QBJ-3PN-A01-B02-C01-D01偏(pian)(pian)心(xin)是在(zai)(zai)低轉(zhuan)(zhuan)速的(de)(de)(de)(de)情(qing)況下(xia)，對軸彎(wan)(wan)曲(qu)的(de)(de)(de)(de)測(ce)量，這種彎(wan)(wan)曲(qu)可(ke)(ke)(ke)由(you)下(xia)列情(qing)況引起：原有的(de)(de)(de)(de)機械彎(wan)(wan)曲(qu)，臨(lin)時溫升(sheng)導(dao)致的(de)(de)(de)(de)彎(wan)(wan)曲(qu)，在(zai)(zai)靜態(tai)(tai)下(xia)必然有些向下(xia)彎(wan)(wan)曲(qu)，有時也叫重(zhong)力彎(wan)(wan)曲(qu)，轉(zhuan)(zhuan)子的(de)(de)(de)(de)偏(pian)(pian)心(xin)位(wei)(wei)置(zhi)，也叫做(zuo)軸的(de)(de)(de)(de)徑向位(wei)(wei)置(zhi)，它經常(chang)用(yong)(yong)來(lai)指示軸承的(de)(de)(de)(de)磨損。以(yi)及予(yu)加的(de)(de)(de)(de)負荷大(da)小，例如由(you)不(bu)(bu)對中導(dao)致的(de)(de)(de)(de)那種情(qing)況。它同(tong)時也用(yong)(yong)來(lai)決定(ding)(ding)軸的(de)(de)(de)(de)方位(wei)(wei)角，方位(wei)(wei)角可(ke)(ke)(ke)以(yi)說明(ming)轉(zhuan)(zhuan)子是否(fou)穩(wen)定(ding)(ding)。  報(bao)警危險值(zhi)可(ke)(ke)(ke)以(yi)任(ren)意設定(ding)(ding)(量程范圍內)，報(bao)警危險繼電(dian)(dian)器(qi)輸(shu)(shu)出延時四檔定(ding)(ding)值(zhi)選擇：(0.1S,1S,3S,6S)測(ce)量值(zhi)的(de)(de)(de)(de)記憶，間隙電(dian)(dian)壓(ya)測(ce)量顯(xian)示。每項保(bao)護(hu)項目(mu)都采用(yong)(yong)包括(kuo)一次元件(jian)在(zai)(zai)內的(de)(de)(de)(de)三通(tong)(tong)道(dao)配置(zhi)，同(tong)時監視被(bei)測(ce)參(can)數。用(yong)(yong)雙(shuang)路(lu)(lu)PLC作(zuo)(zuo)為主控(kong)制(zhi)器(qi)，同(tong)時接受每個(ge)保(bao)護(hu)項目(mu)的(de)(de)(de)(de)三通(tong)(tong)道(dao)信(xin)(xin)號(hao)，并用(yong)(yong)三選二(er)邏輯判斷(duan)被(bei)測(ce)參(can)數，使(shi)動作(zuo)(zuo)停機信(xin)(xin)號(hao)正確無(wu)誤。每路(lu)(lu)PLC各自(zi)控(kong)制(zhi)輸(shu)(shu)出，分別驅(qu)動被(bei)控(kong)電(dian)(dian)磁(ci)閥，減(jian)少被(bei)控(kong)電(dian)(dian)磁(ci)閥的(de)(de)(de)(de)拒(ju)動或誤動的(de)(de)(de)(de)可(ke)(ke)(ke)能性(xing)。 不(bu)(bu)從心(xin) 　每項被(bei)測(ce)參(can)數的(de)(de)(de)(de)通(tong)(tong)道(dao)均可(ke)(ke)(ke)進行在(zai)(zai)線(xian)試驗，在(zai)(zai)汽機正常(chang)運(yun)行中，不(bu)(bu)切斷(duan)保(bao)護(hu)的(de)(de)(de)(de)情(qing)況下(xia)，定(ding)(ding)期(qi)鑒(jian)定(ding)(ding)每個(ge)通(tong)(tong)道(dao)的(de)(de)(de)(de)運(yun)行狀態(tai)(tai)。測(ce)量范圍：0-200um (峰～峰偏(pian)(pian)心(xin)值(zhi))，頻(pin)率響應：0.17Hz～10Hz（1～600cpm），超過600轉(zhuan)(zhuan)/分,不(bu)(bu)再顯(xian)示偏(pian)(pian)心(xin)值(zhi),顯(xian)示數值(zhi)為軸振動信(xin)(xin)號(hao)，恒流輸(shu)(shu)出：4～20mA ，精度：線(xian)性(xing)誤差(cha)：＜0.5%（滿(man)度值(zhi)），報(bao)警：0～200um內任(ren)意設定(ding)(ding)，噪聲電(dian)(dian)平(ping)：無(wu)訊號(hao)輸(shu)(shu)入時，＜1%（滿(man)度值(zhi)），使(shi)用(yong)(yong)環境：儀表溫度：-10℃～45℃，相(xiang)對濕(shi)度≤80％(儀表)，傳感器(qi)溫度：-25℃～85℃，相(xiang)對濕(shi)度≤90％(傳感器(qi))，恒流輸(shu)(shu)出：4～20mA