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    當前位置:網站首頁 > 智能電能表 > 詳情
    產品名稱:
    單相電子式多費率電能表(LCD)
    產品型號:
    DDSF121型
    產品說明書:

    產品概述

          DDSF121系列單相電子式多費率電能表是依據GB/T15284-2002《復費率(分時)電能表特殊要求》開發成功的多費率電度表系列產品之一。它由靜止式電能計量單元和多費率數據處理單元組成,采用液晶顯示,具有紅外和RS485通信功能。該產品運用了先進的軟件設計手段,采用了高性能的硬件電路和先進的SMT生產工藝制造,其技術先進、功能完善,具有計量精度高、長期穩定性好、過載能力強、可靠性好等特點,是供電部門進行分時電能計量的理想首選產品。

          該產品適用于通過RS485通訊網絡或紅外手持儀進行點對點或一主多從的數據交換方式,物理層接口、通信鏈路和計量性能符合GB/T17215-2002的技術規范,DL/T645-1997《多功能電能表通信規約》等標準的技術要求。



    產品參數

    技術參數


    項目技術參數
    參比電壓220V
    參比電流5(40)A、10(60)A、20(80)A
    參比頻率
    50Hz
    精度等級1.0級
    脈沖常數(見銘牌標注)
    日計時誤差≤0.5s/d(25℃±2℃)
    使用壽命≥10年
    電池容量1000mAh
    紅外通訊距離5m(光輻射角小于15度)
    RS485總線終端256個,通訊波特率:1200bps

    電氣參數



    項目技術參數
    正常工作電壓0.9~1.1額定電壓
    極限工作電壓0.75~1.15額定電壓
    功率消耗小于2W、6VA

    氣候條件及溫度范圍


    正常工作溫度-10℃---45℃
    極限工作溫度-25℃---55℃
    貯存和運輸溫度-25℃---70℃
    年平均相對溫度小于85%

    電氣參數

    外型尺寸凈重:約750g




    性能特點

    1. 具有計量正、反向有功電能功能,反向電能按正向電能累計,但反向電能扔單獨存儲。無論是通信、時段切換,正、反向有功電能切換、皆不會影響脈沖累計的準確性。電表具有反向有功電能指示燈。

    2. 可進行4種費率(尖、峰、平、谷)8個時段設置,可跨越零點,時段狀態不會受電網斷、送電及其他惡劣工作環境的影響而改變。

    3. 電能量按總、尖、峰、平、谷電量分別計量、存儲。

    4. 電表內能存儲前12個月的凍結數據,其中包括總、尖、峰、平、谷。電能量數據凍結日為每月1-28日內任意時日,默認為每月1日0時。

    5. 電池采用針焊式備用綠色環保鋰電池,斷電后,備用鋰電池至少可連續提供內置時鐘正常工作10年。

    6. 可通過紅外和RS-485通信接口完成編程和抄表操作。

      電表內置有大功率的繼電器,可通過紅外或RS-485通信對電表負載的供電進行控制。電表具有繼電器斷電指示燈。

    7. 電表具有有功電能脈沖指示燈及電能脈沖輸出接口。

    8. 電表采用LCD顯示方式,可循顯時間、日期、電量等參數,允許設置循顯時間和循顯內容(具體情況請參閱附錄)。電能量在停電時顯示位數為6位整數,2位小數;正常供時顯示位數為7位整數,1位小數。每項顯示時間為5s.

    9. 電表采用硬件時鐘電路。內置時鐘具有日歷計時、閏年自動切換功能。

    10. 電網停電后,所有存儲數據不丟失,并能保持10年以上。反復斷電與上電,電量及脈沖數不會有變化。

    11. 事件記錄功能:電流反向起始時間;最近一次編程時間及編程次數、清零次數等。

    12. 具有停電顯示功能。

    13. 具有時鐘檢測輸出口功能,便于定期檢測時鐘的準確度。

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