描述
一、3701/55 323174-01超速保护紧急停车系统
核心功能
超速保护：实时监测旋转机械转速，当超过预设阈值时触发紧急停机，防止设备因超速损坏。
紧急停车：集成安全继电器输出，可直接控制阀门或断路器，实现快速切断动力源。
安全认证：符合SIL 2/3安全完整性等级要求，通过TÜV等第三方机构认证，适用于石油、化工等高危行业。
技术参数
输入信号：支持转速传感器（如磁阻式、电涡流式）的脉冲或模拟信号输入。
响应时间：超速检测响应时间≤50ms，紧急停车输出延迟≤100ms。
工作电压：24VDC/120VAC，兼容工业现场常见电源。
环境适应性：工作温度-30℃~+70℃，防护等级IP65，抗振动等级IEC 60068-2-6。
应用场景
汽轮机/压缩机：防止转子断裂或飞车事故。
风机/泵：避免因超速导致的叶轮损坏或机械故障。
二、3701/55 289761-01接口模块
核心功能
信号调理：将传感器输出的微弱信号（如mV级振动信号）放大、滤波并转换为标准信号（如4-20mA）。
协议转换：支持Modbus RTU/TCP、HART等协议，实现与DCS/PLC系统的数据交互。
多传感器接入：可同时连接多个振动、位移、温度传感器，降低系统复杂度。
技术参数
输入通道：8通道差分输入，支持热电偶、RTD、电压、电流信号。
输出通道：4通道模拟输出（4-20mA/0-10V）和2通道继电器输出。
精度：模拟量输入精度±0.1%FS，温度测量精度±0.5℃。
隔离电压：通道间隔离电压≥1500VAC，电源与信号间隔离电压≥2500VAC。
应用场景
状态监测系统：作为Bently Nevada 3500系统的前端采集单元，实现振动、温度等参数的集中采集。
工业物联网（IIoT）：通过Modbus TCP协议将数据上传至云平台，支持远程监控与预测性维护。
三、3701/55通用数据采集模块（假设型号）
核心功能
多参数采集：支持振动、温度、压力、流量等多类型传感器接入，实现一站式数据采集。
边缘计算：内置算法对采集数据进行预处理（如FFT分析、包络解调），减少上位机计算负担。
无线传输：可选配LoRa、NB-IoT等无线模块，实现偏远地区设备的数据回传。
技术参数
采样率：振动通道采样率最高100kSPS，温度通道采样率10SPS。
存储容量：内置128MB Flash存储，支持1个月数据本地缓存。
防护等级：IP67，适用于户外或潮湿环境。
应用场景
风电场：监测风机齿轮箱、主轴的振动与温度，预警早期故障。
矿山机械：采集挖掘机、破碎机的振动数据，优化维护计划。
1.3701/55 323174-01 Overspeed protection emergency stop system
Core functions
Overspeed protection:Real-time monitoring of rotating machinery speed,triggering emergency stop when exceeding the preset threshold to prevent equipment damage due to overspeed.
Emergency stop:Integrated safety relay output,can directly control valves or circuit breakers to quickly cut off the power source.
Safety certification:Meets SIL 2/3 safety integrity level requirements,certified by third-party organizations such as TÜV,suitable for high-risk industries such as petroleum and chemical industries.
Technical parameters
Input signal:Supports pulse or analog signal input of speed sensor(such as magnetoresistive type,eddy current type).
Response time:Overspeed detection response time≤50ms,emergency stop output delay≤100ms.
Working voltage:24VDC/120VAC,compatible with common power supplies in industrial sites.
Environmental adaptability:Working temperature-30℃~+70℃,protection level IP65,vibration resistance level IEC 60068-2-6.
Application scenarios
Turbine/compressor:prevent rotor breakage or runaway accidents.
Fan/pump:avoid impeller damage or mechanical failure caused by overspeed.
2.3701/55 289761-01 interface module
Core functions
Signal conditioning:amplify,filter and convert weak signals(such as mV vibration signals)output by sensors into standard signals(such as 4-20mA).
Protocol conversion:support Modbus RTU/TCP,HART and other protocols to achieve data interaction with DCS/PLC systems.
Multi-sensor access:multiple vibration,displacement and temperature sensors can be connected at the same time to reduce system complexity.
Technical parameters
Input channels:8-channel differential input,supporting thermocouples,RTD,voltage and current signals.
Output channels:4-channel analog output(4-20mA/0-10V)and 2-channel relay output.
Accuracy:analog input accuracy±0.1%FS,temperature measurement accuracy±0.5℃.
Isolation voltage:Isolation voltage between channels≥1500VAC,isolation voltage between power supply and signal≥2500VAC.
Application scenarios
Condition monitoring system:As the front-end acquisition unit of the Bently Nevada 3500 system,it realizes centralized acquisition of parameters such as vibration and temperature.
Industrial Internet of Things(IIoT):Upload data to the cloud platform through the Modbus TCP protocol to support remote monitoring and predictive maintenance.
III.3701/55 Universal Data Acquisition Module(Assuming Model)
Core functions
Multi-parameter acquisition:Supports access to multiple types of sensors such as vibration,temperature,pressure,and flow to achieve one-stop data acquisition.
Edge computing:Built-in algorithms pre-process the collected data(such as FFT analysis and envelope demodulation)to reduce the computing burden of the host computer.
Wireless transmission:Optional wireless modules such as LoRa and NB-IoT can be used to realize data backhaul of equipment in remote areas.
Technical parameters
Sampling rate:The sampling rate of the vibration channel is up to 100kSPS,and the sampling rate of the temperature channel is 10SPS.
Storage capacity:Built-in 128MB Flash storage,supports 1 month of local data cache.
Protection level:IP67,suitable for outdoor or humid environments.
Application scenarios
Wind farm:monitor the vibration and temperature of wind turbine gearbox and main shaft,and warn of early failure.
Mining machinery:collect vibration data of excavators and crushers to optimize maintenance plans.
