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高溫型壓力變送器

更新:2016-04-15 08:45:57 點擊:
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產品介紹

            壓(ya)力變送器 

                                            江(jiang)蘇奧(ao)科儀表有限公司

                               銷售熱線:0517-86919886  手機:15261725556

     是工業(ye)實踐中最為(wei)常用(yong)(yong)的一種(zhong)(zhong)傳感器,其廣泛應用(yong)(yong)于各(ge)種(zhong)(zhong)工業(ye)自控環境,涉及水利水電(dian)、鐵路交通、智能建筑、生產自控、航空航天、軍工、石(shi)化、油井、電(dian)力、船舶、機床(chuang)、管(guan)道等眾多行業(ye)。下面就(jiu)簡單介紹一些(xie)常用(yong)(yong)壓(ya)力變送(song)器的原理及其應用(yong)(yong)、壓(ya)力變送(song)器是用(yong)(yong)于測量液(ye)體、氣體或蒸汽的液(ye)位、密度和壓(ya)力,然后將壓(ya)力信(xin)號(hao)轉變成4~20mA DC信(xin)號(hao)輸出。

壓(ya)力變(bian)(bian)送(song)(song)(song)器(qi)主要有電(dian)容式壓(ya)力變(bian)(bian)送(song)(song)(song)器(qi)和擴散硅壓(ya)力變(bian)(bian)送(song)(song)(song)器(qi),陶瓷壓(ya)力變(bian)(bian)送(song)(song)(song)器(qi),應變(bian)(bian)式壓(ya)力變(bian)(bian)送(song)(song)(song)器(qi)等。壓(ya)力變(bian)(bian)送(song)(song)(song)器(qi)根據測壓(ya)范(fan)圍可分成一般(ban)壓(ya)力變(bian)(bian)送(song)(song)(song)器(qi)(0.001MPa~35MPa)和微(wei)差(cha)壓(ya)變(bian)(bian)送(song)(song)(song)器(qi)(0~1.5kPa),負壓(ya)變(bian)(bian)送(song)(song)(song)器(qi)三(san)種(zhong)。
壓(ya)(ya)力(li)(li)變送(song)器的主要作(zuo)用(yong)把壓(ya)(ya)力(li)(li)信(xin)號(hao)(hao)傳到(dao)電(dian)(dian)(dian)子設備,進而(er)在(zai)(zai)計算(suan)機顯示壓(ya)(ya)力(li)(li)其原理大(da)致(zhi)是:將水壓(ya)(ya)這(zhe)種壓(ya)(ya)力(li)(li)的力(li)(li)學信(xin)號(hao)(hao)轉變成(cheng)電(dian)(dian)(dian)流(liu)(4-20mA)這(zhe)樣的電(dian)(dian)(dian)子信(xin)號(hao)(hao)壓(ya)(ya)力(li)(li)和(he)電(dian)(dian)(dian)壓(ya)(ya)或(huo)電(dian)(dian)(dian)流(liu)大(da)小成(cheng)線性關(guan)系(xi),一般是正(zheng)比(bi)關(guan)系(xi)。所以(yi),變送(song)器輸出的電(dian)(dian)(dian)壓(ya)(ya)或(huo)電(dian)(dian)(dian)流(liu)隨壓(ya)(ya)力(li)(li)增(zeng)大(da)而(er)增(zeng)大(da)由此得(de)出一個壓(ya)(ya)力(li)(li)和(he)電(dian)(dian)(dian)壓(ya)(ya)或(huo)電(dian)(dian)(dian)流(liu)的關(guan)系(xi)式壓(ya)(ya)力(li)(li)變送(song)器的被測介質的兩種壓(ya)(ya)力(li)(li)通入高、低兩壓(ya)(ya)力(li)(li)室(shi),低壓(ya)(ya)室(shi)壓(ya)(ya)力(li)(li)采用(yong)大(da)氣壓(ya)(ya)或(huo)真(zhen)空,作(zuo)用(yong)在(zai)(zai)δ元(即敏感元件)的兩側(ce)(ce)隔(ge)離膜片上,通過(guo)隔(ge)離片和(he)元件內的填充(chong)液傳送(song)到(dao)測量(liang)膜片兩側(ce)(ce)。
壓(ya)力變送(song)器(qi)是由(you)測(ce)量(liang)(liang)膜片(pian)與兩側絕緣片(pian)上的電極各(ge)組成一(yi)個電容(rong)器(qi)。當兩側壓(ya)力不(bu)一(yi)致時,致使(shi)測(ce)量(liang)(liang)膜片(pian)產生位移,其位移量(liang)(liang)和壓(ya)力差(cha)成正比(bi),故(gu)兩側電容(rong)量(liang)(liang)就不(bu)等,通過振蕩(dang)和解(jie)調環節。


