電纜識別儀廠家是用于將某一特(te)定電(dian)纜從(cong)一束電(dian)纜中識別出(chu)來的儀器。它是一小(xiao)型化(hua)手提式，緊湊型儀器，裝在鋁合(he)金(jin)箱(xiang)內，由(you)一個(ge)信號發生器，一個(ge)帶(dai)傳感器的接(jie)收(shou)機(ji)及連線(xian)構成(cheng)。

電纜識別儀廠家簡介：為(wei)了可靠準(zhun)確地(di)識(shi)別電纜(lan)，需要給被識(shi)別電纜(lan)加一(yi)特殊的信(xin)號(hao)，該(gai)信(xin)號(hao)要被接(jie)收機接(jie)收，利用這一(yi)特性便(bian)能識(shi)別出要找的電纜(lan)。

工作原理：

發(fa)生(sheng)器將(jiang)周期性的(de)(de)(de)單極(ji)(ji)性電(dian)(dian)(dian)壓(ya)脈沖(chong)饋(kui)入要識(shi)別的(de)(de)(de)電(dian)(dian)(dian)纜(lan)中，該電(dian)(dian)(dian)纜(lan)需要在遠端(duan)接地，以(yi)保證有足(zu)夠大的(de)(de)(de)電(dian)(dian)(dian)流(liu)(liu)流(liu)(liu)過電(dian)(dian)(dian)纜(lan)。該系統要設(she)計成返(fan)(fan)回(hui)電(dian)(dian)(dian)流(liu)(liu)不要從(cong)同一(yi)電(dian)(dian)(dian)纜(lan)中返(fan)(fan)回(hui)，能做到這(zhe)一(yi)點(dian)，饋(kui)入電(dian)(dian)(dian)纜(lan)中的(de)(de)(de)脈沖(chong)電(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)方向可做為一(yi)明顯的(de)(de)(de)識(shi)別標(biao)準，流(liu)(liu)出去(qu)(qu)(qu)的(de)(de)(de)電(dian)(dian)(dian)流(liu)(liu)僅從(cong)這(zhe)一(yi)根(gen)電(dian)(dian)(dian)纜(lan)通過，所有其它鄰近電(dian)(dian)(dian)纜(lan)中流(liu)(liu)過的(de)(de)(de)都是返(fan)(fan)回(hui)電(dian)(dian)(dian)流(liu)(liu)，但(dan)它們(men)的(de)(de)(de)極(ji)(ji)性相反。除了電(dian)(dian)(dian)流(liu)(liu)方向這(zhe)一(yi)實(shi)際差異外，電(dian)(dian)(dian)流(liu)(liu)幅度也(ye)是一(yi)識(shi)別特征，流(liu)(liu)出去(qu)(qu)(qu)的(de)(de)(de)電(dian)(dian)(dian)流(liu)(liu)僅通過一(yi)根(gen)電(dian)(dian)(dian)纜(lan)、而返(fan)(fan)回(hui)電(dian)(dian)(dian)流(liu)(liu)可通過幾根(gen)電(dian)(dian)(dian)纜(lan)、這(zhe)意味著(zhu)流(liu)(liu)出去(qu)(qu)(qu)的(de)(de)(de)電(dian)(dian)(dian)流(liu)(liu)比流(liu)(liu)過其它電(dian)(dian)(dian)纜(lan)的(de)(de)(de)返(fan)(fan)回(hui)電(dian)(dian)(dian)流(liu)(liu)大。

　　接(jie)收機的任務是(shi)探(tan)測流(liu)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)方(fang)向(xiang)以及(ji)它的大小(xiao)。為達到這一(yi)目的，電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)傳(chuan)感(gan)器被用作(zuo)傳(chuan)感(gan)器，它帶有(you)(you)(you)一(yi)放大器并串(chuan)聯在電(dian)(dian)(dian)(dian)(dian)(dian)路中(zhong)(zhong)(zhong)，傳(chuan)感(gan)器鉗(qian)住被測電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)，電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)流(liu)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)產生的磁場在傳(chuan)感(gan)器的線圈(quan)中(zhong)(zhong)(zhong)感(gan)應(ying)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)壓，該電(dian)(dian)(dian)(dian)(dian)(dian)壓極性由電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)方(fang)向(xiang)和傳(chuan)感(gan)器線圈(quan)的方(fang)向(xiang)決定。為了(le)得到明顯有(you)(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)方(fang)向(xiang)的電(dian)(dian)(dian)(dian)(dian)(dian)壓極性，對一(yi)束電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)中(zhong)(zhong)(zhong)所(suo)(suo)有(you)(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)進(jin)行測試都(dou)采取相同正確的方(fang)向(xiang)。傳(chuan)感(gan)器線圈(quan)中(zhong)(zhong)(zhong)感(gan)應(ying)的電(dian)(dian)(dian)(dian)(dian)(dian)壓在表(biao)頭中(zhong)(zhong)(zhong)顯示出(chu)來，如果(guo)傳(chuan)感(gan)器按上(shang)述方(fang)式連接(jie)，指(zhi)針(zhen)擺動(dong)方(fang)向(xiang)可(ke)顯示電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)方(fang)向(xiang)，即只(zhi)(zhi)有(you)(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)流(liu)出(chu)的這根電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)指(zhi)針(zhen)向(xiang)一(yi)邊偏，這根就是(shi)要找的電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)。所(suo)(suo)有(you)(you)(you)其(qi)它電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)只(zhi)(zhi)流(liu)過(guo)(guo)返回電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)，指(zhi)針(zhen)向(xiang)另一(yi)邊偏、或無脈動(dong)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)，指(zhi)針(zhen)不(bu)偏轉。接(jie)收機上(shang)的放大調節器可(ke)調整信號強度。

