紅旗儀表生產(chǎn)的HQ-LWQ渦輪式流量計(jì)采用渦輪進(jìn)行測(cè)量的流量計(jì)。它先將流速轉(zhuǎn)換為渦輪的轉(zhuǎn)速，再將轉(zhuǎn)速轉(zhuǎn)換成與流量成正比的電信號(hào)。這種流量計(jì)用于檢測(cè)瞬時(shí)流量和總的積算流量，其輸出信號(hào)為頻率，易于數(shù)字化。
HQ-LWQ渦輪式流量計(jì)特點(diǎn)：
★壓力損失小，葉輪具有腐功能；
★采用的功耗單片微機(jī)技術(shù)，整機(jī)、功耗低、性能。
★具有非線性補(bǔ)償功能的智能流量顯示器。修正公式&plun;0.02%
★儀表系數(shù)可由按鍵在線設(shè)置，并可顯示在LCD屏上，LCD屏直觀清晰，
★采用EEPROM對(duì)累積流量、儀表系數(shù)掉電保護(hù)，保護(hù)時(shí)間大于10年
★采用MCU處理器，完成數(shù)據(jù)采集處理顯示輸出、累積流量瞬時(shí)流量同
★屏顯示方便的人機(jī)界面實(shí)現(xiàn)，以標(biāo)準(zhǔn)485形式進(jìn)行數(shù)輸。
★采用全硬質(zhì)合金（碳化鎢）屏蔽式懸臂梁結(jié)構(gòu)軸承，集轉(zhuǎn)動(dòng)軸承與壓力軸承于一體，大大了軸承壽命，并可在有少量泥沙與污物的介質(zhì)中工作。
★采用1Cr18Ni9Ti全不銹鋼結(jié)構(gòu)，（渦輪采用2Cr13）腐性能好。
★容易維修，有自整流的結(jié)構(gòu)，小型輕巧，結(jié)構(gòu)簡(jiǎn)單，可在短時(shí)間內(nèi)將其組合拆開(kāi)，
★內(nèi)部清洗簡(jiǎn)單。
★有較強(qiáng)磁干擾和振動(dòng)能力、性能、壽命長(zhǎng)
★下限流速低,測(cè)量范圍寬，
★現(xiàn)場(chǎng)顯示型液晶屏顯示清晰直觀，功耗低，3V鋰電池供電可連續(xù)運(yùn)行5年以上
★耐腐蝕，適用于酸堿溶液
HQ-LWQ渦輪式流量計(jì)技術(shù)參數(shù)：
公稱口徑： 管道式：DN4～DN200
式：DN100～DN2000
等級(jí)： 管道式：&plun;0.5級(jí)，&plun;1.0級(jí)
式：&plun;1.5級(jí)、&plun;2.5級(jí)
高的可達(dá)0.2級(jí)
環(huán)境溫度： -20℃～50℃
介質(zhì)溫度： 測(cè)量液體：-20℃～120℃
測(cè)量氣體：-20℃～80℃
大氣壓力： 86KPa～106KPa
公稱壓力： 1.6 Mpa、2.5Mpa、6.4Mpa、25Mpa
爆等級(jí)： ExdIIBT4
連接方式： 螺紋連接、法蘭夾裝、法蘭連接、式等
直管段要求：氣體：上游直管段應(yīng)≥10DN，下游直管段應(yīng)≥5DN
液體：上游直管段應(yīng)≥20DN，下游直管段應(yīng)≥5DN
式：上游直管段應(yīng)≥20DS，下游直管段應(yīng)≥7DS（DS為管道實(shí)測(cè)內(nèi)徑）
顯示方式： （1）遠(yuǎn)傳顯示：脈沖輸出、電流輸出(配顯示儀表)
（2）現(xiàn)場(chǎng)顯示：8位LCD顯示累積流量，單位(m3)
4位LCD顯示瞬時(shí)流量，單位(m3/h)、電池電量、頻率、流速
（3）溫度壓力補(bǔ)償型：
A、顯示標(biāo)準(zhǔn)瞬時(shí)流量及標(biāo)準(zhǔn)累計(jì)流量
B、顯示當(dāng)前壓力、溫度、電池電壓
輸出功能：
（1）脈沖輸出，p-p值由供電電源確定
（2）4～20mA兩線制電流輸出
（3）單位體積脈沖輸出及傳感器原始脈沖輸出
（4）帶有RS485通迅接口
供電電源：
（1）DC5～24V
（2）標(biāo)準(zhǔn)型3V鋰電池安裝于儀表內(nèi)部可連續(xù)使用八年以上
（3）溫壓補(bǔ)償型3V鋰電池安裝于儀表內(nèi)部可連續(xù)使用四年以上
傳輸距離： 傳感器至顯示儀距離可達(dá)500m
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