PRL-200料位开关
PRL-200阻旋式料位开关产品介绍（中英文）
PRL-200阻旋式料位开关是一种依据被测物料密度设计的接触型料位检测装置，适用于粉粒状、块状物料的料位监测。该产品采用永磁电机驱动叶片旋转（转速5-6转/分），当物料上升阻碍叶片转动时，机械传动机构会触发开关信号并自动切断电源。其耐热性能支持罐内最高200℃的工作环境（PRL-200S型号可达400℃），轴保护管设计增强密封性，料杆标准长度150mm并支持定制加长。产品通过铝合金铸造壳体与静电喷塑工艺实现耐冲击和防腐蚀，叶片过载时会自动打滑保护电机，维护时无需整体拆卸料仓。典型应用包括电力、水泥行业的原煤仓、生料仓等场景，安装时需避开进料口并调整弹簧扭力以适应不同物料密度。135
The PRL-200 Rotary Paddle Level Switch is a mechanical point level detector designed for bulk solids like powders and granules. Its rotating paddle (1 RPM) gets obstructed by rising material, triggering a microswitch signal through spring-loaded displacement mechanism. The heat-resistant version withstands up to 200°C process temperature (400°C for PRL-200S) with optional air cooling accessories. Standard 150mm probe length can be customized in 100mm increments, while the triple-sealed shaft prevents dust ingress. The aluminum alloy housing with anti-corrosion coating ensures durability in harsh environments like coal plants and cement silos. Featuring overload slip clutch protection and top/side mounting options, it requires no sensitivity adjustment and maintains stable performance even with material property variations. Installation recommendations include avoiding direct material flow impact and selecting appropriate blade size for lightweight substances.51214
产品特点与工作原理
该设备通过纯机械结构实现料位检测，无需电子调试即可投入运行。微电机经减速后带动检测叶片低速旋转，物料阻挡叶片时会使主轴产生旋转位移，先触发料位信号微动开关，随后切断电机电源；当料位下降后，弹簧机构自动复位并恢复电机运转。独特的三重轴密封和整块铝合金散热片设计有效应对粉尘侵入和高温工况，且扭力可通过弹簧调节以适应0.5g/cm³及以上密度的物料。垂直安装时可选450-3000mm加长轴型号（PRL-200EB/ED系列），水平安装需保持接线盒朝下防雨。相比其他原理的料位开关，其抗振动、抗冲击性能较强，并能克服物料粘附问题。6922
Key features include maintenance-free operation with all-metal construction and IP65 protection. The motor-driven paddle rotates until material obstruction activates the torque-sensitive mechanism, which simultaneously engages SPDT contacts (10A/250V capacity) and stops the motor. Automatic restart occurs when material level drops below the paddle. Customizable options include flange types (JIS5K65A standard), probe lengths, and paddle configurations (80×80mm standard blade). The device s mechanical design eliminates false signals caused by temperature/humidity changes, with optional extended shafts for deep silos. Noteworthy applications involve fly ash detection in thermal power plants and raw material monitoring in steel mills, where its wear-resistant SUS304 blade ensures long service life.101720
应用场景与安装建议
广泛应用于冶金、化工等行业的料位控制场景，特别适合存在振动或高温的工况环境。在水泥厂中可用于熟料仓的满仓报警，安装时需在叶片上方加装防护板避免物料直接冲击；检测轻质物料时可更换大尺寸叶片提高灵敏度。罐外使用环境温度建议不超过55℃，高粘性物料推荐顶置垂直安装方式以减少挂料影响。对于400℃以上超高温场合，可配合风冷装置使用。产品提供AC100-220V或DC24V多种电源规格，功耗约2.5-4W，法兰接口支持JIS标准及其他定制规格。71519
Typical installations cover material level monitoring in hoppers, bins and silos across mining, food processing industries. For cohesive materials like asphalt, top-mounted vertical installation with extended shaft is recommended to prevent material buildup. The paddle should be positioned away from filling streams, with protective baffles added when handling abrasive substances. In outdoor applications, rain shields are advised for vertical installations. Multiple units installed in same vessel require minimum 1m spacing to avoid shaft entanglement. The product s straightforward mechanical operation makes it suitable for remote locations where complex electronics may fail, while its modular design allows field replacement of components like torque springs or bearings without full disassembly.212425
PRL-200料位开关
PRL-200料位开关
一、产品简介：
阻旋开关是用于固态物料（包括粉状、块状、粒状、胶状等）的物位控制器。它具有密封性好、过载能力强、轻便易装、输出触点容量大等特点。针对不同比重的物料可通过调弹簧的拉力来实现，其接触物料部分全为不锈钢材料。阻旋开关在化工、塑料、水泥、制药、饲料、食品等行业得到了广泛的应用。
二、工作原理
电机带动叶片旋转，当被侧介质到达叶片位置时，叶片手足停止转动，从而触动后面的微动开关输出开关信号，当被测介质下降离开叶片时，叶片在弹簧的作用下恢复原位继续转动。弹簧的拉力可根据所测介质的比重进行调整，物料比重大时弹簧调整到*强，反之调至*弱。
三、产品特点
1.美国小料斗专业型技术，三个轴承支撑，运行更可靠；
2.开创的密封设计可防止粉尘渗入（砖利实际）；
3.扭力稳定可靠且扭力大小可调节；
4.叶片承受过重负载，离合器自动打滑，保护电机不受损坏；
5.机电分离式结构，整体免拆卸易维护；
6.接线盒IP65的防护等级，密封性好，可室外使用；
7.特殊叶片可使用于低密度物料；
8.适用范围广泛，可用于钢铁，水泥，电力，饲料，化学塑胶，化学肥料等；
四、技术参数
1.电源：220VAC/110VAC/24VAC/24VDC
2.触点容量：250VAC/10A SPDT(单刀双掷）
3.功率：4W
4.叶片转速：1RPM(转/分）
5.力矩：1.0kg×cm
6.物料比重：≥0.5g/cm3
7.工作温度：-10℃-80℃（*高可达400℃）
8.绝缘电阻：≥100MΩ
9.介电强度：1500*1min
10.防护等级：IP65
11.叶片材质：SUS304
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