智能(neng)電(dian)量(liang)變送器,它(ta)采(cai)用單(dan)片機(ji)作為(wei)控制(zhi)核心,可(ke)實(shi)現(xian)三(san)相(xiang)四線或其(qi)它(ta)任意線制(zhi)的電(dian)壓、電(dian)流等全(quan)部(bu)電(dian)參數(shu)的測(ce)量(liang),是(shi)傳統電(dian)量(liang)變送器的更新換代產品(pin)。 智能(neng)電(dian)量(liang)變送器廣泛(fan)應(ying)用於(yu)電(dian)力、郵(you)電(dian)、石(shi)油(you),煤炭(tan)、冶(ye)金、鐵(tie)道、市政、智能(neng)大廈(sha)等(deng)行業、部(bu)門的電(dian)氣裝置,自動控制(zhi)及(ji)調(tiao)度(du)系(xi)統。
主要(yao)技術(shu)指標
(1).額(e)定(ding)環路(lu)電(dian)流:DC4-20mA(靜態(tai)、滿程(cheng)可(ke)調(tiao)節)
(2).額(e)定(ding)控制(zhi)端電(dian)壓:DC0-5V±10%(靜態(tai)、滿程(cheng)可(ke)調(tiao)節)
(3).額(e)定(ding)工(gong)作電(dian)壓:+24V±20%
(4).額(e)定(ding)控制(zhi)端輸(shu)入(ru)電(dian)流:≤100uA
(5).額(e)定(ding)電(dian)源功耗(hao):靜態(tai)4mA,動態時相(xiang)等與(yu)環路(lu)電(dian)流20mA
(6).非線(xian)性(xing)失真(zhen):0.1%FS
(7).額(e)定(ding)輸出電(dian)流溫漂(piao):≤50ppm/℃
(8).靜態(tai)零(ling)電(dian)平(ping):(4mA) 調(tiao)節範圍(wei):4mA±25%(3mA-5mA)
(10).小(xiao)工(gong)作電(dian)壓:>15V
(11).極限(xian)工(gong)作電(dian)壓:≤35V
(12).額(e)定(ding)輸出過流限(xian)制(zhi)保護:內(nei)部(bu)限(xian)制(zhi)25mA+10%;
(13).兩線端口瞬態感(gan)應(ying)雷(lei)與(yu)浪(lang)湧電(dian)流TVS抑(yi)制(zhi)保護能(neng)力(li):TVS抑(yi)制(zhi)沖(chong)擊(ji)電(dian)流
3/20ms/1.5KW; (需外(wai)接1.5KE35CA瞬態(tai)抑(yi)制(zhi)二(er)極管(guan))
(14).兩線端口接錯保(bao)護:電(dian)源反(fan)接保護 (需外(wai)接1N4007二(er)極管(guan))
(15).工(gong)作溫度(du): -40℃-80℃
(16).貯存溫度(du): -50℃-100℃