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超聲波明渠（巴歇爾槽）流量計

超聲波明渠流量計與量水堰槽配合使用，測量明渠內水的流量。常見明渠有三角堰、矩形堰、巴歇爾槽。主要用于測量汙水廠、企事業單位的汙水排放口、城市下水道的流量及灌渠等。由于采用非接觸的方法測量，因此在粘汙、腐蝕性液體情況下，比其他形式的儀表具有更高的可靠性。

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産品簡介 / Introduction

超声波明渠流量计是在非满管状敞开渠道测量自由表面自然流的流量儀表。非满管态流动的水路称作明渠,测量明渠中水流流量的称作明渠流量计(open channel flowmeter)。明渠流量计除圆形外,还有U字形、梯形、矩形等多种形状。

巴歇尔槽

産品優點 / Product advantages

1、可測量非滿管（圓管、蛋形管或其它異形管）流量；
2、可測量渠道（圓形渠、矩形渠或其它異形渠）流量；
3、可測量天然的河、溪流量；
4、可測量汙水排放渠道或管道（下水道）流量；
5、可測量正向和反向流速和流量；
6、可提供瞬時流量值和累計流量值；
7、輸出信號：RS-485、Modbus、4-20Ma電流信號和多路開關量；
8、傳感器可在惡劣的現場和汙水水質下長期工作；
9、可選配短信或GPRS無線模塊實現遠程遙測；
10、傳感器外殼爲聚碳酸酯，防護等級IP68；
11、內置自動溫度補償；
12、盲區可調節，屏蔽探頭附近幹擾信號。

技術參數 / Technical parameters

性能	技術參數
水位測量範圍（m）	0～3.0m
盲區（m）	0.3m
整機測量精度	系統誤差±3‰
流量測量範圍	取決于所用堰/槽類型，最大可爲9999m3/h
工作溫度(℃)	－20℃～+60℃
最小水位分辨(mm)	±1mm
信號輸出	RS485，4～20mA，2路開關量輸出
顯示	液晶顯示
供電電源	DC24V /150mA ；AC220 /100mA
防護等級	IP65

産品如何選型 / How to select productss

介质：所测介质的类型酸碱性和温度方便看是否要巴歇尔槽槽的材质

流量：渠道尺寸根据具体的流量和河道的尺寸进行选型三角堰矩形堰还是巴歇尔槽

精度等級

供電方式

應用領域 / Application field

明渠流量計應用場所有城市供水引水渠；火電廠引水和排水渠、汙水治理流入和排放渠；工礦企業水排放以及水利工程和農業灌溉用渠道。

一台滿足各類行業流量測量

汙水治理

工礦水排放

水利工程

農業灌溉

安裝注意事項 / Installation precautions

明渠超聲波流量計的安裝形式有支架安裝和法兰安裝，若现场条件允许优先选择法兰安裝，法兰安裝更便于调节探头发声方向与水面的垂直。由于超聲波流量計发射角与盲区的存在，最高水面距离探头底面要大于盲区距离，我们在选择安裝位置时不能离渠道边缘太近，应装在渠道的中线上方以免影响仪表的正常工作。

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

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全國服務熱線
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生産過程 / The services we can provide

01 裝配
02 標定
03 出廠檢驗
04 包裝
05 發貨

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

出厂前一对一標定

3毫米-3米 MT质量法水流量標定装置

DN800mm-DN2200mm容積法實流檢定裝置

DN3-DN15mm质量法標定装置

DN65mm-DN300mm 多台串联质量法实流標定装置

熱品推薦 / Hot product

: (扣即测)夹持式超聲波流量計

超聲波流量計采用新型外夹设计，可在不接触测量介质的情况下获得流量。由于夹持式流量计的优点，无需切断管道或长时间停止设备，节省了时间成本和人工成本。超聲波流量計安裝和操作简单、快捷，可以实现流量和能量的监测。

: 双声道超聲波流量計

QTLS系列多声道超聲波流量計采用美国PhoTime技术的双道超声波流量测量产品克服了单声道超聲波流量計不适应流场变化精度不高流量不稳定的缺点，测量原理仍然基于延时法测量由于使用两个声道的优化设计，此款超聲波流量計很大程度上克服了紊流随机性对测量的影响，大幅度提高了对不同工况测量的适应性和测量精度，使用超聲波流量計测量小流量更有保证。可以作为定量控制的计量标准。

: 便携式超聲波流量計

QTDS超聲波流量計是一种非接触式仪表，它既可以测量大管径的介质流量也可以用于不易接触和观察的介质的测量。具有操作简单、测量精度高、一致性好、可在线打印、电池供电时间长等特点。几乎不受被测介质的各种参数的干扰，尤其可以解决其它仪表不能的强腐蚀性、非导电性、放射性及易燃易爆介质的流量测量问题。

: 手持式超聲波流量計

手持式超聲波流量計小巧、轻便，可随时随地进行流量测量，可充电电池及通用型电源的设计使您摆脱了电源限制。它采用了时差式原理和先进的数字相关技术以及智能自适应声波技术，使它的测量稳定性更加突出。同时它采用了声聚焦专有技术，使它在连续测量时的信号接收与品质上得到显著增强。

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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. Some propositions, he tells us, are necessarily true, others are only generally true; and it is the exceptions to the latter which constitute accident; as, for instance, when a cold day happens to come in the middle341 of summer. So also a man is necessarily an animal, but only exceptionally white. Such distinctions are not uninteresting, for they prove with what difficulties the idea of invariable sequence had to contend before even the highest intellects could grasp it. There was a constant liability to confound the order of succession with the order of co-existence, the order of our sensations with the order of objective existence, and the subjection of human actions to any fixed order, with the impossibility of deliberation and choice. 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