一、水表怎么讀?
1、數字(zi)水表(biao):水表(biao)怎(zen)么(me)看用了多(duo)少水?在數字(zi)水表(biao)的最(zui)(zui)上方有5個數字(zi),其中前四個數字(zi)是黑色的,表(biao)示(shi)(shi)(shi)的是噸(dun)(dun),第(di)五個數字(zi)則是紅色的,表(biao)示(shi)(shi)(shi)的是零(ling)(ling)(ling)(ling)點(dian)(dian)幾(ji)噸(dun)(dun)(0.*噸(dun)(dun))。然后(hou)還(huan)可以看到(dao)上面有三個紅色的指(zhi)(zhi)針,最(zui)(zui)上方的指(zhi)(zhi)針代(dai)表(biao)著是用水零(ling)(ling)(ling)(ling)點(dian)(dian)零(ling)(ling)(ling)(ling)幾(ji)噸(dun)(dun)(0.0*噸(dun)(dun)),中間(jian)的指(zhi)(zhi)針表(biao)示(shi)(shi)(shi)的是零(ling)(ling)(ling)(ling)點(dian)(dian)零(ling)(ling)(ling)(ling)零(ling)(ling)(ling)(ling)幾(ji)噸(dun)(dun)(0.00*噸(dun)(dun)),最(zui)(zui)后(hou)則表(biao)示(shi)(shi)(shi)的是零(ling)(ling)(ling)(ling)點(dian)(dian)零(ling)(ling)(ling)(ling)零(ling)(ling)(ling)(ling)零(ling)(ling)(ling)(ling)幾(ji)噸(dun)(dun)(0.000*噸(dun)(dun))。
2、指針水表:指針水表是非常老式的一種水表品牌產品,采取的是十(shi)(shi)進位(wei)(wei)累(lei)進計數的方式,黑(hei)盤(pan)指示(shi)(shi)(shi)數有個(ge)、十(shi)(shi)、百(bai)、千四(si)個(ge)指示(shi)(shi)(shi)盤(pan),查表(biao)時要掌握(wo)進位(wei)(wei)方法,個(ge)位(wei)(wei)指針(zhen)沒(mei)走(zou)到0,十(shi)(shi)位(wei)(wei)表(biao)指示(shi)(shi)(shi)數不得進位(wei)(wei);十(shi)(shi)位(wei)(wei)指針(zhen)沒(mei)走(zou)到0,百(bai)位(wei)(wei)表(biao)指示(shi)(shi)(shi)數不得進位(wei)(wei);百(bai)位(wei)(wei)指示(shi)(shi)(shi)針(zhen)沒(mei)走(zou)到0,千位(wei)(wei)表(biao)指示(shi)(shi)(shi)數不得進位(wei)(wei)。
3、智(zhi)能(neng)水(shui)(shui)表(biao):這種水(shui)(shui)表(biao)是近(jin)幾(ji)年來(lai)新興的(de)(de)水(shui)(shui)表(biao),采用(yong)的(de)(de)是IC卡智(zhi)能(neng)水(shui)(shui)表(biao),它(ta)的(de)(de)盤與(yu)數(shu)(shu)字水(shui)(shui)表(biao)基本上(shang)都(dou)是一致的(de)(de),看法也與(yu)數(shu)(shu)字水(shui)(shui)表(biao)相差無幾(ji),大家在(zai)看的(de)(de)時候就(jiu)采取數(shu)(shu)字水(shui)(shui)表(biao)的(de)(de)方式(shi)即可。
4、跳字(zi)(zi)式水(shui)(shui)表:跳字(zi)(zi)式水(shui)(shui)表只(zhi)讀(du)取四位(wei)黑字(zi)(zi)的有效數(shu)值,其他指針只(zhi)作為水(shui)(shui)表檢驗時使用(yong)(yong)(yong)的,用(yong)(yong)(yong)戶不必讀(du)取。跳字(zi)(zi)式水(shui)(shui)表的每個(ge)(ge)小表上面有單(dan)(dan)位(wei)的,你只(zhi)需要把表上的數(shu)讀(du)出來乘(cheng)以單(dan)(dan)位(wei),最后全部相加就(jiu)是(shi)了總數(shu),用(yong)(yong)(yong)這個(ge)(ge)數(shu)減去你上個(ge)(ge)月讀(du)出來的數(shu),就(jiu)是(shi)你這個(ge)(ge)月用(yong)(yong)(yong)的。
二、水表不用水為什么還轉
出現這(zhe)種情況的(de)原因并不復雜(za),當新(xin)安裝(zhuang)水表(biao)(biao)或水表(biao)(biao)外移時(shi)(shi),管道內(nei)的(de)水被放空(kong)(kong),空(kong)(kong)氣(qi)(qi)便“乘(cheng)虛而入”;當恢復通水時(shi)(shi),水流(liu)把管道內(nei)的(de)空(kong)(kong)氣(qi)(qi)壓(ya)(ya)(ya)(ya)向室內(nei)管道各個(ge)盲端,形成“壓(ya)(ya)(ya)(ya)縮(suo)空(kong)(kong)氣(qi)(qi)”,直(zhi)到氣(qi)(qi)壓(ya)(ya)(ya)(ya)與水壓(ya)(ya)(ya)(ya)平(ping)衡為止。氣(qi)(qi)、水之間(jian)存在一個(ge)界(jie)面(mian),此時(shi)(shi)界(jie)面(mian)兩邊的(de)壓(ya)(ya)(ya)(ya)差為零(ling);而當水壓(ya)(ya)(ya)(ya)發生(sheng)(sheng)變化時(shi)(shi),界(jie)面(mian)兩邊就(jiu)形成了一定(ding)的(de)壓(ya)(ya)(ya)(ya)差,氣(qi)(qi)、水平(ping)衡被破壞(huai)。要(yao)彌補(bu)這(zhe)個(ge)壓(ya)(ya)(ya)(ya)差,達到新(xin)的(de)平(ping)衡,必(bi)須(xu)相應改變空(kong)(kong)氣(qi)(qi)的(de)壓(ya)(ya)(ya)(ya)力,從而引起空(kong)(kong)氣(qi)(qi)體積膨脹或收(shou)縮(suo),由(you)此促使(shi)管道這(zhe)個(ge)“連通器”內(nei)的(de)自來水產生(sheng)(sheng)流(liu)動,于(yu)是,“水表(biao)(biao)空(kong)(kong)轉”現象就(jiu)產生(sheng)(sheng)了。