TRICONEX 9761-210

TRICONEX 9761-210

 

TRICONEX 9761-210由振蕩器產(chǎn)生的交流電壓加在電導(dǎo)池上，流過電導(dǎo)池的電流經(jīng)放大器適當(dāng)放大轉(zhuǎn)換為電壓信號(hào)，相敏檢波后就得到了與被測電導(dǎo)率成正比的電壓。單片機(jī)對(duì)溫度信號(hào)和電導(dǎo)率信號(hào)輪流采樣進(jìn)行A/D轉(zhuǎn)換，經(jīng)微處理器計(jì)算就得到了被測溶液在25℃基準(zhǔn)溫度時(shí)的電導(dǎo)率。 
　　溫度測量部分采用Pt100鉑電阻為溫度傳感器，測量電路用三線制的方法消除了電纜線電阻的影響，測量精度較高。 

【公　司】： 廈門泰尼電氣有限公司
【主　營】： AB、GE、施耐德等各類PLC產(chǎn)品
【價(jià)　格】： 電議
【發(fā)布人】： 張亮
【電  話】： 18030028083
【所在地】： 福建 - 廈門
【座　機(jī)】： 0592-6809819
【來　源】： 供應(yīng)信息 > 電工、電氣 > PLC
【Q　  Q】： 2314094943
　　2、 隔離輸出電流與被測電導(dǎo)率之間的關(guān)系 
　　儀器(4～20)mA電流輸出所對(duì)應(yīng)的電導(dǎo)率范圍可由用戶設(shè)置，例如：被測溶液的電導(dǎo)率范圍為(0.050～1.00)μS/cm之間，為了能在輸出信號(hào)中更好地體現(xiàn)被測電導(dǎo)率值，可將輸出上限設(shè)置為1.00，輸出下限設(shè)置為0.050。輸出信號(hào)與電導(dǎo)率的關(guān)系由下式計(jì)算： 

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