描述
1.产品定位与核心功能
1.1应用场景
汽轮机/发电机监测：
在核电站、火电厂中，实时监测转子轴向位移、径向振动，防止动静部件摩擦、转子不平衡等故障，保障机组安全运行。
通过4-20mA或Modbus信号将数据传输至DCS/PLC系统，实现报警联锁控制。
压缩机/风机监测：
在石油化工、天然气输送领域，监测压缩机转子振动，结合频谱分析诊断轴承磨损、齿轮故障，优化维护计划。
支持Bently Nevada的System 1软件进行振动趋势分析与故障预警。
水轮机/泵监测：
在水电站、市政供水系统中，测量水轮机主轴振动，防止气蚀、叶片断裂等故障，延长设备寿命。
1.2技术亮点
高精度电涡流传感技术：
采用电涡流原理，非接触式测量转子与探头间隙，分辨率可达0.1μm，适用于高速旋转机械（转速＞3000rpm）的微小振动监测。
宽温度适应性：
工作温度范围-35℃至+85℃，耐受工业现场高温/低温环境，确保传感器稳定性。
抗干扰能力强：
电磁兼容性（EMC）符合IEC 61000-4-2/3/4/5/6标准，抵抗静电放电、电快速瞬变、浪涌等干扰，保障信号可靠性。
模块化设计：
与Bentley 3500系列监测器无缝兼容，支持热插拔更换，减少停机维护时间。
2.技术规格与详细参数
2.1基础参数
参数规格
型号350077M 176449-07
制造商Bentley Nevada（现属Baker Hughes）
系列3500系列前置器（配套3500监测器使用）
测量类型电涡流位移/振动传感器前置器
量程范围0-25.4mm（1英寸）（典型值，具体取决于探头型号）
线性范围±0.5mm至±5mm（根据探头型号调整）
灵敏度8mV/μm（典型值）（输出电压与间隙变化成正比）
温度范围工作温度：-35℃至+85℃
存储温度：-40℃至+100℃
防护等级IP20（需安装在3500机架内，机架防护等级为IP66）
防爆认证可选：
-ATEX Zone 2（Ex nA）
-IECEx（需根据订单确认）
1.Product positioning and core functions
1.1 Application scenarios
Steam turbine/generator monitoring:
In nuclear power plants and thermal power plants,real-time monitoring of rotor axial displacement and radial vibration can be performed to prevent faults such as friction between moving and static parts and rotor imbalance,and to ensure safe operation of the unit.
Transmit data to the DCS/PLC system through 4-20mA or Modbus signals to achieve alarm interlock control.
Compressor/fan monitoring:
In the fields of petrochemicals and natural gas transportation,monitor compressor rotor vibration,combine spectrum analysis to diagnose bearing wear and gear failure,and optimize maintenance plans.
Support Bently Nevada’s System 1 software for vibration trend analysis and fault warning.
Turbine/pump monitoring:
In hydropower stations and municipal water supply systems,measure turbine main shaft vibration to prevent faults such as cavitation and blade breakage,and extend equipment life.
1.2 Technical highlights
High-precision eddy current sensing technology:
Using the eddy current principle,non-contact measurement of the gap between the rotor and the probe,the resolution can reach 0.1μm,which is suitable for micro-vibration monitoring of high-speed rotating machinery(speed>3000rpm).
Wide temperature adaptability:
The operating temperature range is-35℃to+85℃,which can withstand high/low temperature environments in industrial sites to ensure sensor stability.
Strong anti-interference ability:
Electromagnetic compatibility(EMC)complies with IEC 61000-4-2/3/4/5/6 standards,resists interference such as electrostatic discharge,electrical fast transients,surges,etc.,and ensures signal reliability.
Modular design:
Seamlessly compatible with Bentley 3500 series monitors,supports hot-swap replacement,and reduces downtime for maintenance.
2.Technical specifications and detailed parameters
2.1 Basic parameters
Parameters Specifications
Model 350077M 176449-07
Manufacturer Bentley Nevada(now Baker Hughes)
Series 3500 series preamplifier(for use with 3500 monitor)
Measurement type Eddy current displacement/vibration sensor preamplifier
Range 0-25.4mm(1 inch)(typical,depending on the probe model)
Linear range±0.5mm to±5mm(adjusted according to the probe model)
Sensitivity 8mV/μm(typical)(output voltage is proportional to the gap change)
Temperature range Operating temperature:-35℃to+85℃
Storage temperature:-40℃to+100℃
Protection level IP20(needs to be installed in the 3500 rack,the rack protection level is IP66)
Explosion-proof certification Optional:
-ATEX Zone 2(Ex nA)
-IECEx(need to be confirmed according to order)
ABB Model: GBU72 3BHE055094R0002 Model: 3BHE055094R0002 GBU72 Model: GBU72 Model: 3BHE055094R0002 Model: 3BHE031197R0001 Model: 3BHB030310R0001 Model: 73BHE055094R0002 GBU72 Model: 73BHE055094R0002 Model: GBU72 Model: ABB PCS6000 PRODUCT FAMLIY ABB 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101
