- 產品名稱：射頻導納液位控制器
- 產品型號：RD-SPL-L型系列
- 產品銘牌：連儀
- 生產廠商：上海連儀儀器儀表廠
- 銷售單位：連儀
- 所屬類別：生產廠家 > 上海連儀儀器儀表廠 > 產品目錄 > 產品展示 > 浮球液位控制器 >
-
RD-SPL-L型系列射頻導納液位控制器
產品簡介：
射頻導納物位開關是目前******物位控制器跨世紀的前衛替代產品，適用于測量液體、固體的位置高度,它提供DPDT的接點輸出,并且不受物料附著與探棒的影響。此產品采用適當頻率的射頻信號，同時對電容、電阻、電感進行檢測，消除了采用電容式技術而無法避免的虛物位等誤差，且有多種不同形式。可適用于高溫振動、攪拌、或狹小的空間場所的測量。導納式物位開關為了克服附著物的影響，特別于主電極與接地電極間多增加了一保護電極，以確保信號準位的正確。這種特殊電極構造特別適用于各種不同物料的偵測，并且不受物料附著的影響。探棒常會遇到有物料附著于其上情形，并在三個電極間形成電容與電阻，因主電極與保護電極間的電位及波形一樣，所以不會有電流通過兩電極的介質，導納式物位開關利用以上的原理，于主電極與接地電極間置一保護電極，以阻擋射頻電流經由主電極與接地電極間的介質而到達桶壁。保護電極與接地電極間雖然會有少量的射頻電流通過，但電路并不會偵測此一電流值。由于保護電極的作用，只有介于主電極與桶壁間所通過的射頻電流變化會被電路所偵測，因此當探棒接觸到物料時，會產生一準確的信號準位，該信號準位的大小與介電系數成正比，但與電阻值成反比，此信號很容易被電路偵測出來，并輸出一控制信號。
RD-SPL-L型系(xi)列射頻導(dao)納液位控制器
產(chan)品簡介：
射頻導納物(wu)(wu)位開關(guan)是目前******物(wu)(wu)位控(kong)制器跨世(shi)紀的(de)(de)(de)(de)前衛替代產品(pin)，適(shi)用(yong)于測(ce)(ce)(ce)量液體(ti)、固體(ti)的(de)(de)(de)(de)位置高度,它提供(gong)DPDT的(de)(de)(de)(de)接點輸出(chu),并(bing)(bing)且(qie)不受物(wu)(wu)料(liao)附(fu)著(zhu)與(yu)探棒(bang)的(de)(de)(de)(de)影(ying)響(xiang)。此(ci)產品(pin)采(cai)用(yong)適(shi)當(dang)頻率的(de)(de)(de)(de)射頻信號(hao)(hao)(hao)，同(tong)時對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感進行(xing)檢測(ce)(ce)(ce)，消除(chu)了采(cai)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容式(shi)(shi)技(ji)術而(er)無法避免的(de)(de)(de)(de)虛物(wu)(wu)位等(deng)誤差(cha)，且(qie)有(you)多種(zhong)(zhong)不同(tong)形式(shi)(shi)。可適(shi)用(yong)于高溫振動(dong)、攪拌、或狹小的(de)(de)(de)(de)空(kong)間(jian)(jian)場所(suo)的(de)(de)(de)(de)測(ce)(ce)(ce)量。導納式(shi)(shi)物(wu)(wu)位開關(guan)為了克服附(fu)著(zhu)物(wu)(wu)的(de)(de)(de)(de)影(ying)響(xiang)，特(te)別于主(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)與(yu)接地電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)間(jian)(jian)多增加了一(yi)(yi)保(bao)護(hu)(hu)(hu)(hu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)，以(yi)確保(bao)信號(hao)(hao)(hao)準(zhun)位的(de)(de)(de)(de)正確。這種(zhong)(zhong)特(te)殊電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)構(gou)造特(te)別適(shi)用(yong)于各種(zhong)(zhong)不同(tong)物(wu)(wu)料(liao)的(de)(de)(de)(de)偵測(ce)(ce)(ce)，并(bing)(bing)且(qie)不受物(wu)(wu)料(liao)附(fu)著(zhu)的(de)(de)(de)(de)影(ying)響(xiang)。探棒(bang)常會(hui)(hui)遇到(dao)有(you)物(wu)(wu)料(liao)附(fu)著(zhu)于其(qi)上(shang)情形，并(bing)(bing)在三個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)間(jian)(jian)形成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)，因主(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)與(yu)保(bao)護(hu)(hu)(hu)(hu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)間(jian)(jian)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位及波形一(yi)(yi)樣，所(suo)以(yi)不會(hui)(hui)有(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流通(tong)過兩電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)的(de)(de)(de)(de)介(jie)(jie)質，導納式(shi)(shi)物(wu)(wu)位開關(guan)利用(yong)以(yi)上(shang)的(de)(de)(de)(de)原理(li)，于主(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)與(yu)接地電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)間(jian)(jian)置一(yi)(yi)保(bao)護(hu)(hu)(hu)(hu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)，以(yi)阻(zu)(zu)擋射頻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流經由(you)主(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)與(yu)接地電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)間(jian)(jian)的(de)(de)(de)(de)介(jie)(jie)質而(er)到(dao)達桶(tong)壁(bi)。保(bao)護(hu)(hu)(hu)(hu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)與(yu)接地電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)間(jian)(jian)雖(sui)然會(hui)(hui)有(you)少(shao)量的(de)(de)(de)(de)射頻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流通(tong)過，但電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)并(bing)(bing)不會(hui)(hui)偵測(ce)(ce)(ce)此(ci)一(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流值(zhi)。由(you)于保(bao)護(hu)(hu)(hu)(hu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)的(de)(de)(de)(de)作用(yong)，只有(you)介(jie)(jie)于主(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)與(yu)桶(tong)壁(bi)間(jian)(jian)所(suo)通(tong)過的(de)(de)(de)(de)射頻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流變(bian)化(hua)會(hui)(hui)被電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)所(suo)偵測(ce)(ce)(ce)，因此(ci)當(dang)探棒(bang)接觸到(dao)物(wu)(wu)料(liao)時，會(hui)(hui)產生一(yi)(yi)準(zhun)確的(de)(de)(de)(de)信號(hao)(hao)(hao)準(zhun)位，該信號(hao)(hao)(hao)準(zhun)位的(de)(de)(de)(de)大小與(yu)介(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)系數成(cheng)正比，但與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值(zhi)成(cheng)反比，此(ci)信號(hao)(hao)(hao)很(hen)容易被電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)偵測(ce)(ce)(ce)出(chu)來，并(bing)(bing)輸出(chu)一(yi)(yi)控(kong)制信號(hao)(hao)(hao)。
特 點(dian)：
通用性強：廣泛應用于各種場合，飛灰、顆粒、粉體、液體，粘稠、導電、不導電的物料均可；
抗粘附性：******的電路設計可以使測量電路對探頭上堆積的物料忽略不計并自動校正；
分離式探頭：探頭與控制器部分可分離，無電纜連接，安裝拆除方便，且不影響現場工作；
功能強大：輸出觸點容量大，并有狀態指示燈顯示工作狀態，0~30秒延時可消除物料波動的影響；
斷電保護：常開或常閉(可現場切換)；
技術參數：
1.電源 220VAC/110VAC/24VAC/24VDC
2.功率 3W
3.繼電器輸出 5A/240VAC,兩組常開、常閉觸點
4.環境溫度 -40~80℃
5.延時時間 0~30秒可調
6.靈敏度 0.3pf~750pf
7.探頭安裝螺紋 1″NPT或法蘭安裝(特殊規格可訂制)；
8.探頭材質 SUS304/SUS316、Teflon
9.探頭工作溫度 -180~250℃
10、防護等級：IP65
11、斷電保護：采用高低模式(shi)，現(xian)場可(ke)調(diao)
