How is the tank water level controlled?舞飛 How to choose the rig光民ht sensor?

Water tanks are daily nec劇樂essities for life and 暗但production. Water tanks are div知對ided into five types acc討從ording to differ為離ent functions: domestic water t看知anks, fire water tanks, production w冷刀ater tanks, human waterproo費歌f tanks, and hous北刀ehold water towers. 樹門While water tanks bring benefits to麗能 people's life a舊輛nd production, they a是關lso have the following problems土雪:

1. The water tank is out of wate理路r, which was disco那學vered only after 畫一use.

2. Because there is n光錯o water, the water pump runs dry, c風校ausing it to bu做女rn out.

3. When it is found th亮河at the container has overf暗看lowed with wate去土r, the water is still 校他pumping

So how is the water影現 level in the water tank cont多日rolled? How to 務飛choose the right sensor? This a她校rticle uses the editor紅和 of this article to introd要喝uce an automatic controller for放拍 the water leve醫對l of the water ta要弟nk, which can achi技錢eve the following functions: when th長兵e water level i黑黃n the water tank is lower tha舊笑n the predetermined water lev區呢el, the water pump will be 到錢automatically started家刀 to pump water; and wh筆議en the water level in the wa嗎南ter tank reaches the p行吧redetermined high water 你計level , so that the water pu地林mp stops pumping water, 費舞and there is always 聽爸a certain amoun店民t of water in the water tank照山, which will neither dry nor overflow, 們務which is very practical a短能nd convenient.

Everyone knows that there are two wa化討ys to detect the water妹呢 level of the water tank: manual 亮花inspection, and the 行明water level dete嗎從ction function re雜笑alized by electronic sensors . Manual inspection has the disadvant我有ages of inaccurate positioning吧呢, long time-consu她街ming, and a lot of energy. Theref報開ore, many water tank麗子 water level controls are usually so遠木lved by sensors .

The water level sensor is睡匠 a sensor commonly used紙做 to detect liquid level and achieve 著日liquid level contr線飛ol functions. It這看 can realize water shortage pr技睡otection, water-上朋free alarm, overflow prevention funct兵下ion, automatic water additio體男n and other functions. Howe在子ver, there are many types of 呢玩water level sensors. What water leve腦從l sensors are currently us通車ed in machinery and equipm務問ent? Such as float wa老關ter level sensor, photoelectric, ca醫民pacitive and other water務日 level sensors. Wha件師t are their advan門事tages?

1. The capacitive water level sens海民or is cheap, small in s北上ize, and does not directly co黑路ntact the liquid, bu裡黃t is installed on t森少he outer wall of the water ta要笑nk for use. It can detect all k生女inds of liquids with sundries and訊白 corrosive liquid短可s.

2. The float-type liquid level sens但購or is simple to operate. The advantage 麗坐is that it is cheap. The di些兵sadvantage is that the liquid level c土東ontrol accuracy中為 is low and can usually only be contr吃黃olled within ±3m坐哥m or even higher.現到 The float type water level sensor c白吧an only be insta樂妹lled up or down, whi一公ch will limit the p錯金roduct requirements. Moreo可醫ver, the float wat錯笑er level sensor will produce s問村cale after being used for a period 是區of time. The scale will ca我知use the float to gain wei光快ght and affect the liquid leve紅計l detection accuracy, and it does no又冷t meet food hyg錢來iene certification standar技業ds.

3. The photoelectric water level sen影可sor can be installed upwar說麗d, downward, sideward or diagonally. T員藍he waterproof level reaches兵北 IP 64. The liqu就麗id level detection accuracy i是內s high and can be controlled ±0.5m生學m. And small size, long life笑不, simple installation process民林, strong stability腦老, high reliability.裡工 The application environment is 男她wide, and it is less affected by the公很 corrosion, sediment and floating ob讀秒jects in the li務湖quid. The area in contact with liquid紙唱 is small, making it easy 懂問to clean and more hygienic.

4. Ultrasonic water level sensor: The關錯 ultrasonic water leve窗金l sensor is light in weight, high in 費自detection accuracy, non-contact de可做tection, and more hygie商校nic. It has the charact也為eristics of safety, long life an理喝d high reliability. It has a wide rang美街e of applicable environments廠我 and various installation metho你快ds. Ultrasonic water level sens開書ors tend to have bl機作ind spots, in which liquids or obje新身cts cannot be detect地村ed. It is not suitable for ultrasoni這但c water level s錯水ensors when there are no obstacl話風es under the ultras業計onic water level sen城舞sor, dust, water mist公筆, liquid that easily prod習是uces a lot of foam, or th友吧e liquid is easily volatile. It音話 is easy to cause m慢不easurement error, signal loss, accura木計cy drop and so on. Ultrasonic senso有能rs are more expensive.

5. Electrode type liquid le志村vel sensor: The electrode type water le國風vel sensor has a simple str南街ucture and low price. The electrode typ海關e sensor directly uses the r日日esistance of water to detect the wa匠理ter level. This type of s唱錯ensor generally uses st歌開ainless metal or conductive行讀 silicone rubber as th靜愛e conductor. Its packagi對關ng process is excellent. De為窗fects are directly related 文樂to the quality of the product.開木 The electrode 也場type water level sensor w吧輛ill produce electrolysis a火資fter a long time of u見妹se, and the electrolytic substances訊文 produced are toxic an拍樂d will affect human health.

The above sensors h讀街ave their own advantages, so 村做what sensor is g也呢enerally used for tank如白 water level control? Generally, a water level sensor is used for detection. Th視靜e water level sensor can detect又謝 the change of the wat對唱er level very well and send out a signa醫雪l to give a prompt. W見雨ith the control panel, it can a校分lso realize the近農 automatic water filling functi是輛on. Therefore, 去唱the water level sensor is愛身 usually the most suitable for通讀 selecting the photo區費electric liquid level switch f看視or water level control.

The photoelectric liquid level 樹到switch uses the principle of ref農海raction and reflection of light t什知o allow light to reflect or refract影藍 at the interface between two different新店 media. When the measured liquid 做月is at a high level, the measur技務ed liquid and the switch form an int短理erface. When the measur動睡ed liquid is at 我鐵a low level, the離農 air and the switch form anot筆音her interface. Because the refract匠又ive index of the switc匠裡h plastic hemisphere and些為 the air are ve討匠ry different. The diffe見分rence makes the intensity of報見 emitted light rece服那ived by the receiving c樹快rystal inside the switch 花議different at the two interfaces, t喝媽hat is, correspond少線ing to two different switch state暗書s.

The liquid level sensor子匠 has the advantages of fast金他 response speed and liq林匠uid level control accuracy. The 裡呢photoelectric liquid level s藍歌ensor is a liquid level s行劇ensor with high reliabili水拿ty. The photoelectric liquid level s唱票ensor can detect and has the c朋湖haracteristics of multi-directional i村拍nstallation, so it can work n家你ormally if it is installed u看金p, down, side, or obliquely聽都. It is small i自著n size and takes up little space. 作輛Compared with manual v線車iewing, the photoelectr場制ic liquid level s輛自ensor is used to detect the明站 liquid level, but i錯相ts fast response speed, liqui錢就d level control accu有刀racy and mainte爸北nance-free charact窗道eristics can obviously make the us熱算er experience better. good雜吃. Therefore, it is very appropriate t說物o use a photoelectric liquid level媽兵 sensor for the water lev南銀el detection of the water 這影tank.

The above is the intro生近duction of some principle了去s on how to control the wate大街r level of the water 下兵tank. For more indus資要try information, please業話 pay attention t區一o the official website 藍筆of Logic Technology.