AK-BSQ-01產品特點:
具(ju)有反向極性和限流保護;激光調(diao)阻溫度補償,范圍寬,抗腐蝕,適于多種介質;過載(zai)及(ji)抗干擾能力強,性能穩定(ding);獨特(te)顯示表頭設計,可(ke)(ke)以選配模擬、數字顯示表頭;零點和滿量程可(ke)(ke)通(tong)過手(shou)操(cao)器(qi)調(diao)節,量程遷(qian)移范圍寬。

AK-BSQ-01技(ji)術(shu)參數:

測量(liang)介(jie)質
氣體、液(ye)體、油等與(yu)316兼容的(de)介質
測量形式及范(fan)圍
表壓(G)---最(zui)大(0~120)MPa, 最(zui)小(0~1)KPa
絕壓(A)---最大(0~120)MPa, 最小 (0~10)KPa
負壓(B)---最大(da)(-0.1~40)MPa, 最小(xiao)(-0.2~0.2 )KPa
精度等(deng)級:
0.1、 0.25、 0.5
過載能力:
量程的(de)2~20倍
長(chang)期(qi)穩(wen)定性:
小(xiao)于0.25%FS/年(nian),小(xiao)于0.5%FS/年(nian)
供電電源:
15~36 VDC(標定(ding)電壓24VDC)
輸出信號:
(4~20)mA(二線制)HART通訊
顯示方(fang)式:
4位LCD顯示
操(cao)作(zuo)方式:
自帶2位(wei)輕(qing)觸(chu)摸按鍵
零點(dian)量程遷移
直接(jie)通過按鍵對零(ling)點、量程進行遷(qian)移
工作溫度:
(-40~80)℃    補(bu)償溫(wen)度:(-20~70)℃
過程連接:
M20×1.5外螺紋或用(yong)戶注明(ming)
隔離膜片材料:
1Cr18Ni9Ti
外(wai)殼材料:
合金鋁
防護(hu)等級:
IP65

零(ling)點(dian)和量程調節:
的零(ling)(ling)點和量程(cheng)調(diao)節(jie)可(ke)(ke)以通過變送器本身(shen)的按鍵(jian)進行現場(chang)調(diao)節(jie);也可(ke)(ke)以通過手持終端遠(yuan)程(cheng)調(diao)節(jie)。具體方法是:加零(ling)(ling)點壓(ya)力并(bing)穩定后,同時按住Z和S鍵(jian)(Z為(wei)零(ling)(ling)點調(diao)節(jie),S為(wei)量程(cheng)調(diao)節(jie))5秒(miao)鐘松開,按Z鍵(jian)2秒(miao)調(diao)節(jie)零(ling)(ling)點,加滿程(cheng)壓(ya)力并(bing)穩定后,按S鍵(jian)2秒(miao)調(diao)節(jie)滿程(cheng)。注:零(ling)(ling)點校(xiao)準調(diao)節(jie)范圍(wei)為(wei)壓(ya)力量程(cheng)的±8%,量程(cheng)校(xiao)準范圍(wei)為(wei)壓(ya)力量程(cheng)的30%~100%,連續可(ke)(ke)調(diao)。調(diao)節(jie)完畢后,蓋(gai)好密封蓋(gai)并(bing)擰緊。

數顯壓力變(bian)送器(qi)產(chan)品選(xuan)型

AK-BSQ-01T壓力變送器
AK-BSQ-01
數顯壓力變送器(qi)
 
測量(liang)形式(注明量(liang)程)
 
G、表(biao)壓(ya)(ya)  A、絕對壓(ya)(ya)力  B、密封壓(ya)(ya)力(注明(ming)參考壓(ya)(ya)力值)
膜片材料(liao)
 
K、擴散硅(默認) T、陶瓷壓(ya)阻  P、陶瓷電(dian)容
E口
輸出(chu)信(xin)號
 
1、二線制(4~20)mA   2、HART協議(yi)輸出(chu)   3、1-5V低(di)功耗   4、其(qi)它注明
A口(kou)
精度
 
 
1、0.1  2、0.25  3、0.5
C口
過程(cheng)連接(jie)方(fang)式
 
1、外螺(luo)紋M20×1.5(默(mo)認)  2、外螺(luo)紋G1/2  3、外螺(luo)紋NPT1/2 4、齊平(ping)膜   5、其(qi)它注明
D口
顯示方式
 
1、  無顯(xian)示(shi)(shi)(默認)  2、0~100%線性指示(shi)(shi)  3、LCD數字(zi)(zi)量程顯(xian)示(shi)(shi)(液晶)  4、LCD數字(zi)(zi)0~100%顯(xian)示(shi)(shi)(液晶)  5、LED數字(zi)(zi)0~100%顯(xian)示(shi)(shi)(數碼(ma)管)
R口
其它
 
1、本安型(xing)  2、隔爆型(xing)  3、阻(zu)尼  4、用(yong)戶約定(ding)
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