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TKWL-1900系列射频导纳物位开关

TKWL-1900系列射频导纳物位开关

TKWL-1900series RF admittance level switch

产品概述

  射频导纳是一种从电容式技术发展起来的、防挂料、更可靠、更准确、适用性更广的物位控制技术,射频导纳中的导纳的含义为电学中阻抗的倒 数,它由电阻性成份、电容性成份、电感性成份综合而成。而射频即发射高频无线电波,所以射频导 纳物位控制技术是通过用高频无线电波测量被测介 质导纳值来实现物位测量。

  射频导纳技术与电容式技术最重要的区别在于测量的多样化和三电极技术。射频导纳测量的多样 化在于不止是测电容量,测量的还有电阻和电感量,使测量更加准确。三电极技术包括电子单元和 传感器,在测量电极和地极之间加入屏蔽电极,测量电极保护起来,不受挂料影响。

Products  summary

  Radio frequency admittance is a material lelvel controltechnology, developed fromcapacitor technology, anti-hanging material, more reliable, moreaccurate and withmore extensive applicability. For radio frequency admittance, the meaningof admittance is reciprocal ofelectrical impedance, which iscomposed of resistivecomponent, capacitive component and perceptual component comprehensively, while the radio frequencycan be understood as emissinghigh- frequency radio wave, so the RF admittance level control technologyrealizes measurement for material levelby measuring the admittance ofmeasured medium with high-frequency radio wave.

  The most important difference between RFadmittance technology and capacitive technology is diversified measurement andthree- electrode technology. The diversification of RF admittance measurementlies in not only measuring capacitance but also resistance and inductance,which make the measurement more accurate. Three-electrode technology includeselectronic unit and sensor, add shield electrode between measured electrode andground electrode, protect measured electrode and not affected by hangingmaterial.

技术参数

◆电源要求:交流系统:标准:185~255VAC 50/60Hz 5W (最大)

直流系统:24VDC系统:19~29VDC输入 3W (最大)

◆输   出: DPDT继电器(双刀双掷)

触点容量 220VAC 3A 环境温度:-40~75℃

介质温度:-40~600℃(高温场合需选高温型)

◆延   时:1~55s(可选)

◆分 辨 率:<0.5PF

◆低位报警:现场可设置为高位报警方式或低位报警方式

◆温度影响:0.15pF/30℃

◆稳 定 性:0.1pF/6个(最漂移)

◆火花防护:内置火花防护电路

◆传感元件安装:NPT螺纹或法兰安装(规格可选)

◆插入长度:标准450mm(插长度IL)~250mm(屏蔽CSL长度) 也可依用户要求提供,最大6m最0.1m

◆电气接口:M20*1.5

◆分体电缆:标准长度为5,最长20(仅对分体)

◆重复性::<1mm(导电介质)   <10mm(绝缘介质)

◆响应时间:<0.5S

Technical   parameters

Requirement of power:ACsystem: standard: 185~255VAC50/60Hz 5W (max) DC system: 24VDC system: 19~29VDC input 3W (max)

Output: DPDT relay (DPDT)Capacity of touch point 220VAC 3AEnvironmental temperature: -40~75Medium temperature: -40~600(select high-temperature modelfor high temperature occasions)

Time delay: 1~55s (optional)

Resolution: <0.5PF

◆High-lowlevelalarm:thesitecanbesetashighlevelalarm method or low level alarmmethod

Temperature influence: 0.15pF/30

Stability: 0.1pF/6 months (max shift)

Spark protection: built-in spark protectioncircuit

◆Sensor  installation:  NPT  screw  thread  or  flange  installation(specifications are optional)

◆Inserting length: standard 450mm(inserting length IL)-250mm(shield length CSL) Can also be customized based onrequirements of users, max 6m and min 0.1m

◆Electrical interface: M20*1.5

◆Split cable: standard length is 5 meters, 20meters at   maximum

(only for split model)

◆Repeatability:<1mm(conductive  medium) <10mm(insulating medium)

◆Response time: <0.5S


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