柘林稱重模塊*桃花塢無人值守汽車衡檢修流程：

檢(jian)(jian)查(cha)(cha)信(xin)號線(xian)(xian)(xian)是(shi)(shi)否(fou)(fou)斷裂，主(zhu)線(xian)(xian)(xian)與儀表(biao)(biao)接(jie)頭焊點(dian)是(shi)(shi)否(fou)(fou)脫落 ，接(jie)線(xian)(xian)(xian)盒(he)里面里接(jie)線(xian)(xian)(xian)是(shi)(shi)否(fou)(fou)良好等等，這些都可能導致這個癥狀的發生。有些秤體至儀表(biao)(biao)之(zhi)間距離過大，其(qi)(qi)間主(zhu)線(xian)(xian)(xian)有外露(lu)部(bu)(bu)分，有可能被人(ren)為破(po)壞(huai)或老鼠(shu)啃咬(yao)，金(jin)屬(shu)屏蔽(bi)失(shi)去作用或連接(jie)處不牢，造成(cheng)數字跳變。用萬用表(biao)(biao)電阻(zu)檔測(ce)量(liang)該主(zhu)線(xian)(xian)(xian)，以確(que)(que)保每一(yi)股都是(shi)(shi)獨的通道，并(bing)且連線(xian)(xian)(xian)牢固(gu)，否(fou)(fou)則更(geng)換主(zhu)線(xian)(xian)(xian)。其(qi)(qi)重點(dian)是(shi)(shi)，一(yi)定要仔細確(que)(que)認接(jie)線(xian)(xian)(xian)是(shi)(shi)否(fou)(fou)有問題(ti)。如若接(jie)線(xian)(xian)(xian)是(shi)(shi)好的，那(nei)么再請檢(jian)(jian)查(cha)(cha)儀表(biao)(biao)是(shi)(shi)否(fou)(fou)正常，必要時可開封檢(jian)(jian)查(cha)(cha)儀表(biao)(biao)內部(bu)(bu)連接(jie)線(xian)(xian)(xian)是(shi)(shi)否(fou)(fou)正常。

柘林稱重模塊*桃花塢無人值守汽車衡

檢查接(jie)線(xian)盒內(nei)電(dian)路(lu)板(ban)是(shi)否損壞(huai)。接(jie)線(xian)盒內(nei)的電(dian)路(lu)板(ban)是(shi)由(you)接(jie)線(xian)端子盒和(he)幾(ji)組多圈(quan)電(dian)阻組成(cheng)。接(jie)線(xian)端子長期(qi)使(shi)用(yong)可(ke)致(zhi)氧(yang)化銹(xiu)蝕(shi)，接(jie)頭處氧(yang)化銹(xiu)蝕(shi)部分脫落，導致(zhi)壓線(xian)松動，從而(er)使(shi)儀(yi)表數字跳(tiao)變(bian)。此時，可(ke)用(yong)砂紙或銼刀摩(mo)擦(ca)掉其(qi)接(jie)觸面，重新連接(jie)牢固(gu)，故障(zhang)現(xian)象(xiang)排除(chu)。多圈(quan)電(dian)阻長期(qi)使(shi)用(yong)也可(ke)導致(zhi)內(nei)部金屬表面被氧(yang)化，使(shi)得數字不穩、跳(tiao)變(bian)，此時用(yong)更換相(xiang)同阻值(zhi)的多圈(quan)電(dian)阻即可(ke)排除(chu)故障(zhang)

