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源與信號(hào)電纜外觀檢查是否完好;v電纜穿管、接線(xiàn)腔內(nèi)是否潮濕,密封圈完好,絲扣上涂脂,密封不用的進(jìn)線(xiàn)口;v流量計(jì)的零點(diǎn)檢查與周期標(biāo)定診斷代碼診斷代碼v 代碼 顯示信息 可能的故障v A1 EEPROM Checksum Core Processor 流量計(jì)需要返修v A2 RAM Error Core Processor 重新上電 /流量計(jì)需要返修v A3 Sensor failure 檢查測(cè)試點(diǎn)v A4 Temperature out of range 檢查測(cè)試點(diǎn)v A5 Input over range 檢查測(cè)試點(diǎn)v A6 Field device not characterizeded 檢查特性化 . 特別要檢查 FCF和 K1值v A7 Real time interrupt failure 流量計(jì)需要返修v A8 Density outside limits 檢查測(cè)試點(diǎn)v A9 Field device warming up 流量計(jì)預(yù)熱v A10 Calibration failed 重新上電, 然后重新標(biāo)定v A11 Excess calibration correction, zero too low 重新上電, 然后重新調(diào)零v A12 Excess calibration correction, zero too high 重新上電, 然后重新調(diào)零v A13 Process too noisy to perform auto zero 消除或降低干擾, 重新調(diào)零v A14 Electronics failure 變送器需要返修 A15Data loss possible 重新上電,檢查組態(tài)數(shù)據(jù)v A16 Line RTD Overrange 檢查測(cè)試點(diǎn)v A17 Case RTD Overrange 檢查測(cè)試點(diǎn)v A18 EEPROM Checksum - 1000/2023 變送器需要返修 診斷代碼診斷代碼v 代碼 375顯示信息 可能的故障v A19 RAM Error - 1000/2023 重新上電或返修v