電磁流量計(jì)輸出脈沖信號(hào)方式
添加時(shí)間:2014-10-17 02:37:33 點(diǎn)擊次數(shù):341
電磁流量計(jì)脈沖輸出方式主要用于計(jì)量方式,輸出一個(gè)脈沖,代表一個(gè)當(dāng)量流量,如1L或1M3等。脈沖輸出當(dāng)量分 成:0.001L,0.01L,0.1L,1L,0.001 M3 ,0.01 M3,0.1 M3,1 M3; ,0.001UKG,0.01UKG,0.1UKG,1UKG,0.001USG,0.01USG,0.1USG, 1USG。用戶在選擇脈沖當(dāng)量時(shí),應(yīng)注意流量計(jì)流量范圍和脈沖當(dāng)量相匹配。對(duì)于體積流量,計(jì)算公式如下:QL=0.0007854×D2×V (L/S)或 QM=0.0007854×D2×V×10-3(M3/S;這里D — 管徑(mm);V — 流速(m/s)
如果,流量過大而脈沖當(dāng)量選的過小,將會(huì)造成脈沖輸出超上限,所以,脈沖輸出頻率應(yīng)限制在2000P/S以下。當(dāng)然,流量小而脈沖當(dāng)量選的過大又會(huì)造成儀表很長(zhǎng)時(shí)間才能輸出一個(gè)脈沖。
另外,脈沖輸出不同于頻率輸出,脈沖輸出是累積夠一個(gè)脈沖當(dāng)量就能輸出一個(gè)脈沖,因此,脈沖輸出不是很均勻的。
本公司專業(yè)從事電磁流量計(jì)、渦街流量計(jì)、渦輪流量計(jì)的研發(fā)和銷售,歡迎前來咨詢!