柘林稱重模塊*桃花塢無人值守汽車衡

汽車衡(heng)常(chang)見(jian)問題及處(chu)理汽車衡(heng)維修的(de)過(guo)程中(zhong)會出(chu)現(xian)跳(tiao)(tiao)(tiao)(tiao)數(shu)(shu)(shu)(shu)的(de)現(xian)象，在(zai)這里淺談一(yi)下(xia)自己所(suo)遇到的(de)幾種跳(tiao)(tiao)(tiao)(tiao)數(shu)(shu)(shu)(shu)現(xian)象及解(jie)決(jue)辦法。  1.電(dian)(dian)(dian)源電(dian)(dian)(dian)壓不(bu)穩(wen)。汽車衡(heng)儀(yi)表(biao)(biao)(biao)的(de)輸入(ru)電(dian)(dian)(dian)壓范(fan)圍為(187～242)V，某些使(shi)用單位(wei)未加穩(wen)壓電(dian)(dian)(dian)源，造(zao)(zao)成(cheng)超出(chu)儀(yi)表(biao)(biao)(biao)的(de)正常(chang)工作(zuo)電(dian)(dian)(dian)壓范(fan)圍，出(chu)現(xian)數(shu)(shu)(shu)(shu)字(zi)跳(tiao)(tiao)(tiao)(tiao)變(bian)(bian)(bian)現(xian)象，配置(zhi)一(yi)個穩(wen)壓電(dian)(dian)(dian)源。  2. 接(jie)(jie)線(xian)盒(he)密封(feng)不(bu)好(hao)(hao)，盒(he)內(nei)濕度過(guo)大(da)。打開(kai)接(jie)(jie)線(xian)盒(he)觀察(cha)是(shi)否有(you)水珠或潮氣，通(tong)過(guo)晾曬或用吹(chui)風機(ji)吹(chui)干，故障即(ji)可(ke)(ke)(ke)排(pai)除(chu)。必要時(shi)更(geng)換(huan)接(jie)(jie)線(xian)盒(he)。  3. 主(zhu)線(xian)損(sun)(sun)壞。有(you)些秤體(ti)至儀(yi)表(biao)(biao)(biao)之間(jian)(jian)距離過(guo)大(da)，其(qi)間(jian)(jian)主(zhu)線(xian)有(you)外(wai)露部分，有(you)可(ke)(ke)(ke)能被人為破壞或老鼠啃咬，金屬(shu)屏蔽失去作(zuo)用或連接(jie)(jie)處(chu)不(bu)牢(lao)，造(zao)(zao)成(cheng)數(shu)(shu)(shu)(shu)字(zi)跳(tiao)(tiao)(tiao)(tiao)變(bian)(bian)(bian)。用萬用表(biao)(biao)(biao)電(dian)(dian)(dian)阻(zu)檔測量該主(zhu)線(xian)，以確保每一(yi)股都(dou)是(shi)獨(du)立的(de)通(tong)道，并且連線(xian)牢(lao)固，否則更(geng)換(huan)主(zhu)線(xian)。  4. 接(jie)(jie)線(xian)盒(he)內(nei)電(dian)(dian)(dian)路板損(sun)(sun)壞。接(jie)(jie)線(xian)盒(he)內(nei)的(de)電(dian)(dian)(dian)路板是(shi)由接(jie)(jie)線(xian)端子(zi)盒(he)和電(dian)(dian)(dian)位(wei)器(qi)(qi)組成(cheng)。接(jie)(jie)線(xian)端子(zi)長期使(shi)用可(ke)(ke)(ke)致(zhi)氧(yang)化銹(xiu)蝕，接(jie)(jie)頭處(chu)氧(yang)化銹(xiu)蝕部分脫落，導致(zhi)壓線(xian)松動(dong)，從而使(shi)儀(yi)表(biao)(biao)(biao)數(shu)(shu)(shu)(shu)字(zi)跳(tiao)(tiao)(tiao)(tiao)變(bian)(bian)(bian)。此時(shi)，可(ke)(ke)(ke)用砂紙或銼刀摩擦掉其(qi)接(jie)(jie)觸面(mian)，重(zhong)新連接(jie)(jie)牢(lao)固，故障現(xian)象排(pai)除(chu)。電(dian)(dian)(dian)位(wei)器(qi)(qi)長期使(shi)用也可(ke)(ke)(ke)導致(zhi)內(nei)部金屬(shu)表(biao)(biao)(biao)面(mian)被氧(yang)化，使(shi)得數(shu)(shu)(shu)(shu)字(zi)不(bu)穩(wen)、跳(tiao)(tiao)(tiao)(tiao)變(bian)(bian)(bian)，此時(shi)用更(geng)換(huan)相同(tong)阻(zu)值(zhi)的(de)電(dian)(dian)(dian)位(wei)器(qi)(qi)即(ji)可(ke)(ke)(ke)排(pai)除(chu)故障。  5. 強電(dian)(dian)(dian)干擾。當汽車衡(heng)附(fu)近有(you)強電(dian)(dian)(dian)操(cao)作(zuo)時(shi)會干擾到汽車衡(heng)的(de)正常(chang)工作(zuo)，引起跳(tiao)(tiao)(tiao)(tiao)數(shu)(shu)(shu)(shu)是(shi)其(qi)中(zhong)的(de)一(yi)個表(biao)(biao)(biao)現(xian)形(xing)式，此時(shi)要停止強電(dian)(dian)(dian)操(cao)作(zuo)。做(zuo)好(hao)(hao)接(jie)(jie)地線(xian)進行抗干擾。  6. 傳感器(qi)(qi)損(sun)(sun)壞、漂(piao)(piao)移(yi)。當傳感器(qi)(qi)損(sun)(sun)壞或發生(sheng)漂(piao)(piao)移(yi)時(shi)，也可(ke)(ke)(ke)造(zao)(zao)成(cheng)數(shu)(shu)(shu)(shu)字(zi)跳(tiao)(tiao)(tiao)(tiao)變(bian)(bian)(bian)不(bu)穩(wen)。一(yi)般情況(kuang)下(xia)，有(you)一(yi)只(zhi)傳感器(qi)(qi)漂(piao)(piao)移(yi)或損(sun)(sun)壞。判(pan)斷具體(ti)哪(na)只(zhi)有(you)故障，可(ke)(ke)(ke)用直(zhi)接(jie)(jie)連接(jie)(jie)主(zhu)線(xian)的(de)方法進行。即(ji)把所(suo)有(you)傳感器(qi)(qi)接(jie)(jie)線(xian)逐只(zhi)拆下(xia)直(zhi)至剩(sheng)下(xia)一(yi)只(zhi)，然后把傳感器(qi)(qi)逐只(zhi)接(jie)(jie)上，同(tong)時(shi)觀察(cha)儀(yi)表(biao)(biao)(biao)顯(xian)示是(shi)否正常(chang)，即(ji)可(ke)(ke)(ke)判(pan)斷出(chu)損(sun)(sun)壞的(de)傳感器(qi)(qi)。予以更(geng)換(huan)即(ji)可(ke)(ke)(ke)解(jie)決(jue)問題。柘林稱重模塊*桃花塢無人值守汽車衡