有的产品开发部门遵照执行。

本规范于2004/05/01 批准发布；本规范拟制部门：结构设计中心；本规范拟制人：李泉明；审核人：张士杰；本规范标准化审查人：数据管理中心；本规范批准人：研发管理办；1目的建立一个电子设备在自然冷却条件下的热设计规范，以保证设备内部的各个元器件如开关管、整流管、IPM模块、整流桥模块、变压器、滤波电感等的工作温度在规定的范围内，从而保证电子设备在设定的环境条件下稳定、安全、可靠的运行。