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上海乾思生物科技有限公司
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SIGMA現(xiàn)貨,SIGMA代理

電子秤的檢修方法

時間:2011/11/16閱讀:781
分享:

 檢修人員必須具備一定的電子技術(shù)和數(shù)字電路知識,全面了解電子秤的基本工作原理、性能,并能熟練掌握電子秤的操作。維修人員在動手檢修前,首先要了解故障現(xiàn)象和使用情況,例如:現(xiàn)場情況、環(huán)境條件、有無超重現(xiàn)象,秤體和儀表是否有碰撞、外傷,故障現(xiàn)象及發(fā)生時間等等,還要做一些外觀檢查,目的是縮短檢修時間。檢修時一般可根據(jù)故障現(xiàn)象,用聽、嗅、看、摸、鍵操作等方法進行,使電子秤帶電工作狀態(tài),按正常使用進行檢查。

聽:秤在工作時是否有異常響聲,有無報警聲,響聲是否有規(guī)律;
嗅:電子秤是否有異常氣味,如變壓器、引線、元件、印制板等因電路發(fā)熱,燒壞等原因,可能發(fā)出很大的異味;
看:顯示器顯示狀態(tài),是否有提示,外觀是否有損傷。各連接件是否可靠;
操作電子秤各功能是否正常,按鍵是否靈活、有效;
拆開機蓋,觸摸集成電路和元器件,感覺溫度是否過高,對可疑器件可用好器件直接替代,此法對整機電流過大的故障特別有效。
儀器檢查是在以上檢查的基礎(chǔ)之上,縮小檢查范圍,利用儀器對故障部位電壓、電流進行檢測,分析判斷找出故障點或損壞的器件。
注:在未接通儀表和秤體信號時,打開電源檢查儀表,某些功能不起作用是正常的,遇此情況要注意,不要誤判鍵功能故障。

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