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帶遠傳磁翻板液位計
帶遠傳磁翻板液位計工作原理

以側(cè)裝式磁性翻板液位計為例，由液體計腔體、柱狀浮子、磁性翻板以及用戶選用的變送器、報警開關(guān)組成。液位計腔體可以視為壓力容器的一部分，與壓力容器通過上下側(cè)法蘭相連接，這樣液位計腔體內(nèi)的液位變化與壓力容器內(nèi)實際液位的變化是相一致的。液位信號通過液位計腔體內(nèi)的柱狀浮子中磁鐵產(chǎn)生的磁場傳遞出去。變送器或報警開關(guān)是通過浮子磁鐵產(chǎn)生的磁場，采樣實際液位的變化，轉(zhuǎn)換成標(biāo)準(zhǔn)4~20mA電流輸出信號或繼電器輸出信號。變送器主要由電阻、干簧管、變送模塊組成。當(dāng)液位帶動浮子上下變化，浮子磁鐵產(chǎn)生的磁場就會引起均勻排列中相應(yīng)位置干簧管的吸合，從而決定串聯(lián)電阻的回路阻值的大小，并通過變送模塊的轉(zhuǎn)換，輸出4~20mA電流信號。報警開關(guān)主要由干簧管、磁鐵組成。當(dāng)液位帶動浮子上下變化，浮子磁鐵產(chǎn)生的磁場就會引起相應(yīng)位置干簧管的吸合或釋放，從而輸出繼電器信號。報警開關(guān)的磁鐵輸出的繼電器信號具有保持功能。磁性翻板是顯示液位的，其中的紅白翻珠均勻排列于鋁制的卡槽中。當(dāng)液位上升時，紅白翻珠內(nèi)的磁鐵受到浮子內(nèi)的磁鐵的影響，帶動翻珠由下而上逐一由白色翻紅色；同樣當(dāng)液位下降時，翻珠由上而下逐一由紅色翻回白色，從而無需任何電源就可顯示出壓力容器內(nèi)液位的變化。

帶遠傳磁翻板液位計儀表特點

1. 結(jié)構(gòu)簡單，可直觀顯示液位高低。

2. 可靠耐用，無需專門維護。

3. 顯示單元和報警開關(guān)的工作無需電源。

4. 不受被測液體溫度高、易流動、易燃燒、有毒

性等因素的影響。

5. 可用于高溫、高壓的環(huán)境。

6. 耐腐蝕性強，適用于大多數(shù)腐蝕性液體。

7. 適用于大多數(shù)低密度液體。
帶遠傳磁翻板液位計技術(shù)參數(shù)

測量范圍：300～10000mm

準(zhǔn)確度：±10mm

工作壓力：標(biāo)準(zhǔn)型≤1.6MPa

高壓型≤16.0MPa（根據(jù)溫度變化確定）

UPVC≤0.6MPa

介質(zhì)密度：≥0.45g/cm3

介質(zhì)溫度：標(biāo)準(zhǔn)型：-20℃～150℃

高溫型：≤350℃（根據(jù)壓力變化確定）

PP材質(zhì)與不銹鋼襯氟材質(zhì)請咨詢與我司聯(lián)系

帶遠傳磁翻板液位計安裝說明：

1. 開箱檢查產(chǎn)品的型號是否與選購的型號一致，法蘭尺寸及中心距是否與現(xiàn)場尺寸一致。

2. 浮子一般放置在液位計腔體一側(cè)。

3. 安裝前必須清潔管道，確保管道內(nèi)無雜物堵塞。

4. 安裝前先用浮子沿翻板自上而下引導(dǎo)一次，確保此時磁性翻板上的翻珠全部翻為白色。

5. 液位計必須垂直安裝，傾斜度應(yīng)小于5°。

6. 檢查安裝完畢后，打開液位計底部法蘭，將浮子放入液位計腔體中。注意浮子上標(biāo)有向上箭頭（或以有磁鋼的一端為上部）。

7. 液位計在投運之前，先緩慢打開進液閥，使液體緩慢進入液位計腔體內(nèi)，以免浮子在液位計腔體內(nèi)隨液位急速上沖，造成翻珠隨意翻轉(zhuǎn)、顯示混亂。

Working Principle

serial magnetic liquid level controller is consisted of chamber, magnetic float, magnetic flag,and the transducer, alarm switch that the user chose.The chamber can serve as a part of vessel; it can be connected to the vessel by the upper flange and the down flange. By this way, the liquid level within the chamber is the same as that in the vessel. The signal of level can be showed by the change of flag's status caused by the magnetic float within the chamber.

The transducer or alarm switch can function through the magnetic field caused by the magnetic float when the liquid level changes, they can produce a 4-20mA or relay output signal.

A transducer is consisted of resistance, reed switch and transducer module. The magnetic float’s position changes with the liquid level, which will make the reed switch change its status accordingly, and this change decides the resistance of the current circuit. When the transducer module gets the change of resistance, it will turn it into a 4-20mA current output signal.

The alarm switch is consisted of reed switch and magnet. The magnetic float’s position changes with the liquid level, which will make the reed switch change its status accordingly, and this change will

generate a relay signal. The relay signal generated by alarm switch can be hold.

The magnetic flag show the actual Iiquid level.When the float goes up with liquid level, the flag. will change from white to red; when the liquid level goes down, the flag will change to white. With no need of power supply, the magnetic liquid controller can show the level change of liquid.

Advantages

1. Simple structure, the user can see the liquid leveldirectly.

2. Reliable design, free of maintenance.

3. Work with no need of power supply.

4. No effect from the high temperature, flowing,flammable, and poisonous of liquid.

5. Can be used for the appliction of high temperature and high pressure.

6. Anticorrosive, can be used to measure most caustic liquid.

7. Suitable for measuring level of liquid with low specific gravity.
　
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