二、功能介紹

識別(bie)儀主機各部分功能如下：

1.　電源(yuan)開關：控制整機電源(yuan)通斷。

2.　電(dian)源(yuan)輸入插座：用儀器(qi)所配電(dian)源(yuan)線，輸入50HZ、220V交流電(dian)源(yuan)。儀器(qi)使用時，應獨立使用三孔電(dian)源(yuan)插座，插座接地(di)線就近直接接地(di)。

3.　保險座(zuo)：儀器(qi)使用10A保險芯，損(sun)壞時應(ying)換同規格保險芯。

4.　黑接(jie)線(xian)柱：測試(shi)時(shi)，用(yong)配(pei)套黑色測試(shi)線(xian)（Ф4插頭）插入此插孔，另一(yi)端(duan)測試(shi)夾接(jie)系統地。

5.　紅(hong)接線柱：測(ce)試(shi)時，用(yong)配套紅(hong)色測(ce)試(shi)線（Ф4插頭）插入此插孔(kong)，另(ling)一端測(ce)試(shi)夾接被測(ce)電(dian)纜芯線。

6.　表頭：指示(shi)輸出(chu)電流大小(xiao)。7.輸出(chu)調節；調節輸出(chu)電流大小(xiao)。

7、輸(shu)(shu)出調節旋鈕(niu)：用(yong)于輸(shu)(shu)出幅度大小的調節。以不滿刻(ke)度打(da)表為原則。

接收機各部分功能(neng)如下：

1. 靈敏度調(diao)節：順時針(zhen)旋轉，接收機電表指示值(zhi)增(zeng)大，逆時針(zhen)旋轉，指示值(zhi)變小。

2. 表頭：指示輸入(ru)信號幅度(du)大小與(yu)極性。

三、工作方法

帶(dai)電(dian)電(dian)纜設備儀信號發生器由(you)(you)交流(liu)(liu)電(dian)源(yuan)供電(dian)，它對已(yi)斷電(dian)的、要識別的電(dian)纜加上固(gu)定(ding)周期單極性的直流(liu)(liu)脈(mo)沖。工(gong)作時，將(jiang)發生器輸(shu)出線(xian)連在電(dian)纜芯線(xian)和接地(di)點(dian)或地(di)釘上，該電(dian)纜線(xian)鎧裝與(yu)大(da)地(di)斷開，芯線(xian)在遠端與(yu)接地(di)點(dian)或地(di)釘相連，該回路(lu)(lu)可傳(chuan)導脈(mo)沖電(dian)流(liu)(liu)，它可由(you)(you)識別儀上的表(biao)頭讀出，電(dian)流(liu)(liu)大(da)小由(you)(you)環(huan)路(lu)(lu)電(dian)阻決定(ding)，環(huan)路(lu)(lu)電(dian)阻應盡可能小。

為(wei)(wei)保證(zheng)環路(lu)電阻的(de)阻抗盡可能(neng)低，地(di)釘與地(di)之間要保證(zheng)接(jie)觸良(liang)好(hao)（將地(di)釘附近的(de)地(di)方(fang)弄濕(shi)）。發(fa)射機與電纜連接(jie)正(zheng)確(que)但無輸出，說明(ming)環路(lu)電阻太大或未構成(cheng)測試(shi)回路(lu)，應檢查終端接(jie)地(di)。【將發(fa)射機兩輸出夾短接(jie)，表頭有(you)輸出，證(zheng)明(ming)儀器(qi)完好(hao)】警(jing)告：為(wei)(wei)確(que)保人(ren)身安(an)全(quan)，對已確(que)定(ding)的(de)電纜，在維修開鋸(ju)前，一定(ding)要進(jin)行(xing)扎釘試(shi)驗，可選DS1102型電纜安(an)全(quan)刺扎器(qi)。

四、配套

帶電電纜設備儀主機　　　1臺　　　　

電源線　　　1條

帶(dai)電電纜設備儀接收機　　1臺　　　

說明書　　　1本

合格(ge)證(zheng)　　　　　　　　　　1份(fen)　　　　

測試線　　　2條

保修(xiu)卡　　　　　　　　　　1份

注：1.測試時電流鉗(qian)上的(de)紅色箭頭標(biao)記(ji)指向電纜遠端(duan)！

2.發射機(ji)輸出電(dian)流調節大(da)也超不過(guo)5A時，應檢查接地電(dian)阻，也可另打地釬。【對端芯(xin)線(xian)接地后，在首端測量芯(xin)地間電(dian)阻越小，輸出電(dian)流越大(da)】

3.發射機(ji)正(zheng)常(chang)工作電流(liu)應調(diao)到大于(yu)10A小于(yu)30A[5A可(ke)工作]，電流(liu)大時接收(shou)機(ji)指示明顯(xian)。發射機(ji)輸出正(zheng)常(chang)但接收(shou)機(ji)無指示，大多是卡(ka)鉗口未閉合(he)，請(qing)張開鉗口，快(kuai)速讓其(qi)卡(ka)、卡(ka)閉合(he)幾次就可(ke)解決問題(ti)。