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壓力開(kāi)(kāi)關(guān)(guān)設(shè)定值的調(diào)整

時(shí)(shí)間:2020-09-09 07:53:21 點(diǎn)(diǎn)擊次數(shù):1600

不可調(diào)切換差的控制器設(shè)定值調(diào)整步驟,舉例說(shuō)(shuō)明如下:
【例一】選用型號(hào)502/7D訂貨號(hào)為0811600的壓力開(kāi)(kāi)關(guān)(guān),要求將壓力上升至0.5MPa(上切換值)發(fā)(fā)出觸點(diǎn)(diǎn)信號(hào),其操作步驟如下(如圖一所示):
1.  松開(kāi)(kāi)鎖緊器,將產(chǎn)(chǎn)品旋入壓力校驗(yàn)臺(tái)的螺紋接口上,注意得用扳手夾持傳感器的平面部分,防止開(kāi)(kāi)關(guān)(guān)殼體與傳感器發(fā)(fā)生相對(duì)轉(zhuǎn)動(dòng)(dòng);
2. 打開(kāi)(kāi)蓋板,將電纜穿過(guò)(guò)電纜接口接入端子板中,電纜另一頭接上萬(wàn)(wàn)用表;
3.將壓力加至0.5MPa此值可從標(biāo)準(zhǔn)壓力計(jì)中讀出;
4.順時(shí)(shí)針旋動(dòng)(dòng)設(shè)定值調(diào)節(jié)螺桿,使設(shè)定值由大變小,直至開(kāi)(kāi)關(guān)(guān)觸點(diǎn)(diǎn)在0.5MPa處切換;
旋緊鎖緊器,調(diào)節(jié)壓力校驗(yàn)臺(tái)的壓力,使壓力在0.5MPa上下來(lái)(lái)回變化,檢驗(yàn)壓力上升時(shí)(shí),觸點(diǎn)(diǎn)的切換值是否是0.5MPa,此值即為要設(shè)定的上切換值,其對(duì)應(yīng)的下切換值應(yīng)是0.5MPa減去切換差0.035MPa(左右),即為0.465MPa(左右)*。      


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