E+H电子振动式音叉开关FTM20是用于固体散料的一体化音叉限位检测开关。FTM20音叉限位检测开关适用于非流动性固体细料和粗料。多样化的设计用途广泛，取得了粉尘防爆应用认证。
E+H电子振动式音叉开关FTM20技术参数如下：
测量原理 固体音叉
特点/应用 测量细谷粒的限位开关；通用单杆型；无需标定；不受粘附及外部振动的影响；外部读数，一体化型
电源/通信 10 - 45V DC，19 - 253 VAC继电器，DC PNP：10 - 45 V
环境温度 -40 …70℃
过程温度 -40 …150℃
过程绝压/zui大过压界限 真空可达25 bar
zui小被测介质密度 200 g/l
接触介质部件 316L
过程连接 "螺纹：1" DIN2999、1 1/4" NPT、1 1/2" DIN2999、1 1/2" NPT"
传感器长度 225 mm
输出 DPDT继电器，DC PNPzui大350mA
证书和认证 ATEX、FM、CSA
应用局限 密度：< 200g/l；颗粒大小：> 20mm；不适用于液态介质
无需校准：调试简单（即插即用）；抗粘附，免维护；无机械活动件、无需维护，无磨损，使用寿命长。传感器采用316L材质：与建筑材料磨擦也几乎无损伤；采用F16塑料外壳，外壳盖带视窗，从外部可查看开关状态；可提供F18铝制外壳；不受外部振动和流动噪音影响；通过FM或CSA认证的ATEX II 1/3 D防爆保护。
E+H其它常用型号：
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