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使用BURKERT電導(dǎo)率變送器應(yīng)主要事項
BURKERT寶德8226型電導(dǎo)率變送器包括電導(dǎo)率傳感器和帶顯示器的變送器,外殼為IP65防濺塑料。傳感器元件為PVDF或PEEK外殼內(nèi)的一對電磁線圈。
為了測量電導(dǎo)率,在初級線圈加一個交流電源,感應(yīng)磁場即在次級線圈產(chǎn)生電流。該感應(yīng)電流的強(qiáng)度直接反映了溶液的電導(dǎo)率。
標(biāo)準(zhǔn)供貨在傳感器外殼內(nèi)帶有溫度傳感器,用于自動溫度補(bǔ)償。
變送器將測量信號進(jìn)行轉(zhuǎn)換并顯示為其實際值。8226型變送器為3線制,需要12-30V DC電源。
變送器具有4-20mA標(biāo)準(zhǔn)信號輸出,該信號與電導(dǎo)率或溫度成正比。繼電器的設(shè)定值可自由調(diào)整。
具有多種接口的不銹鋼、黃銅和塑料接頭。
技術(shù)參數(shù)
測量范圍
電導(dǎo)率 100 μS/cm - 2 S/cm
電阻率 0.5 Ω·cm - 10 kΩ·cm
測量誤差 測量值的±2%
溫度補(bǔ)償 標(biāo)準(zhǔn)供貨帶集成溫度傳感器自動溫度補(bǔ)償,
參考溫度25℃
介質(zhì)溫度 0 to 120°C (32 to 248°F) (取決于接頭材質(zhì),
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