RF-932X2B射頻導納物位控制器

RF-932X2B射頻導納物位控制器

產品(pin)簡(jian)介(jie)

射(she)頻導(dao)納料位(wei)(wei)(wei)開(kai)關是目前(qian)國際物(wu)(wu)位(wei)(wei)(wei)控制(zhi)器跨世(shi)紀的(de)(de)前(qian)衛替代產品(pin)，適(shi)用(yong)(yong)(yong)于(yu)測量液體、固(gu)體的(de)(de)位(wei)(wei)(wei)置高度,它提供DPDT的(de)(de)接點輸出,并且(qie)不(bu)受(shou)物(wu)(wu)料附(fu)(fu)著與探(tan)棒的(de)(de)影響。此產品(pin)采用(yong)(yong)(yong)適(shi)當頻率的(de)(de)射(she)頻信(xin)號，同時對電(dian)(dian)容、電(dian)(dian)阻、電(dian)(dian)感進(jin)行檢測，消(xiao)除了(le)采用(yong)(yong)(yong)電(dian)(dian)容式技(ji)術而無法(fa)避(bi)免的(de)(de)虛物(wu)(wu)位(wei)(wei)(wei)等(deng)誤(wu)差(cha)，且(qie)有(you)多種(zhong)不(bu)同形式。可適(shi)用(yong)(yong)(yong)于(yu)高溫振動、攪拌、或狹小的(de)(de)空間場所(suo)的(de)(de)測量。導(dao)納式物(wu)(wu)位(wei)(wei)(wei)開(kai)關為了(le)克服附(fu)(fu)著物(wu)(wu)的(de)(de)影響，特(te)別(bie)于(yu)主電(dian)(dian)極(ji)(ji)與接地(di)電(dian)(dian)極(ji)(ji)間多增加了(le)一(yi)保護電(dian)(dian)極(ji)(ji)，以(yi)確保信(xin)號準(zhun)位(wei)(wei)(wei)的(de)(de)正確。這種(zhong)特(te)殊電(dian)(dian)極(ji)(ji)構造特(te)別(bie)適(shi)用(yong)(yong)(yong)于(yu)各種(zhong)不(bu)同物(wu)(wu)料的(de)(de)偵測，并且(qie)不(bu)受(shou)物(wu)(wu)料附(fu)(fu)著的(de)(de)影響。

探棒(bang)常會遇到(dao)有物料(liao)(liao)附(fu)著于(yu)(yu)(yu)其上情形(xing)，并在三個電(dian)(dian)(dian)(dian)極(ji)(ji)間形(xing)成電(dian)(dian)(dian)(dian)容(rong)與(yu)電(dian)(dian)(dian)(dian)阻(zu)，因(yin)主電(dian)(dian)(dian)(dian)極(ji)(ji)與(yu)保(bao)護(hu)電(dian)(dian)(dian)(dian)極(ji)(ji)間的(de)(de)電(dian)(dian)(dian)(dian)位(wei)(wei)及波形(xing)一樣，所(suo)以(yi)(yi)不會有電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)通(tong)過(guo)兩電(dian)(dian)(dian)(dian)極(ji)(ji)的(de)(de)介(jie)(jie)質，導納式物位(wei)(wei)開關利用以(yi)(yi)上的(de)(de)原理，于(yu)(yu)(yu)主電(dian)(dian)(dian)(dian)極(ji)(ji)與(yu)接(jie)地(di)電(dian)(dian)(dian)(dian)極(ji)(ji)間置(zhi)一保(bao)護(hu)電(dian)(dian)(dian)(dian)極(ji)(ji)，以(yi)(yi)阻(zu)擋(dang)射頻電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)經由主電(dian)(dian)(dian)(dian)極(ji)(ji)與(yu)接(jie)地(di)電(dian)(dian)(dian)(dian)極(ji)(ji)間的(de)(de)介(jie)(jie)質而到(dao)達桶壁。保(bao)護(hu)電(dian)(dian)(dian)(dian)極(ji)(ji)與(yu)接(jie)地(di)電(dian)(dian)(dian)(dian)極(ji)(ji)間雖然(ran)會有少量的(de)(de)射頻電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)通(tong)過(guo)，但電(dian)(dian)(dian)(dian)路(lu)(lu)并不會偵(zhen)測此(ci)一電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)值。由于(yu)(yu)(yu)保(bao)護(hu)電(dian)(dian)(dian)(dian)極(ji)(ji)的(de)(de)作用，只有介(jie)(jie)于(yu)(yu)(yu)主電(dian)(dian)(dian)(dian)極(ji)(ji)與(yu)桶壁間所(suo)通(tong)過(guo)的(de)(de)射頻電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)變化會被(bei)電(dian)(dian)(dian)(dian)路(lu)(lu)所(suo)偵(zhen)測，因(yin)此(ci)當探棒(bang)接(jie)觸到(dao)物料(liao)(liao)時，會產生(sheng)一準確的(de)(de)信號準位(wei)(wei)，該信號準位(wei)(wei)的(de)(de)大小與(yu)介(jie)(jie)電(dian)(dian)(dian)(dian)系數成正(zheng)比，但與(yu)電(dian)(dian)(dian)(dian)阻(zu)值成反比，此(ci)信號很容(rong)易被(bei)電(dian)(dian)(dian)(dian)路(lu)(lu)偵(zhen)測出來，并輸出一控(kong)制信號。

特點：

通用性強：應用于各種場(chang)合，飛(fei)灰(hui)、顆粒、粉(fen)體、液體，粘稠(chou)、導(dao)(dao)電、不導(dao)(dao)電的物料均(jun)可；

抗粘附性(xing)：電(dian)路(lu)設計(ji)可(ke)以使測量電(dian)路(lu)對(dui)探頭上堆積的物料忽略(lve)不計(ji)并自動校正；

分離(li)式探(tan)頭：探(tan)頭與控制器部分可分離(li)，無電纜連接，安裝(zhuang)拆除方便，且不影(ying)響現場工作(zuo)；

功(gong)能強大：輸出觸點容量(liang)大，并有狀態(tai)指示燈顯(xian)示工作(zuo)狀態(tai)，0~30秒延時(shi)可(ke)消除物(wu)料波動的影響；

斷電保護：常開或常閉(可現場切換)；

技術參數選型

技(ji)術參(can)數(shu)：

1.電源 220VAC/110VAC/24VAC/24VDC

2.功率 3W

3.繼(ji)電(dian)器輸出 5A/240VAC,兩(liang)組常(chang)開、常(chang)閉觸點(dian)

4.環境溫度(du) -40~80℃

5.延時時間 0~30秒可(ke)調

6.靈敏度 0.3pf~750pf

7.探頭安裝(zhuang)螺紋 1″NPT或法(fa)蘭安裝(zhuang)(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，現場(chang)可調(diao)