電子地(di)磅顯(xian)示器XK3190-A12E/A12+E價格

XK3190-A12+系列

產品介紹：

XK3190-A12+系列采用高(gao)精度模數(shu)轉(zhuan)換(huan)技術和特殊的軟件抗振動(dong)技術，交直流兩用，適用于電子(zi)臺秤(cheng)、電子(zi)平臺秤(cheng)等使用1～4個傳感器(qi)的靜態(tai)稱重系統。

基本功(gong)能(neng)：

高精(jing)度A/D轉(zhuan)換，可讀性達1/30000；

調(diao)用內(nei)碼顯示方便，替(ti)代感量砝碼觀察(cha)及分析(xi)允差；

特殊(shu)的軟(ruan)件技術，增強系統的抗振動能力；

零位跟(gen)蹤范圍、置零（開機/手動）范圍、可分別設(she)置；

電(dian)子(zi)地磅顯示(shi)器(qi)XK3190-A12E/A12+E價格

數字濾波的(de)速(su)度(du)、幅(fu)度(du)以(yi)及穩定(ding)的(de)時間可(ke)設(she)置(zhi)；

附帶稱(cheng)重(zhong)計數(shu)功(gong)能；（單件重(zhong)量有斷電保護）

多(duo)種背光模式(shi)可選擇；

可隨機充電；具有欠壓指示及保護裝(zhuang)置；

隨機配置6V/4AH免(mian)維護蓄電池

選配

技術(shu)參數：

A/D轉換方(fang)式:Σ-Δ轉換方(fang)式

A/D轉換速率:20次/秒

大A/D轉換數:20bit

輸入信號范圍:－10mV～15mV

輸入靈(ling)敏度:≥1μV/e

傳感器(qi)供橋電(dian)源(yuan) C5V.

電(dian)子地磅（汽(qi)車衡(heng)）一般采用橋(qiao)式QS傳(chuan)感器(qi)。一般由(you)4-8只傳(chuan)感器(qi)，到接線(xian)(xian)盒(he)，然后(hou)由(you)一條主(zhu)線(xian)(xian)接到儀表上。不同廠家的(de)(de)傳(chuan)感器(qi)，要(yao)根據說明書來接，不同廠家做出的(de)(de)傳(chuan)感器(qi)線(xian)(xian)色不同，四(si)根分(fen)別是(shi)正負激(ji)勵和正負信(xin)號(hao)。一般傳(chuan)感器(qi)線(xian)(xian)的(de)(de)顏色分(fen)為紅(hong)黑，綠(lv)白。紅(hong)黑綠(lv)白：紅(hong)白綠(lv)蘭等(deng)分(fen)標(biao)表示V+、V-、S+、S- 對應依次接到接線(xian)(xian)盒(he)上即(ji)可。要(yao)根據秤臺的(de)(de)結構，分(fen)布(bu)，依次接入接線(xian)(xian)盒(he)的(de)(de)1,2,3,4,5,6,7，8 并標(biao)號(hao)。這(zhe)樣(yang)方便檢(jian)修(xiu)。

稱重傳感器的(de)(de)(de)(de)出線(xian)(xian)(xian)方式(shi)有4線(xian)(xian)(xian)和6線(xian)(xian)(xian)兩(liang)種(zhong)，模塊或稱重變(bian)送器的(de)(de)(de)(de)接(jie)線(xian)(xian)(xian)也有4線(xian)(xian)(xian)和6線(xian)(xian)(xian)兩(liang)種(zhong)，要(yao)接(jie)4線(xian)(xian)(xian)還是6線(xian)(xian)(xian)先要(yao)看你的(de)(de)(de)(de)硬件要(yao)求是怎樣的(de)(de)(de)(de)，原則是：傳感器能接(jie)6線(xian)(xian)(xian)的(de)(de)(de)(de)不接(jie)4線(xian)(xian)(xian)，必須(xu)接(jie)4線(xian)(xian)(xian)的(de)(de)(de)(de)就(jiu)要(yao)進行(xing)短接(jie)。一般的(de)(de)(de)(de)稱重傳感器都(dou)是六線(xian)(xian)(xian)制的(de)(de)(de)(de)，當接(jie)成四(si)線(xian)(xian)(xian)制時，電源線(xian)(xian)(xian)（EXC-，EXC+）與(yu)反饋線(xian)(xian)(xian)（SEN-，SEN+）就(jiu)分(fen)別短接(jie)了(le)。SEN+和SEN-是補償線(xian)(xian)(xian)路電阻(zu)用的(de)(de)(de)(de)。SEN+和EXC+是通(tong)路的(de)(de)(de)(de)，SEN-和EXC-是通(tong)路的(de)(de)(de)(de)。

EXC+和EXC-是(shi)(shi)給稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)供(gong)電(dian)(dian)(dian)的(de)，但是(shi)(shi)由于(yu)(yu)稱(cheng)(cheng)(cheng)重(zhong)(zhong)模(mo)(mo)塊和傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)之間的(de)線路損耗，實(shi)際(ji)上傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)接(jie)收(shou)到(dao)的(de)電(dian)(dian)(dian)壓(ya)會小于(yu)(yu)供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)壓(ya)。每(mei)個稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)都(dou)有一(yi)個mV/V的(de)特性，它輸出的(de)m號與接(jie)收(shou)到(dao)的(de)電(dian)(dian)(dian)壓(ya)密切相關，SENS+和SENS-實(shi)際(ji)上是(shi)(shi)稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)內的(de)一(yi)個高阻(zu)抗回(hui)路，可以將稱(cheng)(cheng)(cheng)重(zhong)(zhong)模(mo)(mo)塊實(shi)際(ji)接(jie)收(shou)到(dao)的(de)電(dian)(dian)(dian)壓(ya)反(fan)饋(kui)給稱(cheng)(cheng)(cheng)重(zhong)(zhong)模(mo)(mo)塊。假設EXC+和EXC-為(wei)10V,線路損耗，傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)2mV/V，實(shi)際(ji)上傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)輸出大信(xin)號為(wei)（）*2=19mV，而不是(shi)(shi)20mV。此時稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)內部就會把(ba)(ba)19mV作為(wei)大量(liang)程，前(qian)提是(shi)(shi)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)必須通(tong)過(guo)反(fan)饋(kui)回(hui)路把(ba)(ba)實(shi)際(ji)電(dian)(dian)(dian)壓(ya)反(fan)饋(kui)給稱(cheng)(cheng)(cheng)重(zhong)(zhong)模(mo)(mo)塊。在稱(cheng)(cheng)(cheng)重(zhong)(zhong)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)上將EXC+與 SENS+短(duan)(duan)接(jie)，EXC-與SENS-短(duan)(duan)接(jie)，僅(jin)限于(yu)(yu)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)與稱(cheng)(cheng)(cheng)重(zhong)(zhong)模(mo)(mo)塊距離(li)較近(jin)，電(dian)(dian)(dian)壓(ya)損耗非常小的(de)場(chang)合，否則測量(liang)存在誤差。