E+H電子振動式音叉開關FTM20是用于固體散料的一體化音叉限位檢測開關。FTM20音叉限位檢測開關適用于非流動性固體細料和粗料。多樣化的設計用途廣泛，取得了粉塵防爆應用認證。
E+H電子振動式音叉開關FTM20技術參數如下：
測量原理固體音叉
特點/應用測量細谷粒的限位開關；通用單桿型；無需標定；不受粘附及外部振動的影響；外部讀數，一體化型
電源/通信 10 - 45V DC，19 - 253 VAC繼電器，DC PNP：10 - 45 V
環境溫度 -40 …70℃
過程溫度 -40 …150℃
過程絕壓/zui大過壓界限真空可達25 bar
zui小被測介質密度 200 g/l
接觸介質部件 316L
過程連接 "螺紋：1" DIN2999、1 1/4" NPT、1 1/2" DIN2999、1 1/2" NPT"
傳感器長度 225 mm
輸出 DPDT繼電器，DC PNPzui大350mA
證書和認證 ATEX、FM、CSA
應用局限密度：< 200g/l；顆粒大小：> 20mm；不適用于液態介質
無需校準：調試簡單（即插即用）；抗粘附，免維護；無機械活動件、無需維護，無磨損，使用壽命長。傳感器采用316L材質：與建筑材料磨擦也幾乎無損傷；采用F16塑料外殼，外殼蓋帶視窗，從外部可查看開關狀態；可提供F18鋁制外殼；不受外部振動和流動噪音影響；通過FM或CSA認證的ATEX II 1/3 D防爆保護。
E+H其它常用型號：
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