防爆天然氣灌裝稱*C602控制儀表鋼瓶秤

1. 問(wen)題(ti)現象(xiang)：黑龍江某公司 120噸(dun)地磅有(you)(you)時(shi)(shi)重車開(kai)(kai)上(shang)后(hou)顯(xian)示(shi)負(fu)超載(zai)，重新開(kai)(kai)機后(hou)有(you)(you)時(shi)(shi)能(neng)恢復(fu)正(zheng)(zheng)常(chang)，此(ci)現象(xiang)經常(chang)發生。問(wen)題(ti)分析：問(wen)題(ti)時(shi)(shi)有(you)(you)時(shi)(shi)無，估計不(bu)是稱重顯(xian)示(shi)器的(de)原因(yin)。檢查磅臺、連接(jie)(jie)件、限位(wei)都正(zheng)(zheng)常(chang)，排(pai)除(chu)機械方面原因(yin)。把接(jie)(jie)線板上(shang)所有(you)(you)的(de)焊點重新檢查一(yi)遍，排(pai)除(chu)了(le)虛焊或脫焊的(de)可能(neng)。后(hou)用“替代(dai)法(fa)”和“扯線法(fa)”查出故障是由某個傳感(gan)(gan)器引(yin)起(qi)的(de)。經檢查確認有(you)(you)一(yi)個傳感(gan)(gan)器的(de)信(xin)號(hao)(hao)線被老鼠咬(yao)破，有(you)(you)時(shi)(shi)能(neng)接(jie)(jie)觸上(shang)，則(ze)儀表正(zheng)(zheng)常(chang)，有(you)(you)時(shi)(shi)則(ze)處于(yu)斷開(kai)(kai)狀態，儀表顯(xian)示(shi)負(fu)超載(zai)。問(wen)題(ti)處理：把該傳感(gan)(gan)器信(xin)號(hao)(hao)線從咬(yao)破皮處剪(jian)斷，用環氧樹脂處理后(hou)，做個接(jie)(jie)頭，地磅恢復(fu)正(zheng)(zheng)常(chang)。

2. 問(wen)題現(xian)象：山西某公司 120噸地磅顯(xian)示(shi)(shi)(shi)器(qi)(qi)顯(xian)示(shi)(shi)(shi)不穩，從＋ 20 到 -100 跳(tiao)變。問(wen)題分析：先(xian)用(yong)模擬器(qi)(qi)檢查證明儀(yi)(yi)(yi)表(biao)正常(chang)，經檢查也不是機械故(gu)障(zhang)，則故(gu)障(zhang)可能出(chu)在接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)盒(he)(he)或(huo)傳感(gan)器(qi)(qi)。該地磅有三節秤(cheng)(cheng)臺(tai)，三個(ge)接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)盒(he)(he)， 8 個(ge)傳感(gan)器(qi)(qi)，檢查時(shi)發現(xian)把(ba)(ba)北(bei)面(mian)(mian)秤(cheng)(cheng)臺(tai)通(tong)向(xiang)中(zhong)(zhong)間接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)盒(he)(he)的信號(hao)(hao)總線(xian)(xian)(xian)焊(han)(han)下后，儀(yi)(yi)(yi)表(biao)顯(xian)示(shi)(shi)(shi)正常(chang)，而當(dang)把(ba)(ba)南面(mian)(mian)秤(cheng)(cheng)臺(tai)通(tong)向(xiang)中(zhong)(zhong)間接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)盒(he)(he)的信號(hao)(hao)線(xian)(xian)(xian)焊(han)(han)下時(shi)，顯(xian)示(shi)(shi)(shi)器(qi)(qi)顯(xian)示(shi)(shi)(shi)依舊不穩，則得出(chu)結論南面(mian)(mian)秤(cheng)(cheng)臺(tai)正常(chang)，問(wen)題由北(bei)面(mian)(mian)秤(cheng)(cheng)臺(tai)引起，包括四個(ge)傳感(gan)器(qi)(qi)及兩個(ge)接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)盒(he)(he)。用(yong)萬用(yong)表(biao)測量，發現(xian)中(zhong)(zhong)間接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)盒(he)(he)內聯接(jie)(jie)(jie)(jie)北(bei)面(mian)(mian)秤(cheng)(cheng)臺(tai)的信號(hao)(hao)線(xian)(xian)(xian)中(zhong)(zhong)激(ji)勵電壓(ya)為 11 伏多且不穩，而正常(chang)值(zhi)為 12.5 伏，經檢查接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)板上(shang)的＋ EX 接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)孔虛焊(han)(han)。故(gu)障(zhang)處理(li)：焊(han)(han)一(yi)根短路(lu)線(xian)(xian)(xian)直接(jie)(jie)(jie)(jie)把(ba)(ba)此(ci)＋ EX 接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)端與儀(yi)(yi)(yi)表(biao)過來的＋ EX 端相連，故(gu)障(zhang)解決(jue)。

防爆天然氣灌裝稱*C602控制儀表鋼瓶秤

1. 問(wen)題(ti)現象：黑龍江某公司 120噸地磅有(you)(you)(you)(you)時重(zhong)車(che)開(kai)(kai)上(shang)后顯(xian)示負(fu)超(chao)載，重(zhong)新(xin)開(kai)(kai)機(ji)后有(you)(you)(you)(you)時能(neng)恢(hui)復(fu)正(zheng)(zheng)(zheng)常，此現象經常發生。問(wen)題(ti)分(fen)析：問(wen)題(ti)時有(you)(you)(you)(you)時無，估計不(bu)是(shi)(shi)稱重(zhong)顯(xian)示器的原因。檢查磅臺、連接件、限位都正(zheng)(zheng)(zheng)常，排除機(ji)械(xie)方面原因。把(ba)(ba)接線板上(shang)所有(you)(you)(you)(you)的焊點(dian)重(zhong)新(xin)檢查一遍，排除了(le)虛焊或脫焊的可能(neng)。后用“替代法(fa)”和“扯線法(fa)”查出故障是(shi)(shi)由某個(ge)傳感器引起的。經檢查確認有(you)(you)(you)(you)一個(ge)傳感器的信(xin)號(hao)線被老鼠咬(yao)破(po)，有(you)(you)(you)(you)時能(neng)接觸上(shang)，則(ze)儀(yi)表(biao)正(zheng)(zheng)(zheng)常，有(you)(you)(you)(you)時則(ze)處于斷(duan)開(kai)(kai)狀態，儀(yi)表(biao)顯(xian)示負(fu)超(chao)載。問(wen)題(ti)處理：把(ba)(ba)該(gai)傳感器信(xin)號(hao)線從咬(yao)破(po)皮處剪斷(duan)，用環氧樹脂(zhi)處理后，做個(ge)接頭(tou)，地磅恢(hui)復(fu)正(zheng)(zheng)(zheng)常。

2. 問題現(xian)象：山西某(mou)公司(si) 120噸地磅顯(xian)示器(qi)(qi)顯(xian)示不(bu)穩，從＋ 20 到 -100 跳變。問題分析：先(xian)用模擬器(qi)(qi)檢(jian)查(cha)(cha)證(zheng)明儀(yi)(yi)(yi)表正(zheng)常，經(jing)檢(jian)查(cha)(cha)也不(bu)是(shi)機械(xie)故障(zhang)，則故障(zhang)可(ke)能出在接(jie)(jie)線(xian)(xian)(xian)盒(he)或傳感器(qi)(qi)。該地磅有三(san)節秤(cheng)臺(tai)，三(san)個接(jie)(jie)線(xian)(xian)(xian)盒(he)， 8 個傳感器(qi)(qi)，檢(jian)查(cha)(cha)時(shi)發現(xian)把北面秤(cheng)臺(tai)通(tong)向(xiang)中(zhong)間接(jie)(jie)線(xian)(xian)(xian)盒(he)的(de)信(xin)號總線(xian)(xian)(xian)焊(han)(han)下(xia)后，儀(yi)(yi)(yi)表顯(xian)示正(zheng)常，而(er)當把南面秤(cheng)臺(tai)通(tong)向(xiang)中(zhong)間接(jie)(jie)線(xian)(xian)(xian)盒(he)的(de)信(xin)號線(xian)(xian)(xian)焊(han)(han)下(xia)時(shi)，顯(xian)示器(qi)(qi)顯(xian)示依舊不(bu)穩，則得(de)出結論南面秤(cheng)臺(tai)正(zheng)常，問題由北面秤(cheng)臺(tai)引起，包括四(si)個傳感器(qi)(qi)及兩個接(jie)(jie)線(xian)(xian)(xian)盒(he)。用萬(wan)用表測量，發現(xian)中(zhong)間接(jie)(jie)線(xian)(xian)(xian)盒(he)內聯接(jie)(jie)北面秤(cheng)臺(tai)的(de)信(xin)號線(xian)(xian)(xian)中(zhong)激勵電(dian)壓為(wei) 11 伏多(duo)且不(bu)穩，而(er)正(zheng)常值為(wei) 12.5 伏，經(jing)檢(jian)查(cha)(cha)接(jie)(jie)線(xian)(xian)(xian)板上(shang)的(de)＋ EX 接(jie)(jie)線(xian)(xian)(xian)孔虛焊(han)(han)。故障(zhang)處(chu)理：焊(han)(han)一根短路線(xian)(xian)(xian)直接(jie)(jie)把此＋ EX 接(jie)(jie)線(xian)(xian)(xian)端與儀(yi)(yi)(yi)表過來的(de)＋ EX 端相連，故障(zhang)解(jie)決。

防爆天然氣灌裝稱*C602控制儀表鋼瓶秤