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雷達液位計

QTRD雷達液位計属于通用型雷達液位計，它基于时间行程原理的测量仪表，雷达波以光速运行，运行时间可以通过电子部件被转换成物位信号。探头发出高频脉冲在空间以光速传播，当脉冲遇到物料表面时反射回来被仪表内的接收器接收，并将距离信号转化为物位信号。

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産品簡介 / Introduction

工作原理 / Working principle

雷達液位計是依据时域反射原理(TDR)为基础的雷達液位計，雷達液位計的电磁脉冲以光速沿钢缆或探棒传播，当遇到被测介质表面时，雷達液位計的部分脉冲被反射形成回波并沿相同路径返回到脉冲发射装置，发射装置与被测介质表面的距离同脉冲在其间的传播时间成正比，经计算得出液位高度。

测量方法：是依据时域反射原理(TDR)为基础的雷達液位計，雷達液位計的部分脉冲被反射形成回波并沿相同路径返但是考虑到腐蚀及粘附的影响，測量範圍的终值应距离天线的尖端至少100mm。对于过溢保护，可定义一段雷達液位計安全距离附加在盲区上。最小測量範圍与天线有关。随浓度不同，泡沫既可以吸收微波，又可以将其反射，但在一定的条件下是可以进行测量的。回到脉冲发射装置。

産品優點 / Product advantages

1、可以在真空中測量可以測量所有介質常數>1.2的介質，測量範圍可達70m；

2、供電和輸出信號通過一根兩芯線纜（回路電路）,采用4…20mA輸出或數字型信號輸出；

3、非接觸式測量安裝方便采用極其穩定的材料牢固耐用，精確可靠分辨率可達1mm；

4、不受噪音、蒸汽、粉塵、真空等工況影響；

5、不受介質密度和溫度的變化，過程壓力可達400bar,介質溫度可達-200℃至800℃；

6、安裝方式有多種可以選擇：頂部安裝、側面安裝、旁通管安裝、導波管安裝。

技術參數 / Technical parameters

性能	技術參數
傳感器類型	非接觸式電磁波傳感器
儀表類型	標准型、本安型、本安+防爆型
測量範圍	盲区0.3，測量範圍0-70m
結構特點	天線尺寸小，便于現場安裝，波束角小，能量集中，安裝靈活性強，現場可調整量程、盲區、語言、阻尼時間
測量精度	26G 液体±3mm 固体±15mm ；6.3G液体±10mm 固体±20mm
信號輸出	4-20mA带HART；MODBUS 485
過程連接	外螺紋DN50～DN250國際GB/T9123-2000法蘭
介質溫度	-40℃～+130℃、-40℃～+250℃，帶吹掃溫度散熱器-40℃～+400℃
過程壓力	-0.1Mpa～0.3Mpa，-0.1Mpa～4Mpa

産品如何選型 / How to select productss

測量介質、溫度，是否有腐蝕性

流量範圍、量程

壓力等級

是否現場顯示

工作電源

信號輸出、通讯

是否要防爆

安裝方式

精度等級

應用領域 / Application field

雷達液位計应用于石化、制藥、食品、城镇给/排水、水處理等行业。

一台滿足各類行業流量測量

石油

化工

制藥

食品

排水

水處理

安裝注意事項 / Installation precautions

1、盡量不要安裝在罐子中央。
2、離罐壁爲罐直徑1/6處，最小距離爲200mm。
3、不能安裝在入料口的上方。

我們能提供的服務 / The services we can provide

根據需求
推薦選型及報價
一
産品個性化
定制
二
7*24小時
全國服務熱線
三
上門指導
安裝
四

生産過程 / The services we can provide

01 機加工
02 檢驗
03 裝配
04 檢驗
05 校驗
06 包裝
07 發貨

青天儀表檢定裝置 / Qingtian instrument verification device

出廠前一對一標定

3毫米-3米 MT质量法水流量标定装置

DN800mm-DN2200mm容積法實流檢定裝置

DN3-DN15mm質量法標定裝置

DN65mm-DN300mm 多台串联质量法实流标定装置

熱品推薦 / Hot product

: 雷達液位計

QTRD雷達液位計属于通用型雷達液位計，它基于时间行程原理的测量仪表，雷达波以光速运行，运行时间可以通过电子部件被转换成物位信号。探头发出高频脉冲在空间以光速传播，当脉冲遇到物料表面时反射回来被仪表内的接收器接收，并将距离信号转化为物位信号。

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‘Are you going home?’ asked the other. ‘My wife, I know, is calling on Lady Keeling, and she will pick me up there. If she has not been so fortunate as to find Lady Keeling in, she will wait for me in the motor. May we not walk down there together?’ ‘My dear,’ he said, ‘I am so glad you have let me come to you. You are in deep waters, poor girl.’ I saw two. "Yes," he said, dismounting and motioning me to do the same. Kendall took our bridles. Leaving him with the animals we went over the fence, through the cotton, across the road at a point terribly near the lighted and guarded shop, and on down the field of corn, to and over its farthest fence; stooping, gliding, halting, crouching, in the cotton-rows and corn-rows; taking every posture two upright gentlemen would rather not take; while nevertheless I swelled with pride, to be alone at the side--or even at the heels--of one who, for all this apparent skulking and grovelling, and in despite of all the hidden drawings of his passion for a fair woman at this hour somewhere in peril, kept his straight course in lion-hearted pursuit of his duty (as he saw it) to a whole world of loves and lovers, martyrs and fighters, hosts of whom had as good a right to their heart's desire as I to mine or he to his; and I remembered Charlotte Oliver saying, on her knees, "I believe no beauty and no joy can be perfect apart from a love that loves the whole world's joy better than any separate joy of any separate soul." That Plato put forward the ethical theory of the Protagoras in perfect good faith cannot, we think, be doubted; although in other writings he has repudiated hedonism with contemptuous aversion; and it seems equally evident that this was his earliest contribution to positive thought. Of all his theories it is the simplest and most Socratic; for Socrates, in endeavouring to reclaim the foolish or vicious, often spoke as if self-interest was the paramount principle of human nature; although, had his assumption been formulated as an abstract proposition, he too might have shrunk from it with something of the uneasiness attributed to Protagoras. And from internal evidence of another description we have reason to think that the Dialogue in question is a comparatively juvenile production, remembering always that the period of youth was much more189 protracted among the Greeks than among ourselves. One almost seems to recognise the hand of a boy just out of college, who delights in drawing caricatures of his teachers; and who, while he looks down on classical scholarship in comparison with more living and practical topics, is not sorry to show that he can discuss a difficult passage from Simonides better than the professors themselves. Nor is this all. After sharply distinguishing what is from what is not, and refusing to admit any intermediary between them, Aristotle proceeds to discover such an intermediary in the shape of what he calls Accidental Predication.236 An accident is an attribute not necessarily or usually inhering in its subject—in other words, a co-existence not dependent on causation. Aristotle could never distinguish between the two notions of cause and kind, nor yet between interferences with the action of some particular cause and exceptions to the law of causation in general; and so he could not frame an intelligible theory of chance. 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雷達液位計

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