NORGREN氣動(dòng)壓力開(kāi)關(guān),諾冠壓力開(kāi)關(guān),英國(guó)NORGREN壓力開(kāi)關(guān)電子式壓力開(kāi)關(guān)另外一種是市場(chǎng)上這幾年比擬盛行的是電子式壓力開(kāi)關(guān),用來(lái)替代電接點(diǎn)壓力表和運(yùn)用在工控控制請(qǐng)求比擬高的零碎上。這種壓力開(kāi)關(guān)內(nèi)置精細(xì)壓力傳感器,經(jīng)過(guò)高精度儀表縮小器縮小壓力信號(hào),經(jīng)過(guò)高速M(fèi)CU采集并處置數(shù)據(jù),普通都是采用4位LED實(shí)時(shí)數(shù)顯壓力,繼電器信號(hào)輸入,上限控制點(diǎn)能夠自在設(shè)定,遲滯小,抗振動(dòng),呼應(yīng)快,穩(wěn)固牢靠,精度高(精度普通在±0.5%F.S,高則達(dá)±0.2%F.S),應(yīng)用回差設(shè)置能夠有用維護(hù)壓力動(dòng)搖帶來(lái)的重復(fù)舉措,維護(hù)控制設(shè)備,是檢測(cè)壓力、液位信號(hào),完成壓力、液位監(jiān)測(cè)和控制的高精度設(shè)備。
英國(guó)NORGREN壓力開(kāi)關(guān)特點(diǎn)是:電子顯示屏直觀,精度高,運(yùn)用壽命長(zhǎng),經(jīng)過(guò)顯示屏設(shè)置控制點(diǎn)方便,但是價(jià)錢較高,需求供電。
詳細(xì)說(shuō)明
1. 目前電子式壓力開(kāi)關(guān)普遍運(yùn)用在化工、機(jī)械、水力、電力、環(huán)保等測(cè)量氣體、液體壓力的主動(dòng)化零碎中。
2. 由于調(diào)理方便靈敏,裝置容易,能夠替代大局部運(yùn)用機(jī)械壓力開(kāi)關(guān)、液位開(kāi)關(guān)、壓力繼電器、電接點(diǎn)壓力表的場(chǎng)所。
3. 壓力開(kāi)關(guān)是一種容易的壓力控制安裝,當(dāng)被測(cè)壓力到達(dá)額外值時(shí),壓力開(kāi)關(guān)可收回警報(bào)或控制信號(hào)。
4. 壓力開(kāi)關(guān)的任務(wù)原理是:當(dāng)被測(cè)壓力超越額外值時(shí),彈性元件的自在端發(fā)生位移,間接或經(jīng)歷比擬后推進(jìn)開(kāi)關(guān)元件,改動(dòng)開(kāi)關(guān)元件的通斷形態(tài),到達(dá)控制被測(cè)壓力的目的。
5. 英國(guó)NORGREN壓力開(kāi)關(guān)采用的彈性元件有單圈彈簧管、膜片、膜盒及波紋管等。
6. 開(kāi)關(guān)元件有磁性開(kāi)關(guān)、水銀開(kāi)關(guān)、微動(dòng)開(kāi)關(guān)等。
7. 壓力開(kāi)關(guān)的開(kāi)關(guān)方式有常開(kāi)式和常閉式兩種。
8. 壓力開(kāi)關(guān)的調(diào)理方式有兩位式和三位式兩種。
9. 精度:表示設(shè)備精準(zhǔn)水平的值,包括線性度、公差、遲滯、反復(fù)性等。目前長(zhǎng)野的壓力開(kāi)關(guān)zui高精度可到達(dá)±0.5%F.S,型號(hào)為CB33。
10. zui大壓力(Max.P):壓力領(lǐng)域的zui大值。
11. 滿量程(F.S):壓力領(lǐng)域zui大值和zui小值的差值。
12. 接斷差(死區(qū)):是指開(kāi)關(guān)設(shè)定舉措值和復(fù)位值的差值,例如當(dāng)設(shè)定、值為1MPa,實(shí)踐復(fù)位值為0.9MPa時(shí),接斷差為0.1MPa。
13. 作溫度:是指儀器的外部機(jī)構(gòu)、敏感元件等任務(wù)時(shí)不會(huì)出現(xiàn)連續(xù)變形的溫度領(lǐng)域。普通壓力開(kāi)關(guān)推舉任務(wù)溫度領(lǐng)域?yàn)?5~400C,若介質(zhì)溫渡過(guò)高時(shí),可思索加附件虹吸管(灌狀),到達(dá)降溫的目的。
14. S.P.D.T(單刀雙擲):由一個(gè)常開(kāi)、一個(gè)常閉觸點(diǎn)和一個(gè)公共端組成。
15. D.P.D.T(雙刀雙擲):由一個(gè)對(duì)稱的左、右公共端,兩組常開(kāi)、常閉端子組成。
16. 下限一接點(diǎn)(常開(kāi)):壓力上升到設(shè)定值時(shí),接點(diǎn)舉措,回路導(dǎo)通。
17. 上限一接點(diǎn)(常閉):亞力下降到設(shè)定值時(shí),接點(diǎn)舉措,回路導(dǎo)通。
18. 上上限兩接點(diǎn)HL:是下限式和上限式的配合,分為兩接點(diǎn)獨(dú)立舉措(雙設(shè)定、雙回路)和兩接點(diǎn)一同舉措(單設(shè)定、雙回路)兩品種型。
19. 下限2接點(diǎn):兼并了兩個(gè)下限方式,分為分為兩接點(diǎn)獨(dú)立舉措(雙設(shè)定、雙回路)和兩接點(diǎn)一同舉措(單設(shè)定、雙回路)兩品種型。
20. 上限2接點(diǎn):兼并了兩個(gè)上限方式,分為兩接點(diǎn)獨(dú)立舉措(雙設(shè)定、雙回路)和兩接點(diǎn)一同舉措(單設(shè)定,雙回路)兩品種型。
21. 耐壓:壓力開(kāi)關(guān)堅(jiān)持其正常功能所能接受的zui大壓力。但是當(dāng)壓力開(kāi)關(guān)用于過(guò)壓場(chǎng)所時(shí),敏感元件將會(huì)發(fā)生連續(xù)形變,這時(shí)壓力設(shè)定值將變化,壓力開(kāi)關(guān)將不能發(fā)揚(yáng)其正常功能乃至能夠損壞。
22. IP(防護(hù)等級(jí)):是由電工協(xié)會(huì)(IEC)所起草,關(guān)于燈具防塵防潮特性的規(guī)范。
23. 英國(guó)NORGREN壓力開(kāi)關(guān),為純機(jī)械形變招致微動(dòng)開(kāi)關(guān)舉措。當(dāng)壓力增長(zhǎng)時(shí),作用在不同的傳感壓力元器件(膜片、波紋管、活塞)發(fā)生形變,將向上挪動(dòng),經(jīng)過(guò)欄桿彈簧等機(jī)械構(gòu)造,zui后啟動(dòng)zui上端的微動(dòng)開(kāi)關(guān),使電信號(hào)輸入。壓力開(kāi)關(guān)設(shè)定方式從功效原理上又分紅陸續(xù)位移型和力均衡型
NORGREN氣動(dòng)壓力開(kāi)關(guān)
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