現(xiàn)貨、英維思TRICONEX、西屋、西門子停產(chǎn)卡件、模塊！特多優(yōu)惠等您來?。?/span>

市場上通用型EMF的性能有較大差別，有些精度高、功能多，有些精度低、功能簡單。精度高的儀表基本誤差為（±0.5%～±1%）R，精度低的儀表則為（±1.5%～±2.5%）FS，兩者價格相差1～2倍。因此測量精度要求不很高的場所（例如非貿(mào)易核算僅以控制為目的，只要求高可靠性和優(yōu)良重復性的場所）選用高精度儀表在經(jīng)濟上是不合算的。
有些型號儀表聲稱有更高的精確度，基本誤差僅（±0.2%～±0.3%）R，但有嚴格的安裝要求和參比條件，例如環(huán)境溫度20～22℃，前后直管段長度要求分別大10D和3D（通常為5D和2D），甚至提出流量傳感器要與前后直管組成一體在流量標準裝置上作實流校準，以減少夾裝影響。因此在多種型號選擇比較時不要單純只看高指標，要詳細閱讀制造廠樣本或說明書做綜合分析。
市場上EMF的功能差別也很大，簡單的就只是測量單向流量，只輸出模擬信號帶動后位儀表；多功能儀表有測雙向流、量程切換、上下限流量報警、空管和電源切斷報警、小信號切除、流量顯示和總量計算、自動核對和故障自診斷、與上位機通信和運動組態(tài)等。有些型號儀表的串行數(shù)字通信功能可選多種通信接口和專用芯片（ASIC），以連接HART協(xié)議系統(tǒng)、PROFTBUS、Modbus、CONFIG、FF現(xiàn)場總線等。
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廈門仲鑫達自動化設(shè)備有限公司
歐陽英（銷售經(jīng)理）
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電話：0592-5856292
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所有備件的質(zhì)保期均為1年，經(jīng)過專業(yè)測試認證。

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我們僅采用快遞方式遞送備件。（順豐）

如果您發(fā)現(xiàn)其他供貨商為相同產(chǎn)品提供更為低廉的價格，我們也愿意參照其價格向您提供進一步的折扣。如果還有其他任何問題，請隨時與我們聯(lián)系。

請讓我們知道您有任何，備品，備件，的需要，我們可以給您進一步的援助，我們等候您的詢盤